Transducers are generally calibrated using triple reciprocity or by re
ference to a standard. In the case where the transducer is acting as a
transceiver, backscattering measurements from tragets with known scat
tering characteristics can be employed. In the present study the refle
cted component of the band limited impulse response of a sphere is use
d to calibrate a broadband transceiver, and comparisons are made with
self reciprocity measurements using the reflection from an air - water
interface. Both these results are compared with a calibration curve f
or the transducer obtained using the reference method. The advantage o
f using a target of known scattering properties is the transceiver cal
ibration can be readily and repeatedly checked, and any changes can be
accommodated into the measurement program.