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hi, just setting up my new and very handy GoBox, a beauty case by UGREEN, approx. L22 x W14 x H8 cm, with hand strap and carabiner hook. Equipment inside is the QMX, a talentcell powerbank, noname

Pierre, The BPF sweep problem on 20M on High band QDXs has been there for most people, and L12 changes to fix it haven't been established that I've seen. Doesn't seem to be much you can do about it,

It looks like a Phoenix Transmatch? https://qrper.com/2022/03/richard-recommends-the-qrp-pocket-transmatch/

Just use the Tune SWR feature.? It (by default) uses 1/4 power, which is low enough that even very high SWR won't cause damage.? And SWR protection is automatically disabled in this mode.

newest go-box with QMX, Talentcell powerbank, noname speaker and tiny paddle by N6ARA, completly fits in a beauty case by UGREEN.... only a portable 8m pole (70cm packed) and some coax as extra

Ludwig Thanks for your coment, with sub-boards removed, I have 6.6k ohm gnd to Vcc and 2.3k ohm gnd to Vdd. Do you think this indicates something broken on the main board? Dan

Perhaps, ill-advisedly, I turn off my SWR protection long enough to tune, then turn it back on. -- 73 Michael N6QP Up in Thin R

Hi all, while I am eagerly awaiting the stable release of the SSB update (not brave enough for the beta) I am trying to figure the microphone situation. I am absolute newbie both in amateur radio and

we can just see Ed 14.058.5, on the 7300 scope and copy is 55n from OR. ?can't hear any others.

I am using my new QMX+ with the HardRock-50+ (HR-50+) amplifier with its integrated ATU. The ATU requires a bit of RF energy to trigger the tuning procedure.? So, one pushes the Tune button on the

it worked but now a new bug where I don't know where to look. QMX+ is selected in WSJTX input and the PC and decoding is ok but no transmit and when I try to transmit I get? a rig control

Hi Roger, Looks like a nice setup. I am wondering what tuner you are using in the photo? 73, Ken K9ZI

Okay I think it was my antenna, I haven't even weirder problem now. As soon as I start transmitting after around 3 seconds, the whole qmx just turns off [email protected]> wrote:

Chris, first half of tests was done with smpsu boards removed from main board. Second part, pressing the power switch, was re-assembled.

My antenna system is rather compromised at the moment, so I'm not sure whether I will be heard, but I will try! Thanks for organizing these, Ed. Greg, N1TR

I finally had enough with the ESD upsets when touching the knobs.? On the last occasion I lost my memory settings due to to a reset.? ?Today I worked out a solution.? I cut a piece of copper foil

Dan, never ever run a QMX with SMPS boards if the off line tests are not ok!!! It looks like a short at VDD (or a faulty PCB#2). Please remove all subboards and check resistance at the mainboard

Are your tests with the power supply boards unplugged?? Not connected to anything?? If so then quite a lot of both boards seem to be bad.? They are both shorted to ground enough that the current

I am interested and tried to send another email. The first one I sent bounced. Not sure if it is on your end or mine. I did get your email and attempted to reply.

OK folks, did some measurements a few minutes ago and have interesting results. But first, to answer a couple questions: The power supply is not current limited, and the voltage is a pretty solid