A dual-band mobile covers 2m and 70cm, which handles the overwhelming majority of what most hams actually do on VHF/UHF. A tri-band adds a third band, typically 1.25m (222 MHz), and the question is whether that third band is actually worth the extra cost and complexity for your situation. What dual-band covers 2 meters and…
How the YSK-891 separation kit actually installs, and what running the FT-891’s control head away from the main chassis looks like day to day.