DATE: 2022-01-17
TIME: 11:25 UTC

Good day. Some minor updates...
I've not found a PDA to play with. Just searching for something
vintage with a nice keyboard and really portable but I've to 
crawl in the internet stores.

And that's not all: after buying all sorts of Geiger counters,
not I'm going in search of a fishing sonar to use as a GPR.
Me and my beloved, have a blog about misteries and folklore,
so a GPR is quite useful to scan ground but it's really 
expensive gear. Fortunately, fishing sonars have a bit of
capability to penetrate ground and give a feedback.
I've to study this matter more but I've tested in the weekend
"Pulse Echo Sonar Meter" app for Android and I was quite
impressed. As a meter it didn't work quite well but to make
sonar analisys it seems interesting: there are patterns
recognizeable for hidden chambers or density changes in ground.
The problem is the app works with audible pulses while the 
fishing sonars use ultrasounds to make better results.
But... will be those ultrasounds ground penetrating enough?
Who can say. I'll search for a sonar under 150kHz pulse.

Acquarium is going well. I've added three cleaning fishes and
two of them really reached all the dirt and stored it in the 
center of the pool: good boy!

Have a nice life!