Cobra 37 ST, HH 37 ST Operating Instructions Manual

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 co m m u n i c ations serv i ce was opened in 1959.
FCC Regulations
FCC regulations permit only “transmissions” (one party to another) rather than “broadcasts” (to a wide audience). Advertising is not allowed on CB Channels because it is considered “broadcasting.”
FCCWarnings
Replacement or substitution of transistors,regular diodes or other parts of a unique nature,with parts other than those recommended by Cobra, m ay cause a violation of the te c h n i cal re g u l at i o n s of Part 95 of the FCC Rules, or violation of Ty pe Acceptance requirements of Part 2 of the Rules.
Citizens Band (CB) Radio operators are not 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.
What’s Included with Your HH 37 ST
1. High Efficiency Antenna
2. Removable Belt Clip
3. Wrist Strap
4. 12 Volt Cigarette Lighter Plug
HH
37 ST
Cobra Electronics Corporation 6500 West Cortland Street Chicago, IL60707
Cobra Electronics Corp.© 1998 Printed in Thailand
Part No. 480-270-P-001
Citizens Band 2-Way Handheld CB Radio
“Ingenious Prod u cts for Easier Co m m u n i cat i o n .”
O pe rating Instru ctions for your Co b ra HH 37 ST
The CB Story
A1
For te c h n i cal assistance,please call our A u to m a ted Help Desk which can assist you by answe ring the most fre q u e n tly asked questions about C o b ra prod u ct s.
(773) 889-3087
24 hours a da y,7 da ys a week.
A Consumer Service Representative can be reached through this same number 8:00 am - 8:00 pm, Monday
through Fr iday,CST.
Technical assistance is also a vailable on-line in the F requently Asked Questions (F AQ) section at
www.cobraelec.com or by e-mail to pr oductinfo@cobraelec.com
If you think you need service call 1.773.889.3087
“If your product should require factory service please call Cobra first before sending your unit in. This will ensure the fastest turn-around time on your repair.”
You may be asked to send your unit to the Cobra factory.It will be necessary to furnish the follo w­ing in order to have the product serviced and returned.
1. For Warranty Repair include some form of proof-of-purchase,such as a mechanical repr oduction or carbon or a sales receipt. If you send the original receipt it cannot be returned.
2. Send the entire pr oduct.
3. Enclose a description of what is happening with the unit. Include a typed or clearly print 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 ma terial.
5. Ship prepaid and insured by w ay of a traceable carrier such as United Parcel Service (UPS) or First Class Mail: to avoid loss in transit to: Cobra Factory Service, Cobra Electronics Corporation,6500 W.Cortland St., Chicago,IL 60707.
6. I f 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 war ranty a letter will automatically be sent informing you of the repair charge or replacement charge.If you ha ve any questions,please call 1.773.889.3087 for
assistance.
IfYou Think You Need Service
3
2
4
1
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Thank you for purchasing the Cobra HH 37 ST handheld CB. Properly used,this Cobra product will give you many years of reliable service.
SoundTracker
TM
“Cuts noise coming in...strengthens signals going out.”
This Patent pending technology dramatically improves transmission and reception of CB signals.
The revolutionary SoundTrackerTMSystem recon­figures the transmission signal which allows it to be transferred more efficiently through cluttered airwaves.
At the same time,it significantly reduces the amount of static on all incoming CB signals.
The end result is a cleaner,clearer sounding reception of signals and a more powerful transmission which dramatically improves CB communications.
Customer Support
Should you encounter any problems with the product or not understand its many features, please refer to this owner’s manual. If,after referring to the manual, you still need help, call Cobra Customer Service at 773.889.3087.
Controls and Indicators
Cobra Customer Service
Live operators are available M-F 8:00 am - 8:00 pm CST at:
773.889.3087 Automated Technical Assistance
available 24 hours a day,seven days a week.E-mail questions to: productinfo@cobraelec.com
Cobra on the World Wide Web: Frequently Asked Questions (FAQ) can be found on-line at: www.cobraelec.com
Our Thanks to You
A3
A2
1. BNCAntennaConnector
2. Squelch Control
3. On/Off Volume Control
4. Removable Belt Clip
5. External Speaker Jack
6. External Microphone Jack
7. 12 Volt DC Power Jack
8. NiCad Battery Charge Jack
9. Channel Up/Down Key
1 0 . PTT (Push To Talk ) Key
11 . Battery Chamber 12 . LED Channel Display 13 . SoundTracker™ Key 14 . Power Save Key 1 5 . Microphone 16 . SoundTracker™ LED 17 . TX (transmit)/
Batt (battery low) LED
1 8 . Battery Charge/
Power Save LED
4
1 0
9
6
8
1 1
1 3
5 7
1
2 3
1 5
1 4
1 2
1 6
1 7
1 8
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How to Use Your
Cobra
HH
37 ST
Contents
Features...........................................................................1
The CB Story..................................................................A1
FCC Regulations FCCWarnings Included Accessories
Controls & Indicators.................................................A2
Our Thanks toYou.......................................................A3
SoundTracker
Customer Support
Operating Your HH 37 ST
Antenna........................................................................2
Belt Clip........................................................................3
Battery Installation...................................................3
Turning on Your CB..................................................4
Setting Squelch.........................................................4
Selecting a Channel.................................................6
LED Display.................................................................7
Transmit/Receive......................................................8
SoundTracker™System...........................................10
In Vehicle Use.............................................................14
Power Saver (HI/LOW)............................................14
External Speaker/Microphone.............................15
HowYour CB Can ServeYou....................................16
A Few Rules You Should Know............................16
Channel 9 Emergency Messages........................16
CB 10 Codes...............................................................18
Frequency Ranges ......................................................20
HH 37 ST Specifications............................................21
Warranty Information................................................22
Optional Accessories.................................................23
Order Form.....................................................................24
IfYou Think You Need Service...............Back Cover
Features of This Product
• SoundTracker™System
• 40 CB Channels
• Full 4 Watt RF Power
• Power Saver (HI/LOW)
• LED Channel Di s p l ay
• High Efficiency Flexible Antenna
• External Speaker/ Microphone Jack
• NiCad Battery Charge Jack
• TX Transmit Indicator
• Omni Directional Microphone
1
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To remove belt clip, lift tab out and slide belt clip down.
OperationOperation
Attach Antenna
32
Attach Antenna
Insert.
1
Turn clockwise.
2
Remove battery chamber cover. Install batteries by polarity markings. Replacecover.
Battery Installation
Attach Belt Clip
Install Batteries
1 2 3
1 2
Attach Belt Clip
Note
Ignoring polarity markings can cause damage to both the unit and the batteries.
The HH 37 ST requires 9 “AA” alkaline or NiCad batteries (not included with the unit).
When batteries are low or need charging the TX/Batt LED will remain on. Replace alkaline batteries or recharge NiCad batteries.
Note
Clip slides up to attach and slides down to remove.
Slide belt clip up on rails of base until tab locks.
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OperationOperation
Fully counterclockwiseopens the “gate”and all signals enter.
Turning On
Rotate ON - OFF Volume Control clockwise.
5
Turning On
4
Setting Squelch
Squelch is the “control gate”for incoming signals.
To achieve the Desired Squelch Setting (DSS), turn the Squelch control counterclockwise until you hear noise. Now turn the control clockwise just until the noise stops. This is the DSS setting and only strong signals will enter.
3
4
Turn volume up louder than normal.
1
Fully clockwise closes the “gate”, allowing no incoming signals.
2
Gate closed
Gate open
Gate set to Desired Squelch Setting (DSS)
Setting Squelch
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OperationOperation
LED Display
All needed information is displayed.
Select Channel
Turn power ON.
LED Display
7
Note
For quick advance,push and hold arrow key(s).
Note
When switching from one chan­nel to another,squelch will need to be reset.See Setting Squelch on page 4.
Note TX/Batt Indicator
This LED will illuminate red when the PTT button is pushed and held (this means your unit is transmitting) or batteries are low and need recharging or replacement.
Charge/Pwr Save Button
The Charge/Pwr Save LED will illuminate red when Power Save button is pushed or when charg­ing NiCad batteries with charger plugged in.
6
Select Channel
For higher channel, push UP arrow key.
For lower Channel, push DOWN arrow key.
1
2
3
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OperationOperation
Transmit/Receive
Release PTT button to receive incoming transmissions.
9
Transmit/Receive
8
Hold mic about 2 inches from mouth. Speak in a normal voice.
To transmit,push and hold PTT button.
1
3
4
TX/Batt (transmit) will illuminate red.
2
Note
While PTT button is pressed you cannot receive transmissions.
Note
Your HH 37 ST is always ready to receive incoming signals when the PTT button is released.
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The SoundTrackerTMSystem
While previous systems only “blanket out”or limit noise in higher sound frequencies, the revolution­ary new SoundTrackerTMSystem actually reduces noise while leaving the signal intact in the recep­tion mode. In the transmission mode,it actually strengthens the signal,providing you with a significant reduction in noise on reception and transmission.
Sound clarity is measured by the ratio of the signal level to the noise level. The higher the signal-to-noise ratio, the better the sound.
How SoundTrackerTMWorks
On Reception - “Cuts noise coming in”
With a normal CB, distant signals fall below the squelch level and are unintelligible.With a SoundTrackerTMCB,the noise level is cut up to 90%,which increases the signal-to-noise ratio and dramatically improves signal clarity.This also allows you to significantly reduce the squelch level,which greatly expands your listening range.
OnTransmission - “Strengthens signals going out”
A SoundTrackerTMCB strengthens the transmit signal by more effectively using the available RF power output of the CB.The result is improved transmission signal clarity and an expanded transmission range.
OperationOperation
1110
Activating SoundTracker
Activating SoundTracker
TM
Note
SoundTracker™ gives you clearer,cleaner reception to improve CB communications while on the air.
Pushand release the ST key.
1
The SoundTracker™ LED will illuminate red.
2
Note
This engages the SoundTracker™
system and reduces the noise level.
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Turnthe volume up louder than your normal listening level.
Select any unused channel on your CB.
Operation
13
Operation
Testing SoundTracker
12
Testing SoundTracker
TM
1
3
Fully counterclockwiseopens the “gate”and all signals enter. Turn the knob until it stops.
2
Note
At times you may experience different levels of noise reduction.Different terrains and environments will effect the SoundTracker™ System’s performance.
Pushand release the ST button.
The SOUNDTracker™ LED will illuminate red.
*
Notice the significant reduction in noise.
To disengage SoundTracker™ push and release
ST button again.
4
5
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Power Save LED will illuminate.
In Vehicle Use
15
In Vehicle Use External Speaker/
Microphone Jack
14
Note
Due to the characteristics of CB transmissions,it is neccesary to use an external car roof antenna and a BNC adapter to receive optimal performance while in your vehicle.See Accessories section on page 23.
Note
DC/Power Cord is provided.
Note
External speaker/microphone is not included with this unit. See accessories on page 23 for avail­able options.
Operation Operation
Power Saver-HI/LOW
Reduces the power to 1 watt. This does not decrease the unit’s ability to receive but does reduce the transmitting range.
Push and release PWR Save button.
1
2
External Speaker/Microphone Jack
Your HH 37 ST can be fitted with an external speaker/microphone,(not included) freeing your hands for other tasks (like driving!).
Locate SPK/MIC jack on side of unit and
insert plug.
The HH 37 ST can be connected to your cigarette lighter with the provided car cord.
This power connec­tion does NOT charge the batteries.
1
Hold mic about 2 inches from mouth. Speak in a normal voice.
2
Power Saver­HI/LOW
Note
Battery life is increased approxi­mately 50% while in Battery Save LOW Mode.This reduces power output to 1 watt.
37st manual layout.5 10/1/98 9:56 AM Page 20
How Your CB Can Serve YouHow Your CB Can Serve You
1716
The FCC gives these examples of permitted and prohibited messages for channel 9. These are only guidelines and not all-inclusive:
Permitted Example Message
Yes “Tornado sighted six miles north
of town.”
No “Post number 10.
No tornado sighted.”
Yes “Out of gas on I-95 at mile
marker 211.”
No “Out of gas in my driveway.” Yes “Four car accident on I-94 at
Exit 11. Send police and
ambulance.”
No “Traffic moving smoothly on I-94.” Yes “Weather Bureau has issued
thunderstorm warning.
Bring sailboat into port.”
No “Attention motorists.
Weather Bureau advises snow tomorrow will accumulate 4 to 6 inches.”
Yes “Fire in building at 539 Main,
Evanston.”
No “Halloween patrol number 3.
All quiet.”
1. Set to channel 9 for emergencies
Be sure antenna is properly connected.
2. CB Distress Data
When transmitting an emergency,you should request a “REACT BASE”and provide the CB distress data (called CLIP):
C all Sign Identify yourself. L ocation Be exact. I njuries Number.Type.Trapped? P roblem Give details and help needed.
Transmit C L I P re pe atedly so any monitor can assist.
Channel 9 Emergency Messages
Note
If no response on channel 9, try channels 19 or 14.
• Warn of traffic problems
• Provide weather and road data
• Provide help in event of an emergency
• Provide direct contact with home or office
• Assist police by reporting erratic drivers
• Get “local information”to find destination
• Communicate with family and friends
• Suggest spots to eat and sleep
• Keep you alert while traveling
A Few Rules You Should Know
A. Co nve r s ations cannot last more than 5 minute s
with another station. A one minute break is required to let others use the channel.
B. You cannot blast others off the air by use of
illegally amplified transmitters or illegally
high antennas. C. You cannot use CB to promote illegal activities . D. Profanity is not allowed. E. You may not transmit music with a CB. F. Selling of merchandise and/or services is
prohibited.
A Few Rules You Should Know
37st manual layout.5 10/1/98 9:56 AM Page 22
How Your CB Can Serve YouHow Your CB Can Serve You
1918
Code Meaning
10-29 Time is up for contact 10-30 Does not conform to FCC rules 10-33 E mergency 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 10-39 M essage delivered 10-41 Turn to channel 10-42 Traffic accident at 10-43 Traffic tie up at 10-44 Have a message for 10-45 All units within range please repor t 10-50 Break channel 10-60 What is next message number? 10-62 U nable to copy.Use phone 10-63 Net direc ted to 10-64 Net clear 10-65 Awaiting your next message/assignment 10-67 A ll units comply 10-70 Fire at 10-71 Proceed, transmission in sequence 10-77 Negative contact 10-81 Reserve hotel room for 10-82 Reserve room for 10-85 My address is 10-91 Talk closer to mic 10-93 Check my frequency on this channel 10-94 Give me a long count 10-99 Mission completed,all units secure 10-200 Police needed at
CB 10-Codes
Citizen Bands have adopted the “10-CODES”for standard questions and answers. These codes p rovide quick and easy co m m u n i cat i o n ,e s pe c i a l l y in noisy areas. Following are some of the more common codes and meanings:
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 servic e,leaving 10-8 In servic e,subject to call 10-9 Repeat message 10-10 Transmission completed standing by 10-11 Talking too rapidly 10-12 Visitors presen t 10-13 Advise weather/roads 10-16 Make pick up at 10-17 Urgent business 10-18 Anything for us? 10-19 Return to base 10-20 My location is 10-21 Call by phone 10-22 Report in person to 10-23 Stand b y 10-24 Completed last assignment 10-25 Can you contact 10-26 Disregard last info 10-27 Moving to channel 10-28 Identify your station
CB 10-Codes
37st manual layout.5 10/1/98 9:56 AM Page 24
HH
37 ST SpecificationsFrequency Ranges
2120
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. . . . . . . . . . . . . . . . ELECTRET,PUSH-TO-TALK
INPUT VOLTAGE . . . . . . . . . . . . . 13.0V DC,INTERNAL BATTERIES
13.8 VDC,EXTERNAL
ANTENNA CONNECTOR. . . . . . . TYPE BNC
TRANSMITTER
POWER OUTPUT . . . . . . . . . . . . . 3.5 W AT 12 VDC - HIGH,0.8 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 % DISTO RT I O N
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)
MAX.SIGNAL TO NOISE RATIO. 58 DB WITH ST ON
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 DB WITH ST OFF
The COBRA HH37 ST 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.
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
Channel Channel CB Freq. CB Freq. Channel In MHz Channel In MHz
37st manual layout.5 10/1/98 9:56 AM Page 26
Optional AccessoriesLimited Two Year Warranty
2322
COBRA ELECTRONICS CORPORATIONwarrants 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.
Exclusions:This limited war ranty 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 unauthorized alter­ations or repairs;3) if the serial number has been altered, defaced or removed;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 damages;including,without limitation, damages resulting from loss of use or cost of installat i o n .
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 West Cortland Street Chicago,Illinois 60707
Ear Bud Mic with PTT
I n te g ra ted spe a ker/mic adapter that fits in your ear.Includes shirt clip. M A- E B M $ 2 9 . 9 5
Vox Mic
VOX (Vo i ce Ope ra ted Tra n s m i t te r ) a d a p ter allows you hands-free ope ra t i o n . M A- VOX $ 4 9 . 9 5
(1) High Pe rfo r m a n c eNi-Cad Rechargeable Battery Cell
2 1 2 - 0 0 1 - N - 0 0 1 $3.95 ea.
Replacement Belt Clip
H A- B C $ 4 . 9 5
BNC/SO239 Antenna Adapter
Al l ows co n n e ction of the 45 WX ST to standard ante n n a s. CA- 4 3 $ 5 . 9 5
You Can Find These Fine Accessories AtYour 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) 8 a.m.-8 p.m. M-F CST.
Order by mail or fax
Please fill out order form on next page,and mail/fax directly to Cobra.
120 Volt A/C Wall Ch a rger with Pl u g
Ch a rges 9 N i - Cad batte ry cells in 24 hours right in the unit. CA- 2 5 $ 1 0 . 0 0
Lapel Microphone
Remote microphone/speaker connection. CA- 4 0 $ 2 5 . 9 5
Long Range An te n n a
Doubles the range of your HH 37 ST. CA- 4 1 $ 2 5 . 9 5
Magnetic Mount Weather Antenna
Allows greater transmission range while in a moving vehicle. ATW- 4 0 0 $ 2 9 . 9 5
37st manual layout.5 10/1/98 9:56 AM Page 28
Accessory Order Form
24
Tax Table
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%
For credit card orders fill out order form and fax to:1.773.622.2269 or call 1.773.889.3087 (Press 1 from the main menu) 8:00 am - 8:00 pm,M-F,CST.
Ma ke check or money order (no stamps) payable to: Cobra Accessories Dept. 6500 West Co rtland St.Ch i ca g o,IL 60707
Prices subject to change without notice.
Please print clearly Name Address (No P.O.Box) City State Zip Telephone ( ) 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.
Subtotal (Tax if applicable) Shipping/handling
$4.00
Total
Item # Description Cost Ea. Qty. Amount
M A - E B M Ear Bud Mi c $ 2 9 . 9 5 M A - VOX Vox Mi c $ 4 9 . 9 5
2 1 2 - 0 0 1 - N - 0 0 1 (1) Ni-Cad Re c h a r geable Bat te ry Cell $3.95
HA-BC Replacement Belt Clip $4.95 CA-25 120 V A/C Wall Ch a rger with Pl u g $ 1 0 . 0 0 CA-40 Lapel Microphone $25.95 CA-41 Long Range A ntenna $25.95 ATW-400 Magnetic MountWeather Antenna $29.95 CA-43 BNC/S0239 Antenna Adapter $5.95
37st manual layout.5 10/1/98 9:56 AM Page 30
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