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4-1.
RECEPTION
After
connecting
the
power
cord,
antenna,
microphone, key etc., set controls following Table 1.
Turn the POWER switch ON.
Pilot lamps in the meter,
sub-dial pointer, band switch and FIX CH switch will light
up,
indicating
the
transceiver
is ready
for
operation.
Because
of solid-state design, the transceiver can be put
into operation immediately after power is applied.
Next, adjust the controls according to Table 2.
Note:
The DRIVE knob does not function during reception.
Table 1. Front Panel
POWER
Switch ......... OFF
Standby Switch ..
. REC
METER
Switch
iS)
NB Switch
.. OFF
RIT Switch ....
.. OFF
R-DX Switch .
. OFF
MODE
Switch ........... As desired.
REPEATER
Knob
«(OFF
RIT Knob....
0
VOX
Knob.
. Fully counterclockwise
SQUELCH
Knob .
. Fully counterclockwise
RF GAIN
Knob...
. Fully clockwise
AF GAIN
Knob...........
Fully counterclockwise
BAND
Switch..
. Desired band
FIX CH Switch
. VFO
The foregoing settings are common
to all modes of
operation.
Each
mode,
however,
calls for special techni-
ques, which will be discussed for each of the five modes.
CW
Mode (How to Use the RIT)
With the RIT switch turned off, position the MAIN tun-
ing so the incoming CW signal will beat at 900 Hz. You will
then have zeroed your transmit frequency to the incoming
CW signal.
(Your
transmit
frequency
perfectly
coincides
with
the
transmit frequency of the other party.)
Similary, if the other party calls back with 900 Hz beat
in response to your call of the other partys transceiver is
zeroed.
Should the other party call back with a beat off 900
Hz, or should you want to receive with a beat of your choice,
turn on RIT switch and adjust the RIT knob to obtain the
desired beat.
INSTRUCTIONS
nascent
Table 2
Controls
Setting
AF GAIN
Turn
clockwise
for
suitable
volume.
MAIN
TUNING
RF GAIN
Adjust for clear signal.
Normally,
set
at
the
extreme
clockwise position.
When a signal
is very strong, turn counterclock-
wise for reduced gain.
SQUELCH
This
is used
for FM
operation.
Turn the knob clockwise so that
receiver noise at no-signal just dis-
appears.
With the RIT switch ON, turn the
knob in either direction to vary the
receive frequency.
Refer to Page 8 "RIT" operation.
FM Mode
Set MAIN Tuning for optimum reception.
By setting
the METER switch to the CEN position, the meter functions
as a center meter.
Turn the MAIN dial until the center meter
pointer deflects to the center scale line while receiving the
other party's signal.
In this way, your transmit frequency
will coincide with the receive frequency.
Next, set the METER
switch to the 'S" position and
the meter will indicate the strength of the incoming signal.
If, in this case, the meter pointer fluctuates in response to
the receiver audio, turn the MAIN dial a little (a few kHz) in
either direction until the meter indication is stabilized (if no
fading exists).
Since the SSB
IF is part of the ''S" meter circuit for
FM, the "S" meter provides a logarithmic indication of FM
signal strength that is free from saturation even when the in-
put signal strength is very high. This eliminates the need for
calibration of the ''S'" meter for each mode of operation
Since the IF bandwidth
is wide in the FM
mode, a
slight deviation
in frequency
does
not affect
reception.
When transmitting, however, it is necessary to be exactly on
frequency
because
the
other
party
may
be crystal
con-
trolled.
Therefore, it is advisable that you ''zero" the other
party by adjusting the MAIN tuning for a "0" indication on
the center meter.
If the ''S" meter continues to fluctuate or if satisfactory
audio output is not obtainable, it is very likely that the other
party is sending SSB.
You can easily check this by turning
the MODE
switch to USB or LSB position.
11
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