Uniden BEARCAT 680, Руководство пользователя

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3 on page 4) displays this data. Press and hold the PTT button on the
microphone to see the RF output power levels. Release the
PTT
button to
see incoming signal strengh.
reCeive
Be sure that the power source, antenna, and microphone
are properly connected before proceeding.
1. Turn unit
on
. Set
VOLUME
to a comfortable level.
2. Select
Channel
.
3. Set noise limitations as desired (ANL/NB) .
4. Adjust squelch.
ƒ
Turn
SQUELCH
fully clockwise so only strong signals can get
through.
ƒ
Turn SQUELCH fully counterclockwise until you hear a hiss. Every-
thing gets through - noise, weak signals, and strong signals.
ƒ
Turn
SQUELCH
back clockwise until the hiss stops. Only clearer
signals get through.
Set Squelch only when the radio is not receiving a strong signal.
5. Press LO/DX button to set the RF gain sensitivity to Local or
Distance.
6. Press
HI/LO
to adjust the microphone sensitivity (mic gain)
between LO and HIGH.
transmit
Perform a voltage Standing Wave Ratio (SWR) measurement prior to using the
transmitter. A SWR ratio in excess of 2:1 may damage the transmitter.
Be sure to read and understand Part 95, FCC Rules and Regulations, before
operating your transmitter.
1. Select a channel.
2. Press
HI/LO to adjust the microphone sensitivity (mic gain) be-
tween LO and HIGH.