Heathkit GR-54 - Operation (Continued); Rear Panel Connectors; Reception Modes

ST
eter,
CW Key - Used for code practice only, Remove
the jumper wire and connect the leads from your
CW key to the terminal strip, Replace the jumper
wire to restore Receiver operation,
Phones or Ext Spkr - For using an external
speaker or headphones, A phone plug is provided
for use with your speaker or headphone leads
{see Figure 4),
Ci) prepare THE END GF THE CABLE AS SHOWN,
THE OTHER END OF THE CABLE GOES TO
THE EXTREME EXTERNAL SPEAKER,
@ Z}JSOLDER THE SHIELD LEAD AND THE CENTER LEAD TO THE
PHDNE JACK. THEN PINCH THE
CLAMPS AROUND THE CABLE. A, |
SOLDER
Figure 4
Ant - For connecting the external antenna that is
necessary
for
operation
on
Bands
A,
C,
Dand
E
and
better
reception
on
Band
B,
A
phono
plug
is
provided for connecting to the antenna lead-in,
&
With the M +h in the AM position, stations
on Bands A, B, C, >. or E can be tuned in with
the Main Tuning dial, Au other controls should be
' set as described in the Operation under Front
Panel,
+
USB-LSB-CW OPERATION
USB
(upper
sideband)
and
LSB
(lower
sideband)
Signals
are
normally
found
at
the
following
lo-
cations
in
the
amateur
radio
bands,
USB
signals
are
found
on
Band
E
at
the
following
positions
on
the
Main
Tuning
dial:
20
meters
(14
me
to
14,35
me),
15
meters
(21
mc
to
21,45
mc),
10
meters
(28
mc
to
29,7
mc).
CW-KEY OPERATION
ao
LSB
signais
are
found
on
Bands
c
and
D
at
the
following
positions
on
the
Main
Tuning
dial:
BAND C 8&0 meters (2.5 me to 4 mc}. BAND D
ee wr AAR eg te SE OL OE sel sy hseriitay Ly
40 meters (7 mc to 7,3 mc),
If
the
BANDSPREAD
control
is
used
when
tuned
to
a
USB
or
LSB
signal,
the
pitch
of
the
tone
that
is
heard
will
vary
as
follows:
LSB: As the Bandspread dial pointer moves
toward the 10 position, the pitch of the tone
will gradualiy get lower,
USB: As the Bandspread dial pointer moves
toward the 10 position, the pitch of the tone
will gradually get higher,
ontinuous
wave}
can
be
received
in
either
CW (ec
the USB or LSB position,
( } Remove the bare wire from between the
screws
of
the
terminal
strip
on
the
rear
panel,
( } Connect a CW key to the terminal strip as
shown in Figure 5, Press the key down and
tune in a weak AM station,
MUM <
R RE
‘+. .< C
c
c r
ow |
a
Figure 5 .