RX testing

The command enables RF receiver with the given parameters. It also measures antenna power with a time domain power meter and returns the measurement result.

The command parameter and its value are the following:

<test>
0 – RX

RX ON

<operation>
1 – ON

RX ON has a total of four parameters:

<param0>
3GPP band number.
<param1>
Frequency 100 kHz.

Valid range 6000–22000 (corresponds to 600.0 MHz–2200.0 MHz). Note that if CW is used, an offset of about 45 kHz for NB1 and 300 kHz for M1 is recommended.

<param2>
RX signal power at antenna [dBm].

Valid range from −128 to −25].

<param3>
System mode.

Valid range 0–1. NB1 (0) or M1 (1).

Response syntax when <operation> is ON:

%XRFTEST: <antenna_power>

The response value is the following:

<antenna_power>
Measured power at antenna, in q8 dBm. q8 means that dividing the result by 28 = 256 gives dBm.

The example command enables the RF receiver for Band 1, 2140.0 MHz, 65 dBm, NB1 mode:

%XRFTEST=0,1,1,21400,−65,0
%XRFTEST: -17002
OK
Note: −17002/256 = −66.4 dBm

RX OFF

<operation>
0 – OFF

The example command disables the RF receiver:

%XRFTEST=0,0
OK