PicoVNA® 100 Series vector network analyzers

Check standards

We offer two economical check standards that can be used to validate the accuracy of a network analysis test setup and its calibration before and during or after measurements

are made. Akin to the Beatty line, each check standard is a short length of mismatched line (75 mm of 25 Ω) with a predictable, smooth and stable mismatch and transmission

characteristic that spans the frequency range of the PicoVNAs. These devices validate system measurement accuracy in the presence of high and varying mismatch and thus

present a demanding validation on which to base confidence in a setup.

A comparison utility is provided in the PicoVNA 3 software (described on later pages) to evaluate the comparison against a combination of specified measurement uncertainties

for the device, test leads and instrument. Each check standard is supplied with Touchstone measurement data on USB memory stick. The data is traceable via PC3.5 standards to

national standards. The supplied Touchstone measurement data is compatible with, and can be used to manually validate a measurement of, any manufacturer’s VNA.

Two check standards are available: insertable SMA(m-f) and noninsertable SMA(f-f).

Order code

Name

Type

Ports/

Standards

Interface/

Impedance

Characterization

Supported calibration modes

TA430

CHK-INS-MF

Insertable with

a male and a

female port

Check

standard

2 ports/

25 Ω low-

impedance line

with transition

to 50 Ω ports

SMA(m)/50 Ω

Full S-parameter 300 kHz to 8.5 GHz.

Serial-numbered Touchstone file

provided on USB memory stick

Insertable 12-term calibration, all

S-parameters

TA431

CHK-NON-F

Noninsertable

with female ports

SMA(f)/50 Ω

Non-insertable, known and

unknown through calibrations, all

S-parameters

Please see Software description and Specifications for further details.

S-parameter and time-domain plots for TA431 over an 8.5 GHz span.

Minor but within-specification S

21 measurement errors present.

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