I ran 3 test with good results using 10 and 15 degree sv mask
60% - 80% open sky with 20% horizon view, 50 year old trees on my lot and all adjacent 0.2 acres lots, not an open field.
10 degree mask took 5 minutes to fix. then float - fix for 2 minuted until a solid fix for 7 minutes. after that I lost the fix and position was only about 1 -2 feet accurate for the next 20 minutes.
this 1st test held 16 -17 sv’s
15 deg mask took 4 minutes to first fix then float fix for 5 minutes at an accuracy of about 0.5 feet, at 10 minutes it fixed and held a solid fix for 45 minutes.
I also set the s&r mask to 30
this 2nd test had 15 -16 sv’s
test 3 same as test 2 I got a 2 minute fix, it stayed fixed
Yes! the Here+ works just like a survey grade L1 receiver should work.