[Retevis RT76P programming]

1.    I have a Retevis RT76P.  I would like to figure out how to connect to a local GMRS repeater.  I have obtained permission, and the owner responded with "Dpl411. In and out."  Is this the CTCSS code, and is this the same as the D411N code drop-down choice  in the RT76P software?

 

2.   I have downloaded the Retevis RT76P software.  But, it is not clear how to proceed to set up my radio.

 

      I do the similar process with UV-5Rs and Chirp without any issues.  But, the Retevis instructions are clear as mud.

 

I can run the RT76P.exe application.  It looks similar to Chirp.

I saw information that says don't waste time trying to Read from my radio.  Just use the default, make your changes, and Write it to the radio.  I have choices of COM1 or COM4.  I have tried writing to the radio.  But, the screen shows "Hand shake", and hangs there, either COM.

 

I would really appreciate it if someone could point me in the right direction.

Thank you for your help.