Power sensor calibration factor, linearity, power meter reference output and absolute power accuracy measured on site under LAB Support Ltd.'s A2LA accredited ISO/IEC 17025 scope, by the LAB Support Southeast Asia team.
RF immunity systems for IEC 61000-4-3 and IEC 61000-4-6 record forward power during field calibration and replay it during the test. The power sensor's calibration factor at each frequency and its linearity across the level range therefore define the field applied to the product. Sensors drift with connector wear and thermal cycling, and dual-directional couplers add their own error, so both are calibrated.
| Parameter | Range | Common methods and standards |
|---|---|---|
| RF power, absolute | -120 dBm to +40 dBm, 9 kHz to 40 GHz | Power meter and power sensor, signal analyser |
| Power sensor calibration factor | 9 kHz to 40 GHz | Reference power sensor, power splitter |
| Power sensor linearity | -40 dBm to +20 dBm | Step attenuator, reference sensor |
| Power meter reference output | 0 dBm at 50 MHz | Reference power sensor |
| Directional coupler coupling factor and directivity | 9 kHz to 40 GHz | Network analyser with calibration kit |
| Attenuator insertion loss | 9 kHz to 40 GHz | Network analyser |
The methods and standards shown are the ones most commonly requested. Within each parameter and range listed on the accredited scope, other calibration methods and standard editions can be supported under the flexible-scope provisions of LAB Support's A2LA accreditation. The measurement uncertainty for each parameter is stated on the certificate. Field calibration is included in the scope for every line above.
From our own calibration records. Any instrument within the scope can be calibrated; these are the ones we see most.
Both. The meter's reference output and readout are checked, and the sensor's calibration factor and linearity are measured with a reference sensor, so each can be used with other units afterwards.
Yes. Sensors in Teseq NSG 4070 systems and forward and reverse sensors on amplifier couplers are calibrated in situ, together with the coupler.
Yes. USB and LAN sensors such as the NRP-Z, NRPxxS and U2000 families are calibrated for calibration factor and linearity in the same way as diode and thermal sensors.
Malaysia, Singapore and Vietnam, with Penang as the base. Other locations on request.
We reply within one working day with a quote or a plan.