FAX 5/10/20/30/40KW
October 28, 2013
2
‐
7
888
‐
2720
‐
001
WARNING:
Disconnect
primary
power
prior
to
servicing.
Copyright
©2013,
Harris
Broadcast
Figure 2-5 RTAC RF Sample Input on back of Exciter.
2.8.1
Installing A Non-Harris Broadcast Exciter
When
an
exciter
is
not
supplied
at
the
time
of
purchase,
the
customer
is
responsible
for
fashioning
a
cable
to
interface
the
exciter
to
the
FAX
transmitter.
There
are
some
requirements
that
the
cable
must
comply
to
to
ensure
safety
and
proper
operation.
The
exciter
interface
at
the
rear
of
the
transmitter
goes
to
the
System
Interface
Board,
see
its
schematic
diagram
for
more
information.
Also
refer
to
Section
5
of
this
manual
for
help
in
setting
the
dipswitches
for
exciter/transmitter
interface.
Warning
ENSURE THAT THE EXCITER IS SETUP FOR A MAXIMUM OF 2 WATTS PRIOR TO
CONNECTION TO THE FAX TRANSMITTER. EXCEEDING 5 WATTS COULD CAUSE
DAMAGE TO THE PA MODULES. THE TRANSMITTER MAY REQUIRE SLIGHTLY
MORE THAN 5 WATTS TO GET FULL RATED POWER FROM THE TRANSMITTER
BUT USE THIS AS A STARTING POINT TO BE SAFE.
•
J2
(J3)
Pin
4
must
always
be
grounded
and
Pins
5
and
6
must
be
unconnected
at
the
transmitter
end
to
signal
a
permanent
FM
mode
(S3
‐
8
on
System
interface/Multi
‐
unit
Interface
should
be
set
to
ON)
•
J2
(J3)
Pin
9
sends
the
Mute
command
to
the
exciter.
The
Mute
from
the
transmitter
can
be
a
logic
HI
or
LO
depending
on
the
dipswitch
setting.
See
Section
5
of
this
manual
for
dipswitch
settings
and
Sheet
8
of
801
‐
0234
‐
051
System
Interface/Multi
‐
Unit
Interface
Board
schematic
for
detailed
information
on
the
exciter
inter
‐
face.
•
If
the
exciter
has
an
external
APC
input
to
control
RF
power
this
connection
must
be
made
and
the
"Exciter
Type"
must
be
set
to
CUST
DRV
in
the
FAX
setup.
The
FAX
transmitter
will
output
a
linear
APC
voltage
in
the
range
of
0
(Minimum
Power)
to
3.3
or
4.75
VDC
(set
by
dipswitch
S2
‐
1
on
Sys
Inf
Bd)
to
the
exciter.
The
exciter
must
have
a
sufficient
APC
response
time
for
proper
operation.
If
the
exciter
does
not
have
the
exter
‐
Summary of Contents for Flexiva FAX 10KW
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