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Microwave Frequency and Pulse Counter. In addition to being a great general purpose microwave frequency counter, the 585B can measure the frequency of repetitive pulses as narrow as 50 ns.
Frequency Range
Band 0: 100 Hz to 250 MHz (CW only)
Band 1: 250 MHz to 1 GHz
Band 2: 0.95 GHz to 20 GHz (585C) or 26 GHz (588C)
Sensitivity
Band 0: -20 dBm
Band 1: -20 dBm
Band 2: -20 dBm to 2 GHz,
-25 dBm 2 to 12.4 GHz,
-20 dBm to 20 GHz,
-15 dBm to 26.5 (588C)
Pulse Parameters
50 nS minimum pulse width
10 nS minimum profile window
1 Hz to 4 MHz PRF
Pulse Width Measurement 50 nS to 1 sec
FM Tolerance 20 MHz p-p
Standard Time Base
10 MHz TCXO
Stability:
Aging Rate <1x10-7/mo.
Short Tern <1x10-9 RMS 1s ave.
Temp <1x10-6 0 to 50C
Warm up time: 30 min
Optional High Stability Time Base
10 MHz OCXO
Stability:
Aging Rate <5x10-10/day (after 24hrs warm up.)
Short Tern <2x10-10 RMS 1s ave.
Temp <3x10-9 (0 to 50C)
10% line voltage change <2x10-10
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