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Hello Wes You may find this article on improving U3S harmonic attenuation interesting http://www.qrp-labs.com/ultimate3/u3info/harmonics.html - this applies to relay board Rev 4 (and below), and is

Oh, and here's my WSPR dashboard (so far). It's showing the past ~20 hours of data. https://k7fle.us/wspr-full.html

Picking this up again. Hans- thanks for the rev5 instructions- I just missed seeing them on the page. Ryan- I worked my way through the continuity, I don't trust the job I did soldering my antenna

Just want to ping the group again with this question, as i do not see any responses yet. I have mine finished and working into my dummy load. Seems ok, but want to see what others have done in this

Thanks for updates. I am still waiting for 799 shipped on the 3rd.? Expected it by now. It's not like I stay in the bush :-) 73, -bob ah7i/w4

Hi Enno, Fred, all There are two things which I think can increase power output. Talking here, on the assumption the transceiver is already performing properly i.e. correct LPF etc. I expect Fred is

Thanks. It's now had it's first QSO - Park City, KS to K5BQ in Gordonville, TX. I had been working him on 7.030 with the K3S station at 450 watts and just before we signed off, I asked him to listen

Hello Jim, W0EB, I'm glad to hear you got your rig up and going. Way to go !!! Those are some nice pix. Regards, Ken, KM4NFQ

Thanks Jim (K8IQY) and all who responded to my post. Some good advice and tips on how to proceed and it sounds like the problem is almost certainly the LPF inductor values which are probably wrong

Disregard my above post please.? I've solved it completely.? The problem was (as mentioned in several other threads) RF feedback.? My QRP antenna feedpoint is about 15 feet above the shack and only

thanks, Jim! I will be patient,? Hans has done a wonderful job, and I understandhis workload! Paul To: [email protected] Sent: Sunday, November 19, 2017 10:47 AM Subject: Re: [QRPLabs] QCX

Paul, You have to email Hans and request it. It has some intermediate bug fixes before the next version comes out. He'll send it to you via email rather than post it as it's a Beta and not fully

Where did you find version E?? (v 1.00e) I looked at the software updates and could not find it. Paul K0ZYV To: [email protected] Sent: Sunday, November 19, 2017 8:44 AM Subject: Re: [QRPLabs]

Now that QCX40 #943 is up and mostly running, here's a couple pix of it. The Arduino ISP progammer worked and firmware version 1.00e is clearly shown on the startup screen. The QCX aligned well and

Nigel- Have you tried adjusting some of the decode parameters to see if that helps? (noise blanking, speed avg.) You could also experiment with the value of the paralleled resistor across R38

On 11/18/2017 6:09 PM, Nigel Evans wrote: Bruce, your modification certainly tamed the audio gain, however I found the decode capability no longer worked

I was going to write those exact words, then scrolled down to discover that you had beaten me to it. 73 de Andy

Hi all, Received my #913 today, 11/18/17 shipped on 11/8/17. 73, John WA6YSY

After finaly deciding IC1 was dead, I decided to reset the firmware to factory defaults. The QCX now works fine. I don't know what caused the micro. to have a headache. My 40m unmodified version gives

Hi Louis, The back of the Hammond box has on the LHS (as viewed in the photo) a DB9 PC male socket for the GPS antenna. I use a 5m DB9 shielded cable to a small plastic box housing the GPS board and