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Andrew, Welcome to the wonderful world of CW! I've just jumped back in this year after a 20+ year hiatus. The QMX (mine's not a +) is a fabulous CW machine. Good job getting your voltage at 12v or

Success (so far). I replaced IC503 and now have a nice 5v TTL level signal out on both sides. BS170s not installed yet. Waveform attached. This was on 20m. I tried 6m and it was bit lower amplitude at

I have been watching patiently as my position in the wait list lowered from 800+ down to the 40s only to receive an email today from Hans advising the unit has shipped.? During that time, been

I've put the PSU Test Process information into the wiki where it should be more accessible.? I changed it to say that the linear? VDD may be between 3.0 and 3.3V. Comments about the voltage as read

Interesting; thanks for bringing this issue up. The issue manifested itself in my shack with Log4OM logging software. The CAT control is working, but the frequency fields for a new qso in Log4OM

LIN_REG_EN is active high, not active low. At start up it is pulled high by R101, the processor pulls it low to disable the linear regulator and switch to the SMPS. This will be correct while the

It makes no sense to me, but following David's advice, I used the command line amixer cset numid=3 100% from the command line and now it works. ?\_(ツ)_/? . Thanks for the

Hi Mark - so I tried the alsamixer and it shows the QDX as having a zero setting and I am unable to adjust it: Think you are right on the money here, just don't know what to do

I'm using 8 Ikea NiMH 2500 mAh batteries with mine. I just exceed the recommended 5W output on 30 metres when the batteries are fully charged, but I don't run data modes, so I'm not too worried about

I have been using a battery backup for Wi-Fi routers. Something similar to this - Mini UPS Battery Backup 37Wh Uninterruptible Power Supply for Router, Modem, Security Camera with Input 9V DC Output

For those that chose to go down the 9v pathway - I’m curious what energy source solutions you are using for field/POTA/SOTA type operations.

Very odd behaviour... How does it behave with earlier firmware installed on the radio? Ronan MM0IVR

Look into TN? 0110? (Microchip N channel mosfet)? type 92 plastic case? ?from? Mouser or? digikey.? Probably hard to find on ebay.? ?Check pinout - different. These have diff capacit.?

I've got AGC's fitted to all my QCX's, 3 minis and 2 classics. They're pretty much essential. As for the TCXO, my minis have them fitted although they've never really been used for WSPR where that

Need to try that !

In the case of QMX+ LPFs this could be even more unpleasant situation: 3.5 x 5 = 17.5 3.5 x 7 = 24.5 7.0 x 5 = 35.0 7.0 x 7 = 49.0 I hope this will be solved in due time. -- 73 Bojan S53DZ

Hi, there is for me a really annoying issue with the SWR and LPF scans.? It is connected with the DISABLE/ENABLE band settings and the SWR scans.? When all the bands are not enabled than the SWR

Hi Ludwig Attached is a file with the pix inserted.? The file names explain which each is.? I hope they're helpful. Regards Greg

There has been a lot of history of? ?disgusting people buying? 2n7000 and relabelling them as BS170.? The pin out is different. Most of such people live in? ?PRC others in Vietnam.... as

I have to admit that it is only a few dollars more. Who knows, maybe I will want to go digital. If anything it will make it more desirable if I have to liquidate my radios. The main reason for asking