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Mailbox Rain Detection System
Here is some additional info regarding that RuuviTag based mailbox alarm system explained earlier post which quite quickly leads to advanced meteorological measuring device. The basic idea of current RuuviTag installation is shown in picture below. Sensor is located just below the tiltable metal cover. Water droplets create small detectable vibration, like drumming effect, which…
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RuuviTag mail arrival alert science
Hello after some break with blog updates, I got a case to arrange mailbox alarm to prevent unnecessary visits to the mailbox. Site already had RuuviTag based measurement system with gateway, so next step was to install one additional sensor inside mailbox. The sensor was installed on the inside of the mailbox cover using adhesive…
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Xiegu X6100 & VaraAC V6.2.4 broadcast mode first tests
Looks like I was able to get Xiegu X6100 running succesfully with VaraAC and laptop. Some filter issues have to be still investigated. First test with VaraAC V6.2.4 new X25 broadcast mode was also working properly. Here is small example QSO with DK1QG. Many thanks Chris about this great little test! Broadcast mode is just…
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Ceske Radiokommunikace DRM 954 KHz
Reception 2022-11-16 20:05 UTC
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DRM broadcasts from China
China is broadcasting more and more DRM-transmissions. Here is reception example from 17830 KHz 2022-11-15 06:00 UTC. Stable signal and fully decoded audio.
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Moon, Vantaa 2022-11-13 09:29 UTC
Some quick experiments with Giant binoculars and mobile phone. Just phone, no any adapters. Art.
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OH2GAX
This is OH2GAX blog! Stay tuned.