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Dfinitski / N7DDC-ATU-100-mini-and-extended-boards

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ATU-100 swr indication error #24

Open sandroatu100 opened 3 years ago

sandroatu100 commented 3 years ago

Hello I connected a 50 ohm load (Bird 3 Ghz, but is the same with any load) to the out port, Bypass function activated. The swr indication with 10W( any power) is: 7 MHz swr 1.2 14 MHz swr 1.5 24 MHz swr 2.1 30 MHz swr 3.0 above higher But really on the at-100 input there is 50 ohm tested with nanovna and swr meter May you reply a hint? Atu-100 is 7 cells version with firmware 3 and oled display Regards

2E0DMB commented 3 years ago

Hi Yes i had This I Fitted new D1 and D2 for new BAT 41 diodes , and it is reading fine now, I got the ATU board ready made from a china seller on ebay, so the diodes that they used are not bat41, Let us know how you get on with it. Thanks Dave 2E0DMB