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As long as its consistent... it should not matter... I designed the LPF for this set (which is the Kenwood/ Elecraft/ Yaesu/ etc. standard): But somehow that got twisted. These standards are important

*** Indeed. And every time I load new software, I have to redo the support for my linear. For those unimplemented bands - maybe a #define? - Jerry, KF6VB

Hey one thing here… I have to redefine the radio band structure every time I use a new version of the software to include the missing bands (e.g. 630M, 160M, 4M, 2M, 1.25M, 70cm, 33cm, 23cm).

The menu system on the book cover is: The switches correspond to the code: #define MENU_OPTION_SELECT 0? // These are the expected values from the switch ladder #define MAIN_MENU_UP 1 #define BAND_UP

It matches this button layout: https://t41sdrtransceiver.wordpress.com/wp-content/uploads/2025/05/t41-in-black-case.jpg?w=748 [image.png]

TNX Is that the same as picture on front of book? I have Justin's case and the labels on case are different. I believe I can cross reference code to picture in book and figure out changes. Tim W4YN

See lines 154 to 187 of SDT.h: https://github.com/KI3P/SDTVer066-9/blob/69b0c5673da6ef05dcba047a719a6693359b1353/SDTVer066-9/SDT.h#L154 This section defines the function of the front panel buttons.

Is there an easy way to remap some of the PB functions? Version 66.9 Tim

I will publish a schematic shortly… Dr. William J. Schmidt - K9HZ J62K(J68HZ) 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch – K9ZC Staunton, Illinois Owner –

Hello Oliver - The bottom two entries of the Hilbert index page ( http://www.janbob.com/electron/Hilbert25/Hilbert25.html ) , are a 119 tap coefficient set that provides at least 50 dB sideband

*** That would be a deal killer for me. Unless it restarts in a few nanoseconds. - Jerry, KF6VB

I was thinking of using them with the si5340 at 300 MHz to at least get us to 2 meters where the V12 works now. I don’t want to replace existing hardware with new hardware and lose capability. The

Bill Are you thinking of using these to make a UHFSDR like add-on for T41? --

Thanks! If you have a set of filter coefficients with a cutoff that works well, please send them my way.

The previous post on Test Equipment gave good thoughts on available equipment.? Here is one that I don't think was covered for measuring the sensitivity of the receiver.? It is a straightforward and

John… have you made progress getting the si5340 working with the RF board. Curiously I was able to procure a few hundred SY10EP52VKI chips… that are differential clock flip-flops that operate up

A last thought!? I think you are using a partial bandwidth.? Be careful, in that as there is a region at the mid-band cutoff where the the amplitude imbalance is quite bad, like a few dB, but the

The SWR/Power bridge log-amp version is far more accurate than the diode version… and over a much wider power level. So for example, the Log-amp version once calibrated (just a single point – S11)

Only the log amp detector is currently supported in software -- adding the software for the diode detector remains to be implemented.

Will you look at that, it works! [image.png] I'll add support for this approach when I get to the transmit code rewrite.