Does anyone see a roller inductor in the making??? They are hard to come by these days and the last one I bought was for a club build project linked here....a LC matching network for end fed half

Hello Jim. Very nice work on the coil form. I test printed your .stl file and it came out perfectly. If you don't mind my asking which CAD application do you use? Some time ago I attempted a similar

They look great. Love the ability to wind them with consistent spacing. Great job, Jim! Bobby - AK4JA

Perchance does anyone have the old electroluminescent receiver (kit or built) that they might want to part with? Please contact me directly at Djwilcox01 at gmail dot com. Dave K8WPE David J.

That's some nice work. Do I see an antenna kit idea? Ted

Thanks, Johnny, Didn't notice the photo was blurry... here's a better one Jim, N5IB

Gm Jim You do amazing work with that printer. These are really nice! 72 Johnny -- Check out the 4SQRP website at 4sqrp.com

Hi David, Here's the STL file, attached, and a photo. It's such a thin tube it needs a "brim" for buildplate adhesion There's a tiny hole at each end to pass the wire through to secure the turns. I

ALso, I'd like to see your STL file for the spreaders. David Martin - NA1MH - Mountain Home, Ar. ----------------------------------------- Wherever I go, there He is.

Before buying any antenna analyzer you intend to use in the field, make sure the screen is legible in bright sunlight. Many, advertised for the outdoors, are not.

Good experiment Jim, Thanks for sharing. David Martin - NA1MH - Mountain Home, Ar. ----------------------------------------- Wherever I go, there He is.

Ha Ha! Yup, for amateur use, spending 1000+ on a spectrum analyzer vs $65 on a Nano VNA or even maybe a bit more on a "Tiny" spectrum analyzer is pretty huge "overkill" LOL. I have both the Nano VNA

With too much free time for my own good, I did an experiment with 3D printing some spiral grooved coil forms. I was curious if the PLA plastic material used to print would degrade the Q of the

Look up W4C for your answer about Cuban jamming.

One suspect is Cuba. https://swling.com/blog/2021/07/from-cuba-with-noise-massive-jamming-on-the-40-meter-band/ Mike KL7IXI

I hear a lot about Cuban jamming on 40m? Matt KC3OIV

73's to all! The past two or three weeks, when I tune into the 40m net, there's been some type of strange digital QRM that seems to swamp everything out. It spans several KHz. Makes it almost

Sri I missed the nets. NAQCC Sprint took priority. hi hi 73 de n4mj//glenn “PLEASE REMOVE all email addresses before you send it on and use BCC option when forwarding" Thank you!

Tonights Check in's N0RSR ROGER N9EGT WAYNE AC0BQ JOHNNY NA1MH DAVID WA9BNZ BILL KC0PP KEITH NK8O CHARLES WG5F ED WA2TOP MIKE 73'S Bert N0YJ

Ge Group Bands were in pretty good shape. Lot's of check in's! Check in's were: 40 METERS WD4CFN STEVE N4ELM DAVE W5ESE SCOTT AB9BZ DAVID N3COB GLENN KK5IB DARRYL KA5ZBP JOE (POSSSIBLE QRO) 80