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Most builders solder on the bottom of the PCB. However, plated-thru holes usually wick solder up into the hole, often being visible from the top of the board. I think quality PCBs and good soldering

Stan, I initial tried tweaking the LP filters with little effect. They are tightly wound and because of the tap little movement is possible. So yes I played with the spacing of the windings of the

So something is definitely wrong. C526 should show direct continuity.? And since the center pin has continuity to ground, it will also have continuity to anything else connected either directly or

John, M0JBA said: "My QMX+ with QLG3 also draws about 160 mA at 9V" Thank you John and va3rr. I am at ease now that someone stated that which I had missed... My QMX+ with an QLG3 probably requires a

But, like the proverbial chicken soup, it couldn't hurt, and will ensure that you have made a good connection as well as reinforcing the plated barrel in the hole. But it is not worth overheating the

I attempted this, but quickly realized I don't understand how to do steps 1a and 3. The manual, as usual, didn't shine any light on how to use the Tune SWR function.

That's what you can do with a normal radio, not the QMX.

On plated through hole boards as long as the component lead is soldered well on the top or bottom it’s fine I seem to recall the MIL standards back in the day wanted to ?have the hole 66% to 100%

His call sign and email are given on the first email in this chain. Just look. John Pokluda *KC1VPP* [email protected]> wrote:

I'm in Michigan. I'll shoot him and email, I appreciate the contact!

Hi, I beg to differ, as I'm planning on making my MRF101AN amplifier ask the QMX+ about the TX frequency continuously in order to make the Amp choose the correct LPF Using a serial connection between

A good skill to have on this message group/forum is how to search prior messages. There are several messages that have answered that question in recent weeks. Just type Erik into the search box. Stan

Anyone have Erik's Callsign or email address TerryNichols K8TDN

If you are in the US, you may consider sending it to Jeff W1NC who can replace the processor for you, and do other repairs. His info is good on qrz.com, and is very highly regarded for his services to

Yes, they are for a hardware mod to use the PTT out connector as an additional serial control/status port for the QMX processor. You remove the transistors Q203/Q204 and connect those two solder

I did power it initially with a 12v regulated power supply at first, and current no limited by the power supply. Been running around so much I forgot not to go over 12v. 12v power source connected

I was qrv from POTA NL-0252 at the time. OH8TX 1240 utc in my log using qcx20 + efhw. 72, Carel PA0CMU

Roy, If you are talking about the internal mic, then yes, install it because it's being used as part of the noise cancelling circuit. -- 73, Dan - W2DLC

I would first test the mics you get.? I also got a mic kit from Eric, and the mic element in it performs very well, with good snr, sensitivity and dynamic range.? But they are very inexpensive mic

Depends on the board. QRPLabs kits use through-plated holes in their board fab, as do most other kits.? In this case, you should solder on whichever side of the board is most convenient,? usually