HDTV Forum

In my area (Charleston), certain channels such as NBC HD and FOX HD transmit from the same tower. However FOX HD comes in perfectly whereas NBC HD does not pick up at all. The same goes for the CBS HD and the ABC HD channels which both transmit from a different tower, but the situation is the same. I get CBS HD in fine but ABC HD does not get picked up at all. The analog versions of all the channels are picked up fine.

Whats up!?!?

According to the FCC website, WCBD (NBC) and WCIV (ABC) have been granted construction permits for high-power DTV transmitters, but their current temporary licenses are for low power.

According to antennaweb.org, both of these stations are easy to receive, which would be consistent with them being at high power. Given your problems, I would guess that the antennaweb info is inaccurate. But I don

Alright, thanks for the help.
My zip code is 29420.

Strange thing, though, is that I used to be able to get these channels in the past. It wasn't until about 2 months ago that they suddenly dropped from the TV. I tried reprogramming the TV to rescan for the channels, but that did not help.

TV reception tends to be better in the winter. It might be that you can sometimes receive the low-power signals. -Ken

I live in the zip code of 92505 and i get i guess what is considered fading from channels coming off the same tower. ABC comes in clear but fox and others such as cbs don't at all. When i view the signal strength meter it spikes from have basically no signal at all for FOX and CBS to having full strength. I have a UHF antenna on the roof with a 30db amp. the HDTV receiver is a SIR-T451. HELP!!! no one from bestbuy or radioshack or circuit city seem to know what i should do.

When I submit 92505 to antennaweb it tells me the only DTV station in range for you is PBS. Since you get ABC well, your location must be better than that of the

1. Could you give me a location closer to your house?
5005 sierra vista ave riverside, ca 92505
2. Are you referring to DTV or analog stations? DTV Stations.
i get telefutura (spanish channel in DTV) as well.
3. What is the antenna model number?
U-75R UHF (from radioshack)
4. What is the amplifier model number?
TV-FM Antenna-Mounted High-Gain Signal Amplifier (from Radioshack)
Gain: Typical 30db VHF/UHF
FM Trap: >20db at 100mhz
Gain Control: 0 to 10db cut
5. Have you tried moving the antenna?
Yes, have not seen a real benefit. This website says a 303 degree position and the antenna web says 290 degrees. i have used a magnetic compass to make sure these angles are correct.
6. Have you read the

Apparently you are behind a hill. From Mira Loma all the LA stations are easy to receive. The hill will make UHF reception very difficult for you. The results you are getting now say all is not hopeless. But if you are to succeed you must not make any mistakes.

The U-75R is a mistake. It has a 40

I'm having a similar problem with CBS in NYC. All the major networks are broadcasting from Empire State, which I have a clear view of. I'm only getting half power on CBS compared to the others. Can you give me any help in finding any info on the FCC site regarding any construction they are working on. I've tried phone calls and email to them but they haven't responded. Thanks EZ

I am not sure what problem you are describing. If you are trying to receive CBS analog then a weak signal would give you some snow.

If you are referring to CBS digital then a weak signal might cause dropouts, which would be portions of the screen freezing, which would be obvious, severe errors. But if you are referring just to the signal strength readout being below that of other stations, then you have no problem and increasing the signal strength will cause no improvement of the picture.

If you can see the top of the ESB then reception depends on whether the antenna can see it too. That means no intervening trees or structures. (Power and phone lines are conceivably a problem.) If so then reception should be easy and a large antenna not generally necessary.

I am in California and I don