![background image](http://html1.mh-extra.com/html/cobra/148gtl-dx/148gtl-dx_instruction-manual_2630887007.webp)
Section II
Spécifications
GENERAL
Channels
Frequency Range
Frequency Control
Frequency Tolérance
Frequency Stability
Operating Température Range
Microphone
120 FM, 120 AM, 120 LSB, 120 USB,
120 CW.
Low Band, 26.515 to 26.955 MHz.
Mid Band, 26.965 to 27.405 MHz.
Hi Band, 27.415 to 27.855 MHz.
Phase Lock Loop (PLL) Synthesizer.
0.005%.
0
.
001
%.
-30°C to +50°C.
Plug-in dynamie; with push-to-talk switch
and coiled cord.
, .
Input Voltage
13.8V DC nominal, 15.9V max., 11.7V min.
(positive or negative ground).
Transmit:
AM full mod., 2.2A.
SSB 12 watts PEP output, 2Â.
Receiver:
Squelched, 0.3 A.
Maximum audio output, 0.7A.
2-3/8 "(H) x 7-7/8"(W) x 9-l/4"(D).
5 lbs.
UHF, S0239.
Illuminated; indicates relative output power,
received signal strength, and SWR.
Size
Weight
Antenna Connector
Meter (3-in-l)
TRANSMITTER
Power Output
AM/FM/CW, 5. watts.
SSB, 12 watts, PEP.
Modulation
High-and low-level Class B, Amplitude Modu
lation: AM. Variable capacitance Frequen
cy Modulation: FM.
Intermodulation Distortion
SSB: 3rd order, more than-25 dB.
5th order, more than -35 dB.
SSB Carrier Suppression
55 dB
Unwanted Sideband
50 dB
-
6
-
Summary of Contents for 148GTL-DX
Page 32: ...со SO AOJ VR2 BLOCK DI AGRAM ...
Page 33: ...SCHEMATIC DIAGRAM ...
Page 41: ...Parts Layout Top View Î37 2SB525C 1 4 1 5 ...
Page 42: ...PARTS LAYOUT Top View ...
Page 43: ...ADDED PARTS MAIN PCB Bottom View PC 879AB ...
Page 44: ...COPPER PATTERN SWR PCB CH SW PCB LED PCB CD ...
Page 48: ...го w INTERNAL DIAGRAM IC s MB87I9 ...
Page 49: ...INTERNAL DIAGRAM IC s го А ...
Page 50: ...INTERNAL DIAGRAM IC s S 0 4 2 P 25 ...
Page 58: ...со го BLOCK DI AGRAM ...
Page 59: ...PB OIO SCHEMATIC DIAGRAM ...
Page 60: ...WiRING DIAGRAM 3 5 3 6 P C 881 P C 8 8 0 ...
Page 66: ...COPPER PATTERN MAIN PCB ...
Page 68: ...P B O I O ADDED PARTS MAIN PCB H fs il 8 46 ...
Page 70: ...COPPER PATTERN SUB ASSY PCB s ...
Page 71: ...PARTS LAYOUT MIC JACK 49 ...
Page 74: ...INTERNAL DIAGRAM IC s MC14008B 1 4 Cou l 13 S 4 13 S 3 11 S2 10 S 1 16 15 14 13 12 11 10 9 52 ...
Page 75: ...сл С О INTERNAL DIAGRAM IC s OSC out Г 2 out FS PO PI P2 P3 PA P5 P6 P7 P8 MC145106 ...
Page 76: ...INTERNAL DIAGRAM IC s 14 0UT4 13 I N 4 12 lN 4 11 VEE 10 IN 3 9 I N 3 8 0UT3 TA75902P 54 ...