HP ESA-L1500A, Руководство пользователя и калибровки

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Chapter 6 141
Options and Accessories
Accessories
Accessories
A number of accessories are available from Hewlett-Packard to help you
configure your spectrum analyzer for your specific applications. They
can be ordered through your local HP sales and service office.
RF and Transient Limiters
The HP 11867A and HP 11693A RF limiters protect the spectrum
analyzer input circuits from damage due to high power levels. The
HP 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 HP 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 11947A transient limiter protects the spectrum 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.
50
Ω
/75
Ω
Minimum Loss Pad
The HP 11852B is a low VSWR minimum loss pad that is required for
measurements on 75
Ω
devices using an spectrum analyzer with a 50
Ω
input. It is effective over a frequency range of dc to 2 GHz.
75
Ω
Matching Transformer
The HP 11694A allows you to make measurements in 75
Ω
systems
using a spectrum analyzer with a 50
Ω
input. It is effective over a
frequency range of 3 to 500 MHz.
RF Bridges
The HP 86205A 50
Ω
RF bridge and HP 86207A 75
Ω
RF bridge can be
used to make reflection measurements with the spectrum analyzer with
tracking generator Options 1DN or 1DQ. These external directional
bridges offer high directivity and excellent port match. The HP 86205A
operates over a frequency range of 300 kHz to 6 GHz. The HP 86207A
operates over a frequency range of 300 kHz to 3 GHz.