Yaesu FT-1000 User manual

FT-1000
OPERATING
MANUAL
YAESU MUSEN CO., LTD.
C.P.0.BOX 1500, TOKYO, JAPAN
YAESU U.S.A.
17210
Edwards
Rd.
Cerritos,
California,
90701
U.S.A.
YAESU EUROPE B.V.
Snipweg
3.
1118AA
Schiphol
The
NETHERLANDS

FT-1000 Operating Manual
Errata & Addendum
External ALC Voltage
On page 19, in the description of the EXT
ALC Phono Jack (Item 12), the range of the
voltage to be provided by a linear amplifier to
reduce excitation is shown with the wrong
polarity: the correct range is 0 to -4V.
CAT System Addendum
for Revision 6.0+ EPROM
To improve the versatility of external com-
puter control of the FT-1000, a facility to read
back only the current memory number, or a
16-byte block of VFO or specified memory
parameters has been added to EPROM Q5003
on the Control Unit, from revision 6.0.
The installed EPROM revision number can
be non-destructively checked by holding the
1 and 3 keys at the upper corners of the key-
pad while switching on. The revision number
appears after the display test and manufac-
turer ID display. If your revision is below 6.0,
contact your Yaesu dealer for availability and
price of the upgrade.
Revision 6.0 EPROM firmware adds two
optional parameter bytes (#’s 1 and 4) to the
Update command: Parameter Byte 1 selects
the type (and quantity) of data to be returned
by the transceiver, and Parameter Byte 4
specifies, when necessary, which memory to
read. This table indicates the possible pa-
rameter values, and what they do:
same as
, Current or
Apel aa Last-Selected
Memor
16-Byte structure for
P1=2 Current Operation
‘either a VFO or Mem)| See the Table
Two
16-Byte
on
page
38
of
structures
(32
bytes)
|
the
Operating
for Main & Sub VFOs Manual
Pi=4 and |16-Byte structure for
P4=1 ~ 63h_|memory number P4
Table Notes:
¢ Software written for previous firmware revi-
sions may not be compatible with revision 6
and later (if the Update command is sent
with non-zero parameters). Such software
can be made compatible simply by zeroing
the Update command parameters.
e Parameter Byte 4 is significant only when
requesting memory data (with Parameter
Byte 1 = 4). Otherwise, Parameter Byte 4 is
ignored by the transceiver.
Note to Programmers:
Yaesu models FT-1000, FT-990 and FT-890
all use similar, although not identical, pro-
- gramming interface commands. All of these
models share the Read Flags command
(OFAh), which returns 5 bytes, the last two of
which may be used to uniquely identify the
transceiver model:
“Read Flags”
Model Update Bytes 4 and 5
FT-1000 10h 00h
FT-990 09h 90h
FT-890 08h 41h
Y
YAESU
E2710101(204w- 0K)

