still having an hard time with the attic setup
my tv fool is here

http://www.tvfool.com/?option=com_wrapper&Itemid=29&q=id%3d67d9a7642ee79c

What equipment R U using shwa guy?

You can't really compare cfto to chch.
It's like a candle next to a good led flashlight. You can see those flashlights even through your eyelids ;)

CHCH requires a true high-gain VHF antenna to receive it. CFTO has enough power behind it that even a weak-VHF antenna like a 4-bay can receive it without issue.

I suspect their ad is based on it having mild VHF reception ability - as you can see with CFTO, provided it is strong enough. But for far away VHF, not much chance.
The difference is 3KW lower and 30 miles furthur. U may be correct.

i am using a High Gain Digital Attic Design with a pre amp
on my back I have a 8ft mast with a 8bay

need more detail -makes, models etc.

Ok, I'm definitely NOT imagining this now.

I live in an area where Channel 2 from Buffalo is very fringy, coming in perhaps 1 in 15 days. That 1 appears to be whenever there's snow on the ground.

Every FAQ states that precip is bad for reception, but it seems it's different once it hits the ground. Anyone know what's going on?

^^^ Your post doesn't say where you're located.

There COULD be the effect of snow landing on some metal objects and reducing multipath effects... It's quite variable as snow varies greatly in the amount of moisture contained within it, flake size, temperature, wind speed etc.

Our last short but hard snowfall of a couple of days ago happened without any noticeable wind, a rare occurrence, but does happen. FM radio tropo was slightly present. Two OTA recordings weren't adversely affected.

But these things can change abruptly... :-)

Cameron

Guys I too come to the same conclusion. Whenever it snows around here, (Montreal) UHF reception definitely improves but in my case, it is most certainly due to a warming triend needed for precipitations to take place.

A warming trend = tropospheric conditions. For instance, if one day the skies are clear and the temperature sticks to about -15-12, reception of fringe stations will be so-so at best. Call for snow the next day and the temp is bound to rise, Watch for slight to moderate tropo event, especially in the dead of winter.

I get a similar effect here. Last night there was wet snow falling, heavily at times, and the reception on my weakest channel (WNYO 49.1) was about 10 points higher than normal as measured on my Sharp Aquos's signal strength indicator. :confused:

Reception across open water (SNOW) is nearly ALWAYS better than over land because of higher conductivity
(in the absence of a thermal inversion layer)....it's the difference between a low-loss vs lossy waveguide.
Propagation Prediction Programs show these differences when you enter different assumed conductivity.
[Most do NOT predict or calculate the effects of thermal inversion layers....]

When a layer forms...it can either improve or kill propagation, depending on which way waves are bent.
SNOW might also be causing a thermal inversion layer close to the ground as it warms the sub-zero air above it.

shwa guy...


Are you using a pre-amp?

I have an 8-bay in my attic (in Brooklin) and US channels were very unreliable without the pre-amp, especially 29. I put in a Channel Master CM-7778 pre-amp a year ago and I have had zero issues since.

I get a similar effect here. Last night there was wet snow falling, heavily at times, and the reception on my weakest channel (WNYO 49.1) was about 10 points higher than normal as measured on my Sharp Aquos's signal strength indicator. :confused:
Same here...during the snowfall my problem station ION 51.1 came in no problem. This station normally cuts in and out (but mostly out) during the winter months.

Put up a db4 on a chimney mount 20’ high facing about SSW, ran 60’ cable to 4x split. Results are;
4-1,5.1,7.1,9.1,19.1,23.1,29.1,36.1,41.1,47.1,57.1,69.1.
I am missing some channels and I am debating adding a distribution amp or a low power preamp at the head. Moved antenna more west and east, removed splitter and fed main TV only, no improvement. No sign of 11.1, 2.1, 49.1 These are in the yellow range.
.
UPDATE; moved antenna to new location now getting 2, 17, 49. Total 22 including subs. Mission accomplished.

I'm not sure if it's the terrible build quality of the 4-bay I have or the angle being that much further, but I'm having a bit of trouble with just the single 4-bay (weak CBS, NBC, FOX, OMNI).

I'm hoping a 4221HD or DB4e makes the difference, else I'll have to see if I can snag my old 4228 back :)
Broke down and got a DB4e.. excellent results.
Receiving everything with the single antenna, even ION, which I was not expecting this time of year.
The single split to HDHR was kind of hurting things but my CM 2-port dist amp fixed that, no problem. Most channels are in the 80s and 90s for strength. Just WGRZ and WPXJ in the 60s and 50s, respectively

What were you using?

Me?
The "brand-that-must-not-be-named" 2084 I bought a couple years back (before CM switched to the model that looks like it)

Hello Durham folks,

I am up in Brooklin. I had an installer come out and put a ******** ANT-7288 (Super DB8 Adjustable Multidirectional HDTV Antenna). Canadian channels came in pretty good but US ones were very inconsistent so I decided to attach a CM7778.

Unfortunately it seems while I was hanging on for my life installing the CM7778, I must have hit the antenna and knocked it out of alignment because I am not getting much now. The amplifier is working because the few channels I get are much better when power injector is plugged in.

So it's time for another trip up to the antenna. What channels are most difficult that I should use to help aim it? I plan on using 2 (NBC) and 51 (Ion?) for US, but what about Canada?

Thanks for any input.

You're not likely to get CH on 11, so not much worry there. The rest of t.o. should be a piece of cake.

US, aim for NBC, it's the weakest. Don't count on ION.. if you get t, bonus.

http://www.tvfool.com/?option=com_wrapper&Itemid=29&q=id%3d0b86561de8db73

29 and 7 flaky still on db4e with cm777

7777 is probably not the best choice of amp. You have analog channels near you that might be overpowering the pre-amp. Maybe a Winegard 269 would be the difference maker for you. I have a friend in Oshawa that has trouble-free reception from USA. With his rotator and pre-amp and channel master 3671 antenna on his old tower, he gets everything from everywhere including Barrie.