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SmartSDR v3.7.4 and the SmartSDR v3.7.4 Release Notes | SmartSDR v2.12.1 and the SmartSDR v2.12.1 Release Notes
SmartSDR v1.12.1 and the SmartSDR v1.12.1 Release Notes
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SmartSDR v3.7.4 and the SmartSDR v3.7.4 Release Notes | SmartSDR v2.12.1 and the SmartSDR v2.12.1 Release Notes
SmartSDR v1.12.1 and the SmartSDR v1.12.1 Release Notes
Power Genius XL Utility v3.8.8 and the Power Genius XL Release Notes v3.8.8
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Mic bias selection
Options
Stewart Rolfe
Member
On my Flex 6300 there is 5v on pin 2 of the front mic connector irrespective of whether the 'BIAS' button on the Transmit is window is selected or not - is this normal?
0
Answers
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Yes, Pin 2 is +5 volts, bias turns voltage on pin 1. 73 s Jim K4JAF0
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Posting this brought up thread on the SSDR category which appears to answer this...sorry for the qrm - must check the frequency before transmitting.
73,
Stew, GW0ETF0 -
Actually, the microphone hot lead is on pin 8, according to other posts from Gerald and Tim, W4TME, not pin 1. The bias of 2.97 VDC would thus be applied to pin 8 when activated via the GUI.0
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Yes pin 8 is correct Mic pin. Yaesu (Flex) uses pin 8 not 1.
0
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