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  • Name: WT-328 Wireless connection tester
  • No: 0001
It is a production test solution for next-generation WLAN protocol 802.11ax!
 
■   Provides 240M sample rate option (analysis bandwidth 1 BOM).Based on the test capabilities of the original WT-20X series, the 802.11 ac 160M/80M+80M service is supported
 
■   WT-328 has two independent test units. A single machine supports 2x2 True MIMO and MU-MIMO test .Stacking multiple machines supports: 8x8 True MIMO
 
■   Supports the industry latest 802.11 ax standard, with typical residual EVM of 160M bandwidth reaching -48dB.The testing satisfies the optimal performance of the DUT, with higher test accuracy and is conducive to improving the straight-through rate
 
■   With individual high-power output port (TX-AUX) and supports +10dBm output, providing high power to verify the maximum receive level, in order to meet the requirement of the ultimate performance test in the R&D stage 求。

           The WT-328 is a dedicated instrument for the production testing of high-end WLAN products. It supports RF signal testing in the 400M-6G frequency band and provides a reliable and efficient RF test solution for the new generation of 802.11 ac Wave2/802.11 ax WLAN technology. With two independent test units, the single box supports 2x2 True MIMO test and MU-MIMO. The new added TX-AUX port supports high power output to meet the requirement of the ultimate performance test in R&D stage. With the mature 8-port parallel test technology and high-efficiency operating characteristics, totally fulfill the requirements of the production line. 

Extensible Business:

     ■ WLAN(802.11 a/b/g/n/p/ac/ax);
     ■ Bluetooth(1.0/2.0/3.0/4.0/4.1/4.2/5.0)/BLE;
     ■ MIMO/MU-MIMO;
     ■ IoT:NB-IoT/e-MTC/LTE-M/ZigBee/Z-Wave/LoRa/802.11ah…;
     ■ Navigation:GPS/BDS/GLONASS;
     ■ DECT(ETSI EN 300 176-1);
     ■ LTE/WCDMA/GSM……;
   

General Technical
Input/Output frequency range 400M to 6000 MHz
IF bandwidth 180  MHz
Input power range +30 dBm peak (+25 dBm average)
Output power range(CW) (RF-A1 to RF-B4) 0 to -100 dBm
Output power range(CW) (TX-AUX) +10 to -90 dBm
Input power accuracy Specification: ±0.5 dB (+25 to -40 dBm)
Typical: ±0.3 dB (+25 to -40 dBm)
Output power accuracy(RF-A1 to RF-B4) Specification: ±0.75 dB ( 0 to -90 dBm)
±1.50 dB ( -90 to -100 dBm)
Typical: ±0.50 dB ( 0 to -90 dBm)
±1.00 dB ( -90 to -100 dBm)
Output power accuracy (TX-AUX) Specification: ±0.75 dB ( +10 to -80 dBm)
±1.50 dB ( -80 to -90 dBm)
Typical: ±0.50 dB ( +10 to -80 dBm)
±1.00 dB ( -80 to -90 dBm)
Input/Output return Specification: >13 dB
Typical: 15 dB
Sampling data rate 30, 60, 120, 240 MHz
Spectral flatness Specification: ≤±0.75 dB ( ±80 MHz)
Typical: ±0.5 dB ( ±80 MHz)
Port to Port Isolation Specification: >90 dB
Typical: 110 dB
WLAN (802.11a/b/g/n/p/ac/ax)
EVM Residual VSA EVM
(full packet channel estimation):
-48 dB for 20 Mtypical: -50 dB
-48 dB for 40 Mtypical: -50 dB
-46 dB for 80 Mtypical: -48 dB
-45 dB for 160 Mtypical: -48 dB
Residual VSG EVM:
(full packet channel estimation):
-48 dB for 20 Mtypical: -50 dB
-48 dB for 40 Mtypical: -50 dB
-46 dB for 80 Mtypical: -48 dB
-45 dB for 160 Mtypical: -48 dB
Peak power VSA power accuracy: ±0.5 dB (+20 to -45 dBm)
RMS power
Frequency error VSA measurement error: ≤±0.2 ppm calibrated
RMS phase noise VSA integrated phase noise: <0.3 degrees (100 Hz to 1 MHz)
Spectral mask Spectral mask view: ±90 MHz
Spectral flatness VSA flatness over 160 MHz    BW: ±0.75 dB
CCDF (complementary cumulative distribution function) Probability of peak signal power being greater than a given power level versus peak-to-average power ratio (dB)
Bluetooth®(1.0/2.0/2.1/3.0/4.0/4.1/4.2/5.0)BLE
TX output power VSA power accuracy: ±0.5 dB (+20 to -45 dBm)
TX output spectrum
Modulation characteristics (For EVM better than -25 dB) VSA measurement error:≤± 0.2 ppm calibrated
Carrier frequency tolerance
Carrier frequency drift
RMS EVM (EDR) Residual VSA EVM: ≤-35 dB (+20 to -30 dBm) Residual VSG EVM: ≤-35 dB (-10 to -70 dBm)
Peak EVM (EDR)


 

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