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Al, 66.3 seems to have improved the button response but hasn't cured TX calibrate issue. All I can see on my spectrum analyser is a very low level carrier around -90dBm. Roger G8JWT

I started to wind the coils for the 6m band and am confused about L601, L603, and L605. The directions say L601 and L605 are 39nH, 5" 24AWG, 5 turns on a 1/8" drill bit. However, L603 is 24nH, 4"

I can view and down load PDF's fine. I think some of the V12 Schematics in PDF format are missing from Git Hub though. Tim W4YN

Whose PDFs and from where? The fact that there don't seem to be others with the problem, perhaps your viewer isn't working correctly. Can you view PDFs from other sources? Jack, W8TEE

Over the last couple of days I've made attempts to view the .pdf files, both on my Ubuntu desktop and a Win& laptop at work.? The .pdf are not working, instead I have this message: Unable to render

Actually you can mix and match the earlier version boards with the newer versions… check the upgrade paths on my GITHUB here: T41/T41_Upgrade_Paths at main · DRWJSCHMIDT/T41

Hi Al, Tried your latest release 066-3 and still cannot get IQ xmit cal to work. RF is a little better but no tone or very low. Thinking I might have a problem I loaded in a release from 01-07-25,

This version fixes the button response problem in Receive Cal and a couple of other small issues. Al AC8GY

Same thing here. Very weak carrier at -80dBm. Nothing more. G8JWT

Just started the xmit cal, also no tone on PTT, seems like a weak carrier is present. Previous version 3 or 4 weeks ago, Olivers release, worked ok on xmit using my tiny SA. Rec cal works fine. Rick,

Thanks Al and Oliver for the new code and instructions. I have run through the freq cal and receive cal with no problem. I have a receiver/SA hooked up to the Ant1 out, and am, in the Calibrate TX

I reset the Teensy and loaded the version 66.1 S/W. Everything seems to work. I did the Frequency Calibration with a GDO @10MHz and got ~0.1Hz error. However, when I tried the Receive IQ Calibration,

Thanks, good luck with the contest. My shop and hamshack are in a bad state at the moment.? Age, some health limitations, and I come home from work expended.? Lately I've been doing better, and have

A full set of V12 boards (16 boards total) is now $17.68 plus shipping (was $14.28 plus shipping a year ago)…. The production costs have increased at the manufacturer’s end. Three of the boards

*** Wow. What a mix of technologies. FPGAs at one end, a tube at the other! My first amp project used tubes. Back in high school. 4 6LQ6's stuffed into an ARC5 transmitter cabinet. I think it did

Ron: The cost from Dr. Schmidt for new 12.6 boards is minimal, but if you have boards with the SMDs already in place, I would finish the kit with what you have. If you're not happy with what results,

Great, very good news as I ordered it this morning. Question regarding my kit I'd left boxed up since Dec 2023. My boards have a 2023 date on them, they also have ver 009b. Looking at the images of

Good work Tim! Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ Owner - Operator Big Signal Ranch – K9ZC Staunton, Illinois Owner – Operator Villa Grand Piton - J68HZ

Not readt to sell yet. I keep thinking up stuff to put on it for new purposes Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ Owner - Operator Big Signal Ranch – K9ZC

Ok great. A block diagram would be good to start. Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ Owner - Operator Big Signal Ranch – K9ZC Staunton, Illinois Owner –