IFR COM-120C - Page 49

3-4
SECTION 3
COMPOSITE
7. ANTENNA Connector
Input connector to monitor "off-the-air" signals. Also used as a connection for low
power (0.25 W maximum) signals.
CAUTION:
DO NOT EXCEED 0.25 W MAXIMUM CONTINUOUS INPUT OR DAMAGE TO
THE COM-120C MAY RESULT.
8. SQUELCH Control
Adjusts squelch level of received signal.
9. VOLUME Control
Controls volume of speaker.
10. PHONES Connector
Provides access for using Headphones when audio signal is provided to speaker.
11. DATA SCROLL Spinner
Allows operator to scroll through current test mode operation screen, scroll
through lists of parameter selections and actively increase and decrease one digit
of numeric parameters. Current test mode operation screen changes with entered
data; changed parameter becomes current default unless ENTER Key is pressed.
Pressing ESC Soft Function Key returns changed parameter to previous setting.
12. T/R Connector
50
Ω Connector for high power input or output signals.
CAUTION:
DO NOT EXCEED 200 W MAXIMUM CONTINUOUS INPUT OR DAMAGE TO
THE COM-120C MAY RESULT.
13. AUX RF OUT Connector
50
Ω Auxiliary output connector for RF Signals.
CAUTION:
DO NOT EXCEED 0.25 W MAXIMUM CONTINUOUS INPUT OR DAMAGE TO
THE COM-120C MAY RESULT.