RadioBanter

RadioBanter (https://www.radiobanter.com/)
-   Policy (https://www.radiobanter.com/policy/)
-   -   24 GHz woes? (https://www.radiobanter.com/policy/28023-24-ghz-woes.html)

Mike Coslo December 28th 04 11:04 PM

24 GHz woes?
 
The FCC is now allowing unlicensed operation in several bands: 6 GHz, 17
GHz and 24 GHz bands, are you concerned about the impact it will have on
Hams?

How many people here even use the GHz bands?

Are there enough Hams to even justify further use?


- Mike KB3EIA -


Phil Kane December 29th 04 01:27 AM

On Tue, 28 Dec 2004 18:04:32 -0500, Mike Coslo wrote:

The FCC is now allowing unlicensed operation in several bands: 6 GHz, 17
GHz and 24 GHz bands, are you concerned about the impact it will have on
Hams?

How many people here even use the GHz bands?

Are there enough Hams to even justify further use?


They used to say the same thing about the bands above 2 meters.

We lost 220-222 MHz. That isn't important unless all the 2m and 3/4m
frequency pairs are used up. It's getting that way here in Ducktown.

--
73 de K2ASP - Phil Kane



Len Over 21 December 29th 04 05:00 AM

In article ws.com, "Phil
Kane" writes:

On Tue, 28 Dec 2004 18:04:32 -0500, Mike Coslo wrote:

The FCC is now allowing unlicensed operation in several bands: 6 GHz, 17
GHz and 24 GHz bands, are you concerned about the impact it will have on
Hams?

How many people here even use the GHz bands?

Are there enough Hams to even justify further use?


They used to say the same thing about the bands above 2 meters.

We lost 220-222 MHz. That isn't important unless all the 2m and 3/4m
frequency pairs are used up.


The two-twenty loss (part of the old band there) was "lost" to hams
some time ago. The Condor Net has been living and doing fine in
what is left above it. BIG network, multiple states involved, all tone
signalling to link along the net, designed that way before micro-
processors became commonplace.

Don't worry, anyone. Morsemanship is still necessary to get on HF
as an amateur. The professionals don't need any morsemanship,
don't use it.



Mike Coslo December 29th 04 02:32 PM

Barry OGrady wrote:
On 29 Dec 2004 05:00:06 GMT, (Len Over 21) wrote:


In article ws.com, "Phil
Kane" writes:


On Tue, 28 Dec 2004 18:04:32 -0500, Mike Coslo wrote:


The FCC is now allowing unlicensed operation in several bands: 6 GHz, 17
GHz and 24 GHz bands, are you concerned about the impact it will have on
Hams?

How many people here even use the GHz bands?

Are there enough Hams to even justify further use?

They used to say the same thing about the bands above 2 meters.

We lost 220-222 MHz. That isn't important unless all the 2m and 3/4m
frequency pairs are used up.


The two-twenty loss (part of the old band there) was "lost" to hams
some time ago. The Condor Net has been living and doing fine in
what is left above it. BIG network, multiple states involved, all tone
signalling to link along the net, designed that way before micro-
processors became commonplace.

Don't worry, anyone. Morsemanship is still necessary to get on HF
as an amateur.



No its not. My amateur license lets me use all amateur bands with no knowledge
of morse.


Barry, I think you're new to the group. As far as I can figure,
Lenover21 kind of speaks out against Morse qualified Hams, or at least
those who support Morse code testing every chance he gets. He has some
pretty strong feelings in that way. That is how we get Morse related
comments here in this thread. In the US of A, there is no Morse code
testing for access to Ham frequencies above 30 MHz, so this thread
doesn't have much to do with Morse code testing.

But that's Len, and we all like him anyhow (at least I do)

- Mike KB3EIA -


Mike Coslo December 29th 04 03:58 PM

Barry OGrady wrote:

On Tue, 28 Dec 2004 17:27:19 -0800 (PST), "Phil Kane" wrote:


On Tue, 28 Dec 2004 18:04:32 -0500, Mike Coslo wrote:


The FCC is now allowing unlicensed operation in several bands: 6 GHz, 17
GHz and 24 GHz bands, are you concerned about the impact it will have on
Hams?

How many people here even use the GHz bands?

Are there enough Hams to even justify further use?


They used to say the same thing about the bands above 2 meters.



There are no bands above 2 meters. Where you thinking of two metres?



Ahhhh, now I get it. Here we use "meter" as the spelling where you would
use "metres". Just like color vs. colour.


We lost 220-222 MHz. That isn't important unless all the 2m and 3/4m
frequency pairs are used up. It's getting that way here in Ducktown.



Do you have more repeaters than hams?


It can be a problem! In my investigations into near space ballooning, we
are pretty much prevented from using 2 meters for a band unless we go
for a simplex repeater. There are a LOT of 2 meter repeaters. Just about
everywhere we would be hitting a lot of repeaters when we keyed up from
100,000 feet. So we will probably use the 70 centimeter band for our
repeater.

- Mike KB3EIA -



Phil Kane December 29th 04 05:56 PM

On Wed, 29 Dec 2004 09:32:00 -0500, Mike Coslo wrote:

Barry, I think you're new to the group.


BarryO has posted here for quite a while. He appears to be an
Australian ham and keeps making statements about his license
(excuse me - "licence") privileges and other off-the-wall things
designed merely to pull chains rather than to contribute to the
discussion at hand. On things like FCC amateur radio policy, he
rarely hits the mark.

I can't decide whether to put him back in my killfile or not.

--
73 de K2ASP - Phil Kane



Len Over 21 December 29th 04 08:54 PM

In article , Barry OGrady
writes:

On 29 Dec 2004 05:00:06 GMT, (Len Over 21) wrote:

In article ws.com, "Phil
Kane" writes:

On Tue, 28 Dec 2004 18:04:32 -0500, Mike Coslo wrote:

The FCC is now allowing unlicensed operation in several bands: 6 GHz, 17
GHz and 24 GHz bands, are you concerned about the impact it will have on
Hams?

How many people here even use the GHz bands?

Are there enough Hams to even justify further use?

They used to say the same thing about the bands above 2 meters.

We lost 220-222 MHz. That isn't important unless all the 2m and 3/4m
frequency pairs are used up.


The two-twenty loss (part of the old band there) was "lost" to hams
some time ago. The Condor Net has been living and doing fine in
what is left above it. BIG network, multiple states involved, all tone
signalling to link along the net, designed that way before micro-
processors became commonplace.

Don't worry, anyone. Morsemanship is still necessary to get on HF
as an amateur.


No its not. My amateur license lets me use all amateur bands with no
knowledge of morse.


So...is there some secret U.S. amateur regulation restructuring
that has already removed the morse code test?!? [other than a
specific, individual medical waiver of it, possible years ago]

My commercial license let me transmit RF on a far wider range
of the EM spectrum than just the amateur bands, certainly those
few spectrum slices allocated on a primary basis to just amateurs.

Didn't even need any "license" to transmit on HF, on VHF, on UHF
and on microwaves 51+ years ago when in military service.

An amateur radio operator license is NOT a noble title indicating
a licensee is "superior" to all other human beings...except in the
personal imaginings of a few who are lost in a fantasyland.




JAMES HAMPTON December 29th 04 09:44 PM

Hello, Phil and Barry

As a kind hearted soul who is willing to assist some folks having
communications difficulties, I have asked a friend of mine in the U.K. for
some assistance.

