Frequency Counters

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Out of stock

This HP53181A with option 010 (High Stability Oven) has 2 channels and is capable of measuring frequencies from 100Khz

up to 3 Ghz on channel 2 and up to 100Khz on channel 1. This unit is in nice condition.

001 Oven Timebase

002 Battery

Key Features & Specifications

  • Single, ultra-wideband CW microwave counter input, 50 MHz to 20 GHz
  • -70 dBm to +44 dBm power meter range with Keysight 8480 series sensors
  • High resolution/accuracy +/- 50 Vdc DVM
  • GPIB and RS-232 interfaces standard
Out of stock

This is an older model but works well.

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This Agilent 53150A Microwave Frequency Counter unit is in immaculate condition. 

Key Features & Specifications

  • Ultra-wideband, single input from 50 MHz to 20 GHz
  • Simultaneous frequency and power measurement with analog peaking indicator
  • Accuracy: +/-1 LSD +/- residual stability +/-(timebase error x frequency)
  • GPIB and RS-232 interfaces standard
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We have many EIP 28B microwave counters in stock with various options. They are all in excellent  condition. It measures from 10hz to 26.5ghz. NIST calibration is available. They have been tested down to -25dbm.

EIP model 548B 12 digit frequency counter; 10 Hz to 26.5 GHz (up to 110 GHz with optional sensors, not supplied) with a resolution up to 1 Hz, even at the highest frequencies. You’ll note the option label says it has option WB36. I contacted Phase Matrix and inquired what that meant and the letter of response is included in the photos. It confirms the unit has the options 05,06, and 08.

EIP model 548B 12 digit frequency counter; 10 Hz to 26.5 GHz (up to 110 GHz with optional sensors, not supplied) with a resolution up to 1 Hz, even at the highest frequencies. You’ll note the option label says it has option WB36. I contacted Phase Matrix and inquired what that meant and the letter of response is included in the photos. It confirms the unit has the options 05,06, and 08.

This EIP 575 10hz to 18Ghz measuring instrument works as it is expected. I tested each of the 3 bands. The unit was able to capture signals as low as – 24dbm to -27 dbm (based upon the 83732A meter) depending which band was selected. I measured from 10Mhz up to 18Ghz and everything seemed relatively accurate as you can see from the photos. It is not calibrated but I feel pretty confident it would pass without alignment even being necessary.

This EIP 545A has 3 inputs, band 1, 2 and 3. Band A measures from 10 Hz to 100Mhz, Band 2 measures from 10Mhz to 1 Ghz and Band 3 measures from 1 Ghz to 18 Ghz. I have tested all these inputs at various frequencies and output levels and they all seem to work fine. It has options 02,04, and 08. 02 is a power meter, 04 is medium stability oven for timebase, and 08 is GPIB.

This unit is in good condition with normal wear and tear. It has a clear and bright LCD panel and comes with NIST calibration performed December 2012 good for 2 years. It has option 01 which is an oven controlled crystal oscillator timebase.

Out of stock

This Agilent branded 53131A with option 030 ( third channel measuring up to 3 Ghz ) is in beautiful condition. It has a really bright LED display, passes self check and functional check and looks nearly flawless.

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