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Re: Bat detector

Subject: Re: Bat detector
From: "Raimund Specht" animalsounds
Date: Mon Nov 20, 2006 12:51 am ((PST))
Hi Martyn,

You might also have a look at our UltraSoundGate system
( This is also a
laptop-based system, which has the advantage that it provides a
real-time spectrogram display. It is made of quality components
(full-metal housing) and comes with a very sensitive microphone that
has a flat frequency response up to about 180 kHz.

Another less expensive solution would be to attach our CM16/CMPA P48
ultrasonic microphone
( to your Sound
Devices 722 recorder. This microphone employs the same microphone
capsule as the above computer-based UltraSoundGate system. The
drawback of this solution would be that you would have no acoustic or
visual feedback while recording inaudible bat echolocation calls
(except of the recording level meter on your recorder). Another
problem might be the limited bandwidth of the recorder (ultrasonic
sound components above about 60...70 kHz might produce unwanted
aliasing effects).

Sample recordings made with the UltraSoundGate 116-200 can be found at and


Raimund Specht
Avisoft Bioacoustics

--- In  "Martyn Stewart" <>
> Having recorded thousands of birds and animals over 35 years I am
now ready
> to enter the wonderful world of bats, which brings me to the
question what
> are the best bat detectors out there?
> I often see the plastic things that are touted around the web etc
but has
> anyone here any experiences with any of the units? I am looking at the
> Pettersson D1000X Bat detector, I want something of quality and
> after all, you look for the best recorders like the sound devices
> So come on lads and lassies, what ya got? What ya know?
> I am open to abuse :)
> Martyn
> ****************************************
> Martyn Stewart
> Bird and Animal Sounds Digitally Recorded at:
> Redmond. Washington. USA
> N47.65543 W121.98428
> e-mail: 
> Tel: 425-898-0462
> Make every Garden a wildlife Habitat!
> *****************************************

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