Rtk Gps

RTK GPS Shot Accuracy?

Which option would give more accurate results?

1. The average of two RTK GPS shots on the same point separated by 30 seconds.

2. The average of two RTK GPS shots on the same point separated by 2 hours.

Pleas, explain.

If you have a good RTK system then it shouldn't make much difference.
2 hours will in theory be a little better since the satellite constellation will have changed, that means that constellation dependent errors will be different and so average out more than for two points taken 30 seconds apart when those errors will be very similar.

Of course it depends when you take the points, ionospheric effects get worse in the evening, constellation geometry is constantly changing and has a huge impact on accuracy etc... So if the conditions are worse 2 hours later then the increased error due to other factors could well be more than the decrease in error due to taking the two points further apart.

And if accuracy is really that important then you wouldn't be taking two points 30 seconds or 2 hours apart. You'd be taking a point every second for at least 40 minutes and averaging.

Find Rtk Gps On eBay Below:

Leica Style GPS  RTK Adapter Replacement of GRT146 Total Station Adapter
Leica Style GPS RTK Adapter Replacement of GRT146 Total Station Adapter
$50.76
Trimble Style GPS  RTK Adapter T5 Total Station Adapter
Trimble Style GPS RTK Adapter T5 Total Station Adapter
$23.20
BL 5000 Hi target GPS RTK Battery For Series HI Target RTK GPS
BL 5000 Hi target GPS RTK Battery For Series HI Target RTK GPS
$42.50
Trimble MS990 DUAL RTK GPS GLONASS Grade Control Receivers MS980 MS992
Trimble MS990 DUAL RTK GPS GLONASS Grade Control Receivers MS980 MS992
$13,990.00
LEICA GS 15 RTK GPS GLONASS ONE PAIR GOOD WORKING CONDITION WITH HARD CASE
LEICA GS 15 RTK GPS GLONASS ONE PAIR GOOD WORKING CONDITION WITH HARD CASE
$12,750.00
Chinese brand GNSS GPS receiver CHC i80 RTK
Chinese brand GNSS GPS receiver CHC i80 RTK
$13,500.00
Chinese brand CHC X10 GPS RTK receiver GNSS
Chinese brand CHC X10 GPS RTK receiver GNSS
$9,200.00
CHC X900 GPS receiver RTK
CHC X900 GPS receiver RTK
$8,600.00
Geosun eFix R1 Trimble board GPS RTK GNSS good price
Geosun eFix R1 Trimble board GPS RTK GNSS good price
$7,600.00
Topcon GPS Antenna GR 3 GR 5 Hiper Lite + Surveying RTK
Topcon GPS Antenna GR 3 GR 5 Hiper Lite + Surveying RTK
$49.00
New Rotating Tribrach Adapter For Prism Adjustment Total Station GPS GNSS RTK
New Rotating Tribrach Adapter For Prism Adjustment Total Station GPS GNSS RTK
$45.45
Topcon Sokkia GPS Antenna GR 3 GR 5 Hiper II GRX1 GRX2 Surveying RTK
Topcon Sokkia GPS Antenna GR 3 GR 5 Hiper II GRX1 GRX2 Surveying RTK
$55.00
Trimble R8 Model 2 GNSS GPS L1 L2 L2c L5 RTK 450 470mhz TSC3 TX Enabled
Trimble R8 Model 2 GNSS GPS L1 L2 L2c L5 RTK 450 470mhz TSC3 TX Enabled
$13,499.99
Trimble R8 Model 2  R7 GNSS GPS L1 L2 L2c L5 RTK 450 470mhz TSC3 TX Enabled
