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
37st manual layout.5 10/1/98 9:56 AM Page 1
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
37st manual layout.5 10/1/98 9:56 AM Page 4
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
37st manual layout.5 10/1/98 9:56 AM Page 7
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.
37st manual layout.5 10/1/98 9:56 AM Page 8
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
37st manual layout.5 10/1/98 9:56 AM Page 10
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