Interfacing To Ther Inear Mplifiers - Yaesu FT DX 3000 Operating Manual

i
nstallation anD
i
n
ote
he pin pin
is a transistor open collector circuit. It is capa le of
handling positi e relay coil oltages up to
at m or
multiple linear amplifiers for different ands you
must pro ide e ternal and s itching of the
relay control line from the
at the LINEAR jack.
he specified range for
the FT 3000 is to
DX
mplifier systems utili ing different
will not work correctly with the FT
their lines must not e connected if this is the
case.
Note
When the FC-40 is connected to the FT
pin of the TUNER jack and the
LINEAR jac pin are common circuits.
herefore the ma imum oltage at
of the LINEAR jac must not e ceed
Page 14
i
nterconnections
o
nterFAcing to
of the LINEAR jack
at . If you plan to use
inear
line
oltage to e used ith
olts .
oltages
3000 and
DX
3000
DX
pin
.
l A
ther ineAr MpliFierS
i n !
MportAnt ote
o not e ceed the ma imum oltage or current rat-
ings for the
EAR jack. This line is not compatible with negative
oltages or
ost amplifier control relay systems re uire only
lo oltage current s itching capa ility typi-
cally
transistor in the FT
such amplifiers.
F T
DX
GND
EXT ALC
pin pin of the LIN-
oltages of any magnitude.
at m and the s itching
3000 will easily accommodate
DX
30 00 O M
peraTing
TX GND
anual