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578B - Phase Matrix, Inc. Frequency Counters


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  • Model: 578B
  • Manufactured by: Phase Matrix, Inc.
  • Max. Freq.: 110.0GHz
  • Freq. Resolution [Digits]: n/a
  • Measurements: Frequency, Power
  • Extra Specifications: Source-Locking CW Microwave Frequency Counter

This family of Phase Matrix/EIP microwave frequency counters provides fully automatic source locking of virtually any electronically tunable source to the same accuracy and long term stability as the timebase oscillator in the counter.

The ability of the 575B and the 578B to accurately set and stabilize the frequency of a source generator often eliminates the need for an expensive, synthesized signal generator.

  • Source Locking
  • Frequency Range of 10 MHz to 26.5 GHz (110 GHz optional)
  • Resolution to 10 KHz
  • 200 ms phase lock time
  • Keyboard controlled frequency limit selection
  • Power measurement accuracy to ±0.5 dB typical
  • -30 dBm sensitivity
  • 200 Watt (+53 dBm) peak damage protection
  • 200 ms acquisition time
  • 20 MHz P-P FM tolerance up to a 10 MHz rate
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