How do I resolve "Bad GPS Signal Health"?

Hello
I’m using 2 CUAV C-RTK 9P as a DUAL GPS.
However, the message “Bad GPS Signal Health” is displayed.
When I checked the log, GPA2 is missing, and GPA.Delta is 1hz.
So I modified the parameters to the best of my knowledge.
GPS_RATE_MS 200
GPS_RATE_MS2 200

SR3_EXTRA3 5
SR3_PARAMS 5
SR3_POSITION 5
SR3_RAW_SENS 5

SR4_EXTRA3 5
SR4_PARAMS 5
SR4_POSITION 5
SR4_RAW_SENS 5

GPS_GNSS_MODE 65
GPS_GNSS_MODE2 65

But still get the message. Is there anything else to modify here?
I look forward to your help. Thank you.

0422.param (17.3 KB)
2022-04-20 11-29-03.bin (524.5KB)

Also try changing GPS_GNSS_MODE and GPS_GNSS_MODE2 to see what works best in your region.
A value of 65 was common, but may not be good at the moment.