Table 3-2. Converters, Frequency, Electronic CV-085/MSC-46(V) and CV-3085A/MSC-46(V) Controls and Indicators.

TM 11-5895-833-12/NAVELEX 0967-LP-550-1010/TO 31R5-2TSC54-91

Controls/indicators or connector (fig. 3-2)

Function

RF POWER meter

Indicates power level of signal connected to RF POWER

METER INPUT connector.

RF POWER METER INPUT connector

Provides access to RF POWER meter.

POWER METER RANGE rotary switch

Sets full-scale sensitivity of RF POWER meter at 0 DBM.

--10 DBM or --20 DBM.

POWER METER ZERO ADJ screwdriver adjustment

Provides zero adjustment of RF POWER meter.

RF TEST INPUT connector

Provides for insertion of rf test signal in down-converter.

RF LO SAMPLE connector

Provides sample of 6.557.05-GHz LO signal for test

purposes.

IF LO SAMPLE connector

Provides sample of 630-MHz LO signal for test purposes.

700 MHz Sample connector

Provides sample of 70-MHz down-converter if. output for

test purposes.

FAULT INDICATORS

RF LO indicator lamp

Lights red to indicate when rf phase-locked oscillator

is out-of-lock. Flashes red to indicate unacceptable

levels and quantities of phase noise bursts are being

generated.

IF LO indicator lamp

Illuminates (red) when if. phase-locked oscillator is out of

phase lock.

STATUS meter

Monitors level selected by STATUS SELECTOR switch.

STATUS SELECTOR rotary switch

Selects designated level to be monitored by STATUS meter.

RECEIVE FREQUENCY FINE TUNE DECREASE-

Provides fine tuning of rf phase-locked oscillator.

INCREASE control

AUDIBLE ALARM DEFEAT momentary pushbutton When pressed and held, deactivates LO AUDIBLE

switch

ALARM.

RECEIVE FREQUENCY SELECTOR MHz thumbwheel Selects down-converter receive frequency.

POWER ON indicator lamp

Illuminates (white) to indicate presence of 24-volt de

power.

POWER ON-OFF circuit breaker

Controls application of ac power to down-converter.

LO AUDIBLE ALARM

Sounds when rf or if. phase-locked oscillator is out of

phase lock.

MODE SELECTOR switch

Selects operation for frequency modulation (FM) or digital

(DGTL) mode.

Table 3-3.Synthesizer, Electrical Frequency 0-1868/MSC-46(V) Controls and Indicators.

Controls/indicator or connector (fig. 3-3)

Function

POWER indicator lamp

Illuminates (white) to indicate presence of operating

voltages.

POWER ON-OFF toggle switch

Controls application of ac power to frequency synthesizer.

METER FUNCTION rotary switch

Selects designated power supply voltage to be monitored by

meter.

Voltage meter

Monitors voltage selected by METER FUNCTION rotary

switch.

REFERENCE FREQUENCY-INT STD OUT connector

Provides access to inte--al frequency standard.

REFERENCE FREQUENCY-SYNTH IN connector J2

Provides access to frequency synthesizer input circuit.

REFERENCE FREQUENCY-EXT STD OUT connector

Provides access to synthesizer input from external fre-

quency standard.

MONITOR-1 MHz OUT connector J4

Provides access to output of 1-MHz circuits for test

purposes.

MONITOR-SAMPLE OUT connector J6

Provides access to frequency synthesizer output circuit for

test purposes.

REMOTE FREQUENCY CONTROL P1

Provides facility for connecting digital frequency control

output of associated up- or down-converter to frequency

synthesizer.

EXT STD IN connector J6

Provides facility for connecting frequency synthesizer to

external frequency standard.

5 MHz OUT connector J7

Provides access to output of 5-MHz circuits for test

purposes.

Change 1 3-3