Garmin Xdcr GT23-TM Mid-Band CHIRP DownVu New Condition 010-12404-00. 8-pin plug. Features of Garmin Xdcr GT23-TM Mid-Band CHIRP DownVu: CHIRP Traditional 600 W; ClearVu 500 W Frequency: CHIRP Mid-band (80-160 kHz); ClearVu CHIRP 260 kHz (245-275 kHz)...