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Cobra HH 33 Operating Instructions Manual

Made by: Cobra
Type: Operating Instructions
Category: Two-Way Radio
Pages: 11
Size: 0.33 MB

 

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Citizens Band

2-way 

Handheld 

CB Radio

“Ingenious Products for 

Easier Communication.”

Operating instructions 
for your

COBRA ELECTRONICS CORPORATION

6500 W. Cortland Street

Chicago, Illinois 60707

Printed in Thailand              Cobra Electronics Corp.© 1997            Part no. 480-200-P-001

3

33

3

HH

 


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CITIZENS BAND
2-WAY HANDHELD RADIO

CONTENTS:

Introduction

........................................3

Features ............................................3
Technical Support and service ..........3
Controls and Indicators ................4/5

The CB Story ....................................6
FCC Warnings ..................................6

Included with your HH33 ....................7
Getting Started ....................................8

Antenna ............................................8
Battery Chamber ..............................8

Operation ............................................9

Turning your Hand-Held CB on ........9
Setting the Squelch............................9

Selecting a channel ........................10
LED Display ....................................10
Transmit / Receive ..........................10
In Vehicle Use ................................11

How your CB can serve you ..............12

Never Used A CB Before? ..............12
A few rules you should know..........13
Channel 9 Emergency Messages ....14
CB 10 Codes ..................................15

Frequency Ranges ..............................16
Specifications ....................................17
If You Think You Need Service ............18
Warranty Information ........................19
Optional Accessories ..........................20

3

INTRODUCTION

The HH33 is designed to give you consistent, outstanding performance in
virtually all conditions and situations. To insure you get the most from the
Cobra HH33, please read this operating guide carefully before using the unit.

FEATURES

-Full 4 Watts Power Output

-40 CB Radio Channels

-High Efficiency Flexible Antenna

-Battery Saver Circuitry

-Low Battery Indicator

-BNC Antenna Connector

-Transmission/Receive Indicators

TECHNICAL SUPPORT

How to use your

MODEL

3

33

3

HH 

For technical assistance, please call our Automated Help Desk

which can assist you by answering the most frequently asked

questions about Cobra products.

(773) 889-3087

24 hours a day, 7 days a week.

A Consumer Service Representative can be 

reached through this same number

8:00 am - 8:00 pm, Monday through Friday, CST.

Technical assistance is also available on-line in the Frequently 

Asked Question (FAQ) section at www.cobraelec.com or by e-mail to

productinfo@cobraelec.com

 


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5

4

1.  BNC Antenna Connector
2.  Squelch Control
3.  On/Off Volume Control
4.  Belt Clip
5.  Channel Up Key
6.  Channel Down Key
7.  PTT (Push To Talk) Key
8.  Battery Chamber
9.

DC Power Jack

10. LED Display Panel
11. Microphone
12. Speaker

PTT

2

3

4

5

1

6

7

8

11

10

12

9

CONTROLS
AND INDICATORS

 


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7

6

INCLUDED WITH YOUR HH 33

1. High Efficiency

Antenna

2. Belt Clip

THE CB STORY

The Citizens Band lies between the shortwave broadcast and 10-meter
Amateur radio bands, and was established by law in 1949. The Class D
two-way communications service was opened in 1959. (CB also includes
a Class A citizens band and Class C remote control frequencies.)

FCC regulations permit only “transmissions” (one party to another) rather
than “broadcasts” (to a wide audience). Thus, advertising is not allowed
on CB Channels because that is “broadcasting.”

FCC WARNINGS

Replacement or substitution of transistors, regular diodes or other parts of
a unique nature, with parts other than those recommended by Cobra, may
cause violation of the technical regulations of Part 95 of the FCC Rules, or
violation of Type Acceptance requirements of Part 2 of the Rules.

Citizens Band (CB) Radio operators are no longer required to obtain an FCC
license to operate their CB equipment or provide station identification.

Nevertheless, an operator of a CB radio station is still required to comply
with the communications act and with the rules of CB Radio Operation.

