Technical data

Aeroflex Operation Manual
TABLE OF CONTENTS - NAV 2000R – REVISION 0 – JULY 26, 2007 - PAGE TC-3
SECTION IV
THEORY OF OPERATION (Con't)
SECTION PAGE NUMBER
4.5.12 VOLTAGE REFERENCE .....................................................................4-17
4.5.13 DETECTED AUDIO HI/LO INDICATION .............................................4-18
4.5.14 PROGRAMMABLE STEP ATTENUATOR CONTROL........................4-18
4.5.15 RF MODUALTOR BOARD...................................................................4-18
4.5.16 MODULATING SIGNAL TEMP. COMPENSATION NETWORK .........4-18
4.5.17 AUDIO MODULATED AMPLIFIER ......................................................4-19
4.5.18 RF LEVELING AMPLIFIER .................................................................. 4-20
4.5.19 FIXED GAIN AMPLIFIERS...................................................................4-20
4.5.20 DETECTOR..........................................................................................4-20
4.5.21 LPF & INTEGRATOR...........................................................................4-21
4.5.22 SCALING & RF LEVEL SET ................................................................4-21
4.5.23 RF HIGH/LOW INDICATION................................................................ 4-22
4.6 PROGRAMMABLE STEP ATTENUATOR........................................... 4-22
4.7 SYNTHESIZER CIRCUITS ..................................................................4-22
4.7.1 REFERENCE/CONTROL BOARD CIRCUITS.....................................4-22
4.7.2 RF/OUTPUT BOARD CIRCUITS.........................................................4-23
4.7.3 MAIN VCO............................................................................................4-25
4.7.4 400 MHz VCO ......................................................................................4-25
4.8 REVERSE POWER PROTECTION
(-50 UNIT WITH MOD STATUS 7).......................................................4-25
SECTION V
MAINTENANCE INFORMATION
5.1 BILLS OF MAT, ASSY DWGS, SCHEMATICS & TEST PROCED .....5-1
APPENDIX A
GPIB COMMAND QUICK REFERENCE .............................................A-1