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The QMX/QMX+ work fine down to a supply voltage of about 7.5V.? Somewhere around 7V it will cease to function.

I am about to order a QMX+ which I plan to use with my HardRock 50+ amplifier/ATU.? The HR-50+ will operate in "QRP mode", in which the ampifier is switched off and the ATU is still operating; this

I use a Emtec ZM-2 Z match tuner for my QRP rigs.? It has a Tune mode that puts a resistor bridge between the radio and the Z match, it also has a tune LED that will go out when you have a 1:1

Sardar, Dirk, I'm planning to order 5 rev. 1.3 Companion boards today so Stan and I can evaluate them. We think it's worthwhile to delay the big group buy so builders will not need to add large wires

Neat looking kits! Too bad transport from UK to US so 'spensive! Boo, hoo...! -- 73 Karl KI4ZUQ

I use an LDG RT-100 with my QMX's in QMX Test mode at home QTH and have for 9 months now. The RT-100 does a lot of hunting before settling in. So far so good. If I forget TEST mode, I get a SWR

I've built and use Kanga Pocket Transmatch with my QMX's. Half the size. I noticed that match on transmatch is different from match on rig. Read somewhere to match the rig. Makes sense.

Eben, As Stan says, "Hardware tests -> SWR" is the way to go.? I reduced my 'voltage' setting to 40%, and use the hardware tests SWR measurement to set my Z match.? I have no fear of plugging in

Rich The EMTECH ZM-2 has an absorption bridge that is in during tuning. The radio being tuned never sees a greater than 2:1 SWR. -- 73 KD8CGH

Nor forgotten, Chris. Just postponed. Pending. 73 Hans G0UPL http://qrp-labs.com https://buymeacoffee.com/g0upl [email protected]> wrote:

An alternate to lowering the power is to use an attenuator (lots of different names) between the QMX and ATU, I use a QRPoMeter which is a very nice kit to build and provides an accurate SWR and also

I evaluated the BS170 voltages at various SWRs and frequencies.? It is clear that at 160m and 80m that the manufacture's voltage ratings are exceeded even with low SWR.? I believe on those bands ,

Niece, Is this the net you run? SLOW CW 5wpm or less Sunday 8PM EST 7.045 and higher speed 13-20 at 23:30 utc Thanks Ed AB8DF

Ed please use. netlogger.org it will be better. for people to see who is on and who they can contact. i use this for my SLOW CW net and it really helps

Another way to find Ed is with HamAlert ( https://hamalert.org/triggers ) , a service that will send SMS messages when triggers are fired.? Set up a trigger for Ed's callsign, CW mode, 40M band.?

Pierre, it may be the only way to get some K1EL products, it has been since long time that Steve Elliot sold products to EU. Sadly, they have limited range of K1EL products, for example, no K45( I

HI, I use the ATU-10 om my QDX and no problem after a year of use, I have the QDX at 10Volt and it gives around 4 to 6 watt. My QDX is built for 12v but I had to reduce the voltage because of power

One more thing: both SMPS are in error state (red fields). But for more information we need the values (see my last post).

Grant, sorry the text is to small and zoom in doesn't help. Could you make a picture from only the part with the text (left upper part of the shown picture)? 73 Ludwig

The wiki page QMX QMX_plus Startup ( /g/QRPLabs/wiki/36878/213997 ) has been updated by @Ludwig_DH8WN <DH8WN@...>. Compare Revisions (