More off air TV antenna questions

T

Tony Miklos

Guest
I bought and installed a new Winegard 7697P antenna with a rotator. I
want to install a pre-amp but I'm not sure which one. I will be keeping
the noise at or below 3dB but I'm not sure if I should get the
strongest pre-amp I can afford or can it be too strong? I have a couple
very strong stations, one that will actually come in perfect with a bent
paper clip for an indoor antenna but I'm also trying to reach some
fringe stations that even though the DTV converter found them, they
don't come in very well. They fade in and out, often giving the "no
signal" message or sometimes the "audio only" message, and sometimes I
can't tune them in at all.

I am using the TVfool.com website to rotate the antenna to the proper
direction.

Thanks again,
Tony
 
Tony Miklos wrote:
I bought and installed a new Winegard 7697P antenna with a rotator. I
want to install a pre-amp but I'm not sure which one. I will be keeping
the noise at or below 3dB but I'm not sure if I should get the
strongest pre-amp I can afford or can it be too strong? I have a couple
very strong stations, one that will actually come in perfect with a bent
paper clip for an indoor antenna but I'm also trying to reach some
fringe stations that even though the DTV converter found them, they
don't come in very well. They fade in and out, often giving the "no
signal" message or sometimes the "audio only" message, and sometimes I
can't tune them in at all.

I am using the TVfool.com website to rotate the antenna to the proper
direction.

Thanks again,
Tony
With that strong station around, you will get huge crossmodulation
Click to expand...
with high amplification.
So keep amplification as low as you can use, and use a high quality
adjustable amplifier.
 
On Mon, 23 Feb 2009 02:03:05 +0100, Sjouke Burry
<burrynulnulfour@ppllaanneett.nnll> wrote:

Tony Miklos wrote:
I bought and installed a new Winegard 7697P antenna with a rotator. I
want to install a pre-amp but I'm not sure which one. I will be keeping
the noise at or below 3dB but I'm not sure if I should get the
strongest pre-amp I can afford or can it be too strong? I have a couple
very strong stations, one that will actually come in perfect with a bent
paper clip for an indoor antenna but I'm also trying to reach some
fringe stations that even though the DTV converter found them, they
don't come in very well. They fade in and out, often giving the "no
signal" message or sometimes the "audio only" message, and sometimes I
can't tune them in at all.

I am using the TVfool.com website to rotate the antenna to the proper
direction.

Thanks again,
Tony
With that strong station around, you will get huge crossmodulation
with high amplification.
So keep amplification as low as you can use, and use a high quality
adjustable amplifier.
Click to expand...
Or rotate the antenna to put the paper-clip-strength station onto a
null. With the rotator, one could probably do that by trial and error.
Or, the OP could try modeling the array with 4nec2.
http://home.ict.nl/~arivoors/

--
Rich Webb Norfolk, VA
 
Rich Webb wrote:
On Mon, 23 Feb 2009 02:03:05 +0100, Sjouke Burry
burrynulnulfour@ppllaanneett.nnll> wrote:

Tony Miklos wrote:
I bought and installed a new Winegard 7697P antenna with a rotator. I
want to install a pre-amp but I'm not sure which one. I will be keeping
the noise at or below 3dB but I'm not sure if I should get the
strongest pre-amp I can afford or can it be too strong? I have a couple
very strong stations, one that will actually come in perfect with a bent
paper clip for an indoor antenna but I'm also trying to reach some
fringe stations that even though the DTV converter found them, they
don't come in very well. They fade in and out, often giving the "no
signal" message or sometimes the "audio only" message, and sometimes I
can't tune them in at all.

I am using the TVfool.com website to rotate the antenna to the proper
direction.

Thanks again,
Tony
With that strong station around, you will get huge crossmodulation
with high amplification.
So keep amplification as low as you can use, and use a high quality
adjustable amplifier.

Or rotate the antenna to put the paper-clip-strength station onto a
null. With the rotator, one could probably do that by trial and error.
Or, the OP could try modeling the array with 4nec2.
http://home.ict.nl/~arivoors/
Click to expand...

Thanks, I think I should have bought an antenna that was more
directional. At first I thought this would be good so I don't have to
rotate the antenna for each and every station, but for picking out those
stations 75 to 100 miles away I probably didn't pick the best antenna.
If things don't work adding a pre-amp I just may buy a highly
directional antenna and add the new/old one 5' down below the rotator
and couple them. First I'll try a low power low noise pre-amp and see
what happens.

Thanks again,
Tony
 
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