Started testing of the S300 with the Noaaport DVB-S2 signal this week. So far I'm not impressed. Signal level is down 2-3db from the DVB signal. Most likely right on threshold so if we get significant weather in the area the signal will be lost. Slim chance but I hope they boost the signal another db or two.
More to come...
I lowered the tower today to see if that might be part of the problem with the signal. Had a similar situation in late November with the DVB signal and thought I had an improvement but then they increased the power on the transponder and things were great! C/N is a bit better today. Running between 8.5 and 9.0 as opposed to the 7.9 to 8.4 last night. I haven't reached any conclusions as to whether this is the drier weather today or an issue with the tower be in line of sight to SES-1. Interestingly some other Noaaport users are getting less signal percentage wise (about 30%) but are seeing C/N between 12-14.
More to come..
Out of the blue today, Noaa decided to try a different frequency on the bird. I noticed shortly after arriving at work that the signal was gone and less than 30minutes later I saw another signal that looked like Noaaport very closeby. So I retuned the Novra S-300 remotely and in a matter of seconds data was flowing again. I'm hoping they keep the signal where it is now as it is no more than 1/2db lower than the legacy DVB-S signal. C/N was approaching 11.5dbm today before the weather started to deteriorate. I did get the tower fully nested today (before the frequency change) and that improved the C/N aproximately .2-.3dbm. So I'm also certain the tower contributes some loss into the system. If they stay at the current power level that shouldn't be too much of an issue. In the far left picture is the DVB-S2 in the middle of the spectrum analyzer and the legacy DVB on the far left edge.
More to come...
I lowered the tower today to see if that might be part of the problem with the signal. Had a similar situation in late November with the DVB signal and thought I had an improvement but then they increased the power on the transponder and things were great! C/N is a bit better today. Running between 8.5 and 9.0 as opposed to the 7.9 to 8.4 last night. I haven't reached any conclusions as to whether this is the drier weather today or an issue with the tower be in line of sight to SES-1. Interestingly some other Noaaport users are getting less signal percentage wise (about 30%) but are seeing C/N between 12-14.
More to come..
Out of the blue today, Noaa decided to try a different frequency on the bird. I noticed shortly after arriving at work that the signal was gone and less than 30minutes later I saw another signal that looked like Noaaport very closeby. So I retuned the Novra S-300 remotely and in a matter of seconds data was flowing again. I'm hoping they keep the signal where it is now as it is no more than 1/2db lower than the legacy DVB-S signal. C/N was approaching 11.5dbm today before the weather started to deteriorate. I did get the tower fully nested today (before the frequency change) and that improved the C/N aproximately .2-.3dbm. So I'm also certain the tower contributes some loss into the system. If they stay at the current power level that shouldn't be too much of an issue. In the far left picture is the DVB-S2 in the middle of the spectrum analyzer and the legacy DVB on the far left edge.
More to come...
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