General Information
DGPS is a radio standard for transmission of corrections to the satellite ranging measurements (GPS and GLONASS). This radio standard is based on the recommendations of the RTCM Special Committee 104 (SC-104).
Usage:
§ Transmission of differential correction signals.
Mode Details
|
|
Item |
Value |
|
Standard |
Modulation |
MSK / QPSK |
|
|
Symbol rate (Baud) |
100 / 300 |
|
|
Coding |
Parity checksum, CRC |
|
Demodulator Settings |
Demodulator |
(G)MSK |
|
|
Type |
MSK |
|
|
Symbol rate (Bd) |
200 |
|
|
SR tolerance (Bd) |
10 |
|
Features |
Demodulation |
yes |
|
|
Recognition |
yes |
|
|
Decoding |
yes |
|
|
Automatic Polarity Adjustment |
no |
|
|
Combination with other modems (modem list) |
yes |
|
Tuning |
The tuning frequency is the center of the signal | |
|
Frequencies |
283–315 kHz 435–495 kHz 505–526 kHz 1625–1635 kHz 1800–1810 kHz 1850–2000 kHz 2000–2025 kHz 2160–2170 kHz 2625–2650 kHz 2650–2850 kHz 3155–3200 kHz 3200–3230 kHz 3500–3800 kHz | |
Table 102: DGPS
Figure 36: DGPS Spectrogram