Frequency Ranges; Uk 25 Ltd St Specifications - Cobra UK25 LTD ST Operating Instructions Manual

UK25LTDST-UK/English.qx 6/22/99 8:41 AM

Frequency Ranges

The CO B RA UK 25 LTD ST tra n s ce i ver re p re s e nts one of the most adva n ced FM two -
way ra d i o s.This unit fe at u res adva n ced Phase Lock Loop (PLL) circ u i t ry prov i d i n g
co m p l e te cove rage of all 40 CEPT and UK FM CB channels.
CEPT Frequencies
Channel Channel
CB Freq. CB Freq.
Channel In MHz Channel In MHz
1 26.965 21 27.215
2 26.975 22 27.225
3 26.985 23 27.255
4 27.005 24 27.235
5 27.015 25 27.245
6 27.025 26 27.265
7 27.035 27 27.275
8 27.055 28 27.285
9 27.065 29 27.295
10 27.075 30 27.305
11 27.085 31 27.315
12 27.105 32 27.325
13 27.115 33 27.335
14 27.125 34 27.345
15 27.135 35 27.355
16 27.155 36 27.365
17 27.165 37 27.375
18 27.175 38 27.385
19 27.185 39 27.395
20 27.205 40 27.405
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UK Frequencies
Channel Channel
CB Freq. CB Freq.
Channel In MHz Channel In MHz
1 27.60125 21 27.80125
2 27.61125 22 27.81125
3 27.62125 23 27.82125
4 27.63125 24 27.83125
5 27.64125 25 27.84125
6 27.65125 26 27.85125
7 27.66125 27 27.86125
8 27.67125 28 27.87125
9 27.68125 29 27.88125
10 27.69125 30 27.89125
11 27.70125 31 27.90125
12 27.71125 32 27.91125
13 27.72125 33 27.92125
14 27.73125 34 27.93125
15 27.74125 35 27.94125
16 27.75125 36 27.95125
17 27.76125 37 27.96125
18 27.77125 38 27.97125
19 27.78125 39 27.98125
20 27.79125 40 27.99125

UK 25 LTD ST Specifications

GENERAL
CHANNELS . . . . . . . . . . . . . . . . . . . . . . . CB - 40 CH
FREQUENCY RANGE (CEPT FM). . . . . 26.965 TO 27.405 MHz
FREQUENCY RANGE (UK FM). . . . . . . 27.60125 TO 27.99125 MHz
FREQUENCY TOLERANCE. . . . . . . . . . 0.005 %
FREQUENCY CONTROL . . . . . . . . . . . . PLL (PHASE LOCK LOOP) SYNTHESIZER
OPERATING TEMPERATURE
RANGE. . . . . . . . . . . . . . . . . . . . . . . . . . . -20° C TO + 55° C
MICROPHONE . . . . . . . . . . . . . . . . . . . . PLUG-IN DYNAMIC
INPUT VOLTAGE . . . . . . . . . . . . . . . . . . 13.2VDC nom.(positive or negative earth)
CURRENT DRAIN TRANSMIT: AM FULL MOD.,1.5A (MAXIMUM)
RECEIVE:SQUELCHED, 0.3A;FULL AUDIO
OUTPUT, 1.2A (NOMINAL)
SIZE . . . . . . . . . . . . . . . . . . . . . . . . . . . . .219 mmX 162 mmX 56 mm
(8-5/8"D X 6-3/8"W X 2-13/64"H)
WEIGHT . . . . . . . . . . . . . . . . . . . . . . . . . .1.8 kg. (4 LBS.)
ANTENNA CONNECTOR . . . . . . . . . . . .UHF; SO-239
METER . . . . . . . . . . . . . . . . . . . . . . . . . . .ILLUMINATED;INDICATES RELATIVE
POWER OUTPUT AND RECEIVED
SIGNAL STRENGTH
TRANSMITTER
POWER OUTPUT . . . . . . . . . . . . . . . . . .4 WATTS
MODULATION . . . . . . . . . . . . . . . . . . . .FM (FREQUENCY MODULATION)
FREQUENCY RESPONSE . . . . . . . . . . . .300 TO 3000 Hz
OUTPUT IMPEDANCE . . . . . . . . . . . . . .50 OHMS,UNBALANCED
RECEIVER
SENSITIVITY . . . . . . . . . . . . . . . . . . . . . . .LESS THAN 6dB µV FOR 20 dB SINAD
SELECTIVITY . . . . . . . . . . . . . . . . . . . . . .6 dB @ 7 kHz, 60 dB @ 10 kHz
IMAGE REJECTION . . . . . . . . . . . . . . . . .80 dB, TYPICAL
ADJACENT-CHANNEL REJECTION . . .60 dB, TYPICAL
IF FREQUENCIES . . . . . . . . . . . . . . . . . .DOUBLE CONVERSION:1ST: 10.695 MHz
2ND:455 kHz
AUTOMATIC GAIN CONTROL (AGC) .LESS THAN 10 dB CHANGE IN AUDIO
OUTPUT FOR INPUTS FROM 10 TO 50,000
MICROVOLTS
RF GAIN RANGE . . . . . . . . . . . . . . . . . . .40 dB
NOISE BLANKER . . . . . . . . . . . . . . . . . . .RF TYPE
SQUELCH . . . . . . . . . . . . . . . . . . . . . . . . .A D J U S TA B L E ;THRESHOLD LESS THAN 1µV
AUDIO OUTPUT POWER . . . . . . . . . . .4 WATTS
FREQUENCY RESPONSE . . . . . . . . . . . .300 TO 3000 Hz
DISTORTION . . . . . . . . . . . . . . . . . . . . . .LESS THAN 7% @3 WATTS @ 1000 Hz
BUILT-IN SPEAKER . . . . . . . . . . . . . . . . .8 OHMS,5W
E XTERNAL SPEAKER (NOT SUPPLIED) 8 OHMS; DISABLES INTERNAL SPEAKER
WHEN CONNECTED
PA SYSTEM
POWER OUTPUT . . . . . . . . . . . . . . . . . .4 WATTS INTO EXTERNAL SPEAKER
EXTERNAL SPEAKER FOR PA . . . . . . . .8 OHMS, 4 WATTS MINIMUM,
(NOT SUPPLIED)
(SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE)
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