Cobra Electronics PR245 owner manual Power Supply

Mode Functions

Operation

Five (5) Call Tone Settings

•

You can choose between five (5) different Call Tone Settings to transmit a unique call alert.

Mode/Power Button To Change A Call Tone Setting:

1.Press the Mode/Power button until the letter “C” and the current call tone number (01 through 05) is displayed. The current call tone will sound for one (1) second.

Call Tone Setting

2. Press the Channel Up or Channel Down button to hear the other call tone settings.

3. Choose one (1) of the following: a. Press the Mode/Power button to

Channel Button

enter the new setting and proceed to other functions.

b. Press the Lock button to enter the new

setting and return to Standby mode.

Roger Beep Confirmation Tone

•

Your listener will hear an audible tone when you release the Talk button. This alerts the other party that you are finished talking and it is OK for them to speak.

Mode/Power Button To Turn Roger Beep On Or Off:

	1.	Press the Mode/Power button until the
		Roger Beep icon flashes. The current
		On or Off setting is displayed.
	2.	Press the Channel Up or Channel Down
Roger Beep Off
		button to select roger beep On or Off.
	3.	Choose one (1) of the following:
		a. Press the Mode/Power button to enter the

new setting and return to Standby mode.

Channel Button

b. Press the Lock button to enter the new

setting and return to Standby mode.

Introduction			Operation			Customer Assistance		Warranty
General Specifications											•
	Frequency					B. Receiver				Unit	Nominal
A. FRS/GMRS
	Allocation and
					1.		Sensitivity
	Compatibility
							For 12 dB SINAD			dBm	-121
Important: Please note that Cobra®							. . .For Call Signal Detection		.		-121
					2.		Max. Audio Output
GMRS models with 15 Channels may
							@ 10% THD			mW	200
designate different channel numbers for
					3.		Max. S/N Ratio
the same frequency. For example, a
							@ 1mV RF Input . . .			. dB	50
Cobra® 15 Channel GMRS model would
need to be tuned to Channel 11 in order					4.		Squelch
to communicate with a 22 Channel GMRS							a) Sensitivity			dBm	-121
tuned to Channel 15. Please refer to the							b) Attack Time			. mS	150
chart below for channel/frequency							c) Closing Time			. mS	200
number compatibility.					5.		Audio Frequency Response
A = Channel No. For							@ 300 Hz			. dB	-10
							@ 2500 Hz			. dB	-10
	22 Channel GMRS Models
					6.		Signal Displacement BW		+/-kHz		5
B = Channel No. For 15 Channel
	GMRS Models				7.		Adjacent Channel Rejection .		.	. dB	40
C = Type of Radio Service					8.		Intermodulation Rejection . .		.	. dB	65
D = Frequency in MHz					9.		Spurious Response Rejection			. dB	55
E = Power in Watts
						C. Transmitter				Unit	Nominal
A	B	C	D	E
1	1	FRS/GMRS	462.5625	1.0
2	2	FRS/GMRS	462.5875	1.0	1.		Power
3	3	FRS/GMRS	462.6125	1.0			. . . . . .GMRS			.W	1
4	4	FRS/GMRS	462.6375	1.0			. . . . . . . . . . . . . . . . .FRS Only				500
5	5	FRS/GMRS	462.6625	1.0	2.		. . .Carrier Frequency Stability				500
6	6	FRS/GMRS	462.6875	1.0	3.		. . . . . . . .Modulation Limiting
7	7	FRS/GMRS	462.7125	1.0	4.		. . . . . . . . .Carrier Attack Time				80
8		FRS	467.5625	0.5	5.		Audio Frequency Response
9		FRS	467.5875	0.5			. . . . . . . . . . . . . . . .@ 300 Hz			. dB	-12
							@ 2500 Hz			dB	+6
10		FRS	467.6125	0.5
11		FRS	467.6375	0.5	6.		. . . . . . . . . . . .Audio Distortion
					7.		Hum Noise			dB	30
12		FRS	467.6625	0.5
13		FRS	467.6875	0.5	8.		Transient Frequency Behavior			mS	30
							a) TX On
14		FRS	467.7125	0.5
							b) TX Off			. mS	5
15	11	GMRS	462.5500	1.0
16	8	GMRS	462.5750	1.0
										Unit	Nominal
17	12	GMRS	462.6000	1.0		D. Power Supply
18	9	GMRS	462.6250	1.0
19	13	GMRS	462.6500	1.0
					1.		Battery Life (5:5:90 RATIO)
20	10	GMRS	462.6750	1.0
21	14	GMRS	462.7000	1.0			. . . . . .With Alkaline Batteries			. HR	24
					2.		Battery Operating Range			V	4.2 - 6.0
22	15	GMRS	462.7250	1.0

12 English Nothing comes close to a Cobra® 13