User's Manual

24
English
25
Nothing comes close to a Cobra
®
General Specifications
•
Nominal
Unit
Nominal
Unit
C. Transmitter
1. Power
GMRS . . . . . . . . . . . . . . . . . . . .W 2
FRS Only . . . . . . . . . . . . . . . . .mW 500
2. Carrier Frequency Stability . . . ±Hz 500
3. Modulation Limiting
. . . . . . . . kHz 2.5
4. Carrier Attack Time . . . . . . . . . mS 80
5. Audio Frequency Response
@ 300 Hz . . . . . . . . . . . . . . . . . dB -10
@ 2500 Hz . . . . . . . . . . . . . . . . dB +3
6. Audio Distortion
. . . . . . . . . . . .
%
3
7. Hum Noise . . . . . . . . . . . . . . . . dB 35
8.
T
ransient Frequency Behavior
a) TX On
. . . . . . . . . . . . . . . . .
mS
30
b) TX Off . . . . . . . . . . . . . . . . . mS 5
A. FRS/GMRS
Frequency
Allocation and
Compatibility
Important: Please note that Cobra
GMRS models with 15 Channels may
designate different channel numbers
for the same frequency. For example, a
Cobra 15 Channel GMRS model would
need to be tuned to Channel 11 in order
to comm
unicate with a 22 Channel GMRS
tuned to Channel 15. Please refer to the
chart below for channel/ frequency
number compatibility.
A = Channel No. for
22 Channel FRS/GMRS Models
B = Channel No. for
15 Channel GMRS Models
C = Type of Radio Service
D = Frequency in MHz
E = Power in Watts
a = 2.0/0.5 (selectable)
b = 0.5
AB C D E
1 1 FRS/GMRS 462.5625 a
2 2 FRS/GMRS 462.5875 a
3 3 FRS/GMRS 462.6125 a
4 4 FRS/GMRS 462.6375 a
5 5 FRS/GMRS 462.6625 a
6 6 FRS/GMRS 462.6875 a
7 7 FRS/GMRS 462.7125 a
8 FRS 467.5625 b
9 FRS 467.5875 b
10 FRS 467.6125 b
11 FRS 467.6375 b
12 FRS 467.6625 b
13 FRS 467.6875 b
14 FRS 467.7125 b
15
11
GMRS
462.5500
a
16 8 GMRS 462.5750 a
17
12
GMRS
462.6000 a
18 9 GMRS 462.6250 a
19
13
GMRS
462.6500 a
20 10 GMRS 462.6750 a
21
14 GMRS 462.7000 a
22 15 GMRS 462.7250 a
B. Receiver
1. Sensitivity
For 12 dB SINAD . . . . . . . . . . dBm -121
For Call Signal Detection . . . . dBm -121
2. Max. Audio Output
@ 10% THD . . . . . . . . . . . . . . mW 300
3. Max. S/N Ratio
@ 1mV RF Input . . . . . . . . . . . dB 45
4. Squelch
a) Sensitivity . . . . . . . . . . . . . . dBm -121
b) Attack Time . . . . . . . . . . . . . mS 150
c) Closing Time . . . . . . . . . . . . mS 200
5. Audio Frequency Response
@ 300 Hz . . . . . . . . . . . . . . . . . dB -3
@ 2500 Hz . . . . . . . . . . . . . . . . dB -10
6. Signal Displacement BW . . . . +/-kHz 5
7. Adjacent Channel Rejection . . . dB 50
8. Intermodulation Rejection . . . . dB 65
9. Spurious Response Rejection . dB 50
D. Power Supply
1. Battery Life (5:5:90 RATIO)
with Alkaline Batteries . . . . . . . HR 24
2. Batter
y Operating Range
. . . . . .
V
4.2 - 6.0
Nominal
Unit
Keystroke Tones On
Channel Buttons
Keystroke Tones
•
With Keystroke Tones turned on, your radio will sound
beeps each time you press a button or change a setting.
To change keystroke tones:
1. Press the Lock/Mode button until the
Keystroke Tones icon flashes on the display.
The current
on or off setting is displayed.
2. Press the Channel Up or Channel Down
button to turn keystroke tones on or off.
3. Choose one of the following:
a. Press the Lock/Mode button to enter the
new setting and return to
Standby mode.
b. Press the Hi•Low/Enter button to enter the
new setting and return to
Standby mode.
Lock/Mode Button
Mode Functions and
General Specifications
Operation Customer Assistance WarrantyIntroduction Operation