NSN 6625-00-080-7204
Part Details | ELECTRONIC FREQUENCY CONVERTER
6625-00-080-7204 An electronic device having frequency mixing circuits and an integral oscillator which mixes the incoming frequency(ies) with the oscillator frequency, the resultant frequency(ies) being a combination of the two sources. Includes equipment that performs these functions at either radio or power line frequencies. Excludes items that change frequency by means of rotating equipment or rectifier and switching or keying circuitry.
Alternate Parts: CM77AUSM, 540B, CM77AUSM, CM-77A/USM, 540B, 6625-00-080-7204, 00-080-7204, 6625000807204, 000807204
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-080-7204 | 00329 ( CONVERTER, FREQUENCY, ELECTRONIC ) |
REFERENCE DRAWINGS & PICTURES
RECTANGULAR OR SQUARE
Cross Reference | NSN 6625-00-080-7204
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| CM77AUSM | 80050 | BOUSTEAD ELECTRIC AND MFG CO |
| 540B | 28480 | HEWLETT-PACKARD COMPANYDBA HP |
| CM-77A/USM | 80058 | JOINT ELECTRONICS TYPE DESIGNATIONSYSTEM |
| 540B | 1LQK8 | KEYSIGHT TECHNOLOGIES, INC. |
Technical Data | NSN 6625-00-080-7204
| Characteristic | Specifications |
|---|---|
| CIRCUIT CONSTRUCTION TYPE | ELECTRON TUBE |
| AVERAGE LIFE MEASUREMENT | NOT RATED |
| PHASE | SINGLE |
| INCLOSURE TYPE | ENCASED |
| INSTALLATION DESIGN | TOP OF CABINET/COUNTER |
| BASIC SHAPE STYLE | RECTANGULAR OR SQUARE |
| OVERALL LENGTH | 20.750 INCHES NOMINAL |
| OVERALL HEIGHT | 12.500 INCHES NOMINAL |
| OVERALL WIDTH | 15.250 INCHES NOMINAL |
| IDENTIFICATION DESIGNATOR | 540B-28480 |
| FUNCTIONAL CLASSIFICATION | AA-6.3 |
| 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 |
| TYPE/MODEL DESIGNATION | CM-77A/USM |
| RELATIONSHIP TO SIMILAR EQUIPMENT | INTERCHANGEABLE W/ 6625009739267 & 6625007355167; SIMILAR TO CM-77/USM |
| 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 |
| ENTRY DATE | 70-12-01 |