MC60 manual read GPS jamming stat

hi
in MC60 after GPS power on & enable jamming detection:
AT+QGNSSCMD=0,“$PMTK838,12C"
AT+QGNSSCMD=0,"$PQJAM,W,1,1
3C”
module send jamming state in URC message. (URC = Unsolicited Result Code)

but i need read jamming with manual.
please help for find MC60 at-command for manual query GPS jamming state.

thanks

in document:
MC60&MC90_GNSS_Protocol_Specification_V1.2 →
in History: 1.2 2018-09-19 Simon HU →
Updated the description of parameter , example, and added notes for AT+QGNSSRD. (Chapter 3.2):
after enable gps jamming detection any time need to check jamming state can use of “AT+QGNSSRD?” and in end of NMEA data add:
$PMTKSPF,15A => No jamming, healthy status (status 1)
or
$PMTKSPF,2
59 => Warning status (status 2)
or
$PMTKSPF,3*58 => Critical status (status 3)