RTL-SDR Blog V3 dongle is based on the R820T2 tuner chip
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The RTL-SDR Blog V3 dongle is based on the R820T2 tuner chip. Its useful bandwidth is limited by the USB 2.0 bus and the RTL2832U demodulator chip. You can push…
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Jason Burnfield’s Design Calculator for Offset 3m Radio Astronomy Dish
Jason has set himself the challenge of designing and building such a dish – first step is design and he has created an Excel Spreadsheet calculator for this purpose –…
Design of offset satellite dish – is it half a parabola?
An offset satellite dish is not literally “half a parabola,” though it is related to a parabola. Here’s the distinction: So, instead of being “half a parabola,” an offset dish…
Museum of Liverpool building acts like a guitar sounding box reflecting sound as if a large were installed in it.
There is no speaker on this building! Physics in action https://www.astronomy.me.uk/wp-admin/upload.php?item=14185 https://www.astronomy.me.uk/wp-admin/upload.php?item=14186
How to move calender from one account to another, when both are Microsoft Outlook accounts.
You can move or copy a calendar between two Outlook accounts, but the method depends on whether you’re using desktop Outlook (Windows/Mac) or Outlook on the Web. Here are the…
How to add a Trusted File in McAfee to prevent the antivirus software quarantining it
Here’s how to add a trusted file (i.e., exclude it from scans) in McAfee — the options vary slightly depending on the version you’re using: Adding a Trusted File to…
Grafana Dashboard for my pair of UKRAA Cosmicwatch Muon Detectors still shows cyclical variation in levels every few hours
I moved them away from power sockets and still show this cyclical variation below.
Magnetometer sensitivity to vibrations & orientation.
I am currently testing my magnetometer. It is on the same table where my laptop sits and the following screenshot shows just how sensitive magnetometers are to vibrations amd slight…