Cecil Moore wrote:

...
My Webster's unabridged dictionary gives the following
examples of the correct way to pluralize numbers.

"figure 8's", "the 1890's", "the 20's"

73 is a number that stands for "Best Regards"

73's would be "Lots of Best Regards".

A friend of mine is a dispatcher for police/fire/ambulance/etc., in my
area. Her 10 code often requires her to use the "10-73" from this ten
code--which is a "smoke report."

So, thanks for clarifying this for me. I simply took the 73's on many
of the posts sigs as a sign they were "blowing smoke" (actually, "Lots
of smoke!" :-) ), and giving me fair warning! straight-face

Regards,
JS

On Wed, 19 Nov 2008 22:53:28 -0800, Richard Clark wrote:

You should start building what your screen shot gave you IF that is the
span of frequency you need (already questioned by other correspondents).

Apparently I'll only need up to ch. 52; have to look up the carrier freq.
on that.

Ch. 14 = 470-476 MHz
Ch. 83 = 884-890 MHz I think.

Now all I need to do is the algebra. ;-)

52 - 14 = 38
38 * 6 = 228
228 + 470 = 698
698 + 6 = 704

Cheers!
Rich

On Wed, 19 Nov 2008 22:45:19 GMT, Rich Grise wrote:

My current UHF antenna is a 14" Radio Shack clip lead clipped from the
center of my coax to the venetian blind. I have to hand-adjust it
for the channel, weather conditions, phase of the moon, etc. I can
do this because I can _see_ an indication of signal strength.

Well, with this new Fascist "No More Free TV" crap, I'm gonna need
a real UHF antenna. My budget is exceedingly limited, but I have
a supply of materials (GTAW filler rod, with some coppery-colored
coating, so it solders like a dream, and is as stiff as piano wire)
to build an antenna with.

But I've been searching the web for some weeks now, and I can't
seem to find any kind of formula, except there was this program
I downloaded - LPDA.EXE, which runs on DOS. Unfortunately, it's
in Russian or Polish or Uzbekistani - one of those East Yurp
languages. Here's a screen snap:
http://mysite.verizon.net/richgrise/...rog-Output.gif

Which I went through pretty much by-guess-and-by-gosh - can
anybody read that stuff?

There are a lot of factors I don't know about, like "Tau", and
all of the specific designs on the web are flat - something is
telling me I want one of those pyramid-shaped ones, but I really
don't know the difference (between that and flat) - it's probably
something to do with bandwidth or F/B ratio or whatever.

My local library has no ARRL Antenna Book (!), and did I mention
I have a seriously limited budget?

So, how do I pursue this? It'd be nice to have a program that will
calculate the whole thing for me, but am I dreaming? If I want to
send myself to Log-Periodic School, where should I start?

Or, does anyone have a UHF-TV log-periodic design that they'd share? :-)

Thanks,
Rich


Why don't you sell your house and move to a place next to the TV
transmitter station. You will only need a piece of wire then.
Or the bare finger.
Must be wet, of course.


w.

Helmut Wabnig wrote:

Why don't you sell your house and move to a place next to the TV
transmitter station. You will only need a piece of wire then.
Or the bare finger.
Must be wet, of course.


Have you ever tried to get a clear picture, "next to the TV
transmitter station"? The radiation pattern on the transmitting antenna
leaves almost no signal in the shadow of the tower. I had to point the
OTA antenna towards another tower a half mile away to get enough signal
to monitor the 5 MW EIRP signal at the Channel 55 tower in Orange City,
Florida. People within a half mile of the tower base couldn't get a
clear signal.


--
http://improve-usenet.org/index.html

aioe.org, Goggle Groups, and Web TV users must request to be white
listed, or I will not see your messages.

If you have broadband, your ISP may have a NNTP news server included in
your account: http://www.usenettools.net/ISP.htm


There are two kinds of people on this earth:
The crazy, and the insane.
The first sign of insanity is denying that you're crazy.

Rich Grise wrote:
My current UHF antenna is a 14" Radio Shack clip lead clipped from the
center of my coax to the venetian blind. I have to hand-adjust it
for the channel, weather conditions, phase of the moon, etc. I can
do this because I can _see_ an indication of signal strength.

Well, with this new Fascist "No More Free TV" crap, I'm gonna need
a real UHF antenna. My budget is exceedingly limited, but I have
a supply of materials (GTAW filler rod, with some coppery-colored
coating, so it solders like a dream, and is as stiff as piano wire)
to build an antenna with.

