NSN 6625-01-118-7857
Part Details | FREQUENCY STANDARD
6625-01-118-7857 An item that can generate a fundamental frequency with a high degree of accuracy. Harmonics of this fundamental are then used as a reference point for checking throughout the radio spectrum. The standard may be stable crystal oscillator, noncrystal oscillator, tuning fork, atomic beam, molecular beam, gas cell, quantum mechanical resonator, or the like.
Alternate Parts: 5061A004, 5061A004, 5061A-004, 6625-01-118-7857, 01-118-7857, 6625011187857, 011187857
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | SEP 11, 1981 | 01-118-7857 | 42641 ( FREQUENCY STANDARD ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 6625-01-118-7857
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 5061A004 | 28480 | HEWLETT-PACKARD COMPANYDBA HP |
| 5061A-004 | 1LQK8 | KEYSIGHT TECHNOLOGIES, INC. |
Technical Data | NSN 6625-01-118-7857
| Characteristic | Specifications |
|---|---|
| UNIT TYPE | GL ANY ACCEPTABLE |
| FREQUENCY RANGE RATING | +0.100 TO +5.000 MEGAHERTZ |
| AC VOLTAGE RATING | 115.0 VOLTS NOMINAL AND 230.0 VOLTS NOMINAL |
| FREQUENCY RATING | 50.0 MEGAHERTZ NOMINAL AND 60.0 MEGAHERTZ NOMINAL AND 400.0 MEGAHERTZ NOMINAL |
| PHASE | SINGLE |
| OVERALL LENGTH | 16.750 INCHES NOMINAL |
| OVERALL WIDTH | 16.375 INCHES NOMINAL |
| OVERALL HEIGHT | 8.750 INCHES NOMINAL |
| MOUNTING METHOD | BASE |
| RECORDING DEVICE ACCOMMODATION | NOT PROVIDED |
| SPECIAL FEATURES | OPT 004 IS HIGH PERFORMANCE CESIUM BEAM TUBE, AVG LIFE 10,000 HRS; ACCURACY:PORM 7 X 10E12 OVER TEMP 0-50 DEG C; STABILITY: PORM 3 X 10E12(1); SSB PHASE NOISE SIGNAL (1 HZ BW): -28 DB AT 10EM3 HZ/M140 DB AT 10E3; DC MAGNETIC FIELD STABILITY: PORM 2 X 10EM13, 2 GAUSS FIELD; FRONT AND REAR BNC; REPRODUCABILITY: PORM 3 X 10EM12(3); SETTABILITY: PORM 1 X 10EM13(3); AC MAGNETIC FIELD: LESS THAN 2 X 10EM12 FOR 2 GAUSS PEAK |
| END ITEM IDENTIFICATION | OPERATION SYSTEMS AND NATIONAL LABORATORIES REFERENCE STANDARDS |
| UNPACKAGED UNIT WEIGHT | 70.000 POUNDS |
| FUNCTIONAL DESCRIPTION | PROVIDES PRECISE TIMING FOR FREQUENCY CONTROL BY PUTTING THE CORRECT FREQUENCY WITHIN VERY NARROW LIMITS |
| REFERENCE DATA AND LITERATURE | HP 1975 PRODUCT CATALOG |