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Hi Steve Well, your problem is very similar to mine. However When I first powered up and aligned it all was fine. But after probably around 1/2 hour of sporadic CW TX and WSPR TX (got signals across

Hi all, got my QCX up and running on 30m and receiving very nicely but only with about 1W power output on tx. I confirmed about 23V p-p on the drains of the PA transistors. I only get about 3.5 p-p on

Hi Ron Have you tried 14 xx (6*2 for the wspr transmissions and 2 minutes for calibration). What CAL parameters are you using ? Jan

Hello Ryan ?I've found the DS3231 TXCO RTC works well with the Arduino Shield and WSPR. See and outline of my project at?https://www.qrp-labs.com/uarduino.html#g3zil (

I have been experimenting with the 6-band U3S trying to find a "Frames" and "Cal" settings that provide for a nearly continuous operation of the WSPR beacon.? Ideally, The goal is to have the U3S

Thinking about another orientation to possible reduce the size of the enclosure, what about a right angle rotary encoder:

This may not help (but its yet another option to think about) is that you can extend the pot & encoder controls using a rod of the same diameter say a section off a long pot shaft, a wooden dowel,

Perfect. I can put the rotary encoder in from the back side, insert that thru the case and tighten it up, then use a mounting post in each rear corner to make the board stable in the case. Everything

There is. 3 menus under your message - REPLY / LIKE / MORE. It's under MORE. 73 de Andy

Hello you can solder female connector for display to PCB and right angle pins to display? 73! Alexey UT0UM

I hate it when this sort of question is asked. First I think about it, then I try it and find my guess was wrong. No, I'm not telling <vbg>

On the last couple of flights I have been using 6psc of 38x19mm-solar-cells connected in series, I know from looking at Daves u3b flights photos with th new u3b firmware he use the same cells but cut

A quick "dry fit" says the potentiometer is a bit of a problem. Not insurmountable but not a simple flip and solder operation. 73 NE5U Mike

While drinking coffee this morning I have been looking at the options for mounting my QCX in a case. Mounting the display seems to be the easy part except for making the hole for the display. I can

Hi Ryan No reason not to do it this way... it all depends on the accuracy of the real time clock. If the timebase is a TCXO then it could run the U3S in WSPR mode for weeks or months. 73 Hans G0UPL

That’s very useful information, Mikael! Thanks for sharing it! I’ve ordered some of the balloons (the 36 inch ones). I wonder, do you fill the balloon bit by bit, and then try the floatation after

All info on my blog : Enclosure mod ( http://pa-11019.blogspot.nl/ ) . 73 John PD7MAA

Hi Hans and All, My Shack Clock kit and GPS Receiver kit arrived on Thursday. I built the clock on Friday night but all is not well. The LCD lights and shows one row of squares (top row) indicating

Very good. Hope it goes well D

The origional buttons were not used . I had 2 extended push buttons in stock as wel as some cheap plastic potentiometers. The shafts were cut of and appeared to be hollow. A 1/8 ( 3mm) drill was used