Performance specifications
Applicable receivers: AX940 | AX940i
NOTE – The Time to First Fix specifications are typical observed values. A cold start is when the receiver has no previous satellite (ephemerides/almanac) or position (approximate position or time) information. A warm start is when the ephemerides and last used position is known.
|
Feature |
Specification |
|
|---|---|---|
|
Time to First Fix (TFF 95% typical) |
Cold start |
<45 seconds |
|
Warm start |
<30 seconds |
|
|
Signal re-acquisition |
<5 seconds |
|
|
Velocity Accuracy 1 |
Horizontal |
0.007 m/sec |
|
Vertical |
0.020 m/sec |
|
|
Maximum Operating Limits 2 |
Velocity |
515 m/sec |
|
Altitude |
18,000 m |
|
|
Acceleration |
11 g |
|
|
RTK initialization time |
Typically <8 seconds |
|
|
RTK initialization reliability |
>99 % |
|
|
Position latency |
<20 ms |
|
|
Maximum position/attitude update rate |
50 Hz (AX940 and AX940i GNSS mode) 100 Hz (AX940i INS mode) |
|
11 sigma level when using a Trimble Zephyr 3 antenna. These specifications may be affected by atmospheric conditions, signal multipath, and satellite geometry. Initialization reliability is continuously monitored to ensure highest quality.
2 As required by the US Department of Commerce to comply with export licensing restrictions
