I have an ATS25 max-Decoder that I’ve used some, and struggled with some. I keep plugging away trying to get some use from it. I’ve picked up some stations, gotten FT4 to work, listened to SSB, and decoded CW training transmissions. I currently have firmware version 4.2 AIR, 23 March 2025. The user manual is much improved with this release.
Wi-Fi
After installing the 3/23/2025 software, Wi-Fi wouldn’t connect to my home network. The entries indicated that they had been configured (blue) or a connection was being attempted (yellow). I found that I had to go into the Access Point selection, DELETE the existing credentials, and add them back before it would connect. It is possible that I lost some data due to problems I had with the last firmware installation and this was the reason for the failure.
Daylight Savings Time (Summer Time)
I wanted to set the clock for daylight savings time. Most of my radios are set to UTC and I didn’t know exactly how to set that either. I found the Si47XX for Radio Experimenters group on Facebook, and one of the commenters there explained the process: Press the RETRO button on the main screen, then SET, then CITY. When you select the city, click CHANGE, then EDIT and OK. Time offset will be flashing in the upper right corner of the screen and can be changed with the encoder knob. Click OK when done, then =>, EXIT, => and finally EXIT.
Antenna switch
Make sure the antenna switch is set correctly. On the max-Decoder, the AUTO setting is the way to go. You can waste a lot of time if the switch is set wrong.