Taoglas STS.01 User manual - 9. Device Performance
Page 8 of 14
9. Device Performance
9.1 Iridium Approval
The Spartan STS.01 has been approved by Iridium for use on the Iridium satellite
system. The approval process involves a side-by-side comparison to Iridium's
baseline antenna. The baseline antenna is similar in size to the Spartan STS.01.
Therefore, the baseline antenna should be viewed as maximum potential
performance for any device. There are 4 performance characteristics that are covered
in this comparison. Those characteristics are Voice Mode Call Performance, Data
Mode Performance, Downlink Margin, and Power Control Efficiency. The testing
results are shown in the following sections.
9.1.1 Voice Mode Call Performance
The test consisted of 180 second calls being made to the gateway used in testing.
Figure 4 contains the performance results for the antenna for the test duration.
180 Second
I2P Voice
Calls
Call
Attempts
Call
Setup
Rate
Call
Drop
Rate
Average
Channel
Assignment
Time
Access
Rate
Average
Access
Time
Average
Setup
time
Spartan
STS.01
Transceiver
Antenna
System
1220
98.03% 2.93%
4.97
98.20%
7.17
9.85
Iridium
Transceiver
+ Baseline
Antenna
1220
98.77% 1.99%
4.76
99.02%
6.93
9.6
Figure 4
-
Voice Mode Call Performance