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Old 12-03-2020, 09:54 AM
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AussieSky (Greg)
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The Milky Way at 1420Mhz

The Milky Way at 1420Mhz from 150 k's west of Sydney


http://www.aussiesky.net/pix/MilkyWay11Mar20.jpg
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Old 12-03-2020, 10:00 AM
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multiweb (Marc)
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That's pretty cool. Can you explain what we're looking at?
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Old 12-03-2020, 10:16 AM
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It would be good if you mention the equipment used (antenna, receiver/recorder parameters) and measuring method...

Last edited by bojan; 12-03-2020 at 10:32 AM.
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Old 12-03-2020, 11:09 AM
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AussieSky (Greg)
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It's a waterfall plot of an all sky scan of The Milky Way at 1420Mhz using the following equipment and software. Just finished yesterday, took several weeks running 24/7
see http://www.gco.org.au/SRTInfo/srt.html
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Old 17-03-2020, 08:55 AM
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Great work.

How do you manage gain variation of the LNA and receiver with diurnal temperature swings?
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Old 23-03-2020, 06:49 PM
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I put the SRT to a fixed position looking into the sky, and let it stay there for a couple of days to look for variations of the receiver level with time to see if there is a variation with ambient temperature. Since then I have not seen a clear relation of the signal to daily temperature rise/fall, I suspect that I might not find any, but I'd like to be sure, so will do some further investigation. I'll get back to you when I have any further data.
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