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Just received this tuner from Amazon. I'm new to all things HF. My question concerning this ATU-10 is do I connect the radio to the 'In' or 'out' BNC? In my case it will be the FX-4CR. Also, if any

I got started here: https://github.com/Dfinitski/N7DDC-ATU-100-mini-and-extended-boards

Hi all, is there a version of ATU-10 firmware around that builds in MPLAB? I took some baby steps on this myself but the register configuration refactor has stalled me for now.

No problem, Sardar, glad to help It might be some time though before I can check your schematics.? We have had a death in the family and not convenient at moment . Glenn

Glenn, Thank you! It looks like the only difference between 1.32 and 1.32c are those R24 and R25 resistors, right? I will be updating my schematic accordingly. When you got time could you look for

Nice work Sadar, I haven't looked closer at your questions as yet but can tell you the 5k1 resistors are on my V1.32c PCB. Sch__ATU-10_Sht1_SCH_v1.32C_081221_2.pdf

hello, Sardar 1) common C goes to 3-6 pins of relay K1, Common L to 4-5,? correct 2) 4-5, correct 3) 2 power buses have 2 caps 4) I cant understand, no reversing power supply voltage there 5) yes,

Hi, I have designed a yet one David's (N7DDC's) ATU-10 PCB based on Glenn's (VK3PE's) schematic (v1.32). It fits 100x88mm enclosure. I want to release it for as an open source for JLCPCB ordering

Hi all I am looking for a ATU there can handel 2.5kw ( I am building a SSPA whit 2x mrfx1k80h ) but I see that several hams use the ATU-1000 at 1.5kw....but anyone have it running on +2kw or what to

Found the information. ?5.5mmx2.1mmBill

What size is the power connector on back of the N7DDC tuner? ?I am having a hard time finding one in my stash?that fits.Bill KO4NR

Hi Pete, Did you find the problem - I now have the same here on my ATU-100 (bought built out of China) - it seems to be something that has happened recently as I'm fairly sure the last time I used it

Hi Mike, Okay, that sounds good. The current hex file should be “atu_100_fw_EXT_32.hex”. Remember, to get the OLED display to work, the EEPROM locations previously provided will need to be

Dave - Thanks for the pictures.? I used external power the first time I tried (and failed) to program the ATU, but just used the programmer's power when I was able to write to the ATU. I may have

Hi Mike, It’s a couple of years since I last programmed my ATU-100. Does the device show as expected when connected to the programmer? I have attached a screenshot when I was programming the

Dave, I turned off both protects before writing. I also did a read before importing/writing. That read came back with F’s for both regions. 73, Mike, KL7MJ

Hi Mike, Did you change both the code protect and data protect to "off" before programming. I recall some people saying that you have to do an ERASE before programming if you change the protect

Thanks for the help, I’m making progress. I can write and read back from the ATU. The EEPROM data looks good, but the Program Memory section is filled with F’s. When I apply power nothing happens

I understand your frustration.? Went through the same myself.? Got everything working in the end and before I forgot what I did I did a post on the forum with the steps I took. Post number is

Hi Mike, Most of the ATU-100's are shipped with the protection bits set, so you can’t read or write to the EEPROM. If you want to modify the EEPROM values, you will need to reprogram the PIC. There