I have changed the TalkGroups that 2100 is connected to for testing. As of now: BrandMeister reflector 4639 is receive only DMR-MARC North America is receive only SandBox is Tranceive. When you listen to 2100 see if you hear a difference in audio quality between DMR-MARC and BrandMeister. Please let me know what you think. 73, Steve N4IRS -- "Anything is possible if you don't know what you are talking about." 1st Law of Logic