Join Date: Apr 2013
Location: Puget Sound, WA
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I'm having the same difficulty in your very similar situation... I could not foresee spending a lot of money for ASTC modulators. tuners or filters.
I have several Over The Air channels that I flip through frequently, some are not even shown on paid subscription. I am trying integrate the channels for my digital & analog TVs, DVRs, and security cams.
I have purchased two signal combiners. One each for channel 3 and 4. I also have single, double, and quad agile UHF modulators.
I am working on cutting off my ties with subscription services. I only down to a couple of subscribed channels left one modulated on 4 other on 64. I am not willing to rent more boxes to get a couple more channels or have a box for each TV. Just too much. 10-20 dollars a box per month for each tuner or TV is not realistic. This adds a lot of money per month, worst to even mention I could no longer connect to the cable without having their box to tune to a channel.
I've used RabbitEars to help get a good idea of local stations, and is used widely.
My difficulty is modulating to a free channel and not interfering with a neighboring channel. For the most part my modulated channels are receiving interference. I bought another modulator thinking it may be going bad, but it is not the case.
When I add a notch/pass filter in the system it clears up the signal, but I lose my HDTV broadcasts over several channels.
I tried and attenuated the modulator with a variable attenuator without success to clear channels.
On a couple TVs that have newer tuners, when I switch to cable for my antenna, I lose half my digital programming, even after an variable amplified signal. The local modulated channels are still not clear.
With a few modulators, I would like to keep my modulated channels sequenced, but it may not be realistic.
58, 60, 62, 64 & 61, 63