Here is his reply:
********* start of copied message**********
Hi James and All,

I will willingly help you with your project Jim, just send me what you
want to say in your words and I will convert it to an English style of
your choosing.

I can do you, the Queens English, London Cockney, London North, London
South, not that I have ever been south of the river, Middle England,
West Country or Welsh (real Welsh mind, not Canadian Welsh), LOL.
********* end copy*********


So, if Barry would be so kind to inform us as to what kind of colour should
be applied to our conversation, I shall ask my friend, Bernie, in the U.K.
to translate for us.


With all due regards from Rochester, NY
Jim AA2QA


"Barry OGrady" wrote in message
...
On Tue, 28 Dec 2004 17:27:19 -0800 (PST), "Phil Kane"

wrote:

On Tue, 28 Dec 2004 18:04:32 -0500, Mike Coslo wrote:

The FCC is now allowing unlicensed operation in several bands: 6 GHz, 17
GHz and 24 GHz bands, are you concerned about the impact it will have on
Hams?

How many people here even use the GHz bands?

Are there enough Hams to even justify further use?


They used to say the same thing about the bands above 2 meters.


There are no bands above 2 meters. Where you thinking of two metres?

We lost 220-222 MHz. That isn't important unless all the 2m and 3/4m
frequency pairs are used up. It's getting that way here in Ducktown.


Do you have more repeaters than hams?




--
73 de K2ASP - Phil Kane



-Barry
========
"I see only with deep regret that God punishes so many of His children for
their numerous stupidities, for which only He Himself can be held

responsible;
in my opinion, only His nonexistence could excuse Him."
[A. Einstein (Letter to Edgar Meyer, Jan. 2, 1915)]

Web page: http://members.iinet.net.au/~barry.og
Atheist, radio scanner, LIPD information.




Len Over 21 December 30th 04 04:24 AM

In article , Mike Coslo
writes:

Ahhhh, now I get it. Here we use "meter" as the spelling where you would
use "metres". Just like color vs. colour.


A litre is two pints and a quartre... :-)




Len Over 21 December 30th 04 06:12 AM

In article , Barry OGrady
writes:

On 29 Dec 2004 05:00:06 GMT, (Len Over 21) wrote:

In article ws.com, "Phil
Kane" writes:

On Tue, 28 Dec 2004 18:04:32 -0500, Mike Coslo wrote:

The FCC is now allowing unlicensed operation in several bands: 6 GHz, 17
GHz and 24 GHz bands, are you concerned about the impact it will have on
Hams?

How many people here even use the GHz bands?

Are there enough Hams to even justify further use?

They used to say the same thing about the bands above 2 meters.

We lost 220-222 MHz. That isn't important unless all the 2m and 3/4m
frequency pairs are used up.


The two-twenty loss (part of the old band there) was "lost" to hams
some time ago. The Condor Net has been living and doing fine in
what is left above it. BIG network, multiple states involved, all tone
signalling to link along the net, designed that way before micro-
processors became commonplace.

Don't worry, anyone. Morsemanship is still necessary to get on HF
as an amateur.


No its not. My amateur license lets me use all amateur bands with no
knowledge of morse.


So...is there some secret U.S. amateur regulation restructuring
that has already removed the morse code test?!? [other than a
specific, individual medical waiver of it, possible years ago]

My commercial license let me transmit RF on a far wider range
of the EM spectrum than just the amateur bands, certainly those
few spectrum slices allocated on a primary basis to just amateurs.

Didn't even need any "license" to transmit on HF, on VHF, on UHF
and on microwaves 51+ years ago when in military service.

An amateur radio operator license is NOT a noble title indicating
a licensee is "superior" to all other human beings...except in the
personal imaginings of a few who are lost in a fantasyland.




Mike Coslo December 30th 04 02:41 PM

Len Over 21 wrote:

In article , Barry OGrady
writes:


On 29 Dec 2004 05:00:06 GMT, (Len Over 21) wrote:


In article ws.com, "Phil
Kane" writes:


On Tue, 28 Dec 2004 18:04:32 -0500, Mike Coslo wrote:


The FCC is now allowing unlicensed operation in several bands: 6 GHz, 17
GHz and 24 GHz bands, are you concerned about the impact it will have on
Hams?

How many people here even use the GHz bands?

Are there enough Hams to even justify further use?

They used to say the same thing about the bands above 2 meters.

We lost 220-222 MHz. That isn't important unless all the 2m and 3/4m
frequency pairs are used up.

The two-twenty loss (part of the old band there) was "lost" to hams
some time ago. The Condor Net has been living and doing fine in
what is left above it. BIG network, multiple states involved, all tone
signalling to link along the net, designed that way before micro-
processors became commonplace.

Don't worry, anyone. Morsemanship is still necessary to get on HF
as an amateur.


No its not. My amateur license lets me use all amateur bands with no
knowledge of morse.



So...is there some secret U.S. amateur regulation restructuring
that has already removed the morse code test?!? [other than a
specific, individual medical waiver of it, possible years ago]


Barry would appear to be from Australia, Len. I'm not up on the
Australian amateur rules, but I guess they are different than the US
with regard to HF access.

My commercial license let me transmit RF on a far wider range
of the EM spectrum than just the amateur bands, certainly those
few spectrum slices allocated on a primary basis to just amateurs.

Didn't even need any "license" to transmit on HF, on VHF, on UHF
and on microwaves 51+ years ago when in military service.

An amateur radio operator license is NOT a noble title indicating
a licensee is "superior" to all other human beings...except in the
personal imaginings of a few who are lost in a fantasyland.


Sure isn't! Some are just born that way - then they get a ham license! 8^)

- Mike KB3EIA -


Mike Coslo December 30th 04 02:44 PM

JAMES HAMPTON wrote:

Hello, Phil and Barry

As a kind hearted soul who is willing to assist some folks having
communications difficulties, I have asked a friend of mine in the U.K. for
some assistance.

Here is his reply:
********* start of copied message**********
Hi James and All,

I will willingly help you with your project Jim, just send me what you
want to say in your words and I will convert it to an English style of
your choosing.

I can do you, the Queens English, London Cockney, London North, London
South, not that I have ever been south of the river, Middle England,
West Country or Welsh (real Welsh mind, not Canadian Welsh), LOL.
********* end copy*********


So, if Barry would be so kind to inform us as to what kind of colour should
be applied to our conversation, I shall ask my friend, Bernie, in the U.K.
to translate for us.


Too bad he doesn't do Scottish.

- Mike KB3EIA -


JAMES HAMPTON December 31st 04 03:27 AM


"Len Over 21" wrote in message
...
In article , Barry OGrady
writes:

On 29 Dec 2004 05:00:06 GMT, (Len Over 21) wrote:

In article ws.com,

"Phil
Kane" writes:

On Tue, 28 Dec 2004 18:04:32 -0500, Mike Coslo wrote:

The FCC is now allowing unlicensed operation in several bands: 6 GHz,

17
GHz and 24 GHz bands, are you concerned about the impact it will have

on
Hams?

How many people here even use the GHz bands?

Are there enough Hams to even justify further use?

They used to say the same thing about the bands above 2 meters.

We lost 220-222 MHz. That isn't important unless all the 2m and 3/4m
frequency pairs are used up.

