Yes, I am desperate:
I am having big problems with groundloop hum through the cable antenna connection of my tuner. It is so bad that it is impossible to listen to the radio. I tried connecting the antenna ground to earth ground, this helped a little but not nearly enough.
does anybody know how to solve this?
I am having big problems with groundloop hum through the cable antenna connection of my tuner. It is so bad that it is impossible to listen to the radio. I tried connecting the antenna ground to earth ground, this helped a little but not nearly enough.
does anybody know how to solve this?
Peter,
You need an isolation transformer that breaks your ground connection to your antenna. Several companies make them. (Tributaries is one)
An easy way to make one is use two 75ohm to 300ohm converters (impedence matching transformers) and hooh up the 300 ohm leads togther. There will be some insertion loss, but a quick solution none the less.
Regards,
Jam
You need an isolation transformer that breaks your ground connection to your antenna. Several companies make them. (Tributaries is one)
An easy way to make one is use two 75ohm to 300ohm converters (impedence matching transformers) and hooh up the 300 ohm leads togther. There will be some insertion loss, but a quick solution none the less.
Regards,
Jam
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