Yes, I tried but it isn’t working on Dragino LoRa GPS hat. I contacted the developer and spoke to him but for now he hasn’t the time to look after the code. Maybe it helps if you contact him, too.
The dual channel code is only working with Uputronics board with 2 mounted RFM95 modules. If only 1 module is soldered, you can make a little change to the code to get it work.