How to Test Angle of Arrival of UWB Devices Validating ultra-wideband (UWB) devices requires generating and analyzing wideband signals to confirm their transmit and receive capabilities. Learn how to perform AoA measurements and validate that the DUT reports the correct direction of the signal source...
A method of testing a DUT via a wireless signal medium to enable the final function test of a device to be tested (DUT) which is a fully assembled radio frequency (RF) data packet signal transceiver without requiring a wired signal connection. A wireless (OTA) test signal that is ...
This article analyzes the effects of phase noise, particularly from DC power, to demonstrate the importance of choosing the proper power solution for an RF signal chain design.
Narrowband Internet of Things (NB-IoT) devices and systems require rigorous testing to ensure devices' reliability and avoid unexpected failures. Learn how to perform the conformance test of an NB-IoT device using a comprehensive suite of test cases.
RF interference is an unwanted “signal” that occurs at the same time and frequency as a data signal. Interference to wireless networks may come from a variety of sources, such as a microwave oven (MWO), cordless phone, or Bluetooth device. Most RF interference occurs in the 2.4 GHz band...
Max time offset is used to prevent scheduling of packets outside the set time. Due to clock drifts, scheduling packets too far from the sync reference can cause inaccurate scheduling, which can cause signal detect timeout or SOF timeout. These timeouts will be discussed more in the ...
and zero to two bars indicate that the Wi-Fi signal strength is poor. You can also run therf-pingcommand to check the strength of radio signals received by a STA. If the value ofRSSIis lower than –65 dBm, the radio signals received by the STA are weak. If the strength of s...
RF cross switches In many applications, antenna tuning is a necessary but not sufficient condition to ensure optimal performance. In those cases, more than one antenna may be needed. An RF cross switch can be added to the signal chain to enable the selection of the antenna that provides the...
and zero to two bars indicate that the Wi-Fi signal strength is poor. You can also run therf-pingcommand to check the strength of radio signals received by a STA. If the value ofRSSIis lower than –65 dBm, the radio signals received by the STA are weak. If the strength of ...
• Connect the RF Output of the signal generator to the LO Input (H) port of the system downconverter. See Figure 8. • When doing Calibration, refer to Figure 7b to connect the noise source to the system downconverter. • When doing Measurement, refer to Figure 7a to insert DUT ...