The two-twenty loss (part of the old band there) was "lost" to hams
some time ago. The Condor Net has been living and doing fine in
what is left above it. BIG network, multiple states involved, all

tone
signalling to link along the net, designed that way before micro-
processors became commonplace.

Don't worry, anyone. Morsemanship is still necessary to get on HF
as an amateur.


No its not. My amateur license lets me use all amateur bands with no
knowledge of morse.


So...is there some secret U.S. amateur regulation restructuring
that has already removed the morse code test?!? [other than a
specific, individual medical waiver of it, possible years ago]

My commercial license let me transmit RF on a far wider range
of the EM spectrum than just the amateur bands, certainly those
few spectrum slices allocated on a primary basis to just amateurs.

Didn't even need any "license" to transmit on HF, on VHF, on UHF
and on microwaves 51+ years ago when in military service.

An amateur radio operator license is NOT a noble title indicating
a licensee is "superior" to all other human beings...except in the
personal imaginings of a few who are lost in a fantasyland.





Hello, Len

That commercial license wasn't a particularly big deal, except that you were
expected to memorize the "band plan", as it were, for VHF television. I had
to laugh, no problem with the video or audio carrier nor the allotted 6 MHz
per channel space. First question, I think, was "what is the frequency of
the video carrier of channel 6 television in the United States?". Well, I
guessed they couldn't all be that bad, so I flipped a couple of pages, put
my finger down, and examined the question by my finger. "What is the color
burst frequency?". Ah, simple. 3.58 MHz .... oops, all of the 4 answers
started with 3.579 .....

So, I had to take it a second time and this time I simply memorized the
splits and took a good hard look at how tightly various frequencies were
specified. Then it was easy.

The second class ticket was a joke. 45 ohms resistance with 45 ohms
inductive reactance. What is the phase angle?
a) voltage leads current by 90 degrees
b) current leads voltage by 90 degrees
c) voltage leads current by 45 degrees
d) current leads voltage by 45 degrees

Not exactly IEEE stuff.

The commercial telegraph license and radar endorsement were also not very
difficult. Such brain-strainers as "why do you avoid long horizontal
sections of waveguide".

A commercial license is not a noble title indicating a licensee is
"superior" to all other human beings (amateurs included) LOL


Best regards from Rochester, NY
Jim AA2QA



Lenof21 December 31st 04 06:31 AM

In article , "JAMES HAMPTON"
writes:

"Len Over 21" wrote in message
...
In article , Barry OGrady
writes:

On 29 Dec 2004 05:00:06 GMT, (Len Over 21) wrote:

In article ws.com,

"Phil
Kane" writes:

On Tue, 28 Dec 2004 18:04:32 -0500, Mike Coslo wrote:

The FCC is now allowing unlicensed operation in several bands: 6 GHz,

17
GHz and 24 GHz bands, are you concerned about the impact it will have

on
Hams?

How many people here even use the GHz bands?

Are there enough Hams to even justify further use?

They used to say the same thing about the bands above 2 meters.

We lost 220-222 MHz. That isn't important unless all the 2m and 3/4m
frequency pairs are used up.

The two-twenty loss (part of the old band there) was "lost" to hams
some time ago. The Condor Net has been living and doing fine in
what is left above it. BIG network, multiple states involved, all

tone
signalling to link along the net, designed that way before micro-
processors became commonplace.

Don't worry, anyone. Morsemanship is still necessary to get on HF
as an amateur.

No its not. My amateur license lets me use all amateur bands with no
knowledge of morse.


So...is there some secret U.S. amateur regulation restructuring
that has already removed the morse code test?!? [other than a
specific, individual medical waiver of it, possible years ago]

My commercial license let me transmit RF on a far wider range
of the EM spectrum than just the amateur bands, certainly those
few spectrum slices allocated on a primary basis to just amateurs.

Didn't even need any "license" to transmit on HF, on VHF, on UHF
and on microwaves 51+ years ago when in military service.

An amateur radio operator license is NOT a noble title indicating
a licensee is "superior" to all other human beings...except in the
personal imaginings of a few who are lost in a fantasyland.





Hello, Len

That commercial license wasn't a particularly big deal, except that you were
expected to memorize the "band plan", as it were, for VHF television. I had
to laugh, no problem with the video or audio carrier nor the allotted 6 MHz
per channel space. First question, I think, was "what is the frequency of
the video carrier of channel 6 television in the United States?". Well, I
guessed they couldn't all be that bad, so I flipped a couple of pages, put
my finger down, and examined the question by my finger. "What is the color
burst frequency?". Ah, simple. 3.58 MHz .... oops, all of the 4 answers
started with 3.579 .....


NTSC color subcarrier is exactly 3.579545454545454545454545....
MHz. :-)

Frankly speaking, I don't give a damn about that FCC field office test
I took in Chicago in March, 1956. It DID allow me to work at some
broadcast stations and earn a bit of money. I don't remember that
four-part test for a 1st 'Phone as being exclusively about broadcasting.
Maybe it changed later. Irrelevant.

A whole lot of changes have taken place in radio and electronics in
the last almost 49 years.

So, I had to take it a second time and this time I simply memorized the
splits and took a good hard look at how tightly various frequencies were
specified. Then it was easy.


I took mine just once. Everything. My "Q&A" book was a borrowed
Regulations set then printed up in loose-leaf form. All I did was
memorize what seemed to be important regulations. The theory I'd
already learned from the military experience, high-power HF trans-
mitters plus VHF, UHF, microwave radio relay. No real problem.

Not exactly IEEE stuff.


It was never intended to be such...any more than the amateur
written test is some kind of academic accomplishment.

The commercial telegraph license and radar endorsement were also not very
difficult. Such brain-strainers as "why do you avoid long horizontal
sections of waveguide".


Why would you? :-)

A commercial license is not a noble title indicating a licensee is
"superior" to all other human beings (amateurs included) LOL


I've never stated that nor implied it was. However, a lot of hams
go on and on, terribly full of themselves, on implying that Their
accomplishment is academic PhD level stuff. :-) [ ptui...]

Since 1958 I've been working in the microwaves, topping out at
the top of Ka Band (25 GHz) with only a brief time with some
2mm wavelength stuff where the waveguide had to be coin silver
electro-deposited on a polished copper mandrel (due to RF
surface conduction being too high a resistance with ordinary
silver plated guide...too much loss). I think of that lil-bitty guide
stuff as my "first SMT" exposure... :-)

A couple good reasons why amateur operations aren't widespread
at microwaves, particularly above X Band (greater than 12 GHz)
are Co$t of guide, flanges, measuring equipment, and RF sources;
there's no "magical" round-the-world bounce off the ionosphere as
with HF; so few amateurs know what they're doing at those very
short wavelengths (nearly all the present-day record setters have
commercial/military microwave experience).

One big plus at microwaves is that antenna gain can be terrific
due to beam-forming. Very little power is needed. Sure, there's
no "skip" at those frequencies, it's all line-of-sight, but eventually
there's going to be humans out there, far away. HF techniques
won't be good for interplanetary QSOs. :-)



JAMES HAMPTON December 31st 04 08:43 PM


"Lenof21" wrote in message
...
In article , "JAMES HAMPTON"
writes:

"Len Over 21" wrote in message
...
In article , Barry OGrady
writes:

On 29 Dec 2004 05:00:06 GMT, (Len Over 21) wrote:

In article ws.com,

"Phil
Kane" writes:

On Tue, 28 Dec 2004 18:04:32 -0500, Mike Coslo wrote:

The FCC is now allowing unlicensed operation in several bands: 6

GHz,
17
GHz and 24 GHz bands, are you concerned about the impact it will

have
on
Hams?

