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Accessories Available
A number of accessories are available from Hewlett-Packard to help
you configure your HP 8568B for your specific needs.
The HP 8447D preamplifier provides a
Preamplifiers
minimum of 26 dB gain from 100 kHz to
low-level signals.
The HP 11940A and HP 11941A Close-Field
Close-Field Probes
Probes are small, hand-held, electromagnetic-
field sensors. The probes can be used to
make repeatable, absolute, magnetic-field
measurements. When attached to a signal
source, the probes can be used to generate a
localized magnetic field for electromagnetic
interference (EMI) susceptibility testing. The
HP 11941A is specified over a frequency range
of 9 kHz to 30 MHz. The HP 11940A operates
from 30 MHz to 1 GHz.
75 to 50 ohm
The minimum-loss pad (dc - 2.0 GHz), HP part
number 08566-60122, is a low-VSWR resistive
Minimum-Loss Pad
matching device for making measurements in
The HP 11867A Limiter protects the
Microwave Limiters
instrument input circuits from damage due
to high power levels. It operates over a
frequency range of dc to 1.8 GHz and is rated
The HP 11693A Limiter is similar to the
HP 11863A but has a frequency range of 0.4
to 12.4 GHz and is rated 1 W continuous and
75 W peak power.
Use HP 10833A/B/G/D HP-IB cables.
HP-IB Cable
The HP 8568B is fully HP-IB programmable.
Controllers
The preferred controllers are HP 9000
Series 300 computers. Consult your local
Hewlett-Packard service representative for
other recommended controllers and available
software.
HP 85650A Quasi-Peak The HP 85650A adds to the spectrum
analyzer the resolution bandwidth filters and
Adapter
quasi-peak detection capability specified by
CISPR. Together the quasi-peak adapter and
the spectrum analyzer provide many of the
elements needed for an EM1 receiver system.
1.3 GHz to enhance measurements of very
10 W continuous and 100 W peak power.
General Information l-5
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