Well hopefully it gets quicker for you.
What worked well for me was:
,--------------.
| GNSS |
| antenna |
--------g--r--o--u--n--d----p--l--a--n--e--------
| |
| RFD900 |===========: stubby antenna parallel to ground plane
| radio |
| |==\
\____________________/ ||
||
||
||
||
||
||
||
--
flexible antenna (perpendicular and underneath the ground plane)