Hewlett-Packard 5065A Rubidium Frequency Standard

Orig CostLow BidHigh Bidaverage
$ ? ...
$760.00 4/4/02 #1717749421 testequipment (5065A-002)
$362.00 8/7/04 #3830502554 screaming_eagle (5 bids $200 start) (untested - no power cord)
$206.50 8/21/04 #3833838787 screaming_eagle101 (3 bids $200 start) (no power cord - untested, no addon Power Supply)
$591.00 8/24/04 #3834382374 astglobal-dot-com (16 bids $200 start) (w/Power Supply - checked b lab tech)
$549.99 (+~$68 ship) 4/19/09 #120408451674 sburney (buy-it-now) (tested)

  • .
  • .
  • .
  • .





    Option 001 : Provides a Digital Clock display and a one pluse per second (1 PPS) electrical output.
    Option 002 : Standby battery, provides a 10-minute minimum power source (at 25° C) in the event of external AC power failure. A front-panel lamp flashes when AC power is interrupted and lights continuously during fast charges.
    Option 003 : Combines Option 001 and option 002

    K02-5060A add-on Power Supply increases shipping weight to 150 pounds.
  • The 5065A is an atomic-type secondary frequency standard which utilizes a rubidium vapor resonance cell as the stabilizing element
  • Outputs: 5 MHz, 1 MHz, 100 kHz;1 Vrms into 50 ohms
  • 1 pps clock output
  • Frequency stability: 1 x 10 to the -11th per month
  • SSB phase noise (offset 1 kHz from signal): -140 dB
  • Frequency settability: 2 x 10 to the - 12th
  • Connectors: BNC(f)
  • 100, 120/220, 240 Vac 10%; 50/60/400 Hz operation; or 23 to 30 Vdc

    HP 5065A Rubidium Vapor Frequency Standard is a compact, self-contained secondary frequency standard which uses an optically-pumped Rubidium vapor cell as the reference element. a 5 MHz oscillator is stabilized aginst a natural atomic reasonance, the hyperfine transition of Rubidium 87. The technique produces a long-term stability of better than 1x10*(-10) per month with excellent short-term stability which is conservatively rated at less tha 5x10*(-12) rms averaged over a one-second period. Output frequencies are 5MHz, 1 MHz, and 100MHz.

    Frequency setting for any offset UTC time reference is accomplished by changing the microwave excitation frequency and the magnetic field applied to an Rb 87 vapor cell. Thumbwheel switch control (of a digital frequency synthesizer) provides approximate step adjustment of the microwave excitation frequency with a range off 1000 parts in 10*(10). In addition, the front-panel MAGNETIC FIELD control provides for exact adjustment of the Rb 87 hyperfine transition with a resolution of 2 parts in 10*(12)