TA430 datasheet(32/42 Pages) PICO

32 / 42 page

PicoVNA® 100 Series vector network analyzers

Mixer measurements utility (PicoVNA 108 only)

External local oscillator and external power sensor support

A wide range of mixer performance and port isolation measurements can be carried out, including

swept RF or IF with a choice of low or high side LO. A PicoSource AS108 or a third-party signal

source is used as the external LO source, and this operates under the control of the PicoVNA 3 PC

application. The software also supports a third-party USB power sensor in the characterization of

port power.

Supported USB-controlled signal sources

Supported USB-controlled power sensors

PicoSource® AS108

Agilent/Keysight U8480, U2000

MiniCircuits SSG-15G, SSG-6000, SSG-6001

Rohde & Schwarz NRP8S, NRP8SN, NRP18S

TTi TGR 6000

Contact Pico if you’d like us to consider support for your choice of external USB signal generator or

power sensor.

VSWR correction

Mixers can be difficult to measure

accurately particularly when mixer

port match is relatively poor. The

PicoVNA 108 mixer measurement

calibration includes the option of

VSWR error correction. This reduces

the conversion loss measurement

uncertainty as typically shown in the

diagram.

Mixer compression

Conversion loss change as a function of the input RF level is easily determined. This can be

referenced either to the port power uncertainty of the PicoVNA, or you can use a third-party power

sensor (above) to pre-characterize the PicoVNA 108 port power for enhanced accuracy. The 0.1 and

1 dB compression points are displayed on completion.

TA430 датащи(PDF) 32 Page - Pico Technology Ltd.