 


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BATTERIES

Insert (10) new “AA” Alkaline batteries 
(not provided) into the battery chamber. 
To install batteries, (1) remove the battery
chamber cover from the unit. (2) Install the
batteries according to the polarity markings
provided on the chamber. Note: Incorrect
battery installation can damage the
batteries and chamber. (3) Return battery
chamber cover.

Alkaline batteries:
Top grade Alkaline batteries 
should be used.

9

8

OPERATION

TURNING ON/SQUELCH

TURNING YOUR
HANDHELD CB ON

Rotate the power ON-OFF
Volume Control clockwise.

Open the squelch by fully
turning counterclockwise 
and adjust the volume to 
a comfortable level.

SETTING THE SQUELCH

Think of your squelch control 
as a gate for incoming signals. 
If you turn the squelch control
fully clockwise, you effectively
close the “gate” and no signals
will pass through. If you turn 
the squelch control fully
counterclockwise, you 
open the gate and all 
signals come through.

To achieve the Desired Squelch
Setting (DSS)
, turn the squelch
control counterclockwise until
you just hear noise. Then turn the
squelch control back clockwise
just until the noise stops. This
DSS setting only lets strong
signals through. 

ANTENNA

Attach antenna securely
by turning clockwise.

GETTING STARTED

+

+

+

+

+

+

+

+

+

+

 


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LED DISPLAY

TRANSMIT / RECEIVE

To transmit, push the PTT button.
The Red TX LED will be displayed 
during transmissions.

Hold the HH33 mic about 2 inches from 
your mouth.

Speak into the microphone in a normal
voice.

Release the PTT button to receive incoming
transmissions.    

**Note: While the PTT button is depressed, 

you cannot receive transmissions.
The Green RX LED is displayed
when the radio is in receive mode.

11

10

PTT

OPERATION

SELECT CHANNEL/DISPLAY/TRANSMIT

SELECTING A CHANNEL

Turn on your HH33.

To select a higher channel, push the UP 
arrow key. 

To select a lower channel, push the DOWN
arrow key.

**Note: To quick advance channels, press and

hold the selection key.

• Red LED for TRANSMIT (TX)

• Green LED for RECEIVE (RX)

• Red BATT LOW Indicator

• Red SoundTracker™ “ON” Indicator

PTT

OPERATION

IN VEHICLE USE

IN VEHICLE USE

Your HH 33 can be connected 
to a 12 volt power source with 
the cigarette power cord adaptor
provided. Connect adaptor 
as shown.

**Note: Due to the characteristics of

CB transmissions, it may be
difficult to transmit and
receive from inside your car.
Roof mounted antennas can
dramatically improve
transmissions and will
increase your range. You will
need a quality roof mount
antenna and a BNC/SO239
adapter. See accessories
section for details. 

 


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13

12

OPERATION

A FEW RULES YOU SHOULD KNOW

OPERATION

HOW YOUR CB CAN SERVE YOU

A FEW RULES YOU SHOULD KNOW 

1. You are not allowed to carry on a conversation with another station for

more than five minutes at a time without taking a one-minute break to
give others a chance to use the channel.

2. You are not allowed to blast others off the air by overpowering them

with illegally amplified transmitter power or illegal high antennas.

3. You can’t use the CB to promote illegal activities.
4. You are not allowed to use profanity.
5. You may not play music in your CB.
6. You may not use your CB to sell merchandise or professional service.

HOW YOUR CB CAN 
SERVE YOU 

• Warn of traffic tie ups ahead.
• Provide weather and 

road information.

• Provide help fast in event of

emergency or breakdown.

• Suggest good spots to eat 

and sleep.

• Make long trips more interesting,

and help keep 

you awake.

• Provide direct contact with your

office or home.

• Make friends as you travel.
• Provide “local information” to find

your destination.

• Help law enforcement 

officers by reporting drunk 

and reckless drivers.

Never Used A CB Before?

WHAT TO EXPECT FROM YOUR NEW COBRA CITIZENS 
BAND TRANSCEIVER
Citizens Band Two-Way Radios operate on an AM frequency, just

like your car radio.

FIRST:

When you first use your new CB you should tune to channel 19.
At first, you may hear what you think is a lot of noise and garble.

