![E.F. Johnson Company 9800 SERIES Operating Manual Download Page 13](http://html.mh-extra.com/html/e-f-johnson-company/9800-series/9800-series_operating-manual_519195013.webp)
CONTROLS AND DISPLAY
13
Microphone Push-To-Talk (PTT) Switch (Not Shown) -
Push-
button on the microphone which is pressed to key the transmitter.
Speaker -
The internal speaker is located behind the grille. An optional
speaker can be connected to the external speaker jack located on the back.
Refer to “Speaker Jack” description which follows.
Rear Panel Jacks and Connectors
Antenna Jack -
Miniature UHF jack for connecting the 50-ohm
antenna.
Power Jack -
Connection point for the power cable which attaches to the
vehicle battery. A nominal 12-volt DC, negative ground power source is
required.
Speaker Jack -
Connection point for an optional external 4.7-ohm,
5-watt speaker. The internal speaker is automatically disabled when a
speaker is plugged into this jack.
Antenna
Jack
Speaker
Jack
Power
Jack