Scott Dorsey wrote:
Not at all. It just mandates a certain power input to the finals.

At one time it DID mandate something like "local communications only".
I can't remember the exact wording, so I leave it in quotes.


Note that Class D wasn't all there was. There was Class C which allowed
pulse modulation in the 26 MHz range for remote control, and Class A
citizens band which was AM in the 450 MHz range. I don't recall what
Class B was.

I had a class C and D license. The difference was ticking a box on the
application.

Geoff.

--
Geoffrey S. Mendelson, Jerusalem, Israel N3OWJ/4X1GM
IL Voice: (07)-7424-1667 Fax ONLY: 972-2-648-1443 U.S. Voice: 1-215-821-1838
Visit my 'blog at http://geoffstechno.livejournal.com/

On Wed, 14 Mar 2007 13:54:04 +0000 (UTC), (Geoffrey
S. Mendelson) wrote:

Scott Dorsey wrote:
Not at all. It just mandates a certain power input to the finals.

At one time it DID mandate something like "local communications only".
I can't remember the exact wording, so I leave it in quotes.


Note that Class D wasn't all there was. There was Class C which allowed
pulse modulation in the 26 MHz range for remote control, and Class A
citizens band which was AM in the 450 MHz range. I don't recall what
Class B was.

I had a class C and D license. The difference was ticking a box on the
application.

Geoff.

Since I never operated CB except for one short contact in my carpool
mate's car to show him how it worked, I was not intimately familiar
with CB rules. I seem to remember thought that there were regulation
which prohibited even attempting to make a contact of over 200 miles
(or so) even if conditions permitted this. I seem to remember that
this was one of the ways to attempt to rein in the use of powerful
amplifiers that many CBers used (of course the prohibition of the sale
of amps capable of operation in that range, including those intended
for ham use, was another FCC mandate.)

Anyone know more about that??

I don't know the licensing requirements, but I think that there is
also a frequency or frequencies at 72 MHZ available for radio control
of models in addition to 26MHz; and, 50 MHz if one is a licensed
amateur.

Anyone up on that?

Jon W3JT

On Wed, 14 Mar 2007 12:26:01 -0400, Jon Teske
wrote:

Since I never operated CB except for one short contact in my carpool
mate's car to show him how it worked, I was not intimately familiar
with CB rules. I seem to remember thought that there were regulation
which prohibited even attempting to make a contact of over 200 miles
(or so) even if conditions permitted this. I seem to remember that
this was one of the ways to attempt to rein in the use of powerful
amplifiers that many CBers used (of course the prohibition of the sale
of amps capable of operation in that range, including those intended
for ham use, was another FCC mandate.)

Anyone know more about that?

FCC rules 95.412(9) prohibit communications or attempts at
communication with stations more than 250 km or 155.3 miles away.

Dick - W6CCD

I don't know the licensing requirements, but I think that there is
also a frequency or frequencies at 72 MHZ available for radio control
of models in addition to 26MHz; and, 50 MHz if one is a licensed
amateur.

Anyone up on that?

Jon W3JT



--
Posted via a free Usenet account from http://www.teranews.com

On Wed, 14 Mar 2007 10:21:29 -0700, Dick wrote:

FCC rules 95.412(9) prohibit communications or attempts at
communication with stations more than 250 km or 155.3 miles away.

Is that still in effect?

The rule died here in .ca with the license requirement. That was what,
around 20 years ago?

__
Gregg

On Thu, 15 Mar 2007 22:01:37 -0700, geek
wrote:

On Wed, 14 Mar 2007 10:21:29 -0700, Dick wrote:

FCC rules 95.412(9) prohibit communications or attempts at
communication with stations more than 250 km or 155.3 miles away.

Is that still in effect?

The rule died here in .ca with the license requirement. That was what,
around 20 years ago?

__
Gregg

That was taken from the latest Part 95 posted on the FCC website. So
yes, it is still in effect in the U.S.

Dick - W6CCD

--
Posted via a free Usenet account from http://www.teranews.com

The rule died here in .ca with the license requirement. That was what,
around 20 years ago?


Except for communicating with other stations on any
channel and having to use a call sign, most of the
original rules are still in effect, ie. no high power,
no talking over 150 miles, etc.

