Everything you Need to Know About Measuring 5G Radiation | Air-Met Scientific

DSS or Dynamic Spectrum Sharing is part of the overall mechanism that lets 5G NR and 4G LTE coexist while in the same frequency band. As 4G and 5G operate with the same modulation principle, base stations can use part of its spectrum for the 5G protocol.

This system can be measured as a standard 4G. The fact that a part of the spectrum is used for 5G protocol does not affect the exposure. The Narda SRM-3006 can also measure the 5G part of the DSS. 

TDD (Time Division Duplex) technology was started to be introduced with 4G and is very common with 5G. With TDD, the base station and mobile device transmit on the same frequency but in different timeslots. This allows more efficient adaptation of the frequency bands to the data throughout requirements of uplink or downlink.

No, not for 5G. The same measurement approach and signalization in 4G/LTE is different to 5G. This makes 5G code selective measurement independent of whether TDD of FDD techniques are used. 

An area monitor can continuously measure the actual value of the exposure and output the result as a graph with time and upload it to the internet. A code selective measurement with extrapolation will show the current value and is able to extrapolate to the maximum possible value. The approach that is most acceptable to the residents or the public is the best.

The measurement procedure is the same as for non-beamforming, with the exception that the beamforming factor cannot be assumed to be one but has to be determined correctly. To do this the antenna pattern for the traffic and signalling must be compared for the measurement location. The antenna pattern can be obtained from the operators/manufacturers in diagrams or an Excel table. 

In theory without beamforming, none. Everything can be measured by the SRM-3006 Selective Radiation Meter. For more information on code selective measurement with the SRM-3006, click here. 

Narda will be releasing two antennas that will extend the frequency range of the existing SRM-3006 to FR2. The first release will cover the frequencies from 24-29.5 GHz. They will have different reception characteristics, either that of omnidirectional or a Directional (horn antenna).

Isotropic antennas are not available for FR2, horn antennas are frequently used in this frequency range. An omnidirectional antenna is the best compromise between the standard horn and non-existent isotropic antennas. 

Yes. Frequency selective measurements of SSS can be conducted with an SRM. However, it cannot distinguish between different cells. It does not react to signals emitted by a cell phone and work only if traffic and other emitters transmit at a lower level.