JRC NDR-91 User Manual

3.4
HOW
TO MOUNT
AUX CRYSTAL
By
adding the crystal to
the AUX mode
position,
the center frequency
of the
line
output can be 1.7 kHz
in case of FSK reception
and
I
.9
kHz
in FAX
reception
when setting
the frequency
indication
on the
panel
to the wanted receiving frequency,
and
this line
output
can be connected to FS demodulator
or FAX.
The
frequency
of the crystal is
456.7
kHz in FSK reception
and
456.9kH2
in FAX reception.
Since
this receiver
has one
AUX crystal
space,
one of FSK, FAX
or other
desirable
mode is
available.
Please
inform us
of
your
desirable
mode or the
frequency
of the
crystal
when ordering.
Mount
the crystal according to
the
following
procedures.
I
. Insert the crystal into
AUX
(X3)
on CMH
-379
IF
2nd
unit and solder it.
2.
Connect two holes
(AUX)
positioned
near
the
connector
(PlO)
on the
same unit by
means of the
leading wire.
3.
Connect
the speaker and
turn
on the
power.
If
the beat
sound comes out through
the speaker when
setting the
mode
to AUX, the
crystal is mounted
correctly.
Note) The beat
sound can
be easily
known
by
comparing
the noise
in AUX mode
with the noise
in DSB
mode, because the noise increases when
changing the
mode
from
DSB
to AUX.
-9 -

JRC NDR-91 Specifications

General

Brand	JRC
Model	NDR-91
Category	Receiver
Language	English