Cobra 2010wx Base Cb Tranciever Manual

9
SWR  CALSWRMODCALLSBAMUSB
MINFREQ. CTRCLOCKAM / SSB  BASE  STATION  WITH  WEATHER  ALERT AM / SSB  BASE  STATION  WITH  WEATHER  ALERT
HOUR
VOICELOCK
MAXMIN
RF GAINDYNAMIKE
POWER
PHONEVOLUME
MICSQUELCH
COARSE
NBSWRCAL 100%
01.52
3MODSIGNAL+30R X
TX
ANTUSB
LSB
AM01
9
810
7
6
5
4
311
12
13
14
15
16
17
18
19
203
2
5
9 34 RF PWR
ANL
TUNING
WX  CH 9
2010  GTL  WX 
Section IV Operation (Continued)
INDICATOR FUNCTIONS
1. MODULATION METER. Indicates the percent modulation (AM only).
NOTE
The SWR/SWR CAL/MOD...

10
OPERATING PROCEDURE TO RECEIVE
1. Place the WX/CB Switch in the CB position.
2. Turn the set ON by pressing the POWER Switch.
3. Adjust the VOLUME for a comfortable listening level.
4. Set the Channel selector switch to the desired channel.
5. Set RF GAIN fully clockwise.
6. Set the Mode Selector to desired mode for LSB, AM or USB.
7. Adjust the VOICE LOCK control to clarify the SSB signals or to optimize AM
signals.
8. Listen to the background noise from the speaker. Turn the SQUELCH control
slowly...

OPERATING PROCEDURE TO RECEIVE WEATHER BAND continued
3. If threatening weather is nearby, the National Weather Service may broadcast
a 10 second alert tone. This tone will be heard through the CB, even if the
WX/CB Switch is in the CB mode or the unit is turned off (see NOTE below).
This enables you to monitor CB frequencies and still be warned by the
National Weather Service Emergency Alert. When you hear the alert, place
the WX/CB Switch in the WX position. You will then be able to hear the
Weather...

12
RECEIVING SSB SIGNALS
There are three types of signals presently used for communications in the Citizens
Band: AM, USB, and LSB. When the MODE switch on your unit is placed in the AM
position, only standard double-sideband, full carrier signals will be detected. An SSB
signal may be recognized while in the AM mode by its characteristic ÒDonald DuckÓ
sound and the inability of the AM detector to produce an intelligible output. The USB
and LSB modes will detect upper sideband and lower sideband...

RECEIVING SSB SIGNALS continued
Once the desired SSB mode has been selected, frequency adjustment may be necessary
in order to make the incoming signal intelligible, the VOICE LOCK control allows the
operator to vary frequency above and below the exact-center frequency of the received
signal. If the sound of the incoming signal is high or low pitched, adjust the operation
of the VOICE LOCK. Consider it as performing the same function as a phonograph
speed control. When the speed is set too high, voices...

14
 Section V Maintenance and Adjustment
The COBRA 2010 GTL WX transceiver is specifically designed for the environment
encountered in base station installations. The use of all solid state circuitry and its light
weight result in high reliability. Should a failure occur, however, replace parts  only
with identical parts. Do not substitute. Refer to the schematic diagram and parts list.
     NOTE
If the performance described in the OPERATION and MAINTENANCE
AND ADJUSTMENT sections is not obtained, review...

15
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 the 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...

16
      Section VI Appendix  (Continued)
A FEW RULES THAT SHOULD BE OBEYED
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 over-powering them with
illegally amplified transmitter power, or illegally high antennas.
3. You canÕt use the CB to promote illegal activities.
4. You are not allowed to use profanity.
5....

Section VI Appendix  (Continued)
17
        USE CHANNEL 9 FOR EMERGENCY MESSAGES ONLY
FCC gives the following examples of permitted and prohibited types of communica-
tions for use on Channel 9. These are guidelines and are not intended to be all-
inclusive.
Permitted Example Message
Yes ÓA tornado sighted six miles north of town.Ó
No ÓThis is observation post number 10. No tornado sighted.Ó
Yes ÓI am out of gas on Interstate 95.Ó
No ÓI am out of gas in my driveway.Ó
Yes There is a four-car collision at...

      Section IV Operation (Continued)
ALTERNATE MICROPHONES AND INSTALLATION
For best results, the user should select a low-impedance dynamic type microphone
or a transistorized microphone. Transistorized type microphones have a low output
impedance characteristic. The microphones must be provided with a five-lead
cable. The audio conductor and its shielded lead comprise two of the leads. The
third lead is for receive control, the forth is for grounding and fifth is for transmit
control.
The microphone...