Using The Automatic Antenna Tuner; Peration - Yaesu FT DX 3000 Operating Manual

u
sinG the
he utomatic ntenna uner hereinafter referred to as the
hm load for the final amplifier stage of the transmitter.
on the FT 3000.
DX
A :
dvice
ecause the of the FT
cei er at the station end of your coa ial ca le feedline. It does not tune the
hen designing and uilding your antenna system
at the antenna feed point.
he of the FT 3000 includes
DX
mateur and so that each and has at least one setting preset for use on that and. he remaining
reser ed for the most recent tuning points for uic fre uency change ithout the need to retune the
he in the FT 3000 is designed to match impedances
DX
responding to an
hip antennas along ith random length ires and the
pedance matching range of the
. se the ain uning
the desired operating fre uency
band.
ress the [ TUNE button momentarily to place the
.
in the transmit line no adjustment tuning
occur yet . he TUNER icon
display.
q p :
uicK oint
The momentary press of the [ TUNE button will turn
the tuner on and the microprocessor
cally select the tuning point closest to the current
operating fre uency.
ress and hold in the [ TUNE button for one second
.
to begin automatic tuning. The transmitter will be en-
gaged and the TUNER icon ill lin
ing is in progress. When the optimum tuning point
has een reached the radio
and the TUNER icon ill again glo steadily in-
stead of blinking).
. o disconnect the
the [ TUNE
utton momentarily. he TUNER
icon ill turn off confirming that the
turned off. In the ff mode the transcei er ill e
directly connected to the coaxial cable connected to
your antenna and ill respond to
ance is present at the station end of the coax.
A :
dvice
he circuit is located et een the final amplifier
and the rear panel antenna jac reception is not affected
y the .
Page 64
a
utomatic
3000 is located inside the station it only adjusts the impedance presented to the trans-
DX
memories for tuning data. le en of these memories are allocated one per
of or less on the through
.
Atu o
ial no to set the radio to
ithin the mateur
ill appear in the
ill automati-
hile tun-
ill return to recei e
from the transmit line press
has een
hate er imped-
a
ntenna
uilt into each FT
e recommend that the
e recommend that e ery effort e made to ensure a lo
ithin the range of
meter amateur ands. ccordingly simple non resonant
antenna on most ands may not e ithin the im-

perAtion

[ TUNE ] Button
ill
q p :
uicK ointS
s shipped from the factory only one
point is sa ed on each mateur and. his
ri ed during the final alignment and performance erifi-
cation stages on the production line.
n :
ote
lease chec the operating fre uency efore eginning
the tuning process to e sure you are not interfering
ith others ho may already e using the fre uency.
t :
erMinology
ntenna uner
ma es a note of the selected tuning capacitors and
inductors and stores the data for each
in which tuning has occurred. This eliminates the need
to re tune e ery time you return to a fre uency on hich
you have already completed the tuning process.
FT
DX
t
uner
3000 is designed to ensure a
DX
e used hene er you operate
at the antenna feed point itself.
memories are
. hms to
emories he microprocessor of the
3000 O M
peraTing
.
hms cor-
alignment
as memo-
indo
anual