Cobra Electronics PR4000WX owner manual MicroTALK Range, General Specifications

Page 14

Operation

Maximum Range

Using Your Radio

microTALK® Range

 

 

 

 

 

 

 

Introduction

Operation

Customer Assistance

Warranty

 

General Specifications

Reduced Range

Reduced Range

Your microTALK® radio has a range of up to seven (7) miles (11 km). Your range will vary depending on terrain and conditions.

In flat, open country your radio will operate at maximum range.

Buildings and foliage in the path of the signal can reduce the range of the radio.

Dense foliage and hilly terrain will further reduce the range of the radio.

On FRS channels 8 through 14, your radio automatically switches to low power, which will limit the range the radio can communicate.

Remember, you can achieve maximum range by using Maximum Range Extender. See page 22 for details.

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 = 3.0/2.0/0.5 (selectable) b = 0.5

A B CD E

B. Receiver

Unit

 

1. Sensitivity

For 12 DB SINAD . . . . . . . . . . dBm

For Call Signal Detection . . . . dBm

2. Max. Audio Output

@10% THD . . . . . . . . . . . . . . . mW

3. Max. S/N Ratio

@ 1mV RF Input . . . . . . . . . . . dB

4. Squelch

a) Sensitivity . . . . . . . . . . . . . . dBm b) Attack Time . . . . . . . . . . . . . mS c) Closing Time . . . . . . . . . . . . mS

5. Audio Frequency Response

@ 300 HZ . . . . . . . . . . . . . . . . . dB @ 2500 HZ . . . . . . . . . . . . . . . . dB

6. Signal Displacement BW . . . +/-KHz

7. Adjacent Channel Rejection . . . dB

8. Intermodulation Rejection . . . . dB

9. Spurious Response Rejection . dB

C. Transmitter

Unit

 

Nominal

-121 -121

200

50

-121

150

200

-3

-10 5 60 65 55

Nominal

1

1

FRS/GMRS

462.5625

a

1.

Power

 

 

 

2

2

FRS/GMRS

462.5875

a

 

 

GMRS

.W

3

 

3

3

FRS/GMRS

462.6125

a

 

 

. . . . . . . . . . . . . . . .FRS Only

.mW

500

 

4

4

FRS/GMRS

462.6375

a

 

2.

Carrier Frequency Stability . . .

±Hz

500

 

5

5

FRS/GMRS

462.6625

a

 

3.

Modulation Limiting

KHz

2.5

 

6

6

FRS/GMRS

462.6875

a

 

 

 

4.

Carrier Attack Time

. mS

80

 

7

7

FRS/GMRS

462.7125

a

 

5.

Audio Frequency Response

 

 

 

8

 

FRS

467.5625

b

 

 

 

 

 

 

 

@ 300 HZ

. dB

-12

 

9

 

FRS

467.5875

b

 

 

 

 

@ 2500 HZ

. dB

+6

 

10

 

FRS

467.6125

b

 

6.

Audio Distortion

. %

3

 

11

 

FRS

467.6375

b

 

 

7.

Hum Noise

dB

30

 

12

 

FRS

467.6625

b

 

 

 

 

8.

Transient Frequency Behavior

 

 

 

13

 

FRS

467.6875

b

 

 

 

 

 

a) TX On

mS

30

 

14

 

FRS

467.7125

b

 

 

 

15

11

GMRS

462.5500

a

 

. . . . . . . . . . . . . . . .b) TX Off

. mS

5

 

 

 

 

 

 

16

8

GMRS

462.5750

a

 

 

 

 

 

 

19

13

GMRS

462.6500

a

 

 

Unit

Nominal

 

17

12

GMRS

462.6000

a

D. Power Supply

 

 

 

18

9

GMRS

462.6250

a

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20

10

GMRS

462.6750

a

 

1.

Battery Life (5:5:90 RATIO)

 

 

 

21

14

GMRS

462.7000

a

 

 

 

 

With Alkaline Batteries

HR

24

 

22

15

GMRS

462.7250

a

 

 

 

 

2.

Battery Operating Range

V

4.2 - 6.0

 

 

 

 

 

 

24 English

Nothing comes close to a Cobra25

Image 14
Contents PR4000WX Automated Help Desk Making Life Easier & SaferFor Assistance In the U.S.A Customer Assistance OperatorsProduct Features Caring for Your microTALK Radio FeaturesBatteries To Install or Replace Batteries Turning On Your microTALK Radio To Turn On Your Radio Using Your RadioScrolling Through Mode Function Channels To Select a ChannelListening for a Response When You are Finished Talking VolumeTo Adjust the Volume To Select a Privacy CodeNOAA* All Hazards Radio Channels and Alert To Activate Stopwatch ModeTo Activate Split-Time in Stopwatch Mode To Listen to All Hazards Radio channelsTo Activate Your microTALK Radio Alarm To Activate Clock ModeAlarm To Set the AlarmTo Set the Sensitivity To Turn VOX Mode On or OffVoice Activated Transmit VOX Channel MemoryTo Scan Main Channels To Recall a Stored Memory Channel LocationScan To Scan Privacy CodesTo Change a Call Tone Setting To Change Call SettingsCall Tone Settings To Scan Memory LocationsCompass Icon 8-Point Digital Compass Roger Beep Confirmation ToneTo Turn Roger Beep On or Off Keystroke TonesTo Turn the Lock Button On or Off To Use Your CompassLock Function Display Illumination To Illuminate Your DisplayFlat, open country your radio will operate at maximum range General SpecificationsMicroTALK Range English Nothing comes close to a CobraLimited 1-Year Warranty For Products Purchased in the U.S.A Licensing, Assistance & WarrantySafety Information for microTALK Radios Normal PositionTotal Order Form & AccessoriesEnglish Optional Accessories Cobra line of quality products includesPR4000WX Una vida más sencilla y segura Llamada Características del productoTransmisión ModalidadBaterías Características Pantalla de cristal líquido iluminadaCuidado del radio microTALK Para instalar o reemplazar las bateríasUso del radio Selección de potencia de salida alta, mediana o baja Código de comunicación privada CtcssBotón de llamada Para escuchar a la otra personaPara activar el aviso de peligro Canales de radio y aviso de peligro de la NoaaCronómetro Para activar la modalidad de cronómetroAlarma RelojMemoria de 10 canales Sistema VOXTransmisión activada por voz Para encender y apagar la modalidad VOXPara rastrear los canales principales RastreoPara leer un canal almacenado en una localidad de memoria Reanudar el rastreo de canalesRegresará a la modalidad de espera Aviso vibratorio VibrAlert y señales de llamadaDiez señales de aviso de llamada Para cambiar los avisos de llamadaSonido de teclas Aviso sonoro de cambioBrújula digital de 8 puntos Receptáculos para altoparlante y micrófono Función de bloqueoIluminación de la pantalla Reducción automática de ruido de fondo y alcance máximoAlcance del radio microTALK Especificaciones generalesInformación de seguridad de los radios microT ALK Licencias, ayuda y garantíaPreguntas sobre el servicio del producto Posición normalLa línea de productos de calidad Cobra también incluye Formularios de pedidos y accesoriosTotal Pedidos en los EE.UU Para pedidos con tarjeta de crédito