But I've been searching the web for some weeks now, and I can't
seem to find any kind of formula, except there was this program
I downloaded - LPDA.EXE, which runs on DOS. Unfortunately, it's
in Russian or Polish or Uzbekistani - one of those East Yurp
languages. Here's a screen snap:
http://mysite.verizon.net/richgrise/...rog-Output.gif

Which I went through pretty much by-guess-and-by-gosh - can
anybody read that stuff?

There are a lot of factors I don't know about, like "Tau", and
all of the specific designs on the web are flat - something is
telling me I want one of those pyramid-shaped ones, but I really
don't know the difference (between that and flat) - it's probably
something to do with bandwidth or F/B ratio or whatever.

My local library has no ARRL Antenna Book (!), and did I mention
I have a seriously limited budget?

So, how do I pursue this? It'd be nice to have a program that will
calculate the whole thing for me, but am I dreaming? If I want to
send myself to Log-Periodic School, where should I start?

Or, does anyone have a UHF-TV log-periodic design that they'd share? :-)

Thanks,
Rich

Log periodics are not necessary for sub-octave operation.

http://www.youtube.com/watch?v=EWQhlmJTMzw

On Thu, 20 Nov 2008 13:50:57 +0000, Dave wrote:

Log periodics are not necessary for sub-octave operation.

http://www.youtube.com/watch?v=EWQhlmJTMzw

Dude! Awesome! And this one doesn't even have a reflector!. I
wonder how far I should hang it in front of the venetian blind. ;-)

Thanks!
Rich

Rich Grise wrote:
On Thu, 20 Nov 2008 13:50:57 +0000, Dave wrote:
Log periodics are not necessary for sub-octave operation.

http://www.youtube.com/watch?v=EWQhlmJTMzw

Dude! Awesome! And this one doesn't even have a reflector!. I
wonder how far I should hang it in front of the venetian blind. ;-)

Thanks!
Rich


I don't have time to search for it, but there's also a dual quad UHF TV
antenna that's easy to build with the same kind of materials. I prefer
steel tie wire to coat hangers because it's easier to work with.

In article , Rich Grise wrote:
My current UHF antenna is a 14" Radio Shack clip lead clipped from the
center of my coax to the venetian blind. I have to hand-adjust it
for the channel, weather conditions, phase of the moon, etc. I can
do this because I can _see_ an indication of signal strength.

I did the same thing and I was surprised how many digital chanels I got.
I was at a dollar store and saw the RCA UHF/VHF loop/ears for $5 and
that gave me considerable better reception.

greg

In article , Rich Grise wrote:
My current UHF antenna is a 14" Radio Shack clip lead clipped from the
center of my coax to the venetian blind. I have to hand-adjust it
for the channel, weather conditions, phase of the moon, etc. I can
do this because I can _see_ an indication of signal strength.

Well, with this new Fascist "No More Free TV" crap, I'm gonna need
a real UHF antenna. My budget is exceedingly limited, but I have
a supply of materials (GTAW filler rod, with some coppery-colored
coating, so it solders like a dream, and is as stiff as piano wire)
to build an antenna with.

But I've been searching the web for some weeks now, and I can't
seem to find any kind of formula, except there was this program
I downloaded - LPDA.EXE, which runs on DOS. Unfortunately, it's
in Russian or Polish or Uzbekistani - one of those East Yurp
languages. Here's a screen snap:
http://mysite.verizon.net/richgrise/...rog-Output.gif

Which I went through pretty much by-guess-and-by-gosh - can
anybody read that stuff?

There are a lot of factors I don't know about, like "Tau", and
all of the specific designs on the web are flat - something is
telling me I want one of those pyramid-shaped ones, but I really
don't know the difference (between that and flat) - it's probably
something to do with bandwidth or F/B ratio or whatever.

My local library has no ARRL Antenna Book (!), and did I mention
I have a seriously limited budget?

So, how do I pursue this? It'd be nice to have a program that will
calculate the whole thing for me, but am I dreaming? If I want to
send myself to Log-Periodic School, where should I start?

Or, does anyone have a UHF-TV log-periodic design that they'd share? :-)

Thanks,
Rich

Ever hear of the BOW TIE. Its a sort of Fractal antenna. Having a wide band.
It could be improved by making it a full fractal.

greg

On Thu, 20 Nov 2008 14:18:47 +0000, GregS wrote:

Ever hear of the BOW TIE. Its a sort of Fractal antenna. Having a wide
band. It could be improved by making it a full fractal.

Yes - somebody just pointed to a youtube of somebody making one out
of coathangers.

I think I'm gonna do that.

Cheers!
Rich