Thanks Jan
Have not had any luck w/ the CEVROSAT1 uplink myself, but seems like quite a few people have. Wish I could find the magic formula!
Here is an observation over the Eastern U.S. this afternoon that was obviously uploaded elsewhere w/ a delay included.
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The DNxD works great.
And CEVROSAT-1 hears even better than LASARsat.
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Not here yet, but it’s not for lack of trying.
From your earlier post, is this the TO & VIA that you’re using?
DL7NDR To JN48AP Via OK0CVR-7
DL7NDR in previous post mentioned:
The digipeater looks like the same as the one of GRBAlpha.
This means NO via path.
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There is no VIA needed. Just sent to an arbitrary TO callsign.
For the reply, CEVROSAT-1 adds “Via OK0CVR-7”.
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Quite a mystery… today I even ran my 9k6 uplinks thru the 80w RF amp (input level put me at 70w out) and still no luck. My ‘no antenna’ SDR nearby confirmed good 9k6 decodes and even illustrated my reverse-doppler adjustments during the pass. Don’t know, but have a higher CEVROSAT-1 pass tonight so I’ll keep trying!
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I’ve compared your frame to mine.
Apart from your SSID 6 (mine is 0), my c/r for the source callsign is 1, yours is 0.
source DL7NDR 0 c/r=1 res=3 last=1
I cannot imagine that this could be a problem for CEVROSAT-1, but if you like to try c/r=1, then modify your frame to
86 a2 40 40 40 40 e0 96 68 96 88 a4 40 ed 03 f0
You don’t have to add an info text.
Inject it into direwolf using
echo ‘c00086a240404040e096689688a440ed03f0c0’ | xxd -r -p | nc -N 127.0.0.1 8001
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Thanks - and one other variable… are you transmitting w/ your radio’s ‘normal’ FM deviation or with what most of them call ‘FM-Narrow’?
I’m transmitting at normal FM deviation.
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Thanks to the DL7NDR, the kaitai is made, could I ask for elevation of my account to try implement the Grafana for CEVROSAT-1?
Hi @ok2pnq I’ve created CEVROSAT-1 team in Grafana and added you. The team has permissions to add/edit/copy dashboards in the scratchpad folder. You can start experimenting with a new dashboard and when is ready we can copy it to Telemetry folder where the public dashboards live.
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Just copy the Dashboard of GRBAlpha, adjust the NoradID and check which panels are working.
TLE for CEVROSAT-1:
CEVROSAT-1
1 98526U 25248E 25313.13142326 .00000000 00000-0 19360-3 0 02
2 98526 45.4084 218.4764 0001315 254.8982 242.1062 15.17981583 02
sites.txt (11.7 KB)
cevrosat_313_v1.dat (980 Bytes)
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CEVROSAT-1: No beacon since 2025-11-09 04:49:53.
Digipeater doesn’t respond.
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Still not a peep from the Taurus quads on either of the 401 MHz freqs nor S-Band. (at least over the Eastern U.S.)
Has anyone heard if they are communicating or functional in any way?
Well, bummer I just about to tried its Digipeater.
I read up from JI1IZR’s blog post on how to use the digipeater from GRBAlpha and Cevrosat’s website on using DNxD system and these setting should be correct it seems?
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I’ve not had any luck, either, but plenty of stations have.
HOWEVER, it appears to be offline for the past 24-hours or so. Nothing heard over the Eastern U.S. tonight either.
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That’s correct.
Yes, CEVROSAT-1’s website explains it pretty well.
If you send without @xyzxyz, then the respond would start like YG4SLJ to CQ via OK0CVR-7.
If you use DNxD, then your message would retransmitted starting with YG4SLJ to CQ via OK0CVR-8.
To be able to receive your own DNxD message, you should choose for example @001 or @097 for the following pass.
However, CEVROSAT-1 seems to be currently offline.
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Last successful reception from the Network was at 2025-11-09 07:30.
Wondering if the active status of the digipeater and the use of it affected the status of the satellite.
Anyway we continue to track it and see if it will come back alive.
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