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yep sorry the talet cell operates as you specified. the one i have can either charge with a 12.6v charger, or a usbc cable.? i have a couple other regulated batteries that i can choose 12v out.? and

My QMX arrived last week. Since I operate primarily digital, ( but seriously working on honing my CW skills) I was able to get several 'DIGI' mode programs to work. Not so easy with the SSB-required

Here's the complete thread: /g/QRPLabs/topic/112783679 ( /g/QRPLabs/topic/112783679#msg145840 ) You can see all recent messages to the forum with a web browser here:

Randy, you would find some of this information when reading Hans papers. And did you check the Wiki? I think there is such a document already, but not complete now. 73 Ludwig

I guess that I missed the start of this thread…… where is the carrot info? John KK4ITX ?Each mistake is a learning opportunity.?

Stan, your two posts here and Jerry Gaffke's would make an excellent QMX* SSB Setup and Troubleshooting Wiki entry for the group! Might save you having to restate it at some point. :-) -- Randy, N4OPI

It won't,, not to worry about that. 73,Don N2VGU

It's not designed for this kind of environment. If you want to do mobile HF you'd be better off using a rig purpose-built for mobile HF.

It's noisy on the road, so you will need a good audio amp. Also, you tend to bounce around a lot, at least on my town's potholed roads, so you should think of ways to ruggedize the rig, or give it a

Here are a few things to try to figure out what's happening with your SSB transmission, based on my trials: 1) Make sure you have a proper 'listening/evaluation' setup.? This is quite important.?

Your PA will behave differently when driven by less than 1 milliwatt from the network/antenna analyzer than it will when it is being driven by 3 to 5 watts from the QMX. The PA current will be

Good Morning! I just finished building a QMX 60-15M kit that was shipped 2-April-2025, and found no CW output on 20 and 30M.? Here is what I've measured and found: * The gate voltage on Q509 (LPF 0

Very interesting. First notes: your image and audio sweeps look normal - the image non-rejection is a known design issue, correlated with the I/Q issue. Your 160 BPF sweep looks better, but still far

Hi, It has 5W, the FT-817ND has 5 W too and works well. So, think by yourself. With amp is every trx stronger/louder. Tuner is for correcting the antenna, not the QMX. About 1280km with QMX and EFHW

Thanks! I will look into this too - I have all the instruments I need, and I think I know what you mean :)

Thanks, this is very useful information - I will return to T507 and check enamel/soldering or other errors. I use a big tip and 380 celcius but there's always a chance that something is not up to

Arne, Look at the schematic around T507 on the last page. If the QMX shows a roughly correct power out reading when driving a 50 ohm dummy load, that means that ADC_FWD has a proper voltage on it for

Arne, I know you already checked T507 connections. Your symptoms indicate that most likely your processor is not detecting any reflected power from the SWR bridge, whose main component is T507. This

A variation in the same theme:-

Thanks, I've now tried the dummy load from QRP Labs, and a couple of antennas that should produce absurd SWR at some settings. All the while, the QMX+ shows SWR between 1.00 and about 1.10-1.20.