PROFESSIONAL
WIRELESS IFB SYSTEM
INTRODUCTION
WHAT IS THE TELEX WIRELESS
IFB SYSTEM?
Transmitter:
The transmitter generates and
amplifies an RF (Radio Frequency) carrier
signal, modulates this carrier with the micro-
phone signal, and radiates the modulated RF
carrier.
Receiver:
The FM VHF receiver is tuned to
the frequency of the transmitter. The receiver
picks up the radiated RF signal from the trans-
mitter through the antenna and converts the
RF signal into audio voltages for use with an
earphone, headphone, button receiver,
neckloop, etc. The receiver frequency must be
matched to the transmitter frequency.
WHAT FREQUENCY BAND DOES
THE TELEX SYSTEM OPERATE
IN?
The Telex Systems features a synthesized
transmitter and a synthesized receiver operat-
ing in the VHF Band between 60-72 MHz.
See Table 1 for standard frequencies avail-
able.
Up to five transmitter channels can be utilized
by any number of receivers in any given area.
-1-
Figure 1
Block Diagram of Typical Wireless IFB System