How many people here even use the GHz bands?

Are there enough Hams to even justify further use?

They used to say the same thing about the bands above 2 meters.

We lost 220-222 MHz. That isn't important unless all the 2m and

3/4m
frequency pairs are used up.

The two-twenty loss (part of the old band there) was "lost" to

hams
some time ago. The Condor Net has been living and doing fine in
what is left above it. BIG network, multiple states involved, all

tone
signalling to link along the net, designed that way before micro-
processors became commonplace.

Don't worry, anyone. Morsemanship is still necessary to get on HF
as an amateur.

No its not. My amateur license lets me use all amateur bands with no
knowledge of morse.

So...is there some secret U.S. amateur regulation restructuring
that has already removed the morse code test?!? [other than a
specific, individual medical waiver of it, possible years ago]

My commercial license let me transmit RF on a far wider range
of the EM spectrum than just the amateur bands, certainly those
few spectrum slices allocated on a primary basis to just amateurs.

Didn't even need any "license" to transmit on HF, on VHF, on UHF
and on microwaves 51+ years ago when in military service.

An amateur radio operator license is NOT a noble title indicating
a licensee is "superior" to all other human beings...except in the
personal imaginings of a few who are lost in a fantasyland.





Hello, Len

That commercial license wasn't a particularly big deal, except that you

were
expected to memorize the "band plan", as it were, for VHF television. I

had
to laugh, no problem with the video or audio carrier nor the allotted 6

MHz
per channel space. First question, I think, was "what is the frequency

of
the video carrier of channel 6 television in the United States?". Well,

I
guessed they couldn't all be that bad, so I flipped a couple of pages,

put
my finger down, and examined the question by my finger. "What is the

color
burst frequency?". Ah, simple. 3.58 MHz .... oops, all of the 4 answers
started with 3.579 .....


NTSC color subcarrier is exactly 3.579545454545454545454545....
MHz. :-)

Frankly speaking, I don't give a damn about that FCC field office test
I took in Chicago in March, 1956. It DID allow me to work at some
broadcast stations and earn a bit of money. I don't remember that
four-part test for a 1st 'Phone as being exclusively about

broadcasting.
Maybe it changed later. Irrelevant.

A whole lot of changes have taken place in radio and electronics in
the last almost 49 years.

So, I had to take it a second time and this time I simply memorized the
splits and took a good hard look at how tightly various frequencies were
specified. Then it was easy.


I took mine just once. Everything. My "Q&A" book was a borrowed
Regulations set then printed up in loose-leaf form. All I did was
memorize what seemed to be important regulations. The theory I'd
already learned from the military experience, high-power HF trans-
mitters plus VHF, UHF, microwave radio relay. No real problem.

Not exactly IEEE stuff.


It was never intended to be such...any more than the amateur
written test is some kind of academic accomplishment.

The commercial telegraph license and radar endorsement were also not very
difficult. Such brain-strainers as "why do you avoid long horizontal
sections of waveguide".


Why would you? :-)

A commercial license is not a noble title indicating a licensee is
"superior" to all other human beings (amateurs included) LOL


I've never stated that nor implied it was. However, a lot of hams
go on and on, terribly full of themselves, on implying that Their
accomplishment is academic PhD level stuff. :-) [ ptui...]

Since 1958 I've been working in the microwaves, topping out at
the top of Ka Band (25 GHz) with only a brief time with some
2mm wavelength stuff where the waveguide had to be coin silver
electro-deposited on a polished copper mandrel (due to RF
surface conduction being too high a resistance with ordinary
silver plated guide...too much loss). I think of that lil-bitty guide
stuff as my "first SMT" exposure... :-)

A couple good reasons why amateur operations aren't widespread
at microwaves, particularly above X Band (greater than 12 GHz)
are Co$t of guide, flanges, measuring equipment, and RF sources;
there's no "magical" round-the-world bounce off the ionosphere as
with HF; so few amateurs know what they're doing at those very
short wavelengths (nearly all the present-day record setters have
commercial/military microwave experience).

One big plus at microwaves is that antenna gain can be terrific
due to beam-forming. Very little power is needed. Sure, there's
no "skip" at those frequencies, it's all line-of-sight, but eventually
there's going to be humans out there, far away. HF techniques
won't be good for interplanetary QSOs. :-)




Hello, Len

Well, I never did have any Q&A manuals. I also never studied for any of the
exams I took, including Novice, General, Amateur Extra, 2nd phone, and 2nd
telegraph. I was simply up on the material (other than the band plans,
which I learned through exposure as a Novice. Didn't help a bit when I
retested in 93; I was quite wrong on at least where 40 meters was). The
only study I did do was when I did fail the 1st phone and realized that I
needed to know *exactly* what the numbers were to be. I must admit that the
CW was a bit shaky in 1993 when I simply retested for everything through
extra, however; I hadn't copied CW since 1969 (excluding the fact that I
couldn't help myself when the Moose Cud was sent during the movie "Fantastic
Voyage" back when ;)

I didn't mean to imply a slam against the commercial license; I did serve in
4 AM radio stations, 2 FM stations, and 2 television stations. Two stints
as a disk jockey, all as an "engineer" (LOL), and one as chief engineer
(5,000 watt am/fm station). Never forget the first job when I tore off the
teletype from the A-P. Went to do the news (running late; didn't read
everything. Crossed out some I wouldn't use) and the stupid thing took a
hit and went into figures for about two sentences. Fortunately, serving for
4 years as a radioman in the Navy (much of it with teletype) allowed me to
simply read it. Impressed the heck out of the guy breaking me in. Of
course, I had to go clean my drawers out in the W.C. right after that :))


73 from Rochester, NY
Jim AA2QA




Tony VE6MVP January 1st 05 07:14 PM

On 31 Dec 2004 06:31:51 GMT, (Lenof21) wrote:

However, a lot of hams
go on and on, terribly full of themselves, on implying that Their
accomplishment is academic PhD level stuff. :-) [ ptui...]


Ah, but to them it is an academic, PhD level stuff. smile

Tony

JAMES HAMPTON January 2nd 05 01:33 AM


"Lenof21" wrote in message
...
In article , "JAMES HAMPTON"
writes:


Hello, Len

That commercial license wasn't a particularly big deal, except that you

were
expected to memorize the "band plan", as it were, for VHF television. I

had
to laugh, no problem with the video or audio carrier nor the allotted 6

MHz
per channel space. First question, I think, was "what is the frequency

of
the video carrier of channel 6 television in the United States?". Well,

I
guessed they couldn't all be that bad, so I flipped a couple of pages,

put
my finger down, and examined the question by my finger. "What is the

color
burst frequency?". Ah, simple. 3.58 MHz .... oops, all of the 4 answers
started with 3.579 .....


NTSC color subcarrier is exactly 3.579545454545454545454545....
MHz. :-)

Frankly speaking, I don't give a damn about that FCC field office test
I took in Chicago in March, 1956. It DID allow me to work at some
broadcast stations and earn a bit of money. I don't remember that
four-part test for a 1st 'Phone as being exclusively about

broadcasting.
Maybe it changed later. Irrelevant.

A whole lot of changes have taken place in radio and electronics in
the last almost 49 years.

