Description
CHK-NON_F, Non-Insertable Check Standard SMA (f-f)
The TA431 CHK-NON-F is a check standard for use with a non-insertable DUT, with a female to female port 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 O) with a predictable, smooth and stable mismatch and transmission characteristic that spans the frequency range of the PicoVNA 106. 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 2 software 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. 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.
|
Port connectors |
Parameter |
Min |
Max |
Impedance (Ohm) |
Bandwidth (GHz) |
|---|---|---|---|---|---|
| Port 1: SMA female | Return loss | < -30 dB | > -6 dB | 25 | 6 |
| Port 2: SMA female | Return loss | > -0.2 dB | < -1.9 dB | 25 | 6 |
Supports all S-parameters and non-insertable, known and unknown through calibration modes.
Technical data:
| Device |
Bandwidth |
Return loss |
Insertion loss |
Comment |
|---|---|---|---|---|
| TA431 | 0.3 to 6000 MHz | < -30 dB to > -6 dB | > -0.2 dB to < -1.9 dB | Formed by 75 mm of 25 Ohm mismatched line |
| Reference uncertainty |
Level and frequency range |
Reflection mag / phase |
Transmission mag / phase |
||
|---|---|---|---|---|---|
| -15 dB to 0 dB | < 2 MHz | 0.99 dB / 11.3° | 0 dB to +6 dB |
0.57 dB / 8.5° | |
| > 2 MHz | 0.71 dB / 5.7° | 0.28 dB / 2.8° | |||
| -25 dB to -15 dB | < 2 MHz | 1.13 dB / 14.1° | -40 dB to 0 dB |
0.42 dB / 2.8° | |
| > 2 MHz | 1.41 dB / 8.5° | 0.14 dB / 1.4° | |||
| -30 dB to -25 dB |
< 2 MHz | 4.24 dB / 28.3° | -60 dB to -40 dB |
0.71 dB / 11.3° | |
| < 2 MHz | 3.54 dB / 21.2° | 0.42 dB / 5.7° | |||
| -80 dB to -60 dB |
2.83 dB / 21.2° | ||||
| 2.12 dB / 17.0° | |||||
