More Antenna Info

----- HDTV Magazine Tips List -----

Try a small attenuator (3dB) and then rotate antenna a slight amount at a
time. Then try 6dB if the other does not help. If these do not do it you can
get a channel block and feed another antenna. May work for you. I will try
to check on an attenuator for just that channel. There are companies that
make all types of filters for RF.


-----Original Message-----
From: Walt Moody
Sent: Wednesday, August 31, 2005 10:59 AM
To: HDTV Magazine
Subject: More Antenna Info

----- HDTV Magazine Tips List -----

Thanks for the responses. I haven't been receiving them but Shane was
kind enough to send them to me. Here's some more info on my situation:

I do not use a preamp (removed it a while back because of this problem).
I do use a rotor.
My local HD stations are on channel 2 (NBC), 22 (ABC) 32 (PBS that never
comes in now but did with the preamp) and 46 (CBS).

Is there a way to block just channel 46 and use a smaller antenna for
it? ABC and NBC come in fine but are lower power and I worry that a
broad spectrum attenuator will interfere with those channels. To
further complicate things, my local FOX will soon be broadcasing on
channel 50 so just a upper frequency attenuator may make more problems.
I'll try the attenuator regardless though. I have tried rotating the
antenna and it helps some but doesn't eleminate the dropouts completely
(before the power increase, reception was basically perfect). and there
are enough breaks to be distracting (every few minutes). Please CC any
further replies or questions directly to me at [email protected]
since my TIPS feed is spotty right now. Thanks.

Walt

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----- HDTV Magazine Tips List -----

Thanks. I'll give it a try as soon as I can get to Rat Shack. Given that
I have a clear line of sight to the tower, is it more likely that I'm
having a signal overload than multipath interference? A full megawatt
from 15-20 miles on a 100" antenna seems like it may be a bit strong.
Never thought there was such a thing as TOO MUCH signal. I would
appreciate any leads you or others can provide on a channel-specific
attenuator. I've already looked some myself but have had no luck. I'd
rather not use a broad spectrum att. as my ABC station is weak. I'd
probably go with a block and a separate (smaller) antenna for CBS if I
can only use a wide-range att. Thanks again.

Walt

[email protected] wrote:

>----- HDTV Magazine Tips List -----
>
>Try a small attenuator (3dB) and then rotate antenna a slight amount at a
>time. Then try 6dB if the other does not help. If these do not do it you can
>get a channel block and feed another antenna. May work for you. I will try
>to check on an attenuator for just that channel. There are companies that
>make all types of filters for RF.
>
>
>-----Original Message-----
>From: Walt Moody
>Sent: Wednesday, August 31, 2005 10:59 AM
>To: HDTV Magazine
>Subject: More Antenna Info
>
>----- HDTV Magazine Tips List -----
>
>Thanks for the responses. I haven't been receiving them but Shane was
>kind enough to send them to me. Here's some more info on my situation:
>
>I do not use a preamp (removed it a while back because of this problem).
>I do use a rotor.
>My local HD stations are on channel 2 (NBC), 22 (ABC) 32 (PBS that never
>comes in now but did with the preamp) and 46 (CBS).
>
>Is there a way to block just channel 46 and use a smaller antenna for
>it? ABC and NBC come in fine but are lower power and I worry that a
>broad spectrum attenuator will interfere with those channels. To
>further complicate things, my local FOX will soon be broadcasing on
>channel 50 so just a upper frequency attenuator may make more problems.
>I'll try the attenuator regardless though. I have tried rotating the
>antenna and it helps some but doesn't eleminate the dropouts completely
>(before the power increase, reception was basically perfect). and there
>are enough breaks to be distracting (every few minutes). Please CC any
>further replies or questions directly to me at [email protected]
>since my TIPS feed is spotty right now. Thanks.
>
>Walt
>
>To unsubscribe please click: [email protected]
>
>To receive the digest mode (one email a day made from all posted that same
>day) send an email to:
>[email protected]
>
>
>
>
>
>


To unsubscribe please click: [email protected]

To receive the digest mode (one email a day made from all posted that same day) send an email to:
[email protected]

----- HDTV Magazine Tips List -----

A small ant (low gain, possibly aimed off line) mounted on the tower and
combined on the line may just do the trick. If multi ant problems arise, use
the second ant. Input on your TV, assuming it has 2 HD tuners. Otherwise,
you may need an ant switcher. I will pass this along to a retired eng.
Professor of mine that does work for DOD, Navy and such with ant and see if
he has a solution.

