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Over the air tv interference
- Thread starter 455monte
- Start date
https://wiki.radioreference.com/index.php/Television_Frequencies
Look at the frequency chart I linked above. The filter I mentioned earlier passes the TV frequencies, and filters below that which will include the CB band.
I had an Antron splatter stick about 15 feet away from the TV antenna. Four watt radio would cause squiggly lines on the TV. Amp on and there was no picture. Filter fixed my problem.
Look at the frequency chart I linked above. The filter I mentioned earlier passes the TV frequencies, and filters below that which will include the CB band.
I had an Antron splatter stick about 15 feet away from the TV antenna. Four watt radio would cause squiggly lines on the TV. Amp on and there was no picture. Filter fixed my problem.
Snippits, i ordered a similar filter from amazon a few days ago.
It does same function as one u posted. It should be here tomorrow and i will give it a shot.
Mike my current tv transmitters i receive range from 16 miles to 65 miles away
It does same function as one u posted. It should be here tomorrow and i will give it a shot.
Mike my current tv transmitters i receive range from 16 miles to 65 miles away
i believe we are on same page on his tv. weak signal n a low watt radio over rides tv reception . filters wont help either. but bad tv coax can contribute as well as connections
Last night i moved the sirio to the back corner of my shop. This is 25 feet further away from the tv antenna. Now i can talk barefoot without tv interference .
Still cant transmit using the rm 503hd without upsetting the tv.
Still cant transmit using the rm 503hd without upsetting the tv.
I have the 3rd rod. I have my antenna mountwd on a counter lever bracket i made so that when storms are coming i can pull a string and the antenna lays down on the shop roof.
With only 2 ground plane rods it is shaped like a T
If i added 3rd when it kayed down i would have a 51 inch rod sticking straight up.
What does using or not using the ground plane rods accomplish?
With only 2 ground plane rods it is shaped like a T
If i added 3rd when it kayed down i would have a 51 inch rod sticking straight up.
What does using or not using the ground plane rods accomplish?
I think the ground plane rods mostly effect the radiation pattern and maybe the SWR. I was thinking along the lines of common mode currents and was wondering if this was the cause of your problem? Do you still have the problem with all of them installed?
How old is the TV antenna coax? It typically has a lifespan of around a decade but here in the UK it's not uncommon for houses to have cable that's 20-30 years old and the first people know of an issue is when water is coming out of the cable at the TV end.
Okay guys check this out.
I changed the cheap gas station rg8x coax out for a expensive lmr400 and added the 3rd radial to the base. 99 percent of the interference went away on 1 of my tvs. Ironically the tv antenna furthest away from the cb sirio antenna still recieved interference. (The 2 week old one)
So i reconnected the original tv antennna to that tv and problem solved on am using the 503hd
On lsb with 503hd theres a minimal interference on a few tv channels. I assume those are the weak channels.
On a side note the tv coax hi pass filter didnt help at all
I changed the cheap gas station rg8x coax out for a expensive lmr400 and added the 3rd radial to the base. 99 percent of the interference went away on 1 of my tvs. Ironically the tv antenna furthest away from the cb sirio antenna still recieved interference. (The 2 week old one)
So i reconnected the original tv antennna to that tv and problem solved on am using the 503hd
On lsb with 503hd theres a minimal interference on a few tv channels. I assume those are the weak channels.
On a side note the tv coax hi pass filter didnt help at all
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