Frequency Standard

Features

Specifications

• Overall Height:
  5.200 inches
• Overall Width:
  19.000 inches
• Ac Voltage Rating:
  115.0 volts and 230.0 volts
• Dc Voltage Rating:
  Between 22.0 volts and 30.0 volts
• Frequency Rating:
  Between 47.0 hertz and 400.0 hertz
• Frequency Range Rating:
  +5.000/+10.000 megahertz
• Frequency Channel Quantity:
  2
• Individual Channel Frequency:
  5.0 megahertz and 10.0 megahertz
• Unit Type:
  Standard
• Unpackaged Unit Weight:
  60.000 pounds
• Mounting Method:
  Rack
• Recording Device Accommodation:
  Not provided
• Phase:
  Single
• Supplementary Features:
  Without -075 indicates 3 year warranty on cesium beam tube
• Federal Supply Class (fsc):
  Electrical and electronic properties measuring and testing instruments
• National Stock Number (nsn):
  6625-01-365-1949
• Special Features:
  Accuracy +/- 7x10-12; settability +/- 3x10-12; operating temp range 0 to 50deg. C; stability +/-3x10-12 over the life of the tube; spectral purity >81db for 10mhz and >87 for 5mhz; amplitude 1vrms into 50 ohm load; monitor output is a type d connector; warmup time is 20min for 10 mhz and 45 min for 5mhz; front panel connectors for 1pps, sync input, zeeman input, rf outputs; operating humidity, 95% up to 50c; option -116 is time of day display and a 1pps output; opt -075 is for an 8 year warranty on cesium beam tube; internal microprocessor provide for power up automatic lock routine; controlled by front panel switches and remote control through rear panel connector