All TV Signals Are Blocked By Mountains. Only Reflections Are Available Here.
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- Опубліковано 20 січ 2023
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Due to living in a city surrounded by mountains, I'm often forced to point my TV antennas at mountains which are far from the transmitters, This is one such example..
i live in a bowwl with 4000 foot mountains . a friend of mine has a full 360 degree view of the sky. he gets 50 tv signals amplifed with a tv amplifier. his site has remnats of radio antennas and from what i was told there were a number of ge and marconi listening sites for maritime traffic on the coast . they were also used to listen for war signals in ww2. i also live in a aprtment so that dosent help either.
My basic knowledge about the signals changing over the day or night is because the ionosphere & troposphere affects them. I was told that is why HAM radio people prefer to certain times of the day or night to broadcast.
When I was heavy into HAM radio had a 2-meter 8 element Yagi vertical antenna, and I had to point it toward a mountain range about 40-50 miles away at 90 degrees off axis to talk simplex from Chico, CA to Sacramento, CA (about 60-70 miles). I could talk to one of my friends in his mobile. He was running a Yaesu at 50W and I had a Kenwood at 70W.
the main interfirence during the day is tree mag fields and sun shine electric . when dealibg with weak signal every thing effects signal strenth . impeadance in the flow yars
I believe that my West facing TV antenna signals, in the Las Vegas valley are reflective. Reception during bad weather, especially snow covered mountains, knocks out several stations. Most of the primary stations are VHF
There are a lot of trees out my way and the little bit of a signal I get can change with wind or rain.
Dave's the man!
In Costa Rica we do many installations using reflected/bounced signals or echoes. There are sites surrounded by mountains where is the only solution to get channels, usually the stronger ones.
On a VERY local level I had to adjust the rabbit ears on my B/W TV on an hourly basis back in the early 80's. I don't know why though. It might have been heat in the house or the the amount of things plugged into the wall. (oven on or off)
I think it’s a really cool job dude. Nice niches
In Europe OTA reception is not a problem and I'm talking in situations that you experienced and places with no signal at all. The solution is satellite television, and I'm talking that in most countries the TV channels that broadcast OTA (terrestrial as we call them) are also broadcasting free to air on satellite.
you can install a Passive repeater as back-to-back antenna system on the mountain
What about a vertical phased array TV antenna???
will that change,in time ,,the direction, weather etc ?
Unfortunately reflections of tv signals are too unstable.... in bad weather they can just vanish and the customer can not watch tv. Did u try a mast head amp? or were u worried about amplifying the noise level? Did u try a 10ft, 15ft and 20ft mast at the roof peak?? cos with a masthead amp it should have enough db to cater for the longer coax required.