Signal History

[jeremywaller]

Greetings Chaps,
I have been using the "Signal History" feature in SDR Console V3.4 and find it very easy to use. There appears to be a problem with the exported csv files. For example here are a few lines from an exported file:

2025-12-24T16:53:43.650,-94.32,-106.82,7246.816,10000
2025-12-24T16:53:43.700,-95.82,-106.83,7246.816,10000 ... 0.05s step
2025-12-24T16:53:43.750,-93.29,-106.86,7246.816,10000 ... 0.10s step
2025-12-24T16:53:43.850,-94.80,-106.85,7246.816,10000 ... 0.05s step
2025-12-24T16:53:43.900,-94.87,-106.87,7246.816,10000 ... 0.10s step
2025-12-24T16:53:44.000,-94.95,-106.91,7246.816,10000 ... 0.05s step
2025-12-24T16:53:44.050,-95.68,-106.92,7246.816,10000 ...
2025-12-24T16:53:44.100,-94.98,-106.89,7246.816,10000 ... 0.05s step
2025-12-24T16:53:44.150,-94.16,-106.92,7246.816,10000 ... 0.10s step
2025-12-24T16:53:44.250,-93.94,-106.92,7246.816,10000 ... 0.05s step
2025-12-24T16:53:44.300,-93.09,-106.93,7246.816,10000 ... 0.10s step
2025-12-24T16:53:44.400,-93.33,-106.91,7246.816,10000
2025-12-24T16:53:44.450,-94.77,-106.90,7246.816,10000

The sampling rate is specified as 20 samples per second (20 sps) with the interval being 50mS. OK. Notice that the time reported in the csv file shows intervals of 0.1s and 0.05s.

Question #1 Is the sampling interval constant but the time reporting is in error ?
Or
Question #2 Is the signal level sampled at the time shown and we have to insert an interpolated value in the longer sampling period ?

[jeremywaller]

It looks as if the sampling method used in SDR console is such that the sampling is done on a time basis hence the missing samples. We know where to insert the missing samples. So, if one needs to use this data one will have to insert the missing samples and smooth the data. Also I would suggest that the sample time base be converted to Julian days.

73 to everybody
Jeremy.