About AFC command

[Thomas_Ji]

Hi 

We want to run the AT command as the following, the response is always ERROR.

signal generator: CW,  freq=param1-120KHz=1804.88MHz,   power: -100dbm

AT%XRFTEST=4,1,3,18050,-100

and Run the GPS SNR command AT%XRFTEST=2,1,-84,0, the response is OK.

signal generator: CW,  freq=param2+330KHz=1575.75MHz,  power: -100dbm

What is the reason?

Best Regards

Thomas

[Thomas_Ji]

the version of the modem is 1.3.1, the application is the SLM in ncs1.8.0 and the test board is the nRF9160 DK 1.0.1

[Håkon Alseth]

Hi,

 

When issuing XRFTEST AT commands, are you certain that the modem is off or in flight mode (AT+CFUN=4 or CFUN=0)?

 

Kind regards,

Håkon

[Thomas_Ji]

Hi

I run the AT+CFUN=4 or AT+CFUN=0 first, the response is OK, and than run the AFC command, the response is ERROR also.

Best Regards

Thomas

[Håkon Alseth]

Hi Thomas,

 

I tested this on my end on two projects, both successful.

  

Sample output from at_client:

*** Booting Zephyr OS build v2.7.99-ncs1-rc1  ***
The AT host sample started
AT%XRFTEST=4,1,3,18050,-100
%XRFTEST: 8005,4761
OK

 

Sample output from SLM:

Ready
AT%XRFTEST=4,1,3,18050,-100

%XRFTEST: 8099,4817
OK

 

Kind regards,

Håkon

[Thomas_Ji]

Hi

Could you supply your SLM application hex file, and we can test in the DK.

Best Regards

Thomas