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To meet various positioning
applications, we provide you 4 different GPS modules which are
facilitating 2 different GPS core technologies. We put all the 4
different GPS modules together. It is much easier for you to compare
their specifications in one page and select the one you need.
You may find low power consumption, SiRF Star II or Star I compatible
GPS modules below. Whether you are in the auto navigation, PDA
navigation, agriculture, surveying, fleet management, security or
hobbies, once you come up your decision just contact us to discuss your
requirements and how we can help you. We will get back to you within 24 hours. |
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Model NO.
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GPS-23
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GPS-22
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GPS-21-LP
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GPS-21
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GPS-20
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Features |
Low Cost
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High Accuracy
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Popular Chip |
Popular Chip
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Popular Chip |
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Power Consumption |
27mA (3.3V) |
17mA (3.3V) |
70mA (3.3V) |
160mA (3.3V) |
100mA (3.3V) |
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Trickle Power |
10-27mA |
3-17mA |
35-70mA |
70-160mA |
70-160mA |
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Positioning Accuracy |
25M (95%) |
5M (90%) |
25M (95%) |
25M (95%) |
25M (95%) |
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Key Technology |
ACO |
FirstGPS™ |
SiRF Star II |
SiRF Star II |
SiRF Star II |
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Remarks |
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Star I compatible |
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Performance
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Receiver |
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GPS Signal |
L1, C/A code |
L1, C/A code |
L1, C/A code |
L1, C/A code |
L1, C/A code |
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Channel |
12 Channel |
8 Channel |
12 Channel |
12 Channel. |
12 Channel |
Tracking Sensitivity
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-165dBw |
-173dBw |
-165dBw |
-165dBw |
-165dBw |
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WAAS |
No |
No |
Yes |
Yes |
Yes |
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DGPS |
No |
No |
Yes |
Yes |
Yes |
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Acquisition Time |
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Hot Start |
15 Sec |
10 Sec |
8 Sec |
8 Sec |
8 Sec |
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Warm Start |
45 Sec |
42 Sec |
38 Sec |
38 Sec |
38 Sec |
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Cold Start |
90 Sec |
120 Sec |
45 Sec |
45 Sec |
45 Sec |
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Update |
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Reacquisition |
0.1 Sec |
0.1 Sec |
0.1 Sec |
0.1 Sec |
0.1 Sec |
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Update |
1 Sec |
1 Sec |
1 Sec |
1 Sec |
1 Sec |
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Accuracy |
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Position |
25 M (90%) |
5 M (90%) |
25 M (95%) |
25 M (95%) |
25 M (95%) |
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Velocity |
0.1 m/sec |
0.1 m/sec |
0.1 m/sec |
0.1 m/sec |
0.1 m/sec |
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Acceleration |
±4G |
±4G |
±4G |
±4G |
±4G |
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Dynamic Conditions |
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Altitude |
18,000 meters |
18,000 meters |
18,000 meters |
18,000 meters |
18,000 meters |
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Velocity |
515m/sec |
515m/sec |
515m/sec |
515m/sec |
515m/sec |
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Acceleration |
4G, Max |
4G, Max |
4G, Max |
4G, Max |
4G, Max |
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Interface |
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TTL |
Standard |
Standard |
Standard |
Standard |
Standard |
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RS-232 |
Optional |
Optional |
Optional |
Optional |
Optional |
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Physical |
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Dimension(W x D x H) mm |
70.0 x 40.0 x 10.5 |
31.59 x 26.59 x 11.20 |
36.09 x 20.40 x 9.0 |
36.0 x 24.0 x 6.0 |
71.1 x 40.6 x 14.6 |
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(W x D x H) inch |
2.76 x1.57 x 0.41 |
1.24 x 1.05 x 0.44 |
1.42 x 0.95 x 0.24 |
1.42 x 0.95 x 0.24 |
2.80 x 1.60 x 0.57 |
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Connector |
SMA |
HFS |
MMCX |
MMCX |
MMCX |
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Power |
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Input (VDC) |
3.3 3 ± 10% |
3.0 - 3.65 |
3.3 ± 5% |
3.3 ± 5% |
3.3 ± 10% |
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Internal Back up |
2.5 - 3.3 |
2.5 - 3.3 |
2.5 - 3.3 |
2.5 - 3.3 |
2.5 - 3.3 |
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Environmental Characteristics |
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Operating Temperature |
-40 ~ 85°C |
-40 ~ 85°C |
-40 ~ 85°C |
-40 ~ 85°C |
-40 ~ 85°C |
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Storage Temperature |
-55 ~ 100°C |
-55 ~ 100°C |
-55 ~ 100°C |
-55 ~ 100°C |
-55 ~ 100°C |
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Manufacturing Default |
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Datum |
WGS84 |
WGS84 |
WGS84 |
WGS84 |
WGS84 |
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Baud Rate |
4,800 |
4,800 |
4,800 |
4,800 |
4,800 |
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Sentences |
GGA,GSA
GSV,RMC
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GGA,GSA
GSV,RMC
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GGA,GSA
GSV,RMC |
GGA,GSA
GSV,RMC |
GGA,GSA
GSV,RMC |
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