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NO!? You need the *5.5 x 2.1mm* plug.? The 2.5mm version gives intermittent contact. The long one, at least 12mm. Chris, G5CTH

Hi I found and using this 5/9/12 (15/20(for the PC) if the PD of the Power Bank Supports) 9 and 12 volts are great for the QDX, QMX and QMX+ Buy the one with *5.5 x 2.5mm

Hi If you connect QCX to GPS, you can (it will) precisely adjust frequency of the QCX for the TXCO This was implemented for WSPR on QCX If you leave the GPS on, you'll have an atomic clock/frequency

True Bruce, I was going by the marking on the QRPLabs TCXO, "KXO-84 RG" which matches the Geyer part. Unfortunately digital stepped adjustment TCXOs also do not state what they are. 73 Alan

Did you remember the loop between the bnc and the output from the swr bridge ?

Alan. ?The distinctive feature of the QRP labs device is old style analogue adjustment )as random digital steps don’t play well with some digimodes The data sheet you posted makes no mention …

Wow, I'm impressed! :)

Rick, Wolfgang was showing us his QMX, no + :-) Perhaps left for those with good soldering skills and steady hands. 73 Alan G4ZFQ

Pierre, It looks like this one https://www.geyer-electronic.shop/downloads/products/1297509/12.97509.pdf 73 Alan G4ZFQ

I was trying out WSPR with my high band QMX with settings as depicted in the instruction manual. I had my QLG2 attached and working with the green light blinking. I had the transmit set to 4 after the

Actually I thought I read that the QMX+ already used the stm32 RTC output ?

Just to satisfy my curiosity : which TCXO chip comes with the QCX+ TCXO option? 73 - Pierre - FK8IH

Most all recent USB-C power banks support PD, so it is likely to work. I would get a smaller/lighter one.? I have two small 10,000mAh Ankers, and each is good for several hours of QMX operation.

Just retried a change of tcxo frequency down by 6 Hz. As before it did not work...audio connectivity was lost and had to do a master reset to get it back. Very annoying as have to customise? my rig

I finished assembling my QMX+ (including a battery mod) and finally got the chance to test it.? In the diagnostics everything appears to check out, until I press P.? At that point the SMPS bias

Fat fingers did it again… Accidently turned on the Two Tone Input. ?Changing to Ext Mic fixed my problem! Sorry for wasting a little bandwidth…. See you QMX SSB! Mike

Hi Bill, No not the mic. The QMX+ is transmitting the tone to a nearby receiver. ?Not a feedback issue. ?I cannot hear any voice at all. Mike

Ah yes, thanks Pierre. Very enlightening. [email protected]> wrote:

Mike, When you press PTT, You hear a squeal *FROM THE MIC*??? And yet you're getting good transmissions?? Something about that doesn't make sense to me. Can you explain the issue in

Hi All, Upon PPT on the mic sends out a high pitch tone(squealing like a pig in the midwest!)…I am getting good SSB voice transmissions on both my high and low band QMXs’. ?So pretty sure the mic