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RTCM 3.3 versus CMRx
I was testing a receiver today over starlink. Trimble Alloy wifi to starlink to SNIP (Simple NTrip Caster) running on PC in office.
Tracking 33 SV’s. RTCM 3.3 was about 4390 bits/sec. CRMx was 3200 bps. So CMRx in this case is about 27% more efficient
First time I tried starlink. I usually use a cell modem or mifi hotspot. But no issues at all. And it is pouring down rain here.
I used to always want to use a static IP and connect directly to the base over cell. Could not use a mifi because it does not have a static IP. But now that I run SNIP, no reason to have to use static IP. And my office network does not have a static IP, but uses a dynamic IP service to update the IP address to the URL I assigned.
The only drawback to Starlink is that it draws about 40W (Starlink Mini)
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This discussion was modified 1 week, 4 days ago by
john-hamilton.
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This discussion was modified 1 week, 4 days ago by john-hamilton.
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This discussion was modified 1 week, 4 days ago by
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1 Reply
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This is excellent information. Not heard of RTCM3.3 being used either. Figured most on 3.2 would jump to 3.4 as I thought I saw a post on here a while back saying it will be a more compressed message.
I do a lot of rural work and 4G is too patchy so rely on UHF, thankfully we are still on 25kHz here but looking forward to being when satellite communication supercedes radio in the receiver’s.
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