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Yes RX cal works fine Will there be an option for different PB configurations? My front panel designations are different than yours. Tnx for all the help, Tim

These look right, now. There's still a few things left for us to fix, but we're close. Jack, W8TEE

With smallest LTO emory Usage on Teensy 4.1: FLASH: code:206376, data:127280, headers:8356 ? free for files:7784452 RAM1: variables:178560, code:195720, padding:888 ? free for local variables:149120

That's the right file. Did you optimize for smallest code with LTO? And you are using IDE 2.4.3? Jack, W8TEE

Apparently I've missed the write-up on the V12 receive calibration that Tim is referring to. Any chance that someone can point me to where I can find it as well as the latest software version that he

Yes Pure Signal is open. Go take a look at Thetis for the Anan or Hermes/Hermes Lite radio. My simplistic thinking is that it works a bit like noise cancelling headphones, except the thing cancelled

There is a short introduction to predistortion in Experimental Methods in RF Design Section 10.? But, you do need to apply predistortion in both amplitude and phase.? DSP is the way to that. And

Says STDVer64.ino But screen says 63-1-2 tim

Zip you sent says 64 but the display on screen says 63-1-2 I will try again Tim

The new attenuator/ 20W dummy load I made can be used as just a 40db tap on the RF line for feedback for something like this (besides the radio calibration). I don’t think it’s that difficult to

What I sent you was STDVer064. You're compiling someone else's code.

This code is 100K larger than mine. Where did this code come from and do you have the compile flags set properly (e.g., smallest code size with LT)? Jack, W8TEE

IDE 2.3.4 Latest compile FLASH: code:303292, data:130360, headers:8708 ? free for files:7684104 RAM1: variables:182112, code:279560, padding:15352 ? free for local variables:47264 RAM2:

I got the beta V063-1-2 running and staying up now, not sure what I did different. My PB's are not what they were before Probably need different menu file I noticed that Calibrate RX is way wonky

This is what I get: This is for the new code we will be releasing within a week. Tim: What version of the IDE are you using and do you have the compile options set? Jack, W8TEE

Tim, Here's a binary. You should be able to load it into your radio. It's not perfect, but it does basically work. - Jerry, KF6VB

You can do negative feedback.? But there has to be a phase adjustment so the system is stable. I thought the "Pure Signal" pre-distortion software was open source? -- 73 Greg KF5N

Memory Usage on Teensy 4.1: FLASH: code:303292, data:130360, headers:8708 ? free for files:7684104 RAM1: variables:182112, code:279560, padding:15352 ? free for local variables:47264 RAM2:

On 2025-02-10 11:34, K9HZ wrote: In any > case, he does tout using class-A final RF amplifiers in the transmit > stages of radios because they, by shear design, will generate less > IMD. *** NO

Did you see my email on this? Jack, W8TEE For reason I can't explain, the IDE hides some libraries in the folder you defined in your Preferences section, which you can find at the File-->Preferences