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Kevin, specifically check soldering and continuity and look for shorts (with a meter) on the pins connecting the front panel to the main board. You want the pins that carry LCD lines D0-D3. I had the

There's been talk of checking the display's data lines. The older firmware only used 3 bits, where the new uses 4. So check for shorts between the data lines. Also check on the mother board, people

Firmware, not LCD -- 73, Dan? NM3A

Check your pin soldering to the LCD. The newer LCDs use 8 pin addresses rather than 4 pin. -- 73, Dan? NM3A

Kevin, V19 used 4 bits (io lines) v23 uses 8 lines to communicate with the display. Search the forum for details but it sounds like there is an issue with the comms from the main board to the display

Hi Kevin - The first thing I would do is write down all of your settings in _19, re-install _23, power-off, power-back on, open a PuTTY session, and do a factory reset. Then go back into PuTTY and

Found these at a better price on eBay https://www.ebay.com/itm/305358273235 Amazon was going to cost me about NZ$80 including a large freight cost to buy 2. This order from eBay cost me NZ$25

Hi everyone. My QMX is a Rev4 from late May 2024. I just upgraded from firmware _19 to _23 and the QMX acts as though the language has changed on the display. The language is not recognizable to me,

The Hardrock 50 seems like a perfect match for 5-ish watt radios.? The available built-in antenna tuner is very effective and can be used with the amplifier or alone. 73, Don N2VGU

Hi All If you are worried about fingers getting cooked. Get yourself a laser thermometer they look a bit like a pistol. You squeeze the trigger and point the laser dot at the device and read the

Thanks Roger

A 56uH will work fine. Philip G7JUR

Andy As there are beginners here I would like to say that sticking your finger on anything with substantial RF power going through it will not just burn but cook it.? ?My 'best' RF burn took about

Hi all: I broke L504 during my QMX+ build. Is the value of 47uH critical, or can I substitute say 56uH without a problem? I can get closer by paralleling two 82uH. Would that be ok? If I had to, I

Could be that my cheap'n'cheerful Chinese SWR bridge isn't especially accurate down at the low end, I suppose. (Or my series-pass regulator isn't doing what I think it is when transmitting.) I'll run

Alas, in its sandwiched arrangement in its nifty anodized case. I find it hard to access the transistors to assess their temperature. I've been hoping others have explored this space before, and I

I have got an old school Tokyo Hy-Power HL-50B.? Awesome thing and with a PTT cable works brilliantly.? More pricey than something like the PA50 but a quality linear.? Can be had for sensible money

microPA50+ works fine with QMX as long as you use the PTT cable and you have an adjustable power supply for the QMX to set the output power. The amp is a little touchy on input power and it varies

What is the best portable linear amp I can get for the QMX in digital mode? I have looked at the MicroPa50 Plus and the MX-P50M and a couple others less known.? Has anyone in this group had any

Hi Hans, I've just put the new firmware through its paces and it seems your Jedi powers are still strong! The voltage display seems to be updating properly no matter what the decoder is