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Karl, previously you wrote that " The signal is also present on pins 1&2 IC408 but not on pins 3,4, 12 thru 15" Has this changed?? This is proper switching - the signal being seen on both parts of

I seem to remember reading a post that when powered with 9V, QMX+ will give a steady 5W output on all bands, but I cannot find that message now. Is this true or is it my memory playing a game on

Hello Igor, some of your screens show input voltage of 12.8v. ?Others show 11.8. ?Is that what you see there? ?Is the supply voltage being reported inconsistently or are you varying it? also the

Just got mine from Erick for my QMX. Used a tiny hot glue gun spot to add just a touch length to button to make it easier to use. Thankyou @Erik Larson, The blue is nice, good choice.

Thanks, Stan. Will try.

It may work to turn down the agc threshold to about s6 or even lower.? My agc didn't often activate when I used the default threshold. I had the volume turned up to hear quiet cw signals, and so my

No, you misunderstand.? The power and SWR indicators should work fine in DIGI mode.? It is only the agc and s-meter that are not implemented. If your power and SWR indicators are not working,

A few more data points w/ power supply connected: Supply Voltage | TX Voltage | TX Power | SWR | 10.8 V ?| 9.4 V | 1.9 W | 1.18 | 11.8 V ?| 10.2 V | 2.1 W | 1.18 | 12.8 V | 11.0 V | 2.3 W | 1.17 |

Stan, you must be in Houston, because we have a problem! No matter the freq the signal is present on all L40X coils....there is a whole lot of switchin' not goin' on! -- 73 Karl KI4ZUQ

Hans regularly reads messages posted here, and puts the bugs on his list.? As far as I know such a list is not published.

I have a QMX (80-20) for 12 V that I built last year. It worked fine on FD, and was used occasionally since. A few weeks ago I was running it into a dummy load. Controlled by fldigi. Power was a

Take this one, it's the

?Hi Alan, I measured the voltage on the HC6 socket and found negative .1 volts on one side and zero on the other. All the sockets measure the same negative voltage in the instrument. This obviously

?Hi Alan, I measured the voltage on the HC6 socket and found negative .1 volts on one side and zero on the other. All the sockets measure the same negative voltage in the instrument. This obviously

Hi Chris, Stan had mentioned about Vbat but I didn’t know where to look. The QMX+ was assembled and the GPS module came already installed. Vdd is linked to VBat which I assume is the pre-assembled

Hi everyone, I built the QMX kit configured for 12V operation (the kit was ordered on 13/04/2024 ) , and while everything appears to be functioning correctly, I'm only seeing about 2W of output power

The controller was not powering up from the beginning only when I bypassed the q102 it started. Than my idea was (thanks Stan :)) to trace why I need to do it and found the the micro was probably

Everything else seems to work, but no AGC. As a result, there is distortion on loud CW sigs. Yes, it is enabled in the Audio menu. 027 firmware. Any ideas would be appreciated. Thanks, Dick, K5AND

Alas, the Radtel Speaker-Mic does not appear to be available in the USA from Amazon. 73, Dave K3DX

Damon, I wouldn't enjoy the RX. I wouldn't switch on the QMX in this state. Maybe voltage at IC204 is wrong because of IC503 died together with the PA. Best way is to remove IC503 and check output of