dapaq2
Member
Group,
I am getting severe interference with my cable tv box and/or television from my own two way radio transmissions. I have a radio in the house at the other end of the house, the antenna is on the roof of the house, and I also have a radio in my car that is in the garage downstairs below the tv being affected. Frequencies used range from 144 MHz to 450 MHz, tx power ranges from 2 watts to 45 watts. I have done everything that I can think of to get it to stop, but no luck. I can only assume poor filtering or shielding in the cable tv box or tv itself. When transmitting the picture on the tv breaks up so bad it distorts the picture and if transmitting for more than about 3 to 5 seconds the picture completely disappears and the screen goes black, once the transmitter shuts off about 10 seconds later the picture shows up on the tv screen. I am unsure HOW the RF signal from my radios are getting into the Cable TV Box and/or Television and am out of ideas for a solution to isolate them from each other. Anyone else have this problem, any suggestions?
P.S. Probably don't help but attached photos show the Cable TV Boxes I am using.
Thank you,
Doug
I am getting severe interference with my cable tv box and/or television from my own two way radio transmissions. I have a radio in the house at the other end of the house, the antenna is on the roof of the house, and I also have a radio in my car that is in the garage downstairs below the tv being affected. Frequencies used range from 144 MHz to 450 MHz, tx power ranges from 2 watts to 45 watts. I have done everything that I can think of to get it to stop, but no luck. I can only assume poor filtering or shielding in the cable tv box or tv itself. When transmitting the picture on the tv breaks up so bad it distorts the picture and if transmitting for more than about 3 to 5 seconds the picture completely disappears and the screen goes black, once the transmitter shuts off about 10 seconds later the picture shows up on the tv screen. I am unsure HOW the RF signal from my radios are getting into the Cable TV Box and/or Television and am out of ideas for a solution to isolate them from each other. Anyone else have this problem, any suggestions?
P.S. Probably don't help but attached photos show the Cable TV Boxes I am using.
Thank you,
Doug
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