BOM-DAT/inductor-dat/2024-10-09-18-43-27.png
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BOM-DAT/inductor-dat/inductor-dat.md
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@@ -0,0 +1,6 @@
1
+
2
+# inductor-dat
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+
4
+## high freq. inductor 47nh
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+
6
+![](2024-10-09-18-43-27.png)
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\ No newline at end of file
Chip-cn-dat/quectel-dat/quectel-gps-dat/L76-dat/2024-10-09-17-58-17.png
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Chip-cn-dat/quectel-dat/quectel-gps-dat/L76-dat/L76-dat.md
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@@ -12,6 +12,10 @@ The module can be connected to a dedicated passive or an active single-band GNSS
12 12
- L76-L supports: Additional LNA, I2C
13 13
14 14
15
+## block diagram
16
+
17
+![](2024-10-09-17-58-17.png)
18
+
15 19
## standby mode
16 20
17 21
Pulling STANDBY pin low will make the GNSS module enter Standby mode and releasing STANDBY pin which has been pulled high internally will make the modules back to Continuous mode.
... ...
@@ -26,6 +30,6 @@ Sending corresponding command will make the modules enter Standby mode. Sending
26 30
27 31
## ref
28 32
29
-- [[antenna-dat]]
33
+- [[antenna-dat]] - [[gps-dat]]
30 34
31 35
- [[L76]]
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\ No newline at end of file
Tech-dat/Network-dat/location-dat/GNSS-dat/GNSS-dat.md
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@@ -0,0 +1,23 @@
1
+
2
+# GNSS-dat
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+
4
+- gnss protocol - [[quectel_l76-lbl26-lblc86l_gnss_protocol_specification_v2-2.pdf]]
5
+
6
+- GSV - GNSS Satellites in View.
7
+
8
+- GSA - GNSS DOP and Active Satellites. GNSS receiver operating mode, satellites used in the navigation
9
+solution reported by the GGA sentence, and DOP values.
10
+
11
+- GLL - Geographic Position – Latitude/Longitude.
12
+
13
+- GGA - Global Positioning System Fix Data. Time, position, and fix-related data for a GNSS receiver.
14
+
15
+- VTG - Course Over Ground & Ground Speed.
16
+
17
+- RMC - Recommended Minimum Specific GNSS Data. Time, date, position, course, and speed data provided by
18
+a GNSS receiver.
19
+
20
+
21
+## ref
22
+
23
+- [[GPS-dat]]
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\ No newline at end of file
Tech-dat/Network-dat/location-dat/GNSS-dat/quectel_l76-lbl26-lblc86l_gnss_protocol_specification_v2-2.pdf
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Tech-dat/Network-dat/location-dat/GPS-dat/GPS-dat.md
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@@ -16,6 +16,11 @@
16 16
- gzss
17 17
18 18
19
+## software
20
+
21
+- https://igs.bkg.bund.de/ntrip/download
22
+
23
+
19 24
20 25
21 26
## Tesing
Tech-dat/antenna-dat/Antenna/antenna-DAT.md
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@@ -12,7 +12,7 @@
12 12
13 13
- [[NAN1001-dat]] - [[NAN1003-dat]] - [[NAN1005-dat]] - [[NAN1008-dat]]
14 14
15
-
15
+- [[antenna-design-dat]]
16 16
17 17
## antenna shape, size and gain
18 18
... ...
@@ -22,6 +22,26 @@
22 22
| gain | 2dbi | 8dbi |
23 23
| Features | - | foldable |
24 24
25
+
26
+## GNSS recommanded antenna specifications
27
+
28
+passive
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+
30
+- Frequency Range: 1559–1609 MHz
31
+- Polarization: RHCP
32
+- VSWR: < 2 (Typ.)
33
+- Passive Antenna Gain: > 0 dBi
34
+
35
+active
36
+
37
+- Frequency Range: 1559–1609 MHz
38
+- Polarization: RHCP
39
+- VSWR: < 2 (Typ.)
40
+- Passive Antenna Gain: > 0 dBi
41
+- Active Antenna Noise Figure: < 1.5 dB
42
+- Active Antenna Total Gain: < 18 d
43
+
44
+
25 45
## Connection Type
26 46
27 47
- Wire or Pin Soldering
Tech-dat/antenna-dat/antenna-design-dat/GPS-antenna-design-dat/GPS-antenna-design-dat.md
... ...
@@ -25,5 +25,8 @@ RC = 10r / 47nH
25 25
26 26
![](2024-10-02-21-26-33.png)
27 27
28
+- [[inductor-dat]]
29
+
30
+
28 31
29 32
## ref
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\ No newline at end of file
Tech-dat/antenna-dat/antenna-design-dat/antenna-design-dat.md
... ...
@@ -18,4 +18,4 @@
18 18
19 19
20 20
21
-- [[GPS-antenna-design-dat]]
... ...
\ No newline at end of file
0
+- [[GPS-antenna-design-dat]]
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\ No newline at end of file
Tech-dat/tech-dat.md
... ...
@@ -38,6 +38,7 @@
38 38
39 39
- [[bluetooth-dat]]
40 40
41
+- [[location-dat]]
41 42
42 43
### Power
43 44