Cobra Electronics 29 NW specifications Frequency Ranges NW Specifications

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Frequency Ranges

29 NW Specifications

 

 

The COBRA® 29 NW transceiver represents one of the most advanced AM two-way radios used as a Class D station in the Citizens Radio Service. This unit features advanced Phase Lock Loop (PLL) circuitry providing complete coverage of all 40 CB channels.

 

Channel

 

Channel

CB

Freq.

CB

Freq.

Channel

In MHz

Channel

In MHz

1

26.965

21

27.215

2

26.975

22

27.225

3

26.985

23

27.255

4

27.005

24

27.235

5

27.015

25

27.245

6

27.025

26

27.265

7

27.035

27

27.275

8

27.055

28

27.285

9

27.065

29

27.295

10

27.075

30

27.305

11

27.085

31

27.315

12

27.105

32

27.325

13

27.115

33

27.335

14

27.125

34

27.345

15

27.135

35

27.355

16

27.155

36

27.365

17

27.165

37

27.375

18

27.175

38

27.385

19

27.185

39

27.395

20

27.205

40

27.405

GENERAL

 

CHANNELS

CB - 40 CH

FREQUENCY RANGE

CB - 26.965 TO 27.405 MHZ

FREQUENCY TOLERANCE

0.005 %

FREQUENCY CONTROL

PLL (PHASE LOCK LOOP) SYNTHESIZER

OPERATING TEMPERATURE

 

RANGE

-30° C TO + 50° C

MICROPHONE

PLUG-IN DYNAMIC

INPUT VOLTAGE

13.8VDC nom. (positive or negative ground)

CURRENT DRAIN

TRANSMIT: AM FULL MOD., 1.5A (MAXIMUM)

 

RECEIVE: SQUELCHED, 0.3A;

 

FULL AUDIO OUTPUT, 1.2A (NOMINAL)

SIZE

.8-5/8” D X 7-9/32” W X 2-13/63” H

WEIGHT

.4 LBS.

ANTENNA CONNECTOR

.UHF; SO-239

METER

.ILLUMINATED; INDICATES RELATIVE

 

POWER OUTPUT, RECEIVED

 

SIGNAL STRENGTH AND VSWR

TRANSMITTER

 

POWER OUTPUT

.4 WATTS

MODULATION

.AM (AMPLITUDE MODULATION)

FREQUENCY RESPONSE

.300 TO 3000 HZ

OUTPUT IMPEDANCE

.50 OHMS, UNBALANCED

RECEIVER

 

SENSITIVITY

.LESS THAN 1 µV FOR 10dB (S+N) /N

SELECTIVITY

.6 dB @ 7 KHZ, 60 dB @ 10KHZ

IMAGE REJECTION

.80 dB, TYPICAL

ADJACENT-CHANNEL REJECTION . .

.60 dB, TYPICAL

IF FREQUENCIES

.DOUBLE CONVERSION: 1ST: 10.695 MHZ

 

2ND: 455 KHZ

AUTOMATIC GAIN CONTROL (AGC) .LESS THAN 10 dB CHANGE IN AUDIO

 

OUTPUT FOR INPUTS FROM 10 TO 50,000

 

MICROVOLTS

RF GAIN RANGE

.40 dB

NOISE BLANKER

.RF TYPE

SQUELCH

.ADJUSTABLE; THRESHOLD LESS THAN 1µV

AUDIO OUTPUT POWER

.4 WATTS

FREQUENCY RESPONSE

.300 TO 3000 HZ

DISTORTION

.LESS THAN 7% @3 WATTS @ 1000 HZ

BUILT-IN SPEAKER

.8 OHMS, 5W

EXTERNAL SPEAKER (NOT SUPPLIED) .8 OHMS; DISABLES INTERNAL SPEAKER WHEN CONNECTED

PA SYSTEM

POWER OUTPUT . . . . . . . . . . . . . . . . . . .4 WATTS INTO EXTERNAL SPEAKER EXTERNAL SPEAKER FOR PA . . . . . . . .8 OHMS, 4 W MIN.

(NOT SUPPLIED) . . . . . . . . . . . . . . . . . . .THE PA SPEAKER ALSO MONITORS THE RECEIVER; SEPARATE JACK PROVIDED

(SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE)

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Contents How to Use Your Cobra 29 NW Features of This ProductInstallation LocationMounting and Connection LocationMicrophone Connector Marine Installation Antennas Ignition Noise InterferenceCB Antenna CB AntennaSetting Channel Selector Setting Channel SelectorOperation Turning OnCalibrate For SWR Standing Wave Ratio Calibrate for SWR Standing Wave RatioTo Receive Selecting a ChannelMeter OFF Noise Blanker Automatic Noise Limiter Switch NB-ANL/ANL/OFF Noise Blanker/Automatic Noise Limiter SwitchTone Hi/Nor RF Gain Control Tone Hi/NorDimmer Switch Setting SquelchDimmer Switch Setting SquelchSetting Dynamike Setting DynamikeTransmit Select desired channelOutput outgoing signal while transmitting S/RF-SWR-CAL switch must be in the S/RF positionRF Meter RF MeterSet CB/PA switch to PA position Adjust PA speaker volume with the Dynamike controlPA Public Address PA Public AddressHome And Office Set-Up Temporary Mobile Set-Up Base Station Operation From 120V AC House CurrentTemporary Mobile Set-Up Base Station Operation From 120V AC House CurrentHow Your CB Can Serve You Few Rules You Should Know Channel Emergency MessagesCB 10-Codes CB 10-CodesFrequency Ranges NW Specifications Limited Two Year Warranty Optional Accessories Cobra Electronics CorporationOptional Accessories Accessory Order Info Ordering From U.S.A For Credit Card OrdersMake Check or Money Order Payable To To Order OnlineIf You Think You Need Service CB StoryFCC Regulations FCC WarningsControls and Indicators Our Thanks to You Cobra Customer ServiceCustomer Support Back Side