Trimble R8 Model 2 R7 GNSS GPS L1 L2 L2c L5 RTK 450 470mhz TSC3 TX Enabled
$15,499.99
Trimble IS Solution S6 Robotic Total Station  R8 Model 3 GPS GNSS RTK Set TSC3
Trimble IS Solution S6 Robotic Total Station R8 Model 3 GPS GNSS RTK Set TSC3
$38,999.99
Trimble R8 Model 2 GNSS GPS L1 L2 L2c L5 RTK 450 470mhz Rover Only R8 2
Trimble R8 Model 2 GNSS GPS L1 L2 L2c L5 RTK 450 470mhz Rover Only R8 2
$5,499.99
Trimble TSC2 Charger for Data Collector Surveying RTK GPS
Trimble TSC2 Charger for Data Collector Surveying RTK GPS
$72.75
New accuracy chc i80 gps rtk Receiver one base and one rover
New accuracy chc i80 gps rtk Receiver one base and one rover
$13,000.00
Trimble CAT MS990 RTK GPS Grade Control Receiver 55760 00 MS 990
Trimble CAT MS990 RTK GPS Grade Control Receiver 55760 00 MS 990
$6,115.50
Sokkia GRX1 GPS Glonass Base Rover GNSS RTK System 450 470MHz GRX 1 U TopSurv
Sokkia GRX1 GPS Glonass Base Rover GNSS RTK System 450 470MHz GRX 1 U TopSurv
$8,795.00
No Further Test Trimble 5800 Rover RTK GPS Survey Receiver 902 928MHz Radio
No Further Test Trimble 5800 Rover RTK GPS Survey Receiver 902 928MHz Radio
$1,850.99
Trimble SPS750 GPS L1 2 BASIC Base Rover Station W 900MHz RTK Transceiver Radio
Trimble SPS750 GPS L1 2 BASIC Base Rover Station W 900MHz RTK Transceiver Radio
$2,287.99
New Topcon GPS Network Antenna GR 3 GR 5 Hiper Lite + Surveying RTK
New Topcon GPS Network Antenna GR 3 GR 5 Hiper Lite + Surveying RTK
$13.12
TRIMBLE 32364 00 GPS EXTERNAL BATTERY PACK57005800R4R5R6R7R8R9R10RTK
TRIMBLE 32364 00 GPS EXTERNAL BATTERY PACK57005800R4R5R6R7R8R9R10RTK
$225.00
SATLAB SL 600 6G GNSS RTK GPS SYSTEM ALL CONSTELLATIONS TOPCON TRIMBLE
SATLAB SL 600 6G GNSS RTK GPS SYSTEM ALL CONSTELLATIONS TOPCON TRIMBLE
$17,850.00
Trimble CAT MS990 RTK GPS GLONASS Grade Control Receiver Set GCS900 55760 00
Trimble CAT MS990 RTK GPS GLONASS Grade Control Receiver Set GCS900 55760 00
$9,445.50
Sokkia GRX1 U GNSS GPS RTK 450 470mhz Topcon FC250 Pocket 3D Hiper
Sokkia GRX1 U GNSS GPS RTK 450 470mhz Topcon FC250 Pocket 3D Hiper
$12,999.99
CAT Trimble MS990C RTK GPS GLONASS Grade Control Receiver MS980 MS992
CAT Trimble MS990C RTK GPS GLONASS Grade Control Receiver MS980 MS992
$3,999.00
New Hi Target CL 4400 For BL 4400 BL 5000 V30 F61 V50 F66 H32 A8 V9 V10 RTK GPS
New Hi Target CL 4400 For BL 4400 BL 5000 V30 F61 V50 F66 H32 A8 V9 V10 RTK GPS
$55.00
Trimble R6 Model 2 GPS GNSS RTK VRS Survey Receiver w TSC2 Access 450 470MHz
Trimble R6 Model 2 GPS GNSS RTK VRS Survey Receiver w TSC2 Access 450 470MHz
$4,995.00
Trimble R6 Model 2 GPS GNSS Glonass RTK Survey Receiver w 450 470MHz Radio
Trimble R6 Model 2 GPS GNSS Glonass RTK Survey Receiver w 450 470MHz Radio
$4,295.00
Trimble R8 Model 2 GNSS GPS L1 L2 L2c L5 RTK 450 470mhz Ranger 3 ADL Vantage
Trimble R8 Model 2 GNSS GPS L1 L2 L2c L5 RTK 450 470mhz Ranger 3 ADL Vantage
$13,999.99


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