Preliminary Operating Instructions
Telex Model TT-16 Transmitter
Carefully unpack your IFB Transmitter. If there is any damage or
shortages, please refer to the “Warranty Service Information”.
Set-up Instructions:
Power: Power will be received from the supplied “wall cube”. Before applying
power, it is suggested that all input cords be plugged in and the antenna be screwed
onto the transmitter. Insert the cord plug into the transmitter before plugging in the
wall cube. The wall cube normally supplied is for 120 V AC, 60 Hz use only.
Transmitter Location: Select a suitable location for the transmitter. Try to keep a
clear, unobstructed path between the transmitter and the receiver. The transmitter
should not be located near metallic objects such as building structures and file
cabinets. Locating the transmitter on top of a file cabinet is OK. Avoid high heat sources
such as radiators .
Antenna: The antenna supplied should be the only antenna used with the TT-16. The antenna is
designed to operate in the vertical position.
Audio Input: One or both of the audio input connections can be used at the same time. A
single modulation limiter serves both inputs. If either input is not used, that input should
be “turned off”. Unbalanced only audio sources devices should be plugged into the ¼ in. (quarter
inch) Unbalanced Audio input jack located on the rear panel. Tip is “hot” and the barrel is
ground. Balanced or unbalance devices should be plugged into the “XLR” jack
located on the rear panel. Pin 1 is Common (or ground), Pin 2 and Pin 3 are audio inputs that
depend on the type of intercom selected (RTS 1, RTS 2 or Telex).
E.D.R. audio: The Telex TT-16 Transmitter is equipped with E.D.R., Enhanced
Dynamic Range (companded) audio. This mode greatly improves the Audio Signal
to Noise Ratio when the TT-16 is used with the Telex Model TR-16 receiver. The
E.D.R. mode must be selected on the transmitter and receiver to be effective. Also,
The E.D.R. Mode must be de-selected if the TT-16 is used with older equipment such as the TR-
34 receiver.