Yaesu FT-891 Operating Manual page 13

EXT SPKR Jack
This 3.5-mm, 2-pin jack provides variable audio output for an external speaker. The
audio output impedance at this jack is 4 Ω ~ 16 Ω and the level varies according to the
setting of the front panel's AF control.
ANT Antenna Jack
Connect your HF and/or 50 MHz antenna's 50 Ω coaxial cable to this M-type ("SO-
239") connector.
DC IN Jack
This is the DC power supply connection for the transceiver. Use the supplied DC cable
to connect directly to a DC power supply, which must be capable of supplying at least
25 A @13.8 VDC.
FT-891 Operating Manual
Application for FCC / IC
FCC ID: K6620651X50 / IC: 511B-20651X50
Rear Panel Connectors
13