The set command controls the RF receiver.
Syntax:
%XRFTEST=<test>,<operation>[,<param0>,<param1>,<param2>,<param3>]
The set command parameters and their defined values are the following:
- <test>
- 0 – RX.
- <operation>
- 1 – ON.
- 0 – OFF.
Note: Always send OFF <operation>
before sending another ON <operation>.
- <param0>
- 3GPP band number. Use 24 for Global Navigation Satellite System (GNSS) reception.
- <param1>
- Frequency 100 kHz.
- Valid range 6000–22000 (corresponds to 600.0 MHz–2200.0 MHz).
-
- <param2>
- RX signal power at the SiP antenna port.
- Valid range from −127 dBm to −25 dBm.
- <param3>
- System mode.
- 0 – NB-IoT.
- 1 – LTE-M.
Response syntax when <operation> is ON:
%XRFTEST: <antenna_power>
The response parameter and its defined value are the following:
- <antenna_power>
- Measured power at the SiP antenna port in q8 dBm. q8 means that dividing the result by
28 = 256 gives dBm.
The following command example enables the RF receiver for Band 1, 2140.0 MHz, −65 dBm,
NB-IoT mode:
AT%XRFTEST=0,1,1,21400,-65,0
%XRFTEST: -17002
OK
Note: −17002/256 = −66.4 dBm
The following command example disables the RF receiver:
AT%XRFTEST=0,0
OK