Icom IC-751A - Section 9 Other Functions; Vswr Readings; Wwv;Wwvh Reception

SECTION 9
OTHER
FUNCTIONS
9-1
VSWR
READINGS
9
-
2
WWV/WWVH
RECEPTION
The
IC-751 A
has a
built-in
VSWR meter
to
check antenna matching
as an aid
in avoiding problems
caused by
high VSWR.
1
)
Set
the METER SWITCH
to "Po".
2)
Select the
RTTY
operating mode.
3)
Place the TRANSMIT/RECEIVE SWITCH at
TRANSMIT.
4)
Adjust the
RF POWER CONTROL located on the
front panel
to
place the
meter needle at "SET" on the
SWR scale.
5)
Set the
METER
SWITCH to
"SWR". Read
the
VSWR
from the
SWR scale.
NOTE;
Always use a 50 ohm
antenna system in order to obtain
full output
power and
to
avoid possible damage to
the
transmitter.
,
.
The signal from radio station WWV or WWVH may be used
for
alignment of
a
frequency counter, the marker oscillator or the
fre-
quency display.
1)
Select the
10MHz
band using either the HAM BAND
or
GENERAL
COVERAGE mode.
2)
Push the AM SWITCH.
3)
Use the
TUNING CONTROL to select lO.OOO.OMHz.
Reception
of WWV/WWVH
is
also possible on
2.5,
5
and
15MHz.
Use
the frequency which has the strongest
signal
at
your location.
Refer
to
SECTION
12-3
ADJUSTMENTS
for further information.
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