HP 538X Family

Product Summary

The Hewlett-Packard 538X family of low-cost frequency counters measure frequencies to 3 GHz. Features include high sensitivity, ease-of-use, and remote programmability. The half-rack-width package is suitable for bench, field, and systems applications. A 12-digit liquid crystal display is easy to read, even in sunlight, and uses large characters that are visible from the end of a bench or at the top of a test system. Remotely accessible, the display can be used for messages, operator prompts, as well as measurement units.

Related product datasheets available online:

HP 5384A Frequency Counter
HP 5385A Frequency Counter
HP 5386A 3 GHz Frequency Counter

Product Features

• Meaningful display units extend readability

• High input sensitivity (-23.5 dBm) improves low-level measurements

• Interpolar-enhanced reciprocal counting provides high performance at low cost

• Proven reliability and serviceability

• Full remote programmability via standard HP-IB

• Optional ovenized timebase increases stability

Product Specifications

Input Characteristics -- Channel A

	Range: 10 Hz to 100 MHz
		Sensitivity [MAN LEVEL] off:
		15 mVrms sine wave 50 Hz to 100 MHz
		25 mVrms sine wave 10 Hz to 50 Hz
		45 mV pk-pk 5 ns minimum pulse width

	Dynamic Range: 45 mV to 4V pk-pk X attenuator setting

	Impedance:
		X1:	1 Mohm NOMINAL || <25 pF
		X20:	500 kohm NOMINAL || <25 pF

	Attenuator: X1 or X20 NOMINAL, X20 increases to X40 below 50 Hz

	Trigger Level:
		[MAN LEVEL] ON: variable from -0.1V to +0.1V X attenuator 
			setting about average signal value
		[MAN LEVEL] OFF: automatically set to average value 
			of signal

	Damage Level:

		X1:	10 - 200 Hz 350V (dc + ac peak)
				0.2 - 420 kHz 170V (dc + ac peak)
				0.42 - 10 MHz (5 X 10^7 Vrms Hz)/FREQ
				>10 MHz 5 Vrms

		X20:	<1 MHz, same as X1
				>1 MHz, 50 Vrms


TCXO Timebase

	Frequency: 10 MHz

	Aging Rate: <1 X 10e-7/month

	Temperature: <2 X 10e-6, 0-40 degrees C (+/-1 X 10e-6, 0 - 40 degrees C 
		if referenced to 25 degrees C and set to the offset frequency)

	Line Voltage: <5 X 10e-8 for +/-10% variation

Product Ordering Information

HP 5384A	Frequency Counter, 225 MHz
   Opt 001	High Stability TCXO Timebase
   Opt 004	High Stability Ovenized Timebase
   Opt 005	Battery Pack

HP 5385A	Frequency Counter, 1.0 GHz
   Opt 004	High Stability Ovenized Timebase
   Opt 005	Battery Pack

HP 5386A	Frequency Counter 3.0 GHz
   Opt 004	High Stability Ovenized Timebase

 

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Page Updated: Thursday June 19 16:08:43 UTC 1997