SWRA603A March 2018 – May 2019 CC1100 , CC1101 , CC110L , CC1120 , CC1121 , CC1125 , CC113L , CC1150 , CC115L , CC1175 , CC1190 , CC1200 , CC1201 , CC1310 , CC1312PSIP , CC1312R , CC1314R10 , CC1350 , CC1352R , CC2530 , CC2531 , CC2538 , CC2540 , CC2541 , CC2590 , CC2591 , CC2592 , CC2640 , CC2642R , CC2642R-Q1 , CC2650 , CC2650MODA , CC2652R , CC2652R7 , CC2652RB , CC2652RSIP
In a RF system having the best possible range is important in many cases. There are many factors that can cause poor range. This application report provides a step-by-step guide on which parts of the design could cause shorter range than desired.
Term | Definition |
---|---|
Conducted | The DUT is connected via cable directly to the instrument. |
Radiated | Over the air |
CW | Carrier Wave (tone) |
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If the range is not meeting the expected distance based on the results in Section 1, the root cause needs to be determined:
Poor range could be caused by one or more of the following factors:
The measurement methods depend on what type of equipment you have available.
It is highly recommend for the measurements to use SmartRF™ Studio to control the DUT. If that is not possible, use unmodified settings and code from the software or unmodified code examples before testing with the settings that are used for the product. This is to ensure that the testing of the hardware is done with good known software.
It is difficult to get an accurate number using this method since the exact values of output power and attenuation are normally not known.