For example: Agilent E4440A or Anritsu 68369
Network Analyzers
A network analyzer is an instrument that measures the network parameters of electrical networks.
Keysight / Agilent E5071B
Agilent E5071B ENA RF Network Analyzer, 300 kHz to 8.5 GHz

Manufacturer: Keysight / Agilent
Keysight / Agilent E5071B-214
Agilent E5071B ENA RF Network Analyzer, 300 kHz to 8.5 GHz

Manufacturer: Keysight / Agilent
Keysight / Agilent E5071B-214-010-016-1E5
Agilent E5071B ENA RF Network Analyzer, 300 kHz to 8.5 GHz

Manufacturer: Keysight / Agilent
Keysight / Agilent E5071B-414
Agilent E5071B ENA RF Network Analyzer, 300 kHz to 8.5 GHz

Manufacturer: Keysight / Agilent
Keysight / Agilent E5071C
ENA Series Network Analyzers, 5 Hz to 20 GHz

Manufacturer: Keysight / Agilent
Keysight / Agilent E5071C-019-1E5-280
ENA Series Network Analyzers, 9 kHz to 8.5 GHz

Manufacturer: Keysight / Agilent
Keysight / Agilent E5071C-485-010-019-UNQ
ENA Series Network Analyzers, 100 kHz to 8.5 GHz

Manufacturer: Keysight / Agilent
Keysight / Agilent E5071CU-790
Measurement Wizard Assistant Software

Manufacturer: Keysight / Agilent
Keysight / Agilent E5072A
Agilent E5072A ENA Series Network Analyzer

Manufacturer: Keysight / Agilent
Keysight / Agilent E7350A 8510XF 2xE83752L
Millimeter Network Analyzer VNA system 2 GHz to 110 GHz

Manufacturer: Keysight / Agilent
Keysight / Agilent E8356A
Agilent E8356A PNA Network Analyzer, 300 kHz to 3 GHz

Manufacturer: Keysight / Agilent
Keysight / Agilent E8357A
2-port 4 receiver S-parameter PNA Vector Network Analyzer, 300 kHz to 6 GHz

Manufacturer: Keysight / Agilent
Keysight / Agilent E8358A
Agilent E8358A PNA Network Analyzer 300kHz to 9GHz 2 PORT

Manufacturer: Keysight / Agilent
Keysight / Agilent E8358A-10-015
Agilent E8358A PNA Network Analyzer 300kHz to 9GHz 2 PORT

Manufacturer: Keysight / Agilent
Keysight / Agilent E8361A
PNA Vector Network Analyzer, 10MHz - 67GHz

Manufacturer: Keysight / Agilent
Keysight / Agilent E8361A-010-014-1CM
PNA NETWORK ANALYZER 10MHz-67GHz

Manufacturer: Keysight / Agilent
Keysight / Agilent E8361C
Agilent E8361C PNA Microwave Network Analyzer

Manufacturer: Keysight / Agilent
Keysight / Agilent E8362A
PNA Series Network Analyzer, 45 MHz to 20 GHz

Manufacturer: Keysight / Agilent
Keysight / Agilent E8362B
Agilent E8362B Microwav Network Anlyzr 10MHz-20Ghz

Manufacturer: Keysight / Agilent
Keysight / Agilent E8362B-010-014-016-022-080-UNL
Agilent E8362B Microwav Network Anlyzr 10MHz-20Ghz

Manufacturer: Keysight / Agilent
Keysight / Agilent E8363B-010-014-080-081-083-UNL-P02
40 GHz Network amalyzer

Manufacturer: Keysight / Agilent
Keysight / Agilent E8364A
Agilent E8364A PNA Series Network Analyzer, 45 MHz to 50 GHz

Manufacturer: Keysight / Agilent
Keysight / Agilent E8364C-010-014-016-080-081-082-084-H11-UNL
PNA Network Analyzer 10MHz to 50GHz, 2 port

Manufacturer: Keysight / Agilent
Keysight / Agilent E8364C-010-014-016-080-081-H11-UNL
PNA Network Analyzer 10MHz to 50GHz, 2 port

Manufacturer: Keysight / Agilent
Keysight / Agilent E8364C-014-016-080-081-H11-UNL
Vector network analyzer PNA 10MHz-50GHz (2 Port)

Manufacturer: Keysight / Agilent
Keysight / Agilent E8802A-014-1E5
RF vector network analyzer 300kHz-6

Manufacturer: Keysight / Agilent
Keysight / Agilent L4445A-ABA
Microwave switch/attenuator driver, requires a 34945EXT

Manufacturer: Keysight / Agilent
Keysight / Agilent L4450A
64-bit LXI digital I/O with memory and counter

Manufacturer: Keysight / Agilent
Keysight / Agilent L4451A
4-Channel LXI isolated D/A converter with waveform memory

Manufacturer: Keysight / Agilent