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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.

Will do! I'm hoping to have the Main board finished next week, but my mother-in-law is in hospital at the moment, so that might slow progress. Rob G7WKE

Thanks, Greg - that looks something like I'm aiming for. I'm planning on using a 9" display, so using DC/DC converters makes sense to help keep things cool. Rob G7WKE

There is quite a difference in price in the Log Amp Detector and Diode Detector options. Before I chose the cheaper route, what is the performance difference I will see in the display and are both

A couple of other interesting things about putting the extra 90 degrees in one filter.? Once the extra delay is removed, the 90 degrees is exact. The only sideband suppression errors are in the