74 Chapter 5
Options and Accessories
Accessories
These probes are designed to measure magnetic field radiation from surface currents, slots, and cables.
The probes are part of a close-field probe set (11945A). The set also includes cables and adapters.
External Keyboard
You may use any IBM AT compatible keyboard with a mini DIN connector. Screen titles and filenames
can be entered with the external keyboard.
GPIB Cable
For use with Option A4H (standard). The Agilent 10833 Series GPIB cables interconnect GPIB devices
and are available in four different lengths. GPIB cables are used to connect controllers to a spectrum
analyzer.
Parallel Interface Cable
For use with Option A4H and 1AX. A 36-pin to 25-pin male-to-male 2 meter cable can be used to
connect supported printers to an analyzer. This cable must be IEEE-1284 compliant.
Printer
For use with Option A4H or 1AX. The DeskJet personal printers provide black and white or color
printing for another form of permanent records of your test results. The HP LaserJet series printers are
also compatible. The printers connect to the parallel interface installed on the analyzer with either Option
A4H (standard) or 1AX.
RF and Transient Limiters
The Agilent 11867A and 11693A RF Limiters protect the analyzer input circuits from damage due to
high power levels. The 11867A operates over a frequency range of dc to 1800 MHz and begins reflecting
signal levels over 1 mW up to 10 W average power and 100 watts peak power. The 11693A microwave
limiter (0.1 to 12.4 GHz, usable to 18 GHz) guards against input signals over 1 milliwatt up to 1 watt
average power and 10 watts peak power.
The Agilent 11947A Transient Limiter protects the analyzer input circuits from damage due to signal
transients. It specifically is needed for use with a line impedance stabilization network (LISN). It
operates over a frequency range of 9 kHz to 200 MHz, with 10 dB of insertion loss.
RF Bridges
The Agilent 86205A 50 Ω RF bridge and 86207A 75 Ω RF bridge can be used to make reflection
measurements using an analyzer with tracking generator Option 1DN or 1DQ or with an external signal
generator. These external directional bridges offer high directivity and excellent port match. The 86205A
operates over a frequency range of 300 kHz to 6 GHz. The 86207A operates over a frequency range of
300 kHz to 3 GHz.
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