Model 5112 Operation Manual
Applied Instruments Inc
1 INTRODUCTION
The Model 5112 generates RF continuous wave signals for use as reference signals when
aligning 2-Way CATV forward and return bands. This fully portable, battery-powered
unit may be configured with one to four RF carriers. Up to six carriers may be used
when all carriers are less than 180 MHz. Each carrier may be activated individually or
simultaneously. The optional built-in attenuator provides up to 70 dB of carrier amplitude
range. The compact design allows convenient return alignment in conjunction with
forward sweep or rough balance efforts. With spectral purity of at least 60 dBc, the
carriers may also be used for hum and noise evaluation tests. The unit will operate
continuously for multiple hours, longer with low frequency carriers. It is enclosed in a
rugged, portable case.
1.1 Symbols Used
The following symbols are used in this manual and/or marked on the instrument.
Hazardous areas on the instrument are marked with this symbol.
Consult this manual to learn the nature of the hazard and proper actions for
safe operation.
Indicates an earth ground terminal.
Indicates possibility of electric shock.
Indicates a protective conductor terminal
1.2 Safety Instructions
•
Read and follow all instructions in this manual.
•
Risk of electrical shock exists if the unit is opened when AC is connected.
•
Unplug and turn unit off before cleaning. Clean with a dry cloth only.
•
Use only the cord supplied with the unit or an equivalent cord rated for at least 1.5
Amps and containing a protective earth ground conductor.
•
Servicing should be done by qualified service technicians only.
•
Use of the instrument in a manner not consistent with the instructions in this
manual may impair the safety features and lead to damage or injury.
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