bhaner
Active Member
Anyone else running HAM radios in a JKU notice RF interference when the key is on?
Seems to mostly be on the 2 meter band.
If I turn the key off it goes away.
Turn the key to ACC or RUN and it comes back. Still there with the engine running.
I can't trace it to anything like LED lights or a bad component.
I picked up a Nano VNA antenna analyzer and can't seem to find anything wrong there.
Does it with the antenna installed or removed. The static also goes away when I remove the coax from the radio.
Feed power doesn't seem to change it. I even ran on an external battery with no change.
Currently the radio is installed under the drivers seat. The antenna wire travels under the floor mat and carpet to the passenger side. It then follows the side of the wheel well all the way back to the tailgate. It enters the tailgate with all the other wires and exits out the hole on the right of the gate vent.
Is there something in the back of the Jeep that could cause interference when the key is on?
Seems to mostly be on the 2 meter band.
If I turn the key off it goes away.
Turn the key to ACC or RUN and it comes back. Still there with the engine running.
I can't trace it to anything like LED lights or a bad component.
I picked up a Nano VNA antenna analyzer and can't seem to find anything wrong there.
Does it with the antenna installed or removed. The static also goes away when I remove the coax from the radio.
Feed power doesn't seem to change it. I even ran on an external battery with no change.
Currently the radio is installed under the drivers seat. The antenna wire travels under the floor mat and carpet to the passenger side. It then follows the side of the wheel well all the way back to the tailgate. It enters the tailgate with all the other wires and exits out the hole on the right of the gate vent.
Is there something in the back of the Jeep that could cause interference when the key is on?