-----Original Message-----
From: Walt Moody
Sent: Thursday, September 01, 2005 12:05 PM
To: HDTV Magazine
Subject: Re: More Antenna Info

----- HDTV Magazine Tips List -----

Thanks. I'll give it a try as soon as I can get to Rat Shack. Given that
I have a clear line of sight to the tower, is it more likely that I'm
having a signal overload than multipath interference? A full megawatt
from 15-20 miles on a 100" antenna seems like it may be a bit strong.
Never thought there was such a thing as TOO MUCH signal. I would
appreciate any leads you or others can provide on a channel-specific
attenuator. I've already looked some myself but have had no luck. I'd
rather not use a broad spectrum att. as my ABC station is weak. I'd
probably go with a block and a separate (smaller) antenna for CBS if I
can only use a wide-range att. Thanks again.

Walt

[email protected] wrote:

>----- HDTV Magazine Tips List -----
>
>Try a small attenuator (3dB) and then rotate antenna a slight amount at a
>time. Then try 6dB if the other does not help. If these do not do it you
can
>get a channel block and feed another antenna. May work for you. I will try
>to check on an attenuator for just that channel. There are companies that
>make all types of filters for RF.
>
>
>-----Original Message-----
>From: Walt Moody
>Sent: Wednesday, August 31, 2005 10:59 AM
>To: HDTV Magazine
>Subject: More Antenna Info
>
>----- HDTV Magazine Tips List -----
>
>Thanks for the responses. I haven't been receiving them but Shane was
>kind enough to send them to me. Here's some more info on my situation:
>
>I do not use a preamp (removed it a while back because of this problem).
>I do use a rotor.
>My local HD stations are on channel 2 (NBC), 22 (ABC) 32 (PBS that never
>comes in now but did with the preamp) and 46 (CBS).
>
>Is there a way to block just channel 46 and use a smaller antenna for
>it? ABC and NBC come in fine but are lower power and I worry that a
>broad spectrum attenuator will interfere with those channels. To
>further complicate things, my local FOX will soon be broadcasing on
>channel 50 so just a upper frequency attenuator may make more problems.
>I'll try the attenuator regardless though. I have tried rotating the
>antenna and it helps some but doesn't eleminate the dropouts completely
>(before the power increase, reception was basically perfect). and there
>are enough breaks to be distracting (every few minutes). Please CC any
>further replies or questions directly to me at [email protected]
>since my TIPS feed is spotty right now. Thanks.
>
>Walt
>
>To unsubscribe please click: [email protected]
>
>To receive the digest mode (one email a day made from all posted that same
>day) send an email to:
>[email protected]
>
>
>
>
>
>


To unsubscribe please click: [email protected]

To receive the digest mode (one email a day made from all posted that same
day) send an email to:
[email protected]




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Version: 7.0.344 / Virus Database: 267.10.18/86 - Release Date: 8/31/2005


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----- HDTV Magazine Tips List -----

Walt- Knocking out a single channel is easy. A Channel Master
Join-tenna will do it. (Don't use the Winegard UT-2700 Dual Trap. The
notches provided by this filter are too narrow to cover a whole
channel. If the Join-tenna doesn't suppress the channel sufficiently
then you can add the UT-2700 to it, but adjusting the UT-2700 is
difficult.) The Join-tenna will allow you to add a second small
antenna just for channel 46. See
http://www.hdtvprimer.com/ANTENNAS/glos ... #jointenna .

Another approach to this problem is an antenna with nulls. This
approach might be better, depending on the direction and strength of
channel 50. See
http://www.hdtvprimer.com/ANTENNAS/glossaryG.html#nulls . -Ken




-----Original Message-----
From: Walt Moody <[email protected]>
To: HDTV Magazine <[email protected]>
Sent: Thu, 01 Sep 2005 12:05:18 -0400
Subject: Re: More Antenna Info

----- HDTV Magazine Tips List -----