Help!! Low level hum from FM cable sgnl

Per J-k a hum-bucker is probably the best answer. But I did find a cheaper solution for my rig. I happened to have on-hand a car-audio isolation transformer. Actually this is two transformers (left & right channels) in 1 package, available from a car-audio shop. Run the audio coax's thru them to your preamps' inputs. These coupling transformers are probably not the nicest thing for your FM audio signal, especially a Dynalab (I have one too) so the hum-bucker is the best solution.

J_k is right. Try an in-line "cable ground breaker", but not from your hi-end A/V store if they charge $50. It will only cost you $15 from a mid-fi store that deals with A/V installations.

I agree with the previous posts about less costly solutions than $50 (Sonance RFGI1)... There are versions as cheap as $8, but there could also be trade-offs with the signal quality. I got tired of trying a box for $8, another for $15, and then I did an audition of this one and it COMPLETELY fixed my problems (I had really loud HUMMMMMMM). I run a 65" HDTV capable TV, and even a minor problem with a cable, connection or signal will drive this thing nuts, The Sonance RFGI1 is a high end component, which also removed hum bars and some other rudeness that the CATV company provides me. You can experiment with all of the above suggestions, and they may work -- If you have more money than patience, or equipment that is finicky of its RF input, try the Sonance. I forgot to mention in my previous post, the monster 1200 and other devices like it have to tie the cable ground to the wall ground to comply with UL device manufacturing rules (all exposed metal must be ground potential). Good luck!!

Thanks for the help. So, I should get the Sonance RFG1 or comparable device? How much does the Sonance cost and where can I get one? Honestly I'd like to spend as little a possible. If anyone has other brand and model recommendations that would be great. Carter

Check out the sonance website for details. If you search altavista for RFGI1 it will only find sonance. Otherwise call your local AV dealers. You may not need the sonance quality for a tuner... My HDTV is extremely picky of cables, and anything in the signal path, hence why I ended up with sonance.