MicroRF Link can be used to debug background noise or power supply interference problems. It is the 500 series equivalent to RAIL on the 700 series.
Once the MicroRF firmware is loaded to a 500 series device, the serial interface can be used to issue commands.
Some example use cases are:
1. Use the rxsweep command to do a spectrum analysis (refer to table 3 in the above document to set the correct frequencies). For example for EU frequencies, set start freq to 86800kHz, stop frequency to 87000kHz, and bandwidth to >1000kHz.
:rxsweep Enter start freq? 868000kHz Enter stop freq? 870000kHz Enter step size? 1000
2. Receive/demod frames (like a crude Zniffer)
:f Enter freq? 869850kHz (h)ighside/(l)owside? h Baudrate 40k(4), 9.6k(9), 40k & 9.6k(b), 100k(1)?1 :rx a
3. Block a freq using the transmit carrier command
: tx c
Issue: Cases have been reported where new UZB7s are not connecting to the PC Controller when using Windows 10. If energy saving mode is active in Windows 10 then power to the 700 UZB sticks is cut after a short while (when no process is connected to the Serial API). If the UZB stick is accessed again (e.g. through PC Controller) Windows 10 will give it power but for some reason the stick wont boot correctly and is not accessible anymore.
A workaround for this issue is thereby provided until a fix has been released.
How to disable the power save option:
Open the Device Manager -> Ports (COM & LPT) -> Silicon Labs CP210x USB to UART Bridge (COMxx) -> Properties -> Power Management -> Uncheck the box "Allow the computer to turn off ..."
Once the power save option is disabled the UZB sticks will not go to sleep anymore and continue working. However, they still have to be re-plugged once after booting the computer.