INSTAllATION
CAUTION: The MC 722 will operate only with a nominal 12 volt negative ground battery system.
CHOOSING A LOCATION
1.Select a location that is free from spray and splash.
2.Select a location that minimizes exposure to direct sunlight (including that com- ing through windows).
3.Select a location that allows free air flow around the heat sink on the rear of the radio.
4.Select a location well away from the ship's compass. Auxiliary speakers also should be located away from the compass.
5.Select a location as close to the battery as possible (in order to keep battery leads as short as possible). Direct connection to the battery is most desirable. If direct connection cannot be made with the supplied power lead, any extension should be made with at least #10 AWG wire.
ENGINE NOISE SUPPRESSION
Interference from the impulse noise generated by the electrical systems of engines is sometimes a problem with radios. The MC 722 has been designed to be immune to ignition impulse noise and alternator noise. However, in some installations it may be necessary to take measures to further reduce the effect of noise interference. All DC battery wires, antenna leads and accessory cables should be routed away from the engine and engine compartments and from power cabling carrying particularly high cu rrents.
In severe cases of impulse noise interference, it may be necessary to install a noise suppression kit that is available from your UNIDEN Dealer.
ANTENNA CONSIDERATIONS
1.Keep the antenna lead as short as possible. Long antenna leads can cause substan- cial loss of performance for both receiving and transmitting.
2.Locate your antenna as high as possible and clear from metal objects. The reliable range of coverage is a direct function of antenna height. The general rules for antennas are: The more gain the greater the range and, the higher above the water line the greater the ranger.
MOUNTING CONSIDERATIONS
Keep in mind the flexibility designed into the MC 722 so that you can most con- veniently use your radio. The points which should be considered are:
1.Universal mounting bracket may be installed on either top or bottom for shelf bulkhead, or overhead mounting.
2.The microphone connector faces forward allowing convenient