Gnss Performance - Quectel UC20 Manual
Umts/hspa module series
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Also See for UC20:
- Hardware design (83 pages) ,
- User manual (33 pages) ,
- Application note (30 pages)
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4.2. GNSS Performance
The following table shows UC20 GNSS performance.
Table 24: GNSS Performance
Parameter
Description
Cold start
Sensitivity
Reacquisition
(GNSS)
Tracking
Cold start
@open sky
TTFF
Warm start
(GNSS)
@open sky
Hot start
@open sky
Accuracy
CEP-50
(GNSS)
NOTES
1.
Tracking sensitivity: The lowest GPS signal level at the antenna port which the module does not fail
to fix within 5 minutes by reducing signal intensity.
2.
Reacquisition sensitivity: The lowest GPS signal level at the antenna port which the module fixes
within 3 minutes by increasing signal intensity.
3.
Cold start sensitivity: The lowest GPS signal level at the antenna port which the module fixes within 3
minutes by executing cold start command.
UC20_Hardware_Design
Conditions
Autonomous
With LNA
Autonomous
With LNA
Autonomous
With LNA
Autonomous
XTRA enabled
Autonomous
XTRA enabled
Autonomous
XTRA enabled
Autonomous
@open sky
Confidential / Released
UMTS/HSPA Module Series
UC20 Hardware Design
Typ.
Unit
-144
dBm
-147
dBm
-154
dBm
-159
dBm
-155
dBm
-160
dBm
32
s
22
s
29
s
3
s
2.5
s
2
s
<1.5
m
56 / 84
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