What you are hearing are parts of many faraway conversations
that are drifting into your transceiver. To eliminate the "noise"
you need to set up the SQUELCH control. It will silence the
"noise" by tuning your receiver to "hear" only close-by com-
munications. Turn the SQUELCH control to the right until you
silence the noise. You will need to adjust this control as the
"noise" level will go up or down depending on your location.

SECOND:

Try a broadcast. Say, "Break One-Nine for a Radio Check."
Listen for a response from another CBer near you. If you do
not get a response repeat the message. When you get a
response ask, "How are you receiving my transmission?"
NOW YOU ARE ON THE AIR! Try asking about the road
conditions, the weather conditions, a good place to eat.
Don't be afraid to talk.

 


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15

14

CB 10-CODES

Citizens Band radio operators have largely adopted the “10-code” for
standard questions and answers. Its use permits faster communications
and better understanding in noisy areas. The following table lists some
of the more common codes and their meanings:

Code

Meaning

Code

Meaning

10-1

Receiving poorly

10-2

Receiving well

10-3

Stop transmitting

10-4

OK, message received

10-5

Relay message

10-6

Busy, stand by

10-7

Out of service, leaving air

10-8

In service, subject to call

10-9

Repeat message

10-10

Transmission completed, 
standing by

10-11

Talking too rapidly

10-12

Visitors present

10-13

Advise Weather/Road 
conditions

10-16

Make pick up at

10-17

Urgent business

10-18

Anything for us?

10-19

Nothing for you, return to base

10-20

My location is

10-21

Call by telephone

10-22

Report in person to

10-23

Stand by

10-24

Completed last assignment

10-25

Can you contact

10-26

Disregard last information

10-27

I am moving to channel

10-28

Identify your station

10-29

Time is up for contact

10-30

Does not conform to FCC rules

10-32

I will give you a radio check

10-33

EMERGENCY TRAFFIC

10-34

Trouble at this station

10-35

Confidential information

10-36

Correct time is

10-37

Wrecker needed at

10-38

Ambulance needed at

10-39

Your message delivered

10-41

Please turn to channel

10-42

Traffic accident at

10-43

Traffic Tie up at

10-44

I have a message for you

10-45

All units within range 
please report

10-50

Break channel

10-60

What is next 
message number?

10-62

Unable to copy, 
use phone

10-63

Net directed to

10-64

Net clear

10-65

Awaiting your next 
message/assignment

10-67

All units comply

10-70

Fire at

10-71

Proceed with transmission
in sequence

10-77

Negative contact

10-81

Reserve hotel room for

10-82

Reserve room for

10-84

My telephone number is

10-85

My address is

10-91

Talk closer to mike

10-93

Check my frequency on
this channel

10-94

Please give me a 
long count

10-99

Mission completed, all 
units secure

10-200 Police needed at

Operating Procedure for Emergency Communications

1. For  EMERGENCY communications,  set radio to Ch. 9. For non-

emergency communications, select desired Channel by rotating the
CHANNEL UP/DOWN tuning knob until reaching the desired Channel.
Be sure the antenna is properly connected to the radio before transmit-
ting. Prolonged transmitting without an antenna, or use of a poorly
matched antenna, could cause damage to the transmitter.

2. When asking for aid on Channel 9 it is suggested that you request a

REACT base to respond by saying "Break Channel 9 for a REACT base"
and provide the CB DISTRESS DATA (called "CLIP):
C
ALL SIGN-Identify yourself and vehicle.
LOCATION-Be exact.
INJURIES-Number. Type. Trapped?
PROBLEM- Give details and help required. Air CLIP repeatedly so any
monitor can aid you.

If you don't receive a response on Ch. 9; try Ch.14 or 19.

USE CHANNEL 9 FOR EMERGENCY ONLY

FCC gives the following examples of permitted and prohibited types of
communications for use on Channel 9. These are guidelines and are not
intended to be all-inclusive.

Permitted

Example Message

Yes

"A tornado sighted six miles north of town."

No

"This is observation post number 10. No tornado sighted."

