Test Results
The following table shows the results from the three test locations. Nearly all the check-in messages were successfully sent at all the test points.
Under the open canopy, all check-in and HELP messages were sent successfully (table 1). Even when tracking messages were sent with the SPOT device positioned vertically, 80 percent were sent successfully .
Under the medium canopy, 89 percent of the check-in messages were sent successfully, 46 percent (6 of 13) of the HELP messages were sent successfully, as were 81 percent of the tracking messages sent with the device positioned horizontally and 54 percent of the tracking messages sent with the device positioned vertically.
Under heavy canopy, 91 percent of the check-in messages were sent successfully, as were 31 percent of the HELP messages and half of the tracking messages sent with the device positioned horizontally. Only 14 percent of the tracking messages sent with the device positioned vertically were sent successfully.
| Test | Percent of Messages Sent Successfully | ||
|---|---|---|---|
Open Canopy |
Medium Canopy (Lubrecht) |
Heavy Canopy (Powell) |
|
| Check-in Feature | 100 (9 of 9) | 89 (8 of 9) | 91 (10 of 11) |
| HELP Feature | 100 (13 of 13) | 46 (6 of 13) | 31 (4 of 13) |
| 24-Hour Tracking (Horizontal) | 97 (140 of 145) | 81 (110 of 136) | 49 (71 of 145) |
| 24-Hour Tracking (Vertical) | 80 (115 of 144) | 54 (78 of 145) | 14 (21 of 145) |
