To help dancers whose hearing ability is impaired, Trailblazers
provides a wireless sound enhancement system at their dances.
Others may find the system useful in overcoming problems with hall acoustics, speaker placement, distance between the speaker and the
dancer, and ambient background noises, e.g. shuffling feet, talking, fans. Such systems are used throughout the world by many
square dance clubs, festivals, and conventions.
The system works by transmitting the caller's voice without the
music. The signal is picked up by an FM receiver (similar
in size to a pager) which is connected to an earpiece.
While several frequencies are assigned by the government for this
usage, Callerlab has designated 72.9 MHz as the primary frequency
for square dancing and 72.1 MHz as the secondary frequency.
Receivers are available with one channel (for single-audio event
such as a normal square dance) or multiple frequencies (for
multiple halls commonly used at conventions, etc.). If you plan
to dance at an event with more than one hall (or want that
versatility for the future), we recommend that you get one of
the multi-frequency models.
Trailblazers uses the:
Williams Sound PPA T27 - Compact Base Transmitter
It is compatible with many receivers from other suppliers.
For additional information on sound enhancement systems of this
type (in alphabetical order):