GSV
Applicable to: UC6580, UM620 series, UM621 series, UM670A, UM680A, UM681A.
| Syntax | $--GSV,NoMsg,MsgNo,NoSv,sv1,elv1,az1,cno1,sv2,elv2,az2,cno2,sv3,elv3,az3, cno3,sv4,elv4,az4,cno4,signalID*cs\r\n |
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|---|---|---|
| Example | $GPGSV,3,01,11,02,34,277,41,03,16,043,35,05,04,215,35,06,69,333,48,0*57\r\n $GPGSV,3,02,11,09,25,110,41,12,31,305,43,17,55,116,46,19,76,088,46,0*56\r\n $GPGSV,3,03,11,23,23,077,40,25,04,328,32,28,05,171,36,0*67\r\n $GBGSV,3,01,12,01,37,145,42,02,34,225,39,03,44,188,42,04,25,123,37,0*4C\r\n $GBGSV,3,02,12,05,17,249,36,06,30,169,38,07,03,188,31,08,69,027,43,0*4E\r\n $GBGSV,3,03,12,09,09,186,34,10,15,211,36,12,26,306,40,13,60,316,44,0*48\r\n |
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| Description | GNSS satellites in view; each GSV message contains information for only 4 satellites. When the number of satellites exceeds 4, the receiver sends multiple GSV messages continuously |
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| Input/Output | Output | |
| Parameter Definition | ||
| Parameter | Format | Description |
| -- | STR | Positioning system flag GP - GPS/WAAS satellite information* GB - BDS/BDS SBAS satellite information GA - GAL/EGNOS satellite information GL - GLO/SDCM satellite information GI - IRNSS/GAGAN satellite information GQ - QZSS/MASAS satellite information |
| NoMsg | UINT | Total number of GSV messages on the current system at the current frequency; the minimum value is 1 and the maximum value is 9 |
| MsgNo | UINT | GSV message ID; the minimum value is 1 and the maximum value is 9 |
| NoSv | UINT | Total number of visible satellites on the current system at the current frequency |
| sv1 to sv4 | UINT | Satellite IDs of the first to fourth satellite; see Satellite Identifiers. |
| elv1 to elv4 | UINT | Elevation of the first to fourth satellite; unit: deg; range: 0 to 90; fixed output of 2 digits; add leading zeros if less than 2 digits |
| az1 to az4 | UINT | Azimuth of the first to fourth satellite; unit: deg; range: 0 to 359; fixed output of 3 digits; add leading zeros if less than 3 digits |
| cno1 to cno4 | UINT | CNR of the first to fourth satellite; unit: dB-Hz; range: 0 to 99; fixed output of 2 digits; add leading zeros if less than 2 digits; fill null for untracked satellites |
| signalID | UINT | Signal ID defined by NMEA protocol; see Signal Identifiers. |
| cs | STR | Checksum; two hexadecimal characters obtained by calculating an XOR of all characters between but not including ‘$' to ‘*' in this message |
*. For UM620S, the output is GP – GPS/QZSS joint positioning, and does not support GQ. ↩