Yes

"I am out of gas on Interstate 95 at mile marker 121."

No

"I am out of gas in my driveway."

Yes

"There is a four-car collision at Exit 10 on the Beltway,
send police and ambulance."

No

"Traffic is moving smoothly on the Beltway."

Yes

"Base to Unit 1, the Weather Bureau has just issued a
thunderstorm warning. Bring the sailboat into port."

No

"Attention all motorists. The Weather Bureau advises that
the snow tomorrow will accumulate 4 to 6 inches."

Yes

"There is a fire in the building on the corner of 6th and
Main Streets."

No

"This is Halloween patrol unit number 3. Everything is
quiet here."

 


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16

CB 

Channel Freq.

CB 

Channel Freq.

Channel

in MHz

Channel

in MHz

1

26.965

2

26.975

3

26.985

4

27.005

5

27.015

6

27.025

7

27.035

8

27.055

9

27.065

10

27.075

11

27.085

12

27.105

13

27.115

14

27.125

15

27.135

16

27.155

17

27.165

18

27.175

19

27.185

20

27.205

21

27.215

22

27.225

23

27.255

24

27.235

25

27.245

26

27.265

27

27.275

28

27.285

29

27.295

30

27.305

31

27.315

32

27.325

33

27.335

34

27.345

35

27.355

36

27.365

37

27.375

38

27.385

39

27.395

40

27.405

HH-33 SPECIFICATIONS

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 + 65° C

MICROPHONE

ELECTRET, PUSH-TO-TALK

INPUT VOLTAGE 

12V VDC, INTERNAL BATTERIES
13.8 VDC, EXTERNAL

ANTENNA CONNECTOR

TYPE BNC

TRANSMITTER
POWER OUTPUT

3.5 W AT 12 VDC  - HIGH, 1.0 W IN LOW
4.0 W AT 13.8 VDC - HIGH, 1.0 IN LOW

MODULATION

AM

FREQUENCY RESPONSE

300 - 3000 HZ AT -6 DB

OUTPUT IMPEDANCE

50 OHMS, UNBALANCED

RECEIVER
CB
SENSITIVITY

LESS THAN 1 uV FOR 10 DB S/N

IF FREQUENCY

DUAL CONVERSION
1 ST - 10.690 MHZ, 2ND - 455 KHZ

AUDIO OUTPUT

500 mW MAXIMUM AT 10 % DISTORTION

FREQUENCY RESPONSE

300 - 3000 HZ AT -6 DB

2ND IF IMAGE REJECTION

GREATER THAN 60 DB

ADJACENT CH. REJECTION

50 DB MIN.

AUTOMATIC NOISE LIMITER

BUILT- IN.

FREQUENCY CONTROL 

PLL (PHASE LOCK LOOP)

FREQUENCY RANGE

The COBRA HH33 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 as shown below.

 


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19

18

LIMITED TWO YEAR WARRANTY

COBRA ELECTRONICS CORPORATION warrants that its COBRA CB Radios, and
the component parts thereof, will be free of defects in workmanship and materials
for period of two (2) years from the date of first consumer purchase. This warranty
may be enforced by the first consumer purchaser, provided that the product is
utilized within the U.S.A.
COBRA will, without charge, repair or replace, at its option, defective CB radios,
products or component parts upon delivery to the COBRA factory Service
Department, accompanied by proof of the date of first consumer purchase, such as
a duplicated copy of a sales receipt.
You must pay any initial shipping charges required to ship the product for warranty
service, but the return charges will be at Cobra's expense, if the product is repaired
or replaced under warranty. For further details concerning procedures for obtaining
service, see the “If You Think You Need Service” section of the Owner’s Manual.
Exclusions:  This limited warranty does not apply; 1) to any product damaged by
accident; 2) in the event of misuse or abuse of the product or as a result of unautho-
rized alterations or repairs; 3) if the serial number has been altered, defaced or re-
moved; 4) if the owner of the product resides outside the U.S.A. 
All implied warranties, including warranties of merchantability and fitness for a
particular purpose are limited in duration to the length of this warranty.
COBRA shall not be liable for any incidental, consequential or other damag-
es; including, without limitation, damages resulting from loss of use or cost of
installation.
Some states do not allow limitations on how long an implied warranty lasts and/or
do not allow the exclusion or limitation of incidental or consequential damages, so
the above limitations may not apply to you.

