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Very interesting, John. Do you plan to release the Gerbers for the board and the supporting software? Please keep us posted on your progress going forward. Jack, W8TEE

Greetings All, I don't see much mentioned lately regarding the MCT, but having recently purchased the 'Microcontroller Projects for Amateur Radio' book (via Amazon); I've decided I would like to build

In the spirit of posting efforts currently underway, I have been working on a new RF board and associated driver software. In a nutshell, the new board uses the Skyworks SI5340 instead of the SI5351.

FYI for those going. 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 -

One thing you could do is power your ADC from a battery. That will be the reference test case. Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ Owner - Operator Big Signal

Were the extra 8-bits from the PCM1808 useful?? Paul showed they weren't from the Audio adapter. My F32 quad objects are ported from the Audio library and work fine as I16 to F32.? They are limited

The modified SI5351 library is needed to tune less than 3.2MHz.

On the question of Power Supply Filtering: I have done further measurements on the effect of filtering the PCM1808 power.? This includes the benefits of series inductors.? There are no changes to

Yes, after catching some interesting bugs in Tympan, I was able to have the same 1808 data run with Open Audio 2-channel and Tympan quad.? OA was 24-bit and Tympan was 16-bit, as you thought.? If

That works too 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

I used a 40 pin connector with a 10 wire cable.? No cutting pins required.

I think my previous post answers this... Jack, W8TEE

It appears that now the si5351.h and si5351.cpp are part of the project (hence the double-quote marks rather than angel brackets). Do not include the Si5351Arduino library in the #includes. It believe

The test software and the actual SDT software use the same libraries. Dr. William J. Schmidt - K9HZ J62K(J68HZ) 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch – K9ZC

John, the right libraries are given here: GitHub - KI3P/T41-V12-SDT: Repository for ongoing development of the software for the T41 V12 software-defined transceiver

Here is my connection on the same display… 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

oOops. Spoke too soon: I see there are links to the required libraries: #include "si5351.h" //#include <si5351.h> ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? //

Hi John, you need to install the Etherkit Si5351. -- 73 Greg KF5N

I'm trying to run the TestMain code in MainBoardTestCodeAndDoc. I got a compile error as it was looking for Adafruit_MCP23X17. I installed that and now get another error from line 30 #include

Thanks Bill. Yeah, I just cut off pins 11 and 12 so that a 10 pin connector will fit. It looks like the T-41 display pinout is a mirror image of what it needs on the Display, so I think I can wire the