So, I had to take it a second time and this time I simply memorized the
splits and took a good hard look at how tightly various frequencies were
specified. Then it was easy.


I took mine just once. Everything. My "Q&A" book was a borrowed
Regulations set then printed up in loose-leaf form. All I did was
memorize what seemed to be important regulations. The theory I'd
already learned from the military experience, high-power HF trans-
mitters plus VHF, UHF, microwave radio relay. No real problem.

Not exactly IEEE stuff.


It was never intended to be such...any more than the amateur
written test is some kind of academic accomplishment.

The commercial telegraph license and radar endorsement were also not very
difficult. Such brain-strainers as "why do you avoid long horizontal
sections of waveguide".


Why would you? :-)

A commercial license is not a noble title indicating a licensee is
"superior" to all other human beings (amateurs included) LOL


I've never stated that nor implied it was. However, a lot of hams
go on and on, terribly full of themselves, on implying that Their
accomplishment is academic PhD level stuff. :-) [ ptui...]

Since 1958 I've been working in the microwaves, topping out at
the top of Ka Band (25 GHz) with only a brief time with some
2mm wavelength stuff where the waveguide had to be coin silver
electro-deposited on a polished copper mandrel (due to RF
surface conduction being too high a resistance with ordinary
silver plated guide...too much loss). I think of that lil-bitty guide
stuff as my "first SMT" exposure... :-)

A couple good reasons why amateur operations aren't widespread
at microwaves, particularly above X Band (greater than 12 GHz)
are Co$t of guide, flanges, measuring equipment, and RF sources;
there's no "magical" round-the-world bounce off the ionosphere as
with HF; so few amateurs know what they're doing at those very
short wavelengths (nearly all the present-day record setters have
commercial/military microwave experience).

One big plus at microwaves is that antenna gain can be terrific
due to beam-forming. Very little power is needed. Sure, there's
no "skip" at those frequencies, it's all line-of-sight, but eventually
there's going to be humans out there, far away. HF techniques
won't be good for interplanetary QSOs. :-)



Hello, Len

I don't know how many amateurs are going to even get much above 1 GHz. As
you point out, high power is not necessary due to high gain antennas being
easy to make (or, perhaps, purchase). The problem might be in the aiming.

I got a bit lucky when I put in my Direct Tv system some years ago. Running
the coax and feeding into the house was easy; the antenna pointing became a
bit more problematic, both due to a bad compass and a poor choice of help.

I invited a couple of friends over. Since they weren't hams and I didn't
have (as I now do) a cordless phone with both a base and remote (that is
*great* for work on the antenna), nor did we have cell phones, I needed one
guy to watch the set and report signal strength and holler to the second guy
in the kitchen who would holler to me on the roof. I checked the mount to
set up and verify the supporting rod was indeed vertical, set the elevation,
and, using a compass, set the direction of the antenna. They reported
nothing. I went to check the compass again as the elevation was easy to
set. I noticed that the needle was *not* pointing where it should be. I
know that from my porch, the North star sits exactly in line with the back
of my neighbor's house and I was in the proper position, albeit higher, and
North should be exactly in line with the end of my neighbor's house. The
needle should have pointed a bit East of that, but was pointing considerably
towards the East. Sigh. I came back down and got the manual as it shows
the deviation from true North. I went back on the roof, pointed the N on
the compass exactly towards the neighbor's house, and carefully looked
across the compass to see where the antenna should point (with the proper
true headings from the installation manual). I made the adjustment to the
antenna and yelled down. I tried for a couple of minutes and got no
response from below.

Irritated, I packed up the tools and went back down - and found everyone
drinking my beer!!!! Sigh ... ok, I went in to the television to turn it
off - and there was a signal indication of 85! I pulled out the credit card
and called Direct Tv. Bam! On came the whole 9 yards. Further testing the
following day revealed that I could not get a better signal. Lucky indeed.
BTW, by the next day, I had run coax both upstairs to the bedroom and also
into the kitchen, so I only needed one helper. He could watch the signal
strength in the kitchen and yell directly out the window to me. I chose my
helper a bit more judiciously ;)

What does that have to do with 10 GHz transmission? Even purchasing
equipment, someone is going to have to be able to aim the darn thing (gain
comes at the expense of beamwidth, naturally) - and have some idea of local
topography if they wish to take advantage of either natural or man-made
objects. Of course, if the object is moonbounce, taking a dish which will
develop the proper gain (and I'm guessing here - likely approaching 30 dBi),
that thing is going to have to be fairly accurately pointed.

My Morse key has two settings: up and down. I can handle that, but some
folks might not be able to handle something a bit more complex than that
(although many can).

Interplanetary QSOs might prove *very* interesting. You certainly can't
call CQ. You'd have to set up pre-arranged transmit times. Both could
transmit information at a given time and the both wait .... and wait ... and
wait whilst the electromagnetic radiation made its' way at the speed of
light for a number of minutes (or hours, depending upon how close the
planet - likely mars - was at the time). Obviously, mars is quite close to
us only at certain times and even then is what - 35 million miles away?
Don't forget to adjust for Doppler shift as the planets are moving closer or
farther away. Narrow bandwidths can give you better signal to noise ratio,
but narrow bandwidths can also make that Doppler shift a lot more difficult
to deal with. I doubt wideband FM would cut the mustard due to a *huge*
increase in noise with the much larger bandwidth over narrow bandwidth
modes.

I don't think I'm likely to be around by the time ordinary folks can take a
trip to mars .... ;)

Dang, where'd I put my Morse key?
:))


73 from Rochester, NY
Jim AA2QA



Mike Coslo January 2nd 05 04:21 AM

JAMES HAMPTON wrote:
"Lenof21" wrote in message
...

In article , "JAMES HAMPTON"
writes:



Hello, Len

That commercial license wasn't a particularly big deal, except that you


were

expected to memorize the "band plan", as it were, for VHF television. I


had

to laugh, no problem with the video or audio carrier nor the allotted 6


MHz

per channel space. First question, I think, was "what is the frequency


of

the video carrier of channel 6 television in the United States?". Well,


I

guessed they couldn't all be that bad, so I flipped a couple of pages,


put

my finger down, and examined the question by my finger. "What is the


color

burst frequency?". Ah, simple. 3.58 MHz .... oops, all of the 4 answers
started with 3.579 .....


NTSC color subcarrier is exactly 3.579545454545454545454545....
MHz. :-)

Frankly speaking, I don't give a damn about that FCC field office test
I took in Chicago in March, 1956. It DID allow me to work at some
broadcast stations and earn a bit of money. I don't remember that
four-part test for a 1st 'Phone as being exclusively about


broadcasting.

Maybe it changed later. Irrelevant.

A whole lot of changes have taken place in radio and electronics in
the last almost 49 years.


So, I had to take it a second time and this time I simply memorized the
splits and took a good hard look at how tightly various frequencies were
specified. Then it was easy.


I took mine just once. Everything. My "Q&A" book was a borrowed
Regulations set then printed up in loose-leaf form. All I did was
memorize what seemed to be important regulations. The theory I'd
already learned from the military experience, high-power HF trans-
mitters plus VHF, UHF, microwave radio relay. No real problem.


Not exactly IEEE stuff.


It was never intended to be such...any more than the amateur
written test is some kind of academic accomplishment.


The commercial telegraph license and radar endorsement were also not very
difficult. Such brain-strainers as "why do you avoid long horizontal
sections of waveguide".


