The AT100 is a small, portable, ultrasonic transmitter that is designed
to aid field research. It employs a wide bandwidth ultrasonic element
along with an efficient wideband amplifier to produce an impressive
100dB SPL transmit capability in a small, light-weight package.
The AT100 is designed to be operated by a Windows based lap-top
computer. It connects a lap-top through a high speed USB 2.0
interface. The bundled GTools playback
software allows the user to select between prerecorded files and play
them back through the ultrasonic transmitter. The software supports the
industry standard WAV file format and works with files generated by
SPECTíR as well as others.
The AT100 ultrasonic transmitter is designed for low power operation.
The unit itself requires only 2 Watts of power and it is capable of
operating off of power supplied through the USB interface. Optionally,
the AT100 can accept powered from an external 9 to 12 Volt source or
One of the potential applications is bat calling. It is well known by
bat researchers that bats will come to investigate and aid other bats
which are in distress. Bat netting projects are more productive after
catching a few bats because the distress calls, of those caught, attract
even more bats. Playing back distress calls has the potential to
increase bat activity and increase the productivity of your netting
projects and field surveys.
spec sheet (PDF 229K)