Midland 77-250CXL Owner's Manual page 11

40-channe! mobile citizens band transceiver
Hide thumbs Also See for 77-250CXL:
Table of Contents

Advertisement

reception sensitivity (range) of your CB.
To.decrease RF Gain—to reduce
interference, for example, in congested
urban areas—rotate counter clockwise.
For full sensitivity position. The RF Gain
switch affects reception only. It will not
affect transmitter output power.
0 To Measure SWR.
1. Set the slide switch to SWR-CAL
(forward) position.
2. Activate the transmitter (by pressing
•the microphone push-to-talk bar) and
rotate the calibrate control to set the
meter to the right side "SET" position.
3. Set the slide switch to SWR position
and read the SWR. For example, a
reading of 1.5 actually means an SWR of
1.5:1. SWR of 3.0:1 or higher indicates
severe antenna mismatch.
[U Lighted LED Digital Channel
Indicator. Clearly displays the channel
selected by use of the selector dial just
below.
Turn the dial to the right to select a
higher-numbered channel spectrum, left
to select,channels below the number
indicated.
B Brite-Dim Switch. Dims or brightens
lighted controls for more comfortable day
or night visibility
ESP-OFF.
ESP2™ noise filter adds heavy
duty filtering to reduce on air and SKIP noise,
see how ESP2™ works on page 16.
[S NB ON-OFF. Noise blanker switch
screens out atmospheric noise.
[Gj ANL/OFF/PA Switch. Switches your
CB speaker system from a CB function,
using the internal, main-unit speaker, to a
Public Address function, using an
external PA speaker, and back again.
When turned on, it operates in the
receiver to reduce atmospheric and
ignition noise.
0 CH9-OFF-CH19 Memory. Switch
instantly selects channel 9 (highway
emergency channel) or channel 19
(highway talk channel).
Note: Keep in off position for normal 40
channel operation.
0 S/RF-SWR-CAL Meter Switch.
Selects the mode of th-e SWR/CAL-S/RF
Meter. Rotate to right.
OiM
13

Advertisement

Table of Contents
loading

Table of Contents