Cobra Electronics 148 GTL Manuel D’Utilisation
Section I Introduction
FREQUENCY RANGE
The COBRA 148GTL transceiver represents one of the most advanced SSB/AM two-
way radios ever designed for use as a Class D station in the Citizens Radio Service.
This unit features advanced Phase Lock Loop (PLL) circuitry, which is used in the AM
mode and in the upper and lower single sideband modes, providing complete cover
age of all 40 channels shown below.
The COBRA 148GTL transceiver represents one of the most advanced SSB/AM two-
way radios ever designed for use as a Class D station in the Citizens Radio Service.
This unit features advanced Phase Lock Loop (PLL) circuitry, which is used in the AM
mode and in the upper and lower single sideband modes, providing complete cover
age of all 40 channels shown below.
Channel
Channel Frequency
in MHz
1
26.965
2
26.975
3
26.985
4
27.005
5
27.015
6
27.025
7
27.035
8
27.005
9
27.065
10
27.075
11
27.085
12
27.105
13
27.115
14
27.125
15
27.135
16
27.155
17
27.165
18
27.175
19
27.185
Channel
Channel Frequency
in MHz
21
27.215
22
27.225
23
27.255
24
27.235
25
27.245
26
27.265
27
27.275
28
27.285
29
27.295
30
27.305
31
27.315
32
27.325
33
27.335
34
27.345
35
27.355
36
27.365
37
27.375
38
27.385
39
27.395
40
27.405
20
27.205
The COBRA 148GTL has a vastly superior receiver which includes an RF gain con-
trol and noise blanker circuitry effective in both AM and SSB modes., and an auto-
matic noise limiter effective in the AM mode. The receiver also features increased
protection against cross modulation and strong adjacent channel signals.
trol and noise blanker circuitry effective in both AM and SSB modes., and an auto-
matic noise limiter effective in the AM mode. The receiver also features increased
protection against cross modulation and strong adjacent channel signals.
To obtain maximum performance please read carefully the descriptions and oper-
ating instructions in this manual.
ating instructions in this manual.
2
The Citizens Band lies between the shortwave broadcast and 10-meter Amateur
radio bands, and was established by law in 1949. The Class D two-way communi-
cations service was opened in 1959. (CB also includes a Class A citizens band and
Class C remote control frequencies.)
FCC regulations permit only “transmissions” (one party to another) rather than
“broadcasts” (to a wide audience). Thus, advertising is not allowed on CB Channels
because that is “broadcasting.”
radio bands, and was established by law in 1949. The Class D two-way communi-
cations service was opened in 1959. (CB also includes a Class A citizens band and
Class C remote control frequencies.)
FCC regulations permit only “transmissions” (one party to another) rather than
“broadcasts” (to a wide audience). Thus, advertising is not allowed on CB Channels
because that is “broadcasting.”
NOTICE:
Replacement or substitution of transistors, regular diodes or
other parts of a unique nature, with parts other than those
recommended by Cobra, may cause violation of the techni-
cal regulations of Part 95 of the FCC Rules, or violation of
Type Acceptance requirements of Part 2 of the Rules.
Citizens Band (CB) Radio operators are no longer required to
obtain an FCC license to operate their CB equipment or
provide station identification.
An operator of a CB radio station is required to comply
with the communications act and with the rules of CB
Radio Operation.
Replacement or substitution of transistors, regular diodes or
other parts of a unique nature, with parts other than those
recommended by Cobra, may cause violation of the techni-
cal regulations of Part 95 of the FCC Rules, or violation of
Type Acceptance requirements of Part 2 of the Rules.
Citizens Band (CB) Radio operators are no longer required to
obtain an FCC license to operate their CB equipment or
provide station identification.
An operator of a CB radio station is required to comply
with the communications act and with the rules of CB
Radio Operation.
Serial No.
Date of Purchase
Dealer Name
Keep this manual for detailed information about your Cobra CB radio.
SAVE YOUR SALES RECEIPT, THE CARTON AND “PACKING”
MATERIALS FOR POSSIBLE FUTURE USE.
MATERIALS FOR POSSIBLE FUTURE USE.
The CB Story
1