Bat detectors

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TLM

Bushcrafter (boy, I've got a lot to say!)
Nov 16, 2019
3,092
1,624
Vantaa, Finland
Does anyone have experience on these? I probably could build one but I am lazy and I don't have ready access any more to some of the helpful instruments I used to.

Thinking about a self sufficient one or one that could be connected to a phone or tablet.
 

TLM

Bushcrafter (boy, I've got a lot to say!)
Nov 16, 2019
3,092
1,624
Vantaa, Finland
Basically a very high frequency microphone with amplifier. After that there are several possibilities: using one of several ways to change the inaudible tone down to audible range or make a frequency analysis and show a visual pattern of the voice. The very basic detector apparently just shows ultrasounds without any way of identification, the two previous ones can be used for that.
 

Janne

Sent off - Not allowed to play
Feb 10, 2016
12,330
2,293
Grand Cayman, Norway, Sweden
Aha. Sorry, a medical person here....

So you are a Twitcher but on bats? Batman? Batista? Baterrer? Batophile? :)

Plenty of bats here. At sun set, if ?I sit in the pool without moving, the bats swoop down almost to my head, hunting the mosquitoes that are like a cloud around my head.
Never touched me. Expert flyers, much better than the birds!
 
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TLM

Bushcrafter (boy, I've got a lot to say!)
Nov 16, 2019
3,092
1,624
Vantaa, Finland
I mostly watch birds but at night there are not so many but a bat is a flying creature of a kind..
 
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Nomad64

Full Member
Nov 21, 2015
1,072
593
UK
Does anyone have experience on these? I probably could build one but I am lazy and I don't have ready access any more to some of the helpful instruments I used to.

Thinking about a self sufficient one or one that could be connected to a phone or tablet.

I have a Magenta 5 (the 4 is a bit cheaper) - works fine as a basic detector.

Shop around as prices seem to vary wildly.
 

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