EZR-LCDK2W-434 Datasheet, PDF (12/16 Pages) Silicon Laboratories – EZRADIO® TWO-WAY LINK DEVELOPMENT KIT USER’S

EZRadio-2WayLink-DK
2.5.2. Single Way (Tx-Rx) Range Test
The range test also can be performed with single way radio communication. In this case, one end of the link needs
to be setup as a transmitter (this will be the originator as described in the bidirectional link) and the other end of the
link needs to be a receiver. The test needs to be started at the transmit side by pressing PB1. The demo runs as
long as the number of transmitted or received packets reaches the predefined number or until the demo is
interrupted by PB1. The user can follow the number of transmitted packets on the LCD screen.
Figure 16. Running PER Test (Tx Mode)
The single way range test demo works the same as the bidirectional range test; however, the number of lost
packets and the packet error rate is defined only at the receive side and is based on the first and last received
packet ID.
Figure 17. Running PER Test (Rx Mode)
2.6. How to Carry the Range Test Out
Connect RFpico boards to the two LCD base boards. Put batteries into the devices and switch the devices on.
Select both devices to be in TRX mode or one of them to be RX and the other to be in TX mode (note that Si4355
base devices can only be receivers). Select the required demo parameters or start the measurements with the
automatically reloaded configuration.
Check if transmitter sends packets and receiver answers as well.
The range test can be performed inside a building if indoor propagation is tested. However, it is advised to perform
the test outside the building, line-of-sight to get the best possible range result. If PER>1%, reset the PER on the
transmitter and try to walk further in the area. Propagation conditions usually improve if the user is further
distanced from a possibly shadowed area.
12
Rev. 0.1