Interfacing To Other Linear Amplifiers - Yaesu FT DX 9000 CONTEST Operation Manual

I I I I I
NST NST NST ALLA ALLA ALLA TION ALLA TION TION TION AND AND AND AND
NST NST ALLA TION AND
I
NTERFACING TO
The TX/RX switching in the linear amplifier is controlled by switching components in the transceiver. The
relay circuit of the FT
Volts at up to 300 mA, or DC voltages or 60 V at 200 mA or 30 V at up to 1 Amp. In order to engage the
switching relay, use Menu item "TX GNRL 175 EXT AMP TX-GND" within the "TX GNRL" Menu
Group; set this Menu selection to "ENABLE" to activate the amplifier switching relay.
The specified range for ALC voltage to be used with the FT
Amplifier systems utilizing different voltages will not work correctly with the FT
their ALC lines must not be connected if this is the case.
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I I I I I
NTER CONNECTIONS NTER NTER CONNECTIONS CONNECTIONS CONNECTIONS
NTER NTER CONNECTIONS
O
THER
ANTENNA CABLE 50
（ Ω）
N N N N N
9000 Contest used for this switching is capable of switching AC voltage of 100
DX
L A
INEAR MPLIFIERS
RF OUT RF IN
GND
O O O O O TE TE TE TE TE
9000 Contest is 0 to –4 Volts DC.
DX
FT 9000 C
DX
FUSE AC
GND ALC GND RELAY
9000 Contest, and
DX
O M
ONTEST PERATION ANUAL