COBRA ELECTRONICS CORPORATION

6500 W. Cortland Street

Chicago, Illinois 60707

If You Think You Need Service, 

Call 773-889-3087

“If your product should require factory service please call Cobra first before

sending your unit in. This will ensure the fastest turnaround  time on your repair.”
You may be asked to send your unit to the Cobra factory. It will be necessary to
furnish the following, in order to have the product serviced and returned.

1. For  Warranty Repair, include some form of proof-of-purchase, such as a

mechanical reproduction or carbon or sales receipt. If you send the original
receipt it cannot be returned.

2. Send the entire product. Must include CB unit and microphone.
3. Enclose a description of what is happening with the unit. Include a typed or

clearly printed name and address of where the unit is to be returned.

4. Pack unit securely to prevent damage in transit. If possible, use the original

packing material.

5. Ship prepaid and insured by way of a traceable carrier (to avoid loss in transit)

such as UNited Parcel Service (UPS), Roadway Parcel Service (RPS), or First
Class Insured Mail 
to Cobra Factory Service, Cobra Electronics Corporation,
6500 W. Cortland St., Chicago, IL 60707. Cobra is not responsible for units not
received if package has not been properly insured.

6. If the unit is in warranty, upon receipt of your unit it will either be repaired or

exchanged depending on the model. Please allow approximately 3 to 4 weeks
before contacting us for status. If the unit is out of warranty a letter will
automatically be sent informing you of the repair charge or replacement charge.
If you have any questions, please call 773-889-3087 for assistance.

For technical assistance, please call our Automated Help Desk

which can assist you by answering the most frequently asked

questions about Cobra products.

(773) 889-3087

24 hours a day, 7 days a week.

A Consumer Service Representative can be 

reached through this same number

8:00 am - 8:00 pm, Monday through Friday, CST.

Technical assistance is also available on-line in the Frequently 

Asked Question (FAQ) section at www.cobraelec.com or by e-mail to

productinfo@cobraelec.com

 


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20

21

Magnetic Mount Weather Antenna (not
shown). Allows greater transmission range
while in a moving vehicle. (Requires a CA-
43 connector)
ATW-400

$39.75

NOTES

OPTIONAL ACCESSORIES

You can find these fine accessories at your local Cobra CB dealer.

If you wish, you can order directly from Cobra

Order by phone:
Call 1-773-889-3087 (Press 1 from the main menu) 8a.m.-8p.m. M-F CST. 
Order by mail or fax: Please fill out order form below, and mail/fax directly to Cobra.

Fax to: 

1-773-622-2269

Please print clearly:

Name

Address (Not P.O. Box)

City                      

State

Zip

Credit Card No.

Exp. Date

Customer Signature

Circle One:

Visa

MasterCard

Discover

Allow 4 to 6 weeks for delivery. Offer valid in Continental U.S. only.

Replacement DC

Power Cord for

in vehicle use

420-017-N-001
$7.00

BNC/SO239 antenna
adapter. Allows  connection
of your handheld CB to
standard antennas.
CA-43

$5.00

Long Range antenna.
Doubles the range of
your handheld CB.
CA-41

$15.95

★★

Illinois residents add 7%

★★

Cook Co. residents add .75% (7.75% total)

★★

Chicago residents add 1% (8.75% total)

★★

Indiana residents add 5%

★★

Michigan residents add 4 %

★★

Minnesota residents add 6%

★★

Ohio residents add 6%

★★

Wisconsin residents add 5%

Part No.

Cost Ea.  X Qty. = Amount

420-017-N-001

$7.00

CA-43

$5.00

CA-41

$15.95

ATW-400

$39.75

Amount

(Tax if applicable    )  

Shipping//handling         $3.75

Total 

Mail to:

Cobra Accessories Dept.

6500 W. Cortland St.,

Chicago, IL 60707

(Prices subject to change without notice.)