Yaesu FTDX5000 CAT BOOK, Operating Manual

Page: 16 / 148

Page 14 FT
DX
5000 O
PERATING
M
ANUAL
I
NSTALLATION AND
I
NTERCONNECTIONS
I
NTERFACING TO
O
THER
L
INEAR
A
MPLIFIERS
N
OTE
ˆ The TX/RX switching in the linear amplifier is con-
trolled by switching components in the transceiver. The
relay circuit of the
FT
DX
5000
used for this switching
is capable of switching AC voltage of 100 Volts at up
to 300 mA, or DC voltages of 60 V at 200 mA or 30 V
at up to 1 Amp. To activate the amplifier switching
relay, set Menu item “
172 TGEN ETX-GND ” to “
EN- EN-
EN- EN- EN-
ABLE ABLE
ABLE ABLE
ABLE
”.
ˆ The specified range for ALC voltage to be used with
the
FT
DX
5000 is 0 to –4 Volts DC.
ˆ Amplifier systems utilizing different ALC voltages will
not work correctly with the
FT
DX
5000 , and their ALC
lines must not be connected if this is the case.
GND GND RELAY ALC
AC FUSE GND
RF IN RF OUT
A
N
T
1
~
A
C
I
N
A
N
T
1
A
N
T
2
IN
P
U
T
1
T
X
G
N
D
G
N
D
G
N
D
E
X
T
A
L
C
ANTENNA Cable
5
0
M
H
z
A
n
te
n
na
H
F
A
n
te
nn
a