4
THAT-2 Telephone Handset Audio Tap
Handset Type Switch
The three position switch on the
front of THAT-2 selects the type of
microphone that is in the handset
of your telephone. When you push
the Line In button in, THAT-2
replaces the handset microphone
signal with a circuit that must match
the characteristics of the handset
microphone.
Operation
The Handset Type switch can cover
the main three microphone types, but
keep in mind that there is no industry
standard for microphone types or
characteristics and therefore we
cannot guarantee a perfect match
with every telephone. There is no
way to tell which type of mic is in
your telephone handset. Simply use
the position that sounds best without
clipping or signal break-up. The
balanced input XLR is wired:
A B C
Electret Dynamic Carbon
Note: Not all telephones are built alike so we cannot guarantee THAT-2 will work
with every handset design available. We designed the interface to work with most
popular designs.