50 Ohm Load; 50 Ohm/75 Ohm Minimum Loss Pad; 75 Ohm Matching Transformer; Ac Probe - Keysight N9000A Service Manual

Overview
Signal Analyzer Accessories

50 Ohm Load

The Agilent 909 series loads come in several models and options providing a
variety of frequency ranges and VSWRs. Also, they are available in either 50 ohm
or 75 Ohm. Some examples include the:
909A: DC to 18 GHz
909C: DC to 2 GHz
909D: DC to 26.5 GHz

50 Ohm/75 Ohm Minimum Loss Pad

The Agilent 11852B is a low VSWR minimum loss pad that allows you to make
measurements on 75 Ohm devices using an analyzer with a 50 Ohm input. It is
effective over a frequency range of dc to 2 GHz.

75 Ohm Matching Transformer

The Agilent 11694A allows you to make measurements in 75 Ohm systems using
an analyzer with a 50 Ohm input. It is effective over a frequency range of 3 to
500 MHz.

AC Probe

The Agilent 85024A high frequency probe performs in-circuit measurements
without adversely loading the circuit under test. The probe has an input
capacitance of 0.7 pF shunted by 1 MΩ of resistance and operates over a
frequency range of 300 kHz to 3 GHz. High probe sensitivity and low distortion
levels allow measurements to be made while taking advantage of the full dynamic
range of the spectrum analyzer.

AC Probe (Low Frequency)

The Agilent 41800A low frequency probe has a low input capacitance and a
frequency range of 5 Hz to 500 MHz.

Broadband Preamplifiers and Power Amplifiers

Preamplifiers and power amplifiers can be used with your spectrum analyzer to
enhance measurements of very low-level signals.
• The Agilent 8447D preamplifier provides a minimum of 25 dB gain from
100 kHz to 1.3 GHz.
• The Agilent 87405A preamplifier provides a minimum of 22 dB gain from
10 MHz to 3 GHz. (Power is supplied by the probe power output of the
analyzer.)
• The Agilent 83006A preamplifier provides a minimum of 26 dB gain from
10 MHz to 26.5 GHz.
20 Chapter 1