This morning, I used the encoder from an unbuilt QCX kit to replace a Bourns encoder that was incompatible with the rotary.h library that is found on GitHub. The one from the kit worked fine but the B

Hi all QRP Labs is one of the 45 exhibitors at the QSO Today Virtual Ham Radio Expo this weekend 08/09 August. https://qsotoday.vfairs.com/ . Apparently more than 21,000 visitors are registered at the

Did something happen such that messages now appear latest at the top, rather than earliest? Or am I just not remembering correctly from last week or so? - Bruce K1FFX

My amplifier doesn't work. I'm trying to find the fault. My equipment consists of: Power supply Signal generator Oscilloscope I tried to only test the amplifier, without PTT, by injecting the signal a

I have a working Ulimate3S and am using it on wspr and CW. I am using the massage entry in the system to determine the CW content. I have a number of working GPS's that appears to work correctly and d

Okay, I searched all over the place for an answer/suggestion before posting this. I finished my QCX CW kit for 40 meters at the last part of July so that I could take it camping with me. When I starte

I recently flashed my QCX-40 rev1 from v1.03 to v1.05 and set it up in WSPR mode with my QLG1 gps. However now I'm having troubles with the clock randomly stopping as well as some squirrelly behavior

just finished assembly of QCX+ and have 2 problems - 1) initial display shows 14.020 and "TGK**IEEEA" - does this mean anything ? 2) adjustments of R17, R24 and R27 do nothing to the display. Receiver

A new poll has been created: On the proposed QCX-mini, do you prefer a BNC connector like on QCX, or an SMA connector? 1. BNC 2. SMA Vote Now Do not reply to this message to vote in the poll. You can

On my 80 meter QCX plus radio, the output power fluctuates rapidly between 1 and 2 watts output about twice per second. What could be causing this? Thanks! Rob N3EQ

My 7805's output is just 2.2V with 11.8V input. It's also running extremely hot. I'm continuing to look for shorts but I'm not seeing any. Any tips? Ross, NS7F

Hans, I don't think you will have time for this, but here is a suggestion: I sympathize with the thread discussing the larger size of the QCX+. Given the quality of the QCX, many will want the radio m

Thanks to all the people who found errors or suggested improvements to the manual. I have edited the manual and uploaded manual revision 1.03 to the website see http://qrp-labs.com/qcxp The changes ar

I have completed construction of my QCX+. Lcd screen is solid white (back light only). I find I have no 5 volts out of the 7805 (ic11). Checked connections, soldering etc. all looks ok. Could it just

My encoder has become difficult to turn after about a month of casual use. What are it' specifications or part number so I can order a new one?

When setting Peak BPF, the amplitude peaks 3 times during a full rotation of trimmer cap C1, when the plates are centered on 12:30, 4 o'clock, and 8 o'clock. The 4 o'clock and 8 o'clock positions give

https://www.metcaseusa.com/en/Metal-Enclosures/Enclosure-Feet.htm?ref=41701650-69b5-11e5-ab58-bc764e20b40e I use this company's tilt legs for my build. Check them out! Mark N8IAJ

Sorry if this has been asked before, but are there any ideas od delivery times for the QCX+ The website lists a 3 week lead time on one page and delivery in mid june in the description which was what

We should live so long!

Just finished the QCX+ 30 build. I think I even did most of it correctly. One issue (so far) with 13.5 volts power supply I seem to only be getting 1.5 watts output. Is there anything I should look at