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7. Connection and Operation
This section explains a one-antenna system connected to the transceiver and an external
SWR/POWER meter.
K K K K F F F F X X X X
K K K K F F F F X X X X
R R R R E E E E A A A A R R R R
R R R R E E E E A A A A R R R R
T T T T R R R R A A A A N N N N S S S S C C C C E E E E I I I I V V V V E E E E R R R R
A A A A C C C C C C C C
A A A A L L L L C C C C
( ( ( ( S S S S E E E E N N N N D D D D , , , , T T T T X X X X G G G G N N N N D D D D ) ) ) )
7-1
Connect AC cord and coax cables as illustrated above. Connect the cable from
"SEND" to ACC or the remote terminals of transceiver, where it is marked
"SEND" or "TX GND". These terminal pins are shorted to the ground when the
transceiver is in TX/ON AIR mode. If these connections are not made, the
amplifier will not go into TX (amplification) mode. For a temporary check to the
amp, ground the STBY center pin by inserting an RCA plug whose center pin has
been soldered to the outer case of the plug with a small piece of wire.
7-2
At first, turn the ALC knob full clockwise to avoid ALC voltage being fed to the
transceiver. Application of ALC will be covered in the following Section 8. ALC
CONNECTION.
7-3
Keeping the POWER (AC mains) switch off, check the SWR of your antenna by
keying the transceiver to TX mode (CW or RTTY mode). Monitor the SWR with
an external SWR/Power meter. If SWR is 1.5 or higher at band center, the
S S S S I I I I D D D D E E E E
S S S S I I I I D D D D E E E E
A A A A N N N N T T T T
H H H H L L L L - - - - 1 1 1 1 . . . . 1 1 1 1 K K K K F F F F X X X X
HL HL HL HL- - - - 550FX REAR SIDE
550FX REAR SIDE
550FX REAR SIDE
550FX REAR SIDE
S S S S W W W W R R R R / / / / P P P P O O O O W W W W E E E E R R R R
T T T T X X X X
A A A A N N N N T T T T
S S S S T T T T B B B B Y Y Y Y
R R R R E E E E A A A A R R R R
10
A A A A N N N N T T T T E E E E N N N N N N N N A A A A
M M M M E E E E T T T T E E E E R R R R
A A A A N N N N T T T T
I I I I N N N N P P P P U U U U T T T T
A A A A C C C C
A A A A L L L L C C C C
S S S S I I I I D D D D E E E E
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