Now they say the blanket license covers all legally
operating stations.
If you're operating illegally then it's considered to be
operating without a license.
Fine, $10,000 per day, per offense.

Ron

In article ,
Jon Teske wrote:
On Wed, 14 Mar 2007 13:54:04 +0000 (UTC), (Geoffrey
S. Mendelson) wrote:

Scott Dorsey wrote:
Not at all. It just mandates a certain power input to the finals.

At one time it DID mandate something like "local communications only".
I can't remember the exact wording, so I leave it in quotes.


Note that Class D wasn't all there was. There was Class C which allowed
pulse modulation in the 26 MHz range for remote control, and Class A
citizens band which was AM in the 450 MHz range. I don't recall what
Class B was.

I had a class C and D license. The difference was ticking a box on the
application.

Geoff.

Since I never operated CB except for one short contact in my carpool
mate's car to show him how it worked, I was not intimately familiar
with CB rules. I seem to remember thought that there were regulation
which prohibited even attempting to make a contact of over 200 miles
this was one of the ways to attempt to rein in the use of powerful
(or so) even if conditions permitted this.

I can confirm the existance of 'distace' restriction. As I recall, it
is 150 mi., not 200.

I seem to remember that
amplifiers that many CBers used (of course the prohibition of the sale
of amps capable of operation in that range, including those intended
for ham use, was another FCC mandate.)

Anyone know more about that??

Note: the amps were illegal regardless, as there was a limit of watts of
power in to the final amp, and a maximum of 4 watts RF energy out.

It is worth noting that when 'skip' conditions were right, it did not
take large amounts of RF to reach long distaces. I used an '11 meter'
(but _not_ 'citizens band') rig with just under 2-1/8 watts (measured!)
RF out, and one day was asked to shut down, by a station nearly 900 miles
distant. I was _so_strong_ in their area that legal max (10 watt RF)
stations couldn't communicate at 6 blocks distance.

I don't know the licensing requirements, but I think that there is
also a frequency or frequencies at 72 MHZ available for radio control
of models in addition to 26MHz; and, 50 MHz if one is a licensed
amateur.

Anyone up on that?

"way back when", there was 2nd set of frequenceis, besides the 11m ones
for RC controls. I don't remember at this remove (roughly 30 years) just
where it was. Was not used much, gear was much more expensive.

And yes, there were some ham frequencies where RC operations were allowed.

Robert Bonomi wrote:
[snip]
"way back when", there was 2nd set of frequenceis, besides the 11m ones
for RC controls. I don't remember at this remove (roughly 30 years) just
where it was. Was not used much, gear was much more expensive.

IIRC, there was some RC at ~49MHz. ISTR some in the 72-76 MHz range as
well, but since aircraft marker beacons operate at 75 MHz, I may be
imagining.

And yes, there were some ham frequencies where RC operations were allowed.

Hams can use almost any VHF or UHF frequency for RC: in fact, some RC
competitors have obtained ham licenses just to get access to
interference-free channels and thus away from the "clothespin
competition" so often seen at meets.

William

(Filter noise from my address for direct replies)

Robert Bonomi ) writes:

"way back when", there was 2nd set of frequenceis, besides the 11m ones
for RC controls. I don't remember at this remove (roughly 30 years) just
where it was. Was not used much, gear was much more expensive.

And yes, there were some ham frequencies where RC operations were allowed.


Amateur radio invented remote controlled vehicles, certainly as a hobby.

Since amateur radio was a technical playground, and fairly open rules
to allow that, it was there when someone wanted to fly a remote controlled.
Years ago, there was a bit in QST about early work in RC airplanes, I think
it was Ross Hull (the Australian ham who moved to the US to work at the ARRL
and was never licensed in the US, and died by accidental electrocution) and
Roland Bournes.

It took no special license, since it was allowed under the rules. It
was only later, when the hobby became more popular that a need for
an RC license that didn't require a test came about, with frequencies
set aside for the purpose.

There was a whole period when people would get a ham license because
they were interested in radio controlled vehicles.

That faded with the arrival of RC licenses and frequencies.

The "frequencies" for RC in the ham bands were a combination of where
it was legal to send that sort of thing (but it wasn't specifically
about RC) and gentlemen's agreement, since one didn't really want
interference from other operators when flying an RC plane.

Michael VE2BVW