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SmartSDR v3.8.20 and the SmartSDR v3.8.20 Release Notes
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microphone bias not working

Stan VA7NF
Stan VA7NF Member ✭✭✭
edited November 2019 in SmartSDR for Windows
6700 V3.1.8 using rear balanced input with XLR or phono input does not supply the microphone bias.  Mic and XLR cables work fine with my own preamp supplying the bias.  I have measured voltages between all XLR leads with no change between BIAS ON or OFF

Comments

  • Brian Denley KB1VBF
    Brian Denley KB1VBF Member ✭✭
    edited November 2019
    What is the mic?  Make sure there isn’t a blocking cap in the circuit.
  • Craig_KØCF
    Craig_KØCF Member ✭✭✭
    edited October 2019
  • Stan VA7NF
    Stan VA7NF Member ✭✭✭
    edited October 2019
  • Mike-VA3MW
    Mike-VA3MW Administrator, FlexRadio Employee, Community Manager, Super Elmer, Moderator admin
    edited October 2019
    Stan Can you measure with a multimeter to see if there is voltage on the mic connector? Mike.
  • Stan VA7NF
    Stan VA7NF Member ✭✭✭
    edited October 2019
  • Mike-VA3MW
    Mike-VA3MW Administrator, FlexRadio Employee, Community Manager, Super Elmer, Moderator admin
    edited October 2019
    Hi Stan

    My fault, sorry, I missed that and I should have known better.  Even worse, I actually knew that.

    Thanks for calling me out on it.

    Mike

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