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Advice to Boost local CBS HD with setup for Superbowl

peytonlee
01-07-2007, 02:58 PM
I currently am a DISH owner. I have an off air ant. with all local channels. The problem is that ALL channels have 85% and up signal except the local CBS. This has 78-83%. While most of the time the broadcast is fine, there are several short signal loss that interupts the signal.

Can I do anything to improve this situation. I'm having a party for the superbowl and don't want to have these small interuptions. The following is the equipment I have.

CM 3021 ant.
7775 pre-amp.

I live in Williamsburg VA (23188)

Thanks in advance for any assistance.

jim5506
01-07-2007, 03:06 PM
That Channel Master Advantage Antenna is good but not great. Look at getting a CM Crossfire, higher gain more durable, etc. Maybe jump up to a Winegard 8200 antenna.

peytonlee
01-07-2007, 03:12 PM
Thanks for the quick reply!!
I will look into those two. As I said the only issue I have is the local CBS...everything else is fine. Do you think an amplifier on top of the pre-am would do anything? I don't know if I have the time to change ant. before the superbowl.

I appreciate any advice.

Thanks

peytonlee
01-07-2007, 03:27 PM
Jime/others:

I just looked at your reccommended ants. The CM crossfire and Winguard 8200 are way too big for the BS subdivision rules I have...so they are not an option.

Tower Guy
01-07-2007, 04:10 PM
Jime/others:

I just looked at your reccommended ants. The CM crossfire and Winguard 8200 are way too big for the BS subdivision rules I have...so they are not an option.

The suggested antennas are VHF/UHF. All of your DTV channels are UHF. The CM 3021 (aka 4221) is UHF only, so you did OK by yourself.

The next step up is the Channel Master 4228. It looks like two of your 3021's side by side.

peytonlee
01-07-2007, 04:33 PM
I looked at the 4228 also. Do you think that would bring in my one weak (CBS) signal. I don't care about the $, however like I said all other digital/HD signals are great. The CBS signal is good (80%) on average, however it seems to fall to 49% for an instant then regains signal?

jim5506
01-07-2007, 05:57 PM
I presumed (incorrectly) you were dealing with a UHF/VHF situation, Either the 4228 (8-bowties)or an antennas Direct XG91 (yagi) will get you about 3 more dB than the 3021.

rudyusmc1980
01-07-2007, 07:23 PM
if you recieve pbs and mnt over the air, you should be getting cbs also as they appear to be transmitting from the same location and all are uhf right now. I would suspect the station itself is not using full power.

using just your zip code on antennaweb.org , you are approx. 37 miles from the towers and they are at 169 degrees. also, ABC is at 166 degrees and the same distance from you, so check that you are still pointing in the right direction (wind, bad dish install etc)

tigerbangs
01-07-2007, 09:18 PM
You are really at the outside limits of what one would expect to receive with a 4-bay antenna and a preamp. Go to a 4228 or an AntennasDirect XG91 or XG-43, and get a little altitude: it shoud clear up your problem. Aiming is critical with either antenna for your best results, though. If this was my instalation, and given your location between Richmond and Norfolk, I would install an antenna rotator and get myself access to both cities' stations.

deadhead68
01-08-2007, 07:59 AM
Jime/others:

I just looked at your reccommended ants. The CM crossfire and Winguard 8200 are way too big for the BS subdivision rules I have...so they are not an option.

Nobody can leagally block you from putting those antennas up.

DeadHead68

kierandill
01-11-2007, 08:28 PM
Nobody can leagally block you from putting those antennas up.

DeadHead68

^What he said. The Feds say Homeowners' Associations cannot prevent you from installing a rooftop antenna for broadcast reception.
http://www.fcc.gov/mb/facts/otard.html

gintzj
01-11-2007, 08:35 PM
albuquerque cbs is greatr picture with OTA and 5.1