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Make sure you set ssb input to be 'ext. mic' rather than usb.

Williyam, Mic gain is only relevant for microphone, not for audio via USB. If you modulate in SSB mode using a signal with no constant envelope, the mean output power would be lower than in CW mode.

Hi Jonas, I guess the zener D108 limits VCC to 5.6 V. Yes. PWM (pulse width modulation) is an output and ADC_5V an input. If VCC is to high and PWM from the controller is 0 I see two possible reason:

Cool- glad I could help.? Some of my band's volumes are still louder than others,? I still need to make adjustments.? But I'm glad you're hearing and being heard. BTW- totally different topic- I

Hi J-J Brasse Many thanks for that info. 73 CT4AJ

Lawrence. I assume that you used VOX as there is not PTT on this headset.?? -- 73s, Glen, WB4KTF, Austin, TX

I’ll bet the audio is brilliant! Dave

This is a definite yes, as I've already done it. I use a Neumann U87 with my main station rig. It's connected to a Symetrix channel strip (phantom power, mic pre, de-esser, EQ, compression, etc.) the

I wouldn't think you would need to throw a raspberry pi in the mix... The mix better already have one :p HL2 cannot be used with out a computer already at hand. Both really great radios, but I'd watch

no band change

Continuing my own thread :-) Troubleshooting of my SSB calibration casualty QMX+ continues. After lowering the external PSU voltage limit a little bit furher to 7v and lowering the current limit to

Ditto! A short tutorial would be very helpful, including physical connectivity and what needs to be running where (read: panadapter newbie alert!) Thanks in advance. -- 72 de N4REE, Bob Easton - QRP

Hello again. Yes in CW Mode with microphone plugged in I can key the rig QMX+ to check SWR I can use USB for digital PSK which gives me a bit lower output. I am sure this lower output is due to

Oh, wait, sorry, I misinterpreted what you were writing. If the mic is plugged in, the QMX doesn't change modes automatically as far as I can tell. I use the PTT key to check my SWR sometimes, but I

It works OK for SSB, though? I would think that a closed circuit is a closed circuit no matter where the switch is in it. -- 73, Dan - W2DLC

Yes that is the way it is wired Sleeve to Tip is PTT and Sleeve to Ring is Microphone. Tried that CW mode setting is Tip for Keying still no keying for SSB.

Socketed BS170's. I can only vouch for some 6 x QRP LABS Ultimate TX's as used for 10-15 years. I used turned pin sockets on all the PA's. Results - ZERO failures due to sockets. The only failures I

Bruce, There a few things that I think work to mitigate the concern of the leads coming out of the socket, besides the significant force of friction because of the tight fit of the lead in the socket.

I have an unbuilt Rev 1 QMX kit, that I? am finally seeing time ahead to build it. But am wondering, would I be better off getting a Rev 3 kit. Are there significant upgrades or differences in the

You probably need to change the straight key plug setting to "tip." -- 73, Dan - W2DLC