First off, I know hunting down mobile RFI is a starting down a dubious road. I am trying to eliminate as much as I can.
The problem: In mine and others' cars when we plug in anything into the cigarette lighter (phone charger, GPS, you name it) I get varying degrees of desense, hanging squelch and interference on the railroad band (160.215-161.565 mHz). When those peripherals are unplugged, the problem goes away, but sometimes that is not an option. Is there some kind of preselector or filter for scanners, amateur or commercial gear that will filter out that interference? What bothers me the most is the significant desense I get on my mobile radio when I simply plug in a phone charger or Garmin GPS.
The problem: In mine and others' cars when we plug in anything into the cigarette lighter (phone charger, GPS, you name it) I get varying degrees of desense, hanging squelch and interference on the railroad band (160.215-161.565 mHz). When those peripherals are unplugged, the problem goes away, but sometimes that is not an option. Is there some kind of preselector or filter for scanners, amateur or commercial gear that will filter out that interference? What bothers me the most is the significant desense I get on my mobile radio when I simply plug in a phone charger or Garmin GPS.
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