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Batbox
Duet
bat detector : user guide
Frequency Division and
Heterodyne Operation
The Batbox
is a dual-
Duet
functioning bat detector, with
both frequency division
and heterodyne
operation,
which has been
designed for
single-handed
operation.
The large LCD
back-lit display is
extremely accurate
and easy to
read at all
light levels.
A reference
button has
been incorporated
for adding voice
commentary,
whilst recording.
The unit is very easy
to use and comes
supplied with a soft
carrying case.
IMPORTANT
Please read these instructions before
using your Batbox Duet bat detector
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Table of Contents
Summary of Contents for Batbox Duet
- Page 1 A reference button has been incorporated for adding voice commentary, whilst recording. The unit is very easy to use and comes supplied with a soft carrying case. IMPORTANT Please read these instructions before using your Batbox Duet bat detector...
- Page 2 DISPLAY INITIALISATION When the Duet power is turned on, the display will show all used segments (188) for one second, followed by the software version (e.g. 2) for one second, after which the heterodyne frequency setting will be displayed.
- Page 3 2.5kHz), and also into the range of an audio recorder (MP3, minidisc, tape etc.). The Batbox Duet also measures the amplitude of the sonar before dividing by 10 and then reinstates it at the output. This creates an identical waveform to the original signal but reduces the pitch to an audible frequency.
- Page 4 BAT indicator, the display will flash ‘LobA’ for 5 seconds, and then display 0 kHz. At this point, the audio output of the Duet may still be heard, even though the display reads 0 kHz. However, you should renew the battery at this point, in order to maintain proper functioning of the detector.
- Page 5 ADVANTAGES AND LIMITATIONS OF ANALYSIS It is possible to glean a lot of information from recorded bat calls : Peak-frequency • Pulse length • Repetition rate • Social calls • Even with the heterodyne function alone, all of these factors can be assimilated, by experienced bat workers in the field, in real time, to produce accurate species identification.
- Page 6 ANALYSIS USING BATSCAN Analysis of the recordings can be quickly and easily achieved, using BatScan The BatScan computer program is designed for examination of the time and frequency characteristics of the Batbox Duet frequency division...
- Page 7 120 kHz, over a 10 second time period, is plotted using a variable color scale to represent spectral intensity. BatScan can be used for recording, either direct from the Duet or from any ’line’ source e.g. MP3, MiniDisc, tape etc. Files can be monitored and saved.
- Page 8 125 x 69 x 32 (mm) Weight: 147gm (without battery) Due to continuing improvements, specifications may change without notice. (Windows is a trademark of the Microsoft Corporation) Batbox Duet is made in England by Batbox Batbox Scott Bader Innovation Centre Wollaston •...
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