I,ve tried 3 type,s of antennas and mounts on my Pontic Aztek van . = No matter what I,ve tried on HF I get into the 2 rear speakers. I = followed the manufacturers installation spec,s for the radio.
Imagine you have already tried it but what about toroids in the speaker leads and bypass caps at the speaker terminals? Is the Aztec metal or plastic? If it is plastic you may be directly exciting th
Start with common-mode RF chokes on your RF transmission line, both at the antenna end and at the transceiver end. See below for details. Also put RF chokes on all other cables connected to your tran
If the 706 body is up front, try running the RF coax outside the auto body under the frame to the rear antenna. Is the interference coming from the 706 cabling or from antenna radiation? A quick test