| BKFC |
EXTERNAL AC OPERATING VOLTAGE IN VOLTS |
115.0 MINIMUM SINGLE VOLTAGE |
| AGTA |
BASIC SHAPE STYLE |
RECTANGULAR OR SQUARE |
| TMDN |
TYPE/MODEL DESIGNATION |
CM-77A/USM |
| RDAL |
REFERENCE DATA AND LITERATURE |
DEPT OF ARMY PUBLICATIONS: TB9-6625-336-50,19 NOV 64; TM11-6625-493-15 W/ CHANGES 1 & 2,29 SEP 64; TM 11-6625-493-20P; TM11-6625-493-45P,19 OCT 64 |
| AJKH |
IDENTIFICATION DESIGNATOR |
540B-28480 |
| ABHP |
OVERALL LENGTH |
20.750 INCHES NOMINAL |
| BJBQ |
OPERATING AC FREQUENCY IN HERTZ |
50.0 MINIMUM SINGLE VOLTAGE |
| BHTB |
FREQUENCY PER CHANNEL |
10.0 MEGAHERTZ MINIMUM OPERATING CHANNEL |
| BJBM |
MAXIMUM CONTINUOUS OPERATING TIME IN HOURS |
NOT RATED |
| NTRD |
ENTRY DATE |
70-12-01 |
| FTLD |
FUNCTIONAL DESCRIPTION |
EXTENDS FREQUENCY MEASUREMENT RANGE OF AN/USM-26 & AN/USM-207A INTO MICROWAVE RANGE; ALONG W/ AN/USM-26 OR -207A CAN MEASURE FREQUENCIES UP TO 12.4 GHZ,OR W/ AN EXTERNAL MIXER 1-18 GHZ; CAN BE USED W/OUT A FREQUENCY COUNTER TO MEASURE FREQUENCIES BELOW 4 GHZ W/IN ABOUT PORM 0.5 PCT; FREQUENCY IS DETERMINED BY ZERO-BEATING THE UNKNOWN SIGNAL W/ A HARMONIC OF AN EXTREMELY STABLE SIGNAL GENERATED W/IN & TO MEASURE CM-77A FUNDAMENTAL FREQUENCY ON A COUNTER; MULTIPLYING COUNTER READOUT BY HARMONIC CAUSING THE ZERO-BEAT GIVES INPUT FREQUENCY; HARMONIC NO. IS DETERMINED FROM PREVIOUS KNOWLEDGE OF INPUT FREQUENCY OR BY COMPUTATION; ZER/-BEAT IS DISPLAYED ON INTERNAL OSCILLOSCOPE |
| BHSX |
CIRCUIT CONSTRUCTION TYPE |
ELECTRON TUBE |
| AECR |
VIBRATION RESISTANCE RANGE IN HERTZ |
NOT RATED |
| BJBQ |
OPERATING AC FREQUENCY IN HERTZ |
1000.0 MAXIMUM SINGLE VOLTAGE |
| AKAE |
MAXIMUM OPERATING ALTITUDE RATING |
NOT RATED |
| AFDP |
SHOCK RESISTANCE RATING IN GRAVITATIONAL UNITS |
NOT RATED |
| AFSU |
AVERAGE LIFE MEASUREMENT |
NOT RATED |
| BHTH |
ATTENUATION IN DECIBELS |
NOT RATED |
| BHTL |
OVERALL GAIN |
NOT RATED |
| FCLS |
FUNCTIONAL CLASSIFICATION |
AA-6.3 |
| ABKW |
OVERALL HEIGHT |
12.500 INCHES NOMINAL |
| BHTJ |
AVERAGE POWER RATING PER CHANNEL |
NOT RATED |
| AKNA |
INCLOSURE TYPE |
ENCASED |
| BKFC |
EXTERNAL AC OPERATING VOLTAGE IN VOLTS |
230.0 MAXIMUM SINGLE VOLTAGE |
| ABMK |
OVERALL WIDTH |
15.250 INCHES NOMINAL |
| RTSE |
RELATIONSHIP TO SIMILAR EQUIPMENT |
INTERCHANGEABLE W/ 6625009739267 & 6625007355167; SIMILAR TO CM-77/USM |
| AFGA |
OPERATING TEMP RANGE |
NOT RATED |
| BHTN |
IMPEDANCE RATING PER CHANNEL |
NOT RATED |
| AMQY |
INSTALLATION DESIGN |
TOP OF CABINET/COUNTER |
| BHTB |
FREQUENCY PER CHANNEL |
12.4 GIGAHERTZ MAXIMUM OPERATING CHANNEL |
| FAAZ |
PHASE |
SINGLE |