For example: Agilent E4440A or Anritsu 68369
Keysight / Agilent
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Keysight / Agilent 70301A
2.7 GHz to 18 GHz Microwave Tracking Generator

Category: Generators (other)
Keysight / Agilent 70320A
RF Signal Generator Module, 252 Hz - 1030 MHz

Category: Plug In / Part / Component / Module
Keysight / Agilent 70322A
100 kHz to 4.2 GHz Synthesized Signal Generator Module

Category: Plug In / Part / Component / Module
Keysight / Agilent 70325A
1.03 GHz Frequency Agile Signal Generator

Category: Function/Arbitrary Waveform Generators
Keysight / Agilent 70330A
300MHz PULSE GENERATOR, MMS MODULE (5/8)

Category: Plug In / Part / Component / Module
Keysight / Agilent 70332A
100MHz MULTIPLE CLOCK GENERATOR, MMS

Category: Signal Gen/Synthesizers/Sweepers
Keysight / Agilent 70341A
Frequency Extension Module,10 MHz to 1 GHz

Category: Plug In / Part / Component / Module
Keysight / Agilent 70429A
HP (NOT AGILENT) PHASE NOISE TEST ACCY

Category: Noise [Source/Figure Meter]
Keysight / Agilent 70590A
No-parts shell module for 70000 MMS

Category: Plug In / Part / Component / Module
Keysight / Agilent 70612-60003
Switch Assembly 3-port 24V

Category: Plug In / Part / Component / Module
Keysight / Agilent 70612-60006
Coaxial switch ser. 0139

Category: Plug In / Part / Component / Module
Keysight / Agilent 70612C
Interface Module, dc to 26.5 GHz, 1x6 switch

Category: Miscellenious / Other
Keysight / Agilent 70700A
Digitizer Rate 20 Msamples/sec Plugin for 70000 series

Category: Plug In / Part / Component / Module
Keysight / Agilent 70810A
1200 to 1600 nm Lightwave Module

Category: Plug In / Part / Component / Module
Keysight / Agilent 70841-60144
Clock Drive Amplifier Module

Category: Amplifiers / Parts / Components
Keysight / Agilent 70841A
3 Gbit/s Pattern Generator Module

Category: Plug In / Part / Component / Module
Keysight / Agilent 70842A
3 Gbit/s Error Detector Module

Category: Plug In / Part / Component / Module
Keysight / Agilent 70900A
Local Oscillator control module for the modular spectrum analyzers

Category: Spectrum Analyzers
Keysight / Agilent 70900B
Local Oscillator control module for the modular spectrum analyzers

Category: Spectrum Analyzers
Keysight / Agilent 70904A
RF Section, 100 Hz to 2.9 GHz

Category: Plug In / Part / Component / Module
Keysight / Agilent 70905A
RF Section, 50 kHz to 22 GHz

Category: Plug In / Part / Component / Module
Keysight / Agilent 70905B
MODULE SPECTRUM ANALYZER 22GHz RF

Category: Plug In / Part / Component / Module
Keysight / Agilent 70906A
RF Section Plug In, 50 KHz - 26.5 GHz

Category: Plug In / Part / Component / Module
Keysight / Agilent 70907A
External Mixer Interface Module

Category: Plug In / Part / Component / Module
Keysight / Agilent 70910A
Wide Bandwidth RF Section, 100 Hz to 26.5 GHz

Category: Spectrum Analyzers
Keysight / Agilent 70912A
10 TO 1500 MHz Downconverter Module

Category: Plug In / Part / Component / Module
Keysight / Agilent 70912B
10 to 2000 mHz Downconverter Module

Category: Plug In / Part / Component / Module
Keysight / Agilent 70950A
Optical Spectrum Analyzer Module

Category: Plug In / Part / Component / Module
Keysight / Agilent 70950B
OPTICAL SPECTRUM ANALYZER MODULE RANGE 600 - 1700 nm

Category: Optical Spectrum Analyzers
Keysight / Agilent 70951A
Optical Spectrum Analyzer Plug-In

Category: Plug In / Part / Component / Module
Keysight / Agilent 70952B
Agilent 70952B Optical Spectrum Analyzer Module

Category: Optical Spectrum Analyzers
Keysight / Agilent 71100C
RF Spectrum Analyzer, 100Hz to 2.9GHz (Modular)

Category: Spectrum Analyzers