U3S and SDR are soldNorCal40 is pending funds -- David N8DAH Kit-Projects.com Shop is now open!

Ya Curtis, quite familiar with FCC's beacon rules... Only unattended I plan on running will be on 10/6/2 meters, where it's acceptable. Below 28Mhz, control op needs to be present... And what

Not sure what happened, was just curious on what others ran... lol Oh well, been a ham 23 years now, and after becoming bored last fall, upgraded my license to play on some of the more fun bands.

Bill, off topic here but an easy way to check ur frequency accuracy and stability is using the FreqCal function with WSJT, its at the bottom under the mode selection. It also takes into account ur

One thing I have learned....don't let conventional wisdom stuff your pipe with the wrong tobacco. Some folks are more zealous then others and some handle their opinion like a treasure chest. Hangin

Had a unexpected car repair and need to move a few things out of the shack. I have the following all built by me. Norcal 40A 10T-Pot, Solid 3w out tuned for 7.025-7.070ish at 690Hz with built in Touch

Hi Bill, Not defensive, I'm happy to answer questions posed as best I can. I'm not a font of all knowledge & don't pretend to be. Everyone is entitled to their own point of

Victor Asking hams to suggest then debate antennas is a real hornets nest. My barefoot U3S reaches half way around the world on 30 and 40 meters using a vertical. Likely you may not have an antenna

Jeeze... After a couple of years of struggle, frustration with getting sense about QRPp antenna design from so many self-ordained "experts" has caused me to walk away from ham radio as a bad job.

My U3S is putting about 250 mw into a MyAntenna end fed dipole. I get lots of spots every 10 minutes on 30m. My drift is almost always zero, with an occasional one or two Hz thrown in. -- John,

Hi Alan, It looks like you are a little on the defensive here. My comments are not a slur directed at either you or WSPR. I'm sorry if something I said looks that way to you. I tried WSPR several

I use decent antennas for everything as if its poor and nothing happens where is the problem? So End fed half wave monoband so I know its pattern (like a centerfed dipole). A long while back I

Hi Geoff, No claim for originality.... I merely referenced Hans section 6.4 Page 22 of the receiver build manual. Just in case Hans was wrong, also bottom of page 4 /

Which states the standard way the SNR value is calculated. SSB needs at least +6db in a 2500 Hz bandwidth. The actual signals are 6Hz wide and transmitted within a 200Hz range. 73 Alan G4ZFQ

Ed, Thanks for doing this. I was the "Bill" that joined late and didn't say anything. I was at work and was listening. That will probably be my MO, until I get a get. I want to learn a significant

Alan, I will always bow to someone superior knowledge but the WSPR site says that the decode b/w is 2500Hz, not 200Hz. As long as you are in that 2500Hz b/w, you will see some signals. You

Hi Bill, frequency accuracy requirements on the TX side are pre-deltwith in the U3S kit. Use good construction practice, common sense, case the kit, you don't want draughts or

Never mind, I tested it and it works just fine.

Hi Alan, I don't use WSPR at all. Once (or twice) upon a time I tried WSPR but failed completely. Toys like WSPR give new meaning to frequency stability for an amateur. "Good enough" is still good

Hi Victor, You may be surprised just how good the WSPR mode can be, with no / minimal effort.. I run a random length of wire (no more than 15feet)?? pinned to the facia board