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Last modified 2024-10-31

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Cobra 148 GTL (By Dynascan. Older 5-pin side mike)

A picture of Cobra 148 GTL (By Dynascan. Older 5-pin side mike)

SPECIFICATIONS

GENERAL
Type:Citizen band transceiver
Frequency range:26.965-27.405 MHz
Channels / tuning steps:40
Mode:AM / SSB
Frequency control:PLL (MB8719)
Frequency stability:0.001% @ -30 to +50°C (-22 to +122°F)
Clarifier or Delta tune:±1.5 KHz "Voice lock"
Power supply:11.7-15.9 VDC (Male 3-pin jack)
Current drain / power consumption:RX: 250-600 mA
TX: Max 2.2 A
Antenna impedance / connector:50 ohm / SO-239
Dimensions (W*H*D):200*60*235 mm (7.87*2.38*9.25")
Weight:2.27 Kg (5 lb)
Other features:PA. ANL/NB. Dimmer. SWR-meter.




RECEIVER SECTION
Receiver system: Single conversion superheterodyne (SSB)
IF: 7.8 MHz
Double conversion superheterodyne (AM)
1st IF: 7.8 MHz
2nd IF: 455 KHz - Ceramic filter: Murata CFW455H
Sensitivity: AM: 0.5 uV (10 dB S+N/N)
SSB: 0.25 uV (10 dB S+N/N)
Squelch sensitivity:Less than 0.25 uV (Treshold)
Selectivity: AM:
3 KHz (-6 dB)
9 KHz (-50 dB)
SSB:
1.1 KHz (-6 dB)
2.3 KHz (-60 dB)
Image rejection:65 dB
AF output power / speaker:4 W at ?% distortion / 8 ohm
External speaker connector:TS "Minijack" (3.5 mm), 8 ohm




TRANSMITTER SECTION
RF output power: AM: 4 W
SSB: 12 W (PEP)
Modulation system: AM: High and low-level, class B
SSB: Balanced
Max FM deviation (Factory set):No FM
Spurious emissions:Better than -? dB
Microphone impedance / connector:? ohm / 5-pin (Side mounted male locking ring jack)
Microphone input level:? mV




MISCELLANEOUS
Manufactured:Taiwan, Philippines and Malaysia, 197x-199x (Discontinued)
Main PCB: PC-412 by Uniden
Single sided with through-hole components
Sub PCBs: Early
PC-416AA - Channel selector board
? - LED channel display board
Additional info: New price 1984 in the US: $169.95
New price 1995 in the US: $149.95
Related documents: User manual (6.8 MB)
PLL: MB8719
RF driver: 2SC1306 or 2SC2166
RF final: 2SC1969
Market / Approval: USA (Early)
FCC Data: 313
USA (Later)
FCC ID: BB03K2 148GTL
Sams Photofact #:CB-249 (February 1979)
Modifications and fixes:Tech bulletin #1226 (651 KB)
Reviews:
Options / Accessories:
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A rear picture of Cobra 148 GTL (By Dynascan. Older 5-pin side mike)