12 FT-891 Operating Manual
Control Panel Switch & Connectors
SP-PH switch
If you use earphones with this transceiver, move this switch to the “PH” position before
inserting the earphone plug into the SP/PH Jack, to prevent injury your ears.
SP/PH jack
This 3.5-mm, 2-pin jack provides adjustable audio
output for an external speaker
(
4 Ω ~ 16 Ω impedance
)
or earphones. The audio level varies according to the
setting of the front panel AF knob.
Important Note: When an earphone plug is inserted
into this jack, the SP-PH slide switch
(
located on the back side of
the front panel
)
MUST BE set to the “PH” position, to prevent the
possibility of injury to your ears.
Adjusting the Main tuning DIAL torque
The torque
(
drag
)
of the Main Tuning DIAL knob may be adjusted for your operating
preferences. Slide the lever clockwise to reduce the drag, or counter-clockwise to
increase the drag.
Reduce
Increase
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