Configure continuous tone-coded squelch systems to block out interference from other radio users on the same frequency.
Fix: Open your computer's Device Manager and expand the Ports (COM & LPT) section. Note the number assigned to your USB-Serial cable (e.g., COM3). Go back into your SFE software communication settings and manually select that matching port number. Conclusion and Regulatory Reminder
Summary
Programming a radio with SFE software is not plug-and-play; it is a structured engineering process. The typical work cycle involves four key stages:
