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The Citizens Band lies between the shor twave
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 cations 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.”

FCC Warnings 

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 oper ate their
CB equipment or provide station identification.

Nevertheless, an operator of a CB radio station 
is still required to comply with the communic a-
tions 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 c al assistance, please call our A u to m a ted Help Desk which can assist 

you by answ e ring the most fr e 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 days a week.

A Consumer Service Representative can be reached through this same number 

8:00 am - 8:00 pm, Monday

through F riday, CST.

Technical assistance is also a vailable on-line in the F requently Asked Questions (F AQ) section a t

www.cobraelec.com or by e-mail to pr [email protected]

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 w-
ing 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 product.

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. 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 war ranty a letter will automatically be sent informing you of the 
repair charge or replacement charge. If you have any questions, please call 1.773.889.3087 for
assistance.

If You Think You Need Service

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37st manual layout.5  10/1/98 9:56 AM  Page 1

Summary of Contents for 37 ST

Page 1: ... A Consumer Service Representative can be reached through this same number 8 00 am 8 00 pm Monday through F riday CST Technical assistance is also a vailable on line in the F requently Asked Questions F AQ section a t 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 fac tory service please call Cobra first...

Page 2: ...ase 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 Servic e Live operators are available M F 8 00 am 8 00 pm CST at 773 889 3087 AutomatedTechnical Assistance available 24 hours a day seven days a week E mail questions to productinfo cobraelec com Cobra on the World WideWeb Frequen...

Page 3: ...r HI LOW 14 External Speaker Microphone 15 How Your CB Can Serve You 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 If You Think You Need Service Back Cover Features ofThis Product SoundTracker System 40 CB Channels Full 4 Watt RF Power Power Saver HI LOW L...

Page 4: ...ies 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...

Page 5: ...ired 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 37st manual la...

Page 6: ... 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 charg ing NiCad batteries with charger plugged in 6 Select Channel For higher channel push UP arrow key For lower C...

Page 7: ...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 37st manual layout 5 10 1 98 9 56 AM Page 14 ...

Page 8: ...ith a SoundTrackerTM CB 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 SoundTrackerTM CB strengthens the transmit signal by more effectively using the available RF power output of...

Page 9: ...ignals 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 37st manual layout 5 10 1...

Page 10: ...tt 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 wi...

Page 11: ... 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 CLIP repeatedly 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 of...

Page 12: ... 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 provide quick and easy communication especially 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 St...

Page 13: ... 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 providin...

Page 14: ...nty COBRA shall not be liable for any incidental consequen tial or other damages 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 Corpo...

Page 15: ...ices 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 MA EBM Ear Bud Mic 29 95 MA VOX Vox Mic 49 95 212 001...

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