Okay so my next task is a switched break out box (and that means what?) There is a Motorola XTL5000 installed in the bike and I need to be able to switch the headset between the UHF radio and the PA system.
I’ve been doing some research on how best to switch the audio signals (relays, BJT transistors, MOSFET, JFET) and now I have a migraine.
The four signals are audio left, audio right, mic+ and GND; this means that relays are out because they generate too much noise the distortion blocks the signals, so I was gonna go and grab some BJT transistors (4X NPN and 4X PNP) that would be hooked up to a DPDT switch supplying V+ On pole one and NEG on pole two.
Can I get some feedback please on what folks think about using BJT transistors? While having my oscilloscope plugged in I did see spikes as high as 10AMPS or more when loud noises were made through the mic but talking loudly or normally saw no real deviations.
I’ve been doing some research on how best to switch the audio signals (relays, BJT transistors, MOSFET, JFET) and now I have a migraine.
The four signals are audio left, audio right, mic+ and GND; this means that relays are out because they generate too much noise the distortion blocks the signals, so I was gonna go and grab some BJT transistors (4X NPN and 4X PNP) that would be hooked up to a DPDT switch supplying V+ On pole one and NEG on pole two.
Can I get some feedback please on what folks think about using BJT transistors? While having my oscilloscope plugged in I did see spikes as high as 10AMPS or more when loud noises were made through the mic but talking loudly or normally saw no real deviations.