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68 Chapter 5
Options and Accessories
Accessories
HP/Agilent 11974 Series Preselected Millimeter Mixers
11974 Series preselected millimeter mixers are available to extend the frequency range of
analyzers with Option AYZ (external mixing) up to 75 GHz. Preselection reduces mixer
overload from broadband signals, reduces radiation of local oscillator harmonics back to
the device under test, and reduces the level of image and multiple responses displayed.
The following four models are available:
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.
Static Safe Accessories
9300-0797 3M static control mat 0.6 m × 1.2 m (2 ft. × 4 ft.) with a 4.6 cm (15 ft.)
ground wire. Does not include wrist strap or cord
9300-1367 Wrist-strap, color black, stainless steel. Four adjustable links and a 7 mm
post-type connection.
9300-0980 Wrist-strap cord 1.5 m (5 ft.)
9300-1308 ESD heel-strap (reusable 6 to 12 months)
Table 5-2.
HP/Agilent Model
Number
Frequency Range
11974A 26.5 to 40.0 GHz
11974Q 33.0 to 50.0 GHz
11974U 40.0 to 60.0 GHz
11974V 50.0 to 75.0 GHz