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Are you using an antenna mounted pre-amp? The gain of a pre-amp can overcome the loss of several splits but you may be too close to the broadcast stations to use a pre-amp. In that case a powered distribution amplifier is needed.

Neither band is significantly affected directly by rain. Other factors in a storm such as wind and lightning have a greater impact.

18 inches is far too small for an effective UHF antenna. Probably less than 3 dB effective gain at 500 MHz. At 30 inches your still only around 10 dBi and below that of a good log periodic.

I totaly agree with you there.

Well I don't want to divert the thread any further but I think what you describe is a very special circumstance such as a mountain range. TV fool shows all of my UHF digital reception from DC at 45 miles as 2nd edge diffraction when I basicly have LOS.

in what way?

Your example holds true or approximately true only by holding antenna gain fixed (an assumption) between the two cases. In that way the lower frequency antenna grows in size to a larger physical aperature and this produces an apparent path loss reduction by increasing capture area. That's the...

OK, but lowering transmitter power never provides better coverage. Lowering frequency only provides better coverage if we jump down far enough to switch to a much larger receive antenna, say from UHF to the VHF band. It's only the receivers larger antenna that provides better signal strength...

What? :confused:

Do you have a receiver/TV/load connected to both output ports on the splitter? Sometimes a port or cable connected to a port with no load can cause problems. If that's not the case you may have a defective or just plain crappy splitter. The splitter should be a VHF/UHF model good for at least...

This statement is correct as a general guideline but don't struggle with inches as it won't change anything. It would take several feet to begin to make any difference at all.

Are you using an antenna mounted pre-amp? If you use a splitter after a pre-amp, splitting the signal should have no impact if you are using the correct splitter.

Your situation is common. Bitter cold is great for OTA and it's mostly due to complex propagation effects, very dry air and lower noise figures for outdoor amplifiers.

Once your beyond line-of-sight at 65 miles or so it's always going to be a crapshoot regarless of antenna gain. High-gain UHF parabolic antennas can do little if the station your looking for is over the horizon.

In dual mode it would have required a second OTA tuner section. There's only so much you can stuff in the box.

BS. It has everything to do with exactly what I said. Tower Guy's statement is exactly correct.

It's easy. Lower frequencies require larger antennas. Larger antennas intercept more signal. If more signal is intercepted by your antenna the station doesn't need to transmit as much power to cover a given area.

I don't believe this to be true. For planning purposes, the FCC calculated field strengths for each frequency band fall to within 1 dB of the minimum values published for NTSC grade B contours at those same frequencies. As Texas said the FCC worked hard to achieve this. There is certainly no...

That digital assignment on channel 2 couldn't be worse for interference. Your only option is to get a larger higher-gain antenna if it's already as high as you can get it. And that might not work.

You can either split the signal after the power supply or get a splitter that passes DC power on at least one leg. http://www.winegard.com/offair/splitters.htm

You should be able to split those stations with a single CM 4221 or Winegard pr4400 4 bay since they are only about 6 degrees apart and not terribly far away.

Probably not. It isn't a question of having enough gain. Gain isn't the problem. Complex surfaces scatter RF energy in complex directions, not like a mirror. While the scattering may not be too bad at UHF frequencies (it would be better at VHF) using a mountain as a reflector is a real shot in...

The noise from the downstream amplifier is not additive. The linear noise contribution from downstream devices, actice or passive, is divided by the linear gain factor of the pre-amp, making it very insignificant. The cure for multipath is the same as for insufficient signal. More antenna...

I agree with AltAntMike but some things are basicly true regardless. It's unlikely a second amplifier will be your long-term solution. The CM 7777 already has around 26 dB of gain in the UHF band and that is plenty. Often too much. More gain is like turning up the volume to get rid of static...

I believe you miss the point. The two antennas are pointed in different directions. Both antennas can receive the same signal. One directly and the other being reflected from an unpredictable distance and/or multiple reflective surfaces. This makes the combined phases at the splitter...