Uniden PC78XL User Manual page 5

pc78xl.qxd 2/25/99
16. NB/ANL-ANL/OFF : Reduces external noise and interference from
vehicle ignition systems.
17. S/RF-SWR/CAL : Selects meter function. S/RF - normal; SWR and
CAL are for SWR measurements only. See page 8 for calibration
procedures.
18. Multi-function Meter : Measures SWR , RF and S signal strength.
19. POWER : Connects DC power to transceiver.
20. EXT. SP .: Connects optional 8-ohm 4-watt speaker to remotely
monitor receiver.
When the external speaker is plugged in, the
internal speaker is off.
21. PA SP .: Connects external 8-ohm, 4-watt speaker to use as public
address system.
To prevent acoustic feedback, separate the
microphone from the speaker when operating
the PA at high output levels.
22. ANT. : Connects antenna cable to transceiver.
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