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Congratulations Jack.? Thank you for pushing the league to keep publishing what I want to read.? If that last statement sounded selfish it was.? I hope I am not the only one.? When an article

I remember doing TX cal on 4Sq kit and it seemed straight forward. Believe we used CW mode back then. Current procedure calls for SSB mode setup using internal 750Hz tone. I can see results on SA and

I am teaching Electronics Merit Badge and did not want to take a lot of gear to meetings. I stumbled on to this and did not really expect much but it turned out to be very nice piece of kit. Much

Well done and quite deserving OM Jack. Tim W4YN

It's updated: https://www.amazon.com/Digital-Signal-Processing-Software-Defined/dp/B0F5BDQZW3 -- 73 Greg KF5N

Congratulations Jack, well deserved! It was a real treat sitting directly behind you last year at FDIM and wish we could be there again this year. Takes a lot of work to even be considered for the

This is a final call for the UK/EU group buy. I will be ordering boards and kits from Bill next week. Send any requests direct to me at g8hck@.... -- Andy, G8HCK

Thanks, Howard. It's an honor to be selected. Jack, W8TEE

Hi Jack, Congratulations on receiving the February 2025 QST Cover Plaque Award for your QST article entitled "Solutions for Winding Toroids,? Four methods to make working with toroids easier". You

You can actually do either. But do everything you would do on the outside of the radio to reduce noise… like using real MIC cable, ferrites, etc. Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ

I was thinking just bring Mic cable directly into Audio Hat. Looks good though. I have a lot of those connectors from RC control days! Tim

Glad that worked Tim… Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch – K9ZC Staunton, Illinois Owner – Operator Villa Grand

Here are my plans: Run a shielded cable from Mic Socket direct to Audio Hat Mic pins. Use back accessory IDC socket and run ribbon connector from there to Key inputs, Ground, and then a ground and

You also need to make a cable for the mic; Main to Audio hat dave, n3ds wrote:

Al and I released an updated version of the book, but we didn't feel it was worth calling it a new edition. The problem is I've placed two different orders and was sent the wrong printing. That has

Good point. I forgot about that. Jack, W8TEE

Ok… That does explain the ground issue for PTT too… it uses the same ground. Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch –

No it's there I missed it! 1. Make a cable to connect the “R_OUT” (or Q) and “L_OUT” (or I) and Ground (GND) on the Teensy Audio Hat pins with the 90-degree pins next to the Teensy board (pins

Looks like we need more language around that in the assembly manual… Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch – K9ZC