[FOSS-GPS] NV08C-CSM STRSVR settings.

Dhirendra singh dskumher1968 at gmail.com
Mon Aug 8 19:30:06 PDT 2016


Hi everybody, I am using nv08c as the base & Hemisphere A100 cresent based
smart antenna as the rover. Base line distance 4.22 meter only. Both rover
& base on the same computer. Using SNIP NTRIP caster for sending &
receiving base data.Sky conditions are quite open. * I can get fix after 10
minutes when base & rover input is through serial ports only* but never get
fix on base input on NTRIP client. I will highly appreciate if anybody can
help me. I need some clarification regarding NV08c-csm RTCM messages also.

*1)- *RTKLIB manual says it supports RTCM V3 only but NV08C perhaps suppots
v2,2 only. So,in STRSVR for nv08c base to output RTCM msg. as ntrip server,
should I choose conversion option nv08c to  RTCM 2 or 3 ?,What should be
the necessary message numbers(nv08c supports msg. 1,9,31 & 32 rtcm 2.2,
rtklib perhaps supports msg.18,19,17,3,22,14,16.)

*2)-*Should I choose the conversion option in strsvr from nv08c to rtcm at
all or  keep the option unchecked .

*3)-*In RTKNAVI input stream window, which base input format should I
choose, RTCM 2 or 3 ?

*4)-* Should I choose NTRIP transmission option or radio data link option
for distances up to 5 km max.? I am attaching the screenshots for the
STRSVR window, I suspect that there is delay between  the data transmission
from nv08c & RTCM output. Am I correct?

*5)-* Does current RTKLIB 2.4.2 with patch 11 support GLONASS & BEIDOU
satellite RTK correction ?


I am attaching the all relevant screenshots, kindly help me find cause of
no fix on NTRIP RTCM base input.
With best regards,
Dhirendra singh,
INDIA
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