Why would you? :-)


A commercial license is not a noble title indicating a licensee is
"superior" to all other human beings (amateurs included) LOL


I've never stated that nor implied it was. However, a lot of hams
go on and on, terribly full of themselves, on implying that Their
accomplishment is academic PhD level stuff. :-) [ ptui...]

Since 1958 I've been working in the microwaves, topping out at
the top of Ka Band (25 GHz) with only a brief time with some
2mm wavelength stuff where the waveguide had to be coin silver
electro-deposited on a polished copper mandrel (due to RF
surface conduction being too high a resistance with ordinary
silver plated guide...too much loss). I think of that lil-bitty guide
stuff as my "first SMT" exposure... :-)

A couple good reasons why amateur operations aren't widespread
at microwaves, particularly above X Band (greater than 12 GHz)
are Co$t of guide, flanges, measuring equipment, and RF sources;
there's no "magical" round-the-world bounce off the ionosphere as
with HF; so few amateurs know what they're doing at those very
short wavelengths (nearly all the present-day record setters have
commercial/military microwave experience).

One big plus at microwaves is that antenna gain can be terrific
due to beam-forming. Very little power is needed. Sure, there's
no "skip" at those frequencies, it's all line-of-sight, but eventually
there's going to be humans out there, far away. HF techniques
won't be good for interplanetary QSOs. :-)




Hello, Len

I don't know how many amateurs are going to even get much above 1 GHz. As
you point out, high power is not necessary due to high gain antennas being
easy to make (or, perhaps, purchase). The problem might be in the aiming.


That is a big part of it. Even if a lot of hams were there, it would be
pretty much a sked only comms.

This leads to prospective users having a need to work in pairs or
teams. It will not be about making QSO's with multiple people, you will
be wanting to put your equipment together, and try it out. So right
away, the users will need to be interested in mainly putting a station
together and using it a few times, then moving along to the next goal.

And of course, the major attraction of these GHz and up frequencies is
that they DON'T go very far. You have to be the type of user that
doesn't care to make long distance QSO's!

Despite the ARRL's promotion and record keeping, for AIAP's these
frequencies are *very* local.



- Mike KB3EIA -


Len Over 21 January 11th 05 05:34 AM

In article , Tony VE6MVP
writes:

On 31 Dec 2004 06:31:51 GMT, (Lenof21) wrote:

However, a lot of hams
go on and on, terribly full of themselves, on implying that Their
accomplishment is academic PhD level stuff. :-) [ ptui...]


Ah, but to them it is an academic, PhD level stuff. smile


...and so is an Ohm's Law of Resistance formula with one
unknown. Some need Java calculator programs on their
PCs in order to solve such difficult "rocket science." Sheesh.



Len Over 21 January 11th 05 07:01 PM

In article , Tony VE6MVP
writes:

On 31 Dec 2004 06:31:51 GMT, (Lenof21) wrote:

However, a lot of hams
go on and on, terribly full of themselves, on implying that Their
accomplishment is academic PhD level stuff. :-) [ ptui...]


Ah, but to them it is an academic, PhD level stuff. smile


...and so is an Ohm's Law of Resistance formula with one
unknown. Some need Java calculator programs on their
PCs in order to solve such difficult "rocket science." Sheesh.



Mel A. Nomah January 11th 05 08:37 PM


"Len Over 21" wrote in message
...



: ...and so is an Ohm's Law of Resistance formula with one
: unknown. Some need Java calculator programs on their
: PCs in order to solve such difficult "rocket science." Sheesh.

Is there an echo in here?
........Is there an echo in here?

LenOver,

Your crapola is hard enuf to read once, let alone 2-3 times. Take a course
in computer basics.

M.A.N.
--
"I have never made but one prayer to God, a very short one: "O Lord,
make my enemies ridiculous." And God granted it."
- Voltaire






Lenof21 January 12th 05 01:27 AM

In article et, "Mel A.
Nomah" writes:

Your crapola is hard enuf to read once, let alone 2-3 times. Take a course
in computer basics.


It's the fault of that wonderful ISP called AOL and their very latest
softwares...at THEIR end, not here. AOL has been advised. Again.

BTW, I've done commercial and amateur computer programming in
addition to electronic design engineering and was a member of the
ACM in the past, though always with the IEEE since '73.

You are welcome to file TOS charges against me with AOL any
time you wish. TOS = Terms Of Service. Tell them that the
cancer man doesn't like me. Let us see if cancer can spread.

Meanwhile on your "computer suggestion," go shove it up your
I/O port.

With fondest regards,



Steve Robeson K4YZ January 12th 05 01:30 PM

Subject: 24 GHz woes?
From: (Lenof21)
Date: 1/11/2005 7:27 PM Central Standard Time
Message-id:

In article et, "Mel A.
Nomah" writes:

Your crapola is hard enuf to read once, let alone 2-3 times. Take a course
in computer basics.


It's the fault of that wonderful ISP called AOL and their very latest
softwares...at THEIR end, not here. AOL has been advised. Again.


It has absolutely nothing to do with AOL.

It has to do with your reams-long rants and self-promoting diatribes.

BTW, I've done commercial and amateur computer programming in
addition to electronic design engineering and was a member of the
ACM in the past, though always with the IEEE since '73.


I am sure the Church of IEEE aprpeciated it.

You are welcome to file TOS charges against me with AOL any
time you wish. TOS = Terms Of Service. Tell them that the
cancer man doesn't like me. Let us see if cancer can spread.


In your case, we could only hope.

Meanwhile on your "computer suggestion," go shove it up your
I/O port.


More professional expression, followed by...

With fondest regards


A blatant lie and a rip-off of Hans.

Steve, K4YZ








Len Over 21 January 12th 05 08:44 PM

In article , "JAMES HAMPTON"
writes:

"Lenof21" wrote in message
...


NTSC color subcarrier is exactly 3.579545454545454545454545....
MHz. :-)


With the correct integer divisor and correct integer multiplier, it
comes out to 500 KHz fairly exact. Most TV stations of the old
days had color subcarrier generators that were beat against
WWV on HF. It was picked for that very reason. Smart pickers
even back then.


Irritated, I packed up the tools and went back down - and found everyone
drinking my beer!!!! Sigh ... ok, I went in to the television to turn it
off - and there was a signal indication of 85! I pulled out the credit card
and called Direct Tv. Bam! On came the whole 9 yards. Further testing the
following day revealed that I could not get a better signal. Lucky indeed.
BTW, by the next day, I had run coax both upstairs to the bedroom and also
into the kitchen, so I only needed one helper. He could watch the signal
strength in the kitchen and yell directly out the window to me. I chose my
helper a bit more judiciously ;)


Heh. You are probably too young to get involved in a post-war
event called the "beer can vertical." Back when cans were made
of solderable materials, some WW2-age guys had beer parties
to get the cans, solder them together to make a thick vertical
radiator. By the end of one such "vertical," the soldering started
to get rather out of line.

I was a young teener at that time and never did like beer. Still
don't. Don't mix beer and ham construction projects, especially
with a group that doesn't know what they are doing. Never heard
of a "beer can vertical" that stayed up. :-)

What does that have to do with 10 GHz transmission? Even purchasing
equipment, someone is going to have to be able to aim the darn thing (gain
comes at the expense of beamwidth, naturally) - and have some idea of local
topography if they wish to take advantage of either natural or man-made
objects. Of course, if the object is moonbounce, taking a dish which will
develop the proper gain (and I'm guessing here - likely approaching 30 dBi),
that thing is going to have to be fairly accurately pointed.


