I have sent the request out twice with not even a no it never worked for that Alinco mobile so I am guessing no one knows the answer to using Chirp with an Alinco DR620.
Nate Schneider
Loud & Clear, Inc.
2001 Dalton Ave
Cincinnati, Ohio 45214
Phone (513) 421-0488
Fax (513) 345-4112
