Radio > Transceivers

Yaesu FT-2900 locked up -SOLUTION

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when the starter quits having current put to it, the voltage reverses and the voltage spikes, (and inductor likes to keep constant current)
it can reverse direction a few times before it dissipates (like a bell ringing)
this can arc across the solenoid switch and get back into the electrical system.
the battery will crush most of this, but voltage spikes can get through form time to time.
generally I build everything for automotive use to deal with 45V spikes, but 40V is likely ok

My radio is always off to start with. Any time the truck turns off the radio also turns off that way when I start the truck the radio is not on. I have it on the switch.


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