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Are you using the cable that came with the ATU as some only have the 5V connected try a diffrent cable.

I recently purchased an ATU-10 assembled (AliExpress) which arrived today. ?Mechanically, all appears to be soundly constructed. ?The display notes firmware version 1.5 on start up. Now the crunch..

Hi Dave?Yes after two weeks there I came home. Basically the change of BP medicine has fixed. About 95% better now. And yes it was very boring. Most nurses here by the way these days are Indian or

Am i to assume that you are all better and back home.? The only thing good about a hospital it you get to watch the girls and do nothing.? although some of us find that to be a bore. address is as

I recently got an ATU-100. ?It tunes but doesn't seem to retain the tune. On CW, for example, if there is a brief pause between words, it retunes. ?It seems to do this whether it is in autotune mode

Hi, where it is possible to download schematics, gerber files and source code ? Regards Luca IK2LRN

Hi DaveOK in the end. 2 weeks in trying to find the problem. Turned out my blood pressure dropped to about half from lying down or sitting to standing. A change of BP medicine has almost eliminated

Hi David, Thanks for asking and thank you for creating and sharing your ATU100 design. Attached are: - Entering configuration screen image - Configuration menu screen shots - Quick start manual with

Hi. What is new on the display ? Couple photos, please.

Hi, I recently brought one of these. My unit was fitted with the correct diodes and performs well across 160 - 10M. The unit differs in that it is designed to work on a 5v supply, with 5v relays and

Hi glen how did you stay in the hospital come out.? hope all is well. How much are you asking and what is the postage to the usa. dave k7da

SOLD.

Dave I have a couple of ATU-10 PCB's here. They use 0603 parts in the main as per N7DDC's board but the two Micros are for the larger footprint types. ie easier to find and solder. Glenn vk3pe

Does anyone have an exrta pcb for the atu-10 that i might buy? thanks dave k7da

Bret Take a look at the ATU-100's little brother, the ATU-10. Specifically designed for the type of operation you have in mind, including latching relays. Bill VK7MX

The Elecraft T1 has a low power QRP tuner: the LDG Z-11 Prp has latching relays: <https://www.ldgelectronics.com/category/Zero-Power-Tuners> I have both tuners. Both product lines may be hard to find.

Hi Bret, There is a QRP version by the same designer called the ATU-10 that uses latching relays. https://github.com/Dfinitski/ATU-10-10W-QRP-antenna-tuner There are other QRP tuners that may be

Thanks, Dave. So, the ATU-100 may not be the best option for QRP radio operation on battery power, although the current draw may vary considerably based on antenna and configuration. Are there other

Look at message #1274 and the replies. The ATU-10 is missing 2 pull-up resistors on the USB-C jack. They can be added but it is difficult for my non-surface mount soldering skills. :-) 73 - Dave,

Hi, Mike. Use a USB A to USB-C cable only. Before programming, the device should be fully charged.