For example: Agilent E4440A or Anritsu 68369
Keysight / Agilent
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Keysight / Agilent 37908A
Option 012 Software for the GSM/GPRS Signaling Advisor

Category: Accessory
Keysight / Agilent 41420-61601
HP Agilent 41420-61601 Quadrax Cable, 3 Meters for use with 4142B

Category: RF Cables
Keysight / Agilent 41501B
Pulse Generator and Expander Unit for the 4155C/4156C

Category: Generators (other)
Keysight / Agilent 4155C
Agilent 4155C Semiconductor Parameter Analyzer

Category: Semiconductor Equipment
Keysight / Agilent 4156C
4156C Precision Semiconductor Parameter Analyzer

Category: Semiconductor Equipment
Keysight / Agilent 4192A
LF Impedance Analyzer, 5 Hz to 13 MHz

Category: Impedance / Gain Phase Analyzers
Keysight / Agilent 41941B
Impedance Probe Kit

Category: Probes (Scope, Meters, Logic and Spectrum Analyzers)
Keysight / Agilent 4194A
Agilent 4194A Impedance/Gain-Phase Analyzer

Category: Impedance / Gain Phase Analyzers
Keysight / Agilent 41951A
HP Agilent 41951A RF Impedance Test Kit w/ Accessories

Category: Network Analyzers