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SmartSDR v3.9.19 and the SmartSDR v3.9.19 Release Notes
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MD-200A8X Microphone LED
WQ2H - Jim Poulette
Member
The FHM-2 mic is clearly a quality mic, but I had become really accustomed to the feel and that crazy little red LED on the MD-200A8X (Yaesu) that indicated that the radio was keyed. I've had the mic a few years and hated even the thought of parting with it.
Instead of modifying the Flex 8-pin Foster adapter I just got - I decided to build another one, this time with a +5Vdc connection between (Foster) pin 2 (+5V) and pin 5 (GND). The little red light is now back in action. I was surprised that the mics sounded very similar with recording tests when trying to build a new profile - again a testament to the fidelity of the FHM-2. The MD-200 required slightly more Tx gain to achieve the same level - but not much.
I suspect modifying the stock Flex cable assembly (ACC-8P-TRS) to simply add a 2-conductor +5V entry into the back shell would be pretty simple for the average user.
73 Jim, WQ2H
Instead of modifying the Flex 8-pin Foster adapter I just got - I decided to build another one, this time with a +5Vdc connection between (Foster) pin 2 (+5V) and pin 5 (GND). The little red light is now back in action. I was surprised that the mics sounded very similar with recording tests when trying to build a new profile - again a testament to the fidelity of the FHM-2. The MD-200 required slightly more Tx gain to achieve the same level - but not much.
I suspect modifying the stock Flex cable assembly (ACC-8P-TRS) to simply add a 2-conductor +5V entry into the back shell would be pretty simple for the average user.
73 Jim, WQ2H
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