AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Converter Frequency |
| Federal Supply Group (FSG) | Instruments and Laboratory Equipment |
| Federal Supply Class (FSC) | 6625 Electrical and Electronic Properties Measuring and Testing Instruments |
| National Item Identification Number (NIIN) | 00-080-7204 (000807204) |
| NCB Code | USA (00) |
| Manufacturer | Joint Electronics Type Designation System, Boustead Electric And Mfg Co, Keysight Technologies Inc, Hewlett-Packard Company |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| 540B | joint electronics type designation system | converter frequency | RFQ |
| 540B | boustead electric and mfg co | converter frequency | RFQ |
| 540B | keysight technologies inc | converter frequency electronic | RFQ |
| 540B | hewlett-packard company | converter frequency | RFQ |
| CM-77A-USM | hewlett-packard company | converter frequency | RFQ |
| CM-77A-USM | boustead electric and mfg co | converter frequency | RFQ |
| CM-77A-USM | joint electronics type designation system | converter frequency | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| BJBQ | Operating Ac Frequency In Hertz | 50.0 MINIMUM SINGLE VOLTAGE |
| FTLD | Functional Description | EXTENDS FREQUENCY MEASUREMENT RANGE OF AN/USM-26 AND 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 AND 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 |
| BJBQ | Operating Ac Frequency In Hertz | 1000.0 MAXIMUM SINGLE VOLTAGE |
| BHSX | Circuit Construction Type | ELECTRON TUBE |
| AMQY | Installation Design | TOP OF CABINET/COUNTER |
| FAAZ | Phase | SINGLE |
| RTSE | Relationship To Similar Equipment | INTERCHANGEABLE W/ 6625-00-973-9267 AND 6625-00-735-5167; SIMILAR TO CM-77/USM |
| BKFC | External Ac Operating Voltage In Volts | 230.0 MAXIMUM SINGLE VOLTAGE |
| TMDN | Type/Model Designation | CM-77A/USM |
| BKFC | External Ac Operating Voltage In Volts | 115.0 MINIMUM SINGLE VOLTAGE |
| FCLS | Functional Classification | AA-6.3 |
| AGTA | Basic Shape Style | RECTANGULAR OR SQUARE |
| RDAL | Reference Data And Literature | DEPT OF ARMY PUBLICATIONS: TB9-6625-336-50,19 NOV 64; TM11-6625-493-15 W/ CHANGES 1 AND 2,29 SEP 64; TM 11-6625-493-20P; TM11-6625-493-45P,19 OCT 64 |
| ABHP | Overall Length | 20.750 INCHES NOMINAL |
| MRC | Decoded Requirement | Clear Text Reply |
| AJKH | Identification Designator | 540B-28480 |
| ABKW | Overall Height | 12.500 INCHES NOMINAL |
| ABMK | Overall Width | 15.250 INCHES NOMINAL |
| NTRD | Entry Date | 70-12-01 |
| AFSU | Average Life Measurement | NOT RATED |
| BHTB | Frequency Per Channel | 10.0 MEGAHERTZ MINIMUM OPERATING CHANNEL |
| AKNA | Inclosure Type | ENCASED |
| BHTB | Frequency Per Channel | 12.4 GIGAHERTZ MAXIMUM OPERATING CHANNEL |
| Relevant Components for NSN - 6625-00-080-7204, 6625000807204 | ||||
| 6680-01-250-1410 (6680012501410) | 6670-01-287-2094 (6670012872094) | 6605-01-112-6478 (6605011126478) | 6680-00-426-5614 (6680004265614) | |
| 6685-01-287-1436 (6685012871436) | 6625-01-298-1400 (6625012981400) | 6680-00-966-0154 (6680009660154) | 6640-00-425-3000 (6640004253000) | |
| 6680-01-395-8464 (6680013958464) | 6610-00-779-6929 (6610007796929) | 6625-01-144-2626 (6625011442626) | 6650-00-907-6351 (6650009076351) | |
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