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For those of you in the UK/EU… Andy Rutter, G8HCK, has graciously agreed to distribute T41/ K9HZ/ K9HZ-KI3P boards and kits there. I’ll attempt to ship him a load of stuff and he will make arrangements to ship to you. In the short term, you should give him your order and at a time in the near future… he can forward the combined order for me to ship to him. You can contact him at: arutter@... 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 Piton – J68HZ Soufriere, St. Lucia W.I. Rent it: www.VillaGrandPiton.com Moderator: North American QRO Group at Groups.IO. Moderator: Amateur Radio Builders Group at Groups.IO. email: bill@...

I have output in CW mode, but 0 in SSB. Even doing TX IQ with 750hz tone or 2 tone TX 0 output. FW is the 66.9 Tim W4YN

“I have mentioned to Bill and Oliver that I would like to see a small PCB hold the 4 connectors (mic, PTT, headphones, and key) just because the current direct wiring makes the front look like a rat's nest. It's purely aesthetics for me and something most people will never see. “ I’ve been working on this for a while but have tied it to an overall audio system. Here’s what I have on the list (Comments welcome): For AUDIO OUTPUT: Stereo output for RX1 and RX2. Separate Line output with variable gain (TDA1308, TDA7050, TDA7313) Separate Headphone output variable gain/ headphone amp (LM4811, TPA6120, TDA7050, TDA7313). Speaker output with on-off and variable gain. 3+W amp for speaker output (TDA2030, LM4950). For AUDIO OUTPUT: 2x MIC input (front and back panel (TDA7309) Line Input (TDA7309) Connection boards: FRONT and BACK: Front: i. AUDIO: Mic, PTT in, Phones, ii. Key? iii. On/off Back: i. AUDIO: Mic, Line in, Line out, speaker (internal). ii. Key iii. PTT IN iv. KEY OUT (from LPF) v. ACC Connector (BAND0-BAND3 from LPF Inverted). vi. USB2 vii. RS232 This is all sitting in a box here waiting to proto it up and try. 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 Piton – J68HZ Soufriere, St. Lucia W.I. Rent it: www.VillaGrandPiton.com Moderator: North American QRO Group at Groups.IO. Moderator: Amateur Radio Builders Group at Groups.IO. email: bill@...

Like Oliver on the Software side, I have graciously been handed the hardware side of the T41 development moving forward. (Just my take with this next statement) The software side is easier to experiment with… basically because its easier to “roll it back” if the experiment fails. To that end it requires more discussion and engineering calculation on the hardware side to make measurable steps forward. I do have a stable of engineers that work for me… but they are not here to work on the T41 project (unless they do it off-hours). To that end, I will start permanent “hashtag” sub-groups in the AmateurRadioBuilders when there is a growing interest in any aspect of the T41 hardware to address and discuss. There will be some changes to the building process tools I want to announce today. I will begin to stock solder masks shortly… something I have not done in the past. I originally considered stocking solder masks and “renting them out” for reuse. But after understanding that the SHIPPING for return would cost about the same as purchasing a mask outright… I will simply sell them outright. Then you can share them on a local/ club level. I’ve shipped about 50 of the display driver hardware devices. I have about 150 more in stock and then I will restock. Eventually, this hardware can be moved to the main board if there is an update. Remember, there is a difference between the T41 hardware and my K9HZ, and the K9HZ/KI3P hardware projects that we may or may not allow group think due to the fact that there may be external requirements that you are not aware of (e.g. the 100W PA module, the VHF/UHF Module, ETC.). Here are a few hardware things I am thinking about for the existing T41 boards. If we update the main board to a 12.7 at some point, I think we should consider placing the hardware from the audio hat directly on the main board. I would also put the SPI display driver on the board… a pair of ultra-low noise references for the A/D and D/A as needed, and possibly update the linear regulators with ultra noise LT3045 (etc.) devices. Maybe splitting the A/Ds and D/As to a separate card… off the Main board may facilitate more experimentation at that level too… making it easier to change. All of these are small changes… but if you are an experimenter, it might be up your alley. 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 Piton – J68HZ Soufriere, St. Lucia W.I. Rent it: www.VillaGrandPiton.com Moderator: North American QRO Group at Groups.IO. Moderator: Amateur Radio Builders Group at Groups.IO. email: bill@...

Hey for those that want boards, I’ll be in town for about 5 days so now it the time to order… ALSO I’d like to get a couple of these display driver boards into peoples hands (yes, build and free) to see if they work. Everyone of my 4 radios is in a different state and I don’t really have the freeze-up issue… but I do want to fix it permanently. 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 Piton – J68HZ Soufriere, St. Lucia W.I. Rent it: www.VillaGrandPiton.com Moderator: North American QRO Group at Groups.IO. Moderator: Amateur Radio Builders Group at Groups.IO. email: bill@...

Hey 'yall, I'm still working off a 2' wip in the basement, so not the best environment. Lots of noise on 20M but still picking up 4's and 5's !!! Anyhow, I may misunderstand what the book (3rd ed) is saying but when I adjust the noise floor, the spectrum goes UP and the waterfall colors get more out of wack (my opinion). I mod'ed the code to allow the Noise Floor to go negative and it does what I was hoping/expecting/understanding. Is there something here I don't understand? Do I misunderstand what the book is saying? I'm running the latest 66.9, v12. I'm still working my noise problems. Thanks Mark KU3O

Just wanted to let everyone know that Amazon is NOT shipping the latest 3rd Edition of the book, at I didn't receive one. Maybe they are trying to get rid on the 'old' Third Edition copies first? Duane - K5CA