Technalogix TXF-50, Operating Manual

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1
Safegua
rds
2
Terms and
Warranty
3
Principl
e o
f
Operati
o
n
4
Ins
talla
tion
5
Operati
o
n
6
C
o
nt
rol Syst
em
7
RF Componen
ts
8
Power
Supp
ly
9
Maintenan
ce
10
Troubleshoo
ting
FM Exciter Module
REV 1.02 (ASY 0071)
The FM Exciter module accepts analog and digital audio inputs, processes the
audio, and then modulates the audio onto an FM carrier in the range of 87.5 to
108.0 MHz. This modulated signal is then fed into a small gain stage before
passing the signal off to the final gain amplifier stage(s).
Analog input can be balanced or unbalanced, though the former will provide a
higher quality signal. Digital audio can be sourced from AES, S/PDIF optical
(Toslink), or S/PDIF coaxial.
The following pages illustrate the schematics of the FM Exciter module.