Cobra Electronics PR240 General Specifications, FRS/GMRS Frequency Allocation and Compatibility

Page 17

 

 

 

 

 

 

 

Introduction

Operation

Customer Assistance

Warranty

 

General Specifications

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 communicate 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 GMRS Models

B = Channel No. For 15

Channel GMRS Models

C = Type of Radio Service

D = Frequency in MHz

E = Power in Watts

A

B

C

D

E

1

1

FRS/GMRS

462.5625

1.0

2

2

FRS/GMRS

462.5875

1.0

3

3

FRS/GMRS

462.6125

1.0

4

4

FRS/GMRS

462.6375

1.0

5

5

FRS/GMRS

462.6625

1.0

6

6

FRS/GMRS

462.6875

1.0

7

7

FRS/GMRS

462.7125

1.0

8

 

FRS

467.5625

0.5

9

 

FRS

467.5875

0.5

10

 

FRS

467.6125

0.5

11

 

FRS

467.6375

0.5

12

 

FRS

467.6625

0.5

13

 

FRS

467.6875

0.5

14

 

FRS

467.7125

0.5

15

11

GMRS

462.5500

1.0

16

8

GMRS

462.5750

1.0

17

12

GMRS

462.6000

1.0

18

9

GMRS

462.6250

1.0

19

13

GMRS

462.6500

1.0

20

10

GMRS

462.6750

1.0

21

14

GMRS

462.7000

1.0

22

15

GMRS

462.7250

1.0

B. Receiver

Unit

Nominal

 

 

1.Sensitivity

 

For 12 DB SINAD

. dBm

-121

 

For Call Signal Detection . . .

. dBm

-121

2.

Max. Audio Output

 

 

 

@10% THD

. mW

200

3.

Max. S/N Ratio

 

 

 

@ 1mV RF Input

. . dB

50

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

40

8.

Intermodulation Rejection . .

. . dB

65

9.

Spurious Response Rejection

. dB

55

 

 

Unit

Nominal

C. Transmitter

 

 

1.Power

 

GMRS

.W

1

 

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

-12

 

@ 2500 HZ

. dB

+6

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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Image 17
Contents PR240 PR350WX Automated Help Desk For Assistance In the U.S.ACustomer Assistance Operators English and Spanish a.m. to 600 p.m. CTProduct Features Backlit LCD Display FeaturesBatteries To Install or Replace BatteriesCaring for Your microTALK Radio Auto Battery Save Battery LowTurning On Your microTALK Radio To Turn On Your Radio Communicating with Another PersonPR 350 WX Scrolling Through Mode FunctionChannels To Select a ChannelCtcss Privacy Codes When You are Finished TalkingTo Select a Privacy Code Listening for a ResponseCall Button Volume To Adjust the VolumePress and release the Call button NOAA* All Hazards Radio Channels and Alert PR 350 WX onlyUse the Channel Up or Channel Down Press the Mode button to proceed to other functionsTo Listen to All Hazards Radio Channels PR 350 WX only During this time, you can ScanTo Scan Main Channels To Scan Privacy Codes To Change a Call Tone Setting Call Tone SettingsRoger Beep Confirmation Tone To Turn Roger Beep On or OffPress the Light/Max Range button less than five 5 seconds Display IlluminationAuto Squelch/Maximum Range Press and hold the Lock button for two 2 seconds Lock FunctionTo Attach Your Speaker/Microphone Insert the plug into the Speaker/ Microphone jackYour microTALK radio has a range MicroTALK RangeFRS/GMRS Frequency Allocation and Compatibility General SpecificationsLicensing, Assistance & Warranty Product Service Questions Accessories & Order Form Page Page Page Page Page Page Page Page Page