Cobra Electronics 2010 GTL WX Section III Installation, Location, Base Station Antenna

Page 7

Section III Installation

LOCATION

Prior to beginning operation of the transceiver, a basic installation must be prepared. Installation of the transceiver itself is a rather simple procedure.

In selecting the location for the unit, two basic factors must be considered:

1.Access to a 120V, 60 Hz power source.

2.The location must be convenient for running the antenna lead-in cable if outside antenna installation is proposed.

BASE STATION ANTENNA

Since the maximum allowable power output of the transmitter is limited by the FCC, the antenna is the most important factor affecting transmission distance. Only a properly matched antenna system will allow maximum power transfer from the 50- ohm transmission line to the radiating element.

The recommended method of antenna tuning is to use the built-in SWR meter to adjust the antenna tuning for minimum reflected power on channel 21.

The radio may be used with any type of 50-ohm base station antenna. A ground plane vertical antenna will provide the most uniform horizontal coverage. This type of antenna is best suited for communication with a mobile unit. For point-to-point operation where both stations are fixed, a directional beam will usually increase communicating range since this type of antenna concentrates transmitted energy in one direction. The beam antenna also allows the receiver to "listen" in only one direction thus reducing interfering signals.

Antenna height is an important factor when maximum range is desired. Keep the antenna clear of surrounding structures or foliage. FCC regulations for base station antenna height are:

1.Omnidirectional antennas may not be higher than 60 feet above the ground when using a tower, mast or pole, and no higher than 20 feet above an existing structure.

These are only general regulations applicable to most but not all parts of the nation. Locations near airports and some military installations are subject to different rules; therfore, it is best to contact your nearest Federal Communications Commission office for information regarding your specific area.

MOBILE OPERATION/EMERGENCY POWER OPERATION

It is possible to operate the Cobra 2010 GTL WX from an external 13.8V DC power supply for emergency conditions or from an automobile battery for mobile operation. We recommend using a genuine Cobra DC power cord (not supplied). The DC power cord can be purchased through your local dealer, or direct from Cobra. See CB radio Accessories on the back page of this manual.

5

Page 6 Page 8
Image 7
Page 6 Page 8
Contents Solid State Citizens Band SSB/AM TWO-WAY Radio Base Station Cobra NWR Frequencies and Transmission Characteristics What Is Weather Radio?CB Story Frequency Range Section I IntroductionChannel MHz General Section II SpecificationsTransmitter CLOCK/COUNTER ReceiverWeather WX Receiver Base Station Antenna Section III InstallationMobile OPERATION/EMERGENCY Power Operation LocationControl Functions Controls and IndicatorsSection IV Operation Section IV Operation ANT Indicator FunctionsOperating Procedure to Transmit Operating Procedure to ReceiveOperating Procedure to Receive Weather Band To SET Time Frequency COUNTER/LCD Digital ClockFREQ. CTR./CLOCK Receiving SSB Signals Receiving SSB Signals FCC Warning Section V Maintenance and AdjustmentCode Section VI AppendixCode Meaning HOW Your CB can Serve YOU FEW Rules That should be ObeyedPermitted Example Message USE Channel 9 for Emergency Messages onlyWire MIC Cable Alternate Microphones and InstallationSection VI Appendix Section VI Appendix If You Think You Need Service, Call If You Need ServiceHours a day, 7 days a week Warranty Cobra CB Radio Accessories Cobra
Top Page Image Contents