I use some active GPS aerials. There's an amplifier inside them, supplied by 3 V that is put onto the aerial cable by the receivers. I've used these quite a lot.
I found that none of the receivers would work with one particular aerial, and nearby receivers wouldn't work when this aerial was powered up. It had basically become an oscillator and it was transmitting at GPS frequencies.
Has anyone got any ideas how it could fail in such a way that this oscillation happened?
I found that none of the receivers would work with one particular aerial, and nearby receivers wouldn't work when this aerial was powered up. It had basically become an oscillator and it was transmitting at GPS frequencies.
Has anyone got any ideas how it could fail in such a way that this oscillation happened?