Help? Can somebody smarter than me say if these CAN work together?
The Rugged Radio RA-200 (aviation) headset specs...
RA200 General Aviation Pilot Headset The best aviation value and performaing headset [RA200] - $105.00 : Rugged Radios: Headsets, Intercoms, 2-Way Racing Radios and Communication for Motorcycles, Offroad, Circle Track, Aviation, Drag Racing, NASCAR,
...match the Pro Intercom Belt Pack (BP-1) electret condenser mic specs...
http://prointercomllc.com/wp-content/uploads/2013/12/Ins_BP1_PRO.pdf
Headphones work/sound great! Not the mic.
Measured 1.78K ohms across the mic.
BP-1 provides .49VDC, .39V w/mic connected. Is voltage high enough?
Thnx in advance. Tony.
The Rugged Radio RA-200 (aviation) headset specs...
RA200 General Aviation Pilot Headset The best aviation value and performaing headset [RA200] - $105.00 : Rugged Radios: Headsets, Intercoms, 2-Way Racing Radios and Communication for Motorcycles, Offroad, Circle Track, Aviation, Drag Racing, NASCAR,
...match the Pro Intercom Belt Pack (BP-1) electret condenser mic specs...
http://prointercomllc.com/wp-content/uploads/2013/12/Ins_BP1_PRO.pdf
Headphones work/sound great! Not the mic.
Measured 1.78K ohms across the mic.
BP-1 provides .49VDC, .39V w/mic connected. Is voltage high enough?
Thnx in advance. Tony.
Hi Tony
You just need to build ( rather than buy ) a single transistor electret mic stage
Colin Mitchell many years ago designed a range of small FM Transmitters that
featured a self biasing transistor perfect for electret mics. a wee bit of emitter degeneration
using a small resistor like 100 ohms off the emitter to ground might assist, but published as is the
circuit is great for electret mics and works well see the 4th diagram at Electret mic :
Basic Electronics 1A
Hope this helps / Chris
You just need to build ( rather than buy ) a single transistor electret mic stage
Colin Mitchell many years ago designed a range of small FM Transmitters that
featured a self biasing transistor perfect for electret mics. a wee bit of emitter degeneration
using a small resistor like 100 ohms off the emitter to ground might assist, but published as is the
circuit is great for electret mics and works well see the 4th diagram at Electret mic :
Basic Electronics 1A
Hope this helps / Chris
I'm not afraid to build things. You believe the BP-1's electret condenser circuitry isn't compatible by itself?
I've come across bias voltages as low as 1.5 VDC, but barely half a volt seems awfully low to me. Are you sure the BP-1 is set to electret?
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