Installing An Antenna; Installing An External Speaker; Operation; Display - Cobra 75 All Road Owner's Manual

Installation and Start-Up

Installing An Antenna

Be sure the antenna is properly connected to the radio
before transmitting. Prolonged transmitting without an
antenna, or use of a poorly matched antenna, could cause
damage to the CB.
For the most reliable operation and maximum range, Cobra
recommends using a vertically polarized, quarter wavelength
whip antenna. Shorter, loaded-type whips are adequate when
maximum range is not required.
NOTE: Mobile installations (cars, trucks, boats, etc) should be
Quarter Length
Whip Antenna
• A standard antenna connector (Type SO-239) is provided on
the black box for easy connection to a standard PL-259
cable termination.
• Cobra antenna models are recommended; order directly
from Cobra at www.cobra.com or contact your local
Cobra dealer.
• For maximum efficiency in boat installations, a ground plane
is required, unless the vessel has a steel hull.
Consult your CB dealer for information regarding an adequate
grounding system.
Shorter Length
Whip Antenna

Installing an External Speaker

1. Mount external speaker in desired location.
2. Plug into the back of the CB transceiver.
The external speaker should have 4-8 Ohms impedance and be
able to handle at least 4 Watts.
NOTE: The external speaker is a Bridge Tied Load (BTL) design.
6
made only with a non-directional antenna system.
Do not short the speaker wires to ground as it may
damage the speaker amplifier.

Operation

Display

A B
F
DX NB/ANL VOX AM
AQ
G
RX
WX!
H
SWR
I
NR
1
J
27.2050MHz
K L
DX / LO
A.
NB, ANL, NB / ANL
B.
VOX
C.
AM / FM
D.
Bluetooth Connection Indicator*
E.
RX / TX Meter**
F.
Auto Squelch
G.
Weather Alert Icon
H.
Key Lock Icon
I.
*When disconnected the LNK icon will show a strikethrough
(a line through the icon)
**TX Meter appears when using PTT
C D E
99
LNK
Q
MEM
2 3 inf
P
HD PTT
M N O
DSP enabled ON
J.
Channel Frequency
K.
SWR Meter
L.
Channel Scan Activated
M.
Audio Path
N.
Wireless PTT Button enabled
O.
Memory Channel Indicator
P.
Channel Number
Q.
7