MC7304 problem with LTE Tx test mode

IoT Modules MC/EM Series
1

Hello Guys,

I am trying to test a MC7304 modem and I just discover that when I try to configure LTE BAND by using AT!DASBAND command, I received “0” as an answer from the modem , this behavior is not normal compared with other testing mode (like wcdma or gsm). For my understanding, answer must be the band itself after you press “enter” twice and not 0 , could you please help me to understand if I am missing something?
Thank you in advance.

WCDMA TX 2100 configuration:

AT+CFUN=1
OK
AT!ENTERCND=“A710”
OK
AT!DAFTMACT
290300

OK
AT!DASBAND=12 <— WCDMA BAND
12 <— MODEM ANSWER

OK
AT!DASCHAN=661
661

OK

LTE TX 2100 configuration:

AT+CFUN=1
OK
AT!ENTERCND=“A710”
OK
AT!DAFTMACT
290300

OK
AT!DASBAND=34 <------ LTE BAND
0 <------ MODEM ANSWER

OK
AT!DALSTXBW=5
OK
AT!DALSRXBW=5
OK
AT!DASCHAN=18300
18176

OK

2

hi,
It is recommended to do a soft reset by giving AT!RESET after AT!DAFTMDEACT to ensure modem exiting FTM mode reliably.
So between two test sequence , be sure to run AT!RESET to reset properly the device after the AT!DAFTMDEACT

thanks,
Alex

3

Hi Alex,

“It is recommended to do a soft reset by giving AT!RESET after AT!DAFTMDEACT to ensure modem exiting FTM mode reliably.
So between two test sequence , be sure to run AT!RESET to reset properly the device after the AT!DAFTMDEACT”

I have the same issue but I with AT!DAFTMACT, as per the original question.

Please share if AT!DAFTMACT is used instead of AT!DAFTMDEACT.

Thank you in advance.