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IR working but no RF. Antenna amplifier problem?

quarryman

Member
Joined
Jul 10, 2012
Messages
38
Car
W202 C180
I'm having a problem where the fob to open the car seems to have very poor range. I need to point it directly into the car. This would indicate the IR is working but not the RF. (I have a smart key that allows RF and IR control).



I located the antenna amp. It seems to be getting 12v.

Disconnected the coax and radio reception vanished.

Disconnected the power and the radio seemed fine. Obviously the amplification makes no difference to the radio, it just needs to be connected to the antenna?

Should I replace the unit or could the problem be elsewhere?
 

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