At S-Band (2 to 4 GHz), engineer-author-ham George O. Smith
calculated that a KiloWatt into a 30 db gain dish at S-Band could
honk into Mars with the receiver using another 30 db gain dish
and running wide-spread (850 Hz) FSK RTTY. Over all distances
in planetary orbits and within seeing distance (planetary occlusion
would be obviously prohibitive). Smith was at Harry Diamond Labs
during WW2 designing/debugging proximity fuses as well as the
long-running series of "Venus Equilateral" stories involving a radio
relay asteroid between Earth and Venus and Mars. In the 1940s,
of course...we've learned that the other planets aren't hospitable.

My Morse key has two settings: up and down. I can handle that, but some
folks might not be able to handle something a bit more complex than that
(although many can).


I've met some hams who can't work a single-unknown variable
algebra problem yet proclaim themselves to be "designers."
They might need a four-week course class to learn to set a
VCR or DVD recorder. :-)

Interplanetary QSOs might prove *very* interesting. You certainly can't
call CQ. You'd have to set up pre-arranged transmit times. Both could
transmit information at a given time and the both wait .... and wait ... and
wait whilst the electromagnetic radiation made its' way at the speed of
light for a number of minutes (or hours, depending upon how close the
planet - likely mars - was at the time). Obviously, mars is quite close to
us only at certain times and even then is what - 35 million miles away?
Don't forget to adjust for Doppler shift as the planets are moving closer or
farther away. Narrow bandwidths can give you better signal to noise ratio,
but narrow bandwidths can also make that Doppler shift a lot more difficult
to deal with. I doubt wideband FM would cut the mustard due to a *huge*
increase in noise with the much larger bandwidth over narrow bandwidth
modes.


The Deep Space Network out of JPL done solved a lot of those
problems long ago. Using lower powers than seemed practical
with bandwidths that seemed impractical in the 50s.

All the numbers are available: Path loss, antenna gain, bandwidth,
just plug them into an equation or nomograph (or search for a
"program" also called a Java aplet somebody tossed together).

The major problem is TIME DELAY and trying to adjust traditional
methods to meet future needs. There's a discernable audio pause
when talking to someone via a comm sat sitting in geosynchronous
orbit and it isn't even at a tenth the distance to the moon. It's 2 1/2
seconds (give or take) doing a Lunar "QSO." Obviously the old
tradition has to be tossed for interplanetary stuff and so the avowed
ham morsemen will have their keys pried out of cold, dead
terrestrial fingers.

Besides, just who is going to deliver the QSLs saying "UR SIG
599!" ? :-)

I don't think I'm likely to be around by the time ordinary folks can take a
trip to mars .... ;)


I'm optimistic. :-) Having worked IN the field of electronics and
communications for a mere half century, the changes to all kinds
of comms have been so vast as to be overpowering the imagination
of even science-fiction writers (George O. Smith didn't think servos
could keep tracking the planets, used humans to do it in his 1940s
stories).

Back in 1954, 1.8 GHz communications equipment was considered
very high-tech. Special vacuum tubes, coaxial resonators, wave-
guide based bandpass filters. Big, expensive, fussy to tune. 50
years later we have consumer electronics cordless phones operating
at 2 GHz and the 5.8 GHz units' cost hovering close to $75 over-the-
counter, plug-and-play. One in three Americans has a cellular
telephone subscription now and those operate around 1 GHz and
some cell phones have digital cameras built in.

Look for VOIP to make inroads on the traditional wired telephone
service making hash out of the old, reliable, trustworthy "long-distance"
calls for ordinary citizens. All them old 'phone gabbers will have a ball
denouncing that damn upstart Voice Over Internet Protocal and
hollering "you can't send telephone calls over the Internet!" :-)

Dang, where'd I put my Morse key?
:))


Yup. Don't be late for the ham party where everyone recreates the
grand old "pioneer" days of the 1920s and 1930s with the morse-
Vail "code." Not for me. I love the future just around the corner
just like I've enjoyed all the new developments over the last half
century.

Remember what Brian Burke said: "Morse code gets through
when everything else does..."



Len Over 21 January 14th 05 01:51 AM

In article .com, "bb"
writes:

wrote:
http://www.eagle.ca/~harry/ba/eme/

http://www.eham.net/articles/9988
Many of those involved in the project were hams.

73 de Jim, N2EY


Ahh, yes. Hams doing non-ham stuff.
I wonder if they calculated the distance to the moon correctly?


Well, Brian, Jimmie done took the post bus out of Monmouth
often enough, could see the big bedspring radar antennas at
The Labs (there were 3 laboratory installations along the
highway). I'm sure he has contributed his Oral History
recording for the archives as have all the veterans of Project
Diana. [hand salute!]

Maybe he forgot to mention the First Ham in Space! According
to tonight's Jeopardy program clues, Ham the Chimp was the
first "American" in space. :-)

Oook, oook!



Dave Heil January 14th 05 03:28 AM

Len Over 21 wrote:

In article .com, "bb"
writes:

wrote:
http://www.eagle.ca/~harry/ba/eme/

http://www.eham.net/articles/9988
Many of those involved in the project were hams.

73 de Jim, N2EY


Ahh, yes. Hams doing non-ham stuff.
I wonder if they calculated the distance to the moon correctly?


Well, Brian, Jimmie done took the post bus out of Monmouth
often enough, could see the big bedspring radar antennas at
The Labs (there were 3 laboratory installations along the
highway). I'm sure he has contributed his Oral History
recording for the archives as have all the veterans of Project
Diana. [hand salute!]

Maybe he forgot to mention the First Ham in Space! According
to tonight's Jeopardy program clues, Ham the Chimp was the
first "American" in space. :-)


That reminds me--I wonder how Mike Coslo's gas bag launch project is
going. How high will "Leonard" go?

Dave K8MN

Jeffrey Herman January 14th 05 07:49 AM

Len Over 21 wrote:

...
NTSC color subcarrier is exactly 3.579545454545454545454545....
MHz. :-)


With the correct integer divisor and correct integer multiplier, it
comes out to 500 KHz fairly exact.


"Fairly exact"? What's that mean?

Any repeating decimal can be written as a rational number, a/b.
That particular decimal above is exactly 315/88: Set that decimal
equal to N. Since two digits repeat, multiply both sides of the
equation by 10^2; we now have: 100N = 357.9545454... Next, subtract
the first equation from this second one; all the repeating 54 pairs
cancel due to this subtraction, giving us 99N = 354.375, a
terminating decimal. To eliminate the decimal point, multiply
both sides by 1000: 99000N = 354375. Now divide both sides by
99000: N = 354375/99000. This fraction simplifies to N = 315/88.
Hence, that original repeating decimal, 3.579545454... is exactly
equal to 315/88.

Note that if you have a repeating decimal with 3 repeating digits,
you'd multiple both sides of the initial equation by 10^3, etc.

Jeff KH6O
--
Chief Petty Officer, U.S. Coast Guard
Mathematics Lecturer, University of Hawaii System

N2EY January 14th 05 11:30 AM

In article ,
(Lenof21) writes:

In article et, "Mel A.
Nomah" writes:

Your crapola is hard enuf to read once, let alone 2-3 times. Take a course
in computer basics.


