HP 8494H DC to 18 GHz Programmable Step Attenuator

Product Summary

The HP 8494H dc to 18 GHz programmable step attenuator offers exceptional repeatability and reliability. Attenuation is provided in 1 dB steps from 0 to 11 dB. Precision gold-plated leaf springs ensure long life (over 5 million cycles) and very high attenuator repeatability (typically 0.01 dB). To improve measurement accuracy, NIST traceable data (SWR and attenuation) is available as Option 890. A maximum switching time of 20 ms (including contact settling) speeds automatic testing. Custom step attenuator/switch combinations are possible. The HP 11716A/B/C interconnect kits provide quick connection of HP 8494/5/6/7 1 dB and 10 dB step attenuators in series for greater dynamic range with 1 dB steps.

Product Features

• Excellent repeatability (typically 0.01 dB)

• Long life (over five million cycles per section)

• High accuracy (typically ±2%)

• Low SWR (typically less than 1.30)

• Test data available

• 0 to 11 dB in 1 dB steps

• Maximum switching time of 20 ms

Product Specifications

Electrical Specifications
Frequency Range:			dc to 18 GHz
Incremental Attenuation:		0 to 11 dB
					1 dB steps
SWR Maximum (50 ohm nominal)	
	dc to 8 GHz:			1.5
	dc to 12.4 GHz:			1.6
	dc to 18 GHz:			1.9
Insertion Loss (0 dB setting):		0.6 dB + 0.09 dB/Ghz
Attenuation Accuracy	
	dc to 12.4 GHz
		±0.3 dB:		1 to 2 dB
		±0.4 dB:		3 to 4 dB
		±0.5 dB:		5 to 6 dB
		±0.6 dB:		7 to 10 dB
		±0.7 dB:		11 dB
	dc to 18 GHz
		±0.7 dB:		1 to 5 dB
		±0.8 dB:		6 to 9 dB
		±0.9 dB:		10 to 11 dB
Power Rating, Minimum Life:		1W average, 100W peak, 
					10 µs max, 
					5 million cycles per section
Solenoid Voltage, Speed, and Power: 	20 to 30V, <20 ms, 2.7W


Option 890 Calibration Data Specifications
Frequency List (MHz):			100, 300, 500, 700, 900, 1000, 
					1250, 1500, 1750, 2000, 2500, 
					3000, 3500, 4000; plus every 
					500 MHz to 16000 (plus 12400 MHz), 
					every 250 MHz from 16000 to 18000

Product Ordering Information

Each order must include basic model number, suffix letter, and connector option.

HP 8494H	Programmable Step Attenuator
   Opt 890	Calibration Data

Connector options
   Opt 001	N (f)
   Opt 002	SMA (f)
   Opt 003	APC-7

To help you make the right instrument choices

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Page Updated: Thursday June 19 16:18:04 UTC 1997