Cobra Electronics FRS121C General Specifications, Cobra line Quality products includes

Operation

General Specifications

A. FRS Frequency

Allocation

A = Channel No. For

14 Channel FRS Models

B = Frequency in MHz

C = Power in Watts

A	B	C
1	462.5625	0.5
2	462.5875	0.5
3	462.6125	0.5
4	462.6375	0.5
5	462.6625	0.5
6	462.6875	0.5
7	462.7125	0.5
8	467.5625	0.5
9	467.5875	0.5
10	467.6125	0.5
11	467.6375	0.5
12	467.6625	0.5
13	467.6875	0.5
14	467.7125	0.5

The Cobra® line

of quality products includes:

CB Radios, microTALK® Radios, Radar/Laser Detectors,

Safety Alert® Traffic Warning

Systems,

Accessories,

GPS (Global Positioning

System),

HighGear™ Accessories

B. Receiver			Unit	Nominal
1.	Sensitivity
	For 12 DB SINAD	. .	dBm	-122
	For Call Signal Detection . . .	. .	dBm	-122
2.	Max. Audio Output
	@ 10% THD	. .	mW	350
3.	Max. S/N Ratio
	@ 1mV RF Input	. .	. dB	40
4.	Squelch
	a) Sensitivity	dB sinad		10
	b) Attack Time		. mS	120
	c) Closing Time		. mS	200
5.	Audio Frequency Response
	@ 300 HZ	. .	. dB	-3
	@ 2500 HZ	. .	. dB	-10
6.	Signal Displacement BW . . .	. +/-KHz		6
7.	Adjacent Channel Rejection . . .		. dB	50
8.	Intermodulation Rejection . .	. .	. dB	65
9.	Spurious Response Rejection .	. .	. dB	55
C. Transmitter			Unit	Nominal
1.	Power	. .	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	-12
	@ 2500 HZ	. .	. dB	3
6.	Audio Distortion	. . %.		3
7.	Hum Noise	. .	. dB	30
8.	Transient Frequency Behavior
	a) TX On		. mS	30
	b) TX Off		. mS	5
D. Power Supply			Unit	Nominal
1.	Battery Life (5:5:90 RATIO)
	With Alkaline Batteries		. HR	24
2.	Battery Operating Range . . .	. .	. V 4.2 – 6.0

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