It's the fault of that wonderful ISP called AOL and their very latest
softwares...at THEIR end, not here. AOL has been advised. Again.


"Softwares"? Is that like President Bush's "internets"?

BTW, I've done commercial and amateur computer programming in
addition to electronic design engineering and was a member of the
ACM in the past, though always with the IEEE since '73.


Yet you're using AOL through a dialup, just like me and many others. Except our
postings don't show up three times in the same day. Only yours.

You are welcome to file TOS charges against me with AOL any
time you wish. TOS = Terms Of Service.


TS, Eliot ;-) ;-)

Tell them that the
cancer man doesn't like me. Let us see if cancer can spread.

Meanwhile on your "computer suggestion," go shove it up your
I/O port.


IOW, you don't know what's wrong, huh Len?




Mike Coslo January 14th 05 01:41 PM

Dave Heil wrote:
Len Over 21 wrote:

In article .com, "bb"
writes:


wrote:

http://www.eagle.ca/~harry/ba/eme/

http://www.eham.net/articles/9988
Many of those involved in the project were hams.

73 de Jim, N2EY

Ahh, yes. Hams doing non-ham stuff.
I wonder if they calculated the distance to the moon correctly?


Well, Brian, Jimmie done took the post bus out of Monmouth
often enough, could see the big bedspring radar antennas at
The Labs (there were 3 laboratory installations along the
highway). I'm sure he has contributed his Oral History
recording for the archives as have all the veterans of Project
Diana. [hand salute!]

Maybe he forgot to mention the First Ham in Space! According
to tonight's Jeopardy program clues, Ham the Chimp was the
first "American" in space. :-)



That reminds me--I wonder how Mike Coslo's gas bag launch project is
going. How high will "Leonard" go?

Dave K8MN


It is going okay. I just stopped writing about it here since it was
"impossible to do" 8^)


- Mike KB3EIA -


Dave Heil January 15th 05 05:41 AM

Mike Coslo wrote:

Dave Heil wrote:
Len Over 21 wrote:

In article .com, "bb"
writes:


wrote:

http://www.eagle.ca/~harry/ba/eme/

http://www.eham.net/articles/9988
Many of those involved in the project were hams.

73 de Jim, N2EY

Ahh, yes. Hams doing non-ham stuff.
I wonder if they calculated the distance to the moon correctly?

Well, Brian, Jimmie done took the post bus out of Monmouth
often enough, could see the big bedspring radar antennas at
The Labs (there were 3 laboratory installations along the
highway). I'm sure he has contributed his Oral History
recording for the archives as have all the veterans of Project
Diana. [hand salute!]

Maybe he forgot to mention the First Ham in Space! According
to tonight's Jeopardy program clues, Ham the Chimp was the
first "American" in space. :-)



That reminds me--I wonder how Mike Coslo's gas bag launch project is
going. How high will "Leonard" go?

Dave K8MN


It is going okay. I just stopped writing about it here since it was
"impossible to do" 8^)


Don't let 'em grind you down, Mike.

If you don't stencil "LEONARD" on the first one, justice will not have
been done. A web site with corroborating photos will be a must.

Dave K8MN

Len Over 21 January 15th 05 06:11 AM

In article , (Jeffrey Herman)
writes:

Len Over 21 wrote:

...
NTSC color subcarrier is exactly 3.579545454545454545454545....
MHz. :-)


With the correct integer divisor and correct integer multiplier, it
comes out to 500 KHz fairly exact.


"Fairly exact"? What's that mean?


Heh heh heh...as "exact" as you can calibrate it to some
accepted standard of frequency.

Hint: It isn't W1AW. :-)


Any repeating decimal can be written as a rational number, a/b.
That particular decimal above is exactly 315/88: Set that decimal
equal to N. Since two digits repeat, multiply both sides of the
equation by 10^2; we now have: 100N = 357.9545454... Next, subtract
the first equation from this second one; all the repeating 54 pairs
cancel due to this subtraction, giving us 99N = 354.375, a
terminating decimal. To eliminate the decimal point, multiply
both sides by 1000: 99000N = 354375. Now divide both sides by
99000: N = 354375/99000. This fraction simplifies to N = 315/88.
Hence, that original repeating decimal, 3.579545454... is exactly
equal to 315/88.

Note that if you have a repeating decimal with 3 repeating digits,
you'd multiple both sides of the initial equation by 10^3, etc.


Suggestion: Why don't you expound over in the math newsgroup?

On the other hand, how would you get a "fairly exact" color burst
oscillator on-frequency and keep it that way?

You have to understand the ELECTRONICS part in order to do
that. That ties into "RADIO." Get the connection? It's peachy
keen to know all about continuing fractions and stuff but let's
look at the number "88." Factoring it out results in an 11.
If you are generating, say a color burst frequency, that 11
would be in the numerator, not the denominator. That implies
a MULTIPLIER of 11. [ever have to build a frequency
multiplier?] A multiplication of 11 is a bit hard to do even
though GE (among others) solved it with tubes back about a
half century or so in the past. [I can tell you how they did it
even if it isn't explained in the ARRL Handbook]

Hint: 56.818 181 818 ... KHz is involved. How?

The numbers only APPEAR to relate, but the numbers aren't
oscillating and generating RF. Try to stay focussed HERE.

So...how much RF have you done up at Ku-Band territory?



K4YZ January 15th 05 03:37 PM

Len Over 21 wrote:

Note that if you have a repeating decimal with 3 repeating digits,
you'd multiple both sides of the initial equation by 10^3, etc.


Suggestion: Why don't you expound over in the math newsgroup?


We can always tell when Lennie's feeling "cramped"...as in someone
else has the temerity to DEMONSTRATE the skills Lennie BRAGS about.
Sheeesh.

Steve, K4YZ


Dave Heil January 15th 05 04:58 PM

K4YZ wrote:

Len Over 21 wrote:

Note that if you have a repeating decimal with 3 repeating digits,
you'd multiple both sides of the initial equation by 10^3, etc.


Suggestion: Why don't you expound over in the math newsgroup?


We can always tell when Lennie's feeling "cramped"...as in someone
else has the temerity to DEMONSTRATE the skills Lennie BRAGS about.
Sheeesh.


You'll note that Len hasn't bothered to entertain folks in
rec.radio.former.professional or alt.war-stories.half-century.

He often tells others that they "aren't the moderator in here". It
doesn't stop him from attempting to be "the moderator in here". Fact
is, Len's a tired old piranha in his eighth decade. He has, depending
upon the season of the year, a decades-old interest in amateur radio or
no interest in obtaining an amateur radio license.

He chides others for "living in the past" but regales us with tales from
his military experiences of fifty plus years ago or from his working
days. Stories from others with equal or more experience are dismissed
and ridculed.

He writes of denigration and insult by others but he dishes out heaping
helpings of it toward others. A few things remain clear:

1. Len isn't part of amateur radio; he has no amateur radio license.

2. Len isn't likely to obtain an amateur radio license with or without
a morse code exam--ever.

3. Len has some sort of issue with those who have accomplishments in
amateur radio and who are proud of them. These people, he defines as
"overly proud".

4. Nobody can have more experience or knowledge than Len in radio,
electronics or the military.

5. Len is the only person on the planet who knows what "message
knuckles" are.


Dave K8MN


All times are GMT +1. The time now is 11:46 AM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
RadioBanter.com