I, General Information - General Description
General Description
The FI-1000 is a high performance hf transceiver
providing dual-channel reception on all frequencies
between 100 kHz and 30 MHz, adjustable transmitter
power output of up to 200 watts on all hf amateur radio
bands in CW, SSB, FM, RTTY and Packet (F1 and F2)
modes, and up to 50 watts carrier in AM mode. A
heavy-duty AC power supply, automatic antenna tuner
and iambic electronic speed keyer/bug simulator are
supplied,. built in, as standard accessories, along with
eight IF filters for the 2nd and 3rd IFs of the main and
sub receivers.
Inside the FT-1000, modular construction with ex-
tensive use of surface mount components on composite
epoxy boards allows greater RF circuit isolation and
higher reliability than previous manufacturing techni-
ques. A squirrel cage blower in the heart of the trans-
ceiver replaces the usual rotary fan to cool the
interdigital final heatsinks quietly and efficiently.
For exceptionally clean receiver and transmitter
performance, the FT-1000 incorporates two 10-bit and
three 8-bit Direct Digital Synthesizers for its local
oscillators (all driven by a single TCXO master oscil-
lator), and the operator’s choice of front end RF ampli-
fication (using four FETs in a double push-pull,
constant-gain stage), direct feed to the double-balanced
quad FET ring mixer, or three levels of RF attenuation
in 6-dB steps. Two receiver front ends, IF strips and
vfos allow simultaneous reception and display of two
different frequencies, even in different modes and with
different IF bandwidths. Receiver audio can be com-
pletely or partially mixed, or monitored separately in
each ear. With independent bandwidth and mode selec-
tion for each receiver, plus an option for separate anten-
nas and bandpass filters, a variety of diversity reception
modes are available when both vfos are tuned to the
same frequency.
Six microprocessors in the FT-1000 are program-
med to provide the simplest possible control interface
for the operator, even for previously complex applica-
tions like diversity reception and hf packet. Two dual-
speed tuning knobs allow simple independent adjust-
ment of the two yfos at all times. Fine tailoring of the
IF passband is made possible with pushbutton crystal
filter selection, concentric IF width and shift controls,
and an IF notch filter. Separate keys are also provided
for band selection, and each band key accesses two
subband yfo frequency/mode/filter settings per band,
so you can keep separate vfo settings for two different
parts of the band, on all bands. In addition, 99 scanable
memories are provided, each of which stores its own
mode and IF filter selection, in addition to frequency,
clarifier offset and scan status. The built-in automatic
antenna tuner includes 39 memories of its own, auto-
matically storing antenna matching settings for quick
automatic recall later. Of course the front panel keypad
can also be used to key in operating frequencies direct-
ly,
Special installable options for the FT-1000 include
the BPF-1 Bandpass Filter Module to allow dual recep-
tion on separate antennas (and any hf frequencies), the
TCXO-1 Temperature Controlled Crystal Oscillator
module for precision stability over an expanded tem-
perature range, and of course a wide selection of IF
filters to complement the eight already installed as
standard, External options include the DVS-2 Digital
Voice Synthesizer for continuous recording and instant
playback of received signals, and pushbutton pre-
recorded transmissions; the SP-5 External Loudspeak-
er with audio filters and optional LL-5 Phone Patch
module; the YH-77ST Stereo Headset; and the MD-
Icg Desktop Microphone and MH-1pg Hand Micro-
phone.
Before connecting the power cord, you should read
the Installation section carefully, heeding the warnings
in that section to avoid damage to the set. After instal-
lation, please take time to work through the Operation
chapter, referring to the Controls & Connectors chapter
as necessary for details. These chapters are intended to
be read while sitting in front of the FT-1000, so you can
try out each control and function as they are described.
page I

I. General Information - Specifications
0 SSA $7 rete aS 6 SE ES
Specifications
General
Receiving frequency range: 100 kHz — 30 MHz
Transmitting frequency ranges:
160-m band, 1.5 to 2.0 MHz
80-m band, 3.5 to 4.0 MHz
40-m band, 7.0 to 7.5 MHz
30-m band, 10.0 to 10,5 MHz
20-m band, 14.0 to 14.5 MHz
17-m band, 18.0 to 18.5 MHz
15-m band, 21.0 to 21.5 MHz
12-m band, 24.5 to 25.0 MHz
LO-m band, 28.0 to 29.7 MHz
Frequency accuracy: < + 0.5 ppm at room temperature
Frequency stability: <+ 2 ppm from 0 to +50°C
(except FM, <+ 200 Hz),
<+0.5 ppm from -10 to +60°C w/TCXO-1 option
(FM <+ 150 Hz from 0 to +50°C)
Emission modes: LSB/USB (J3E), CW (A1A),
FSK (J1D, J2D), AM (A3B), FM (F3E)
Basic frequency steps:
10 Hz for J3E, AlA and J1D;
100 Hz for A3E, F3E and J2D
Antenna impedance: 16.5 to 150Q, 50Q nominal
Supply voltage:
100, 110, 117, 200, 220 or 234 VAC, 50/60 Hz
Power consumption (approx.):
95 VA receive, 1050 VA for 200 watts transmit
Dimensions (WHD): 420 x 150 x 375 mm
Weight (approx.): 25.5 kg. (51 lbs)
Transmitter
Power output:
adjustable up to 200 watts (50 watts AM carrier)
Duty cycle: 100% @ 100 watts,
50% @ 200 watts (FM & RTTY, 3-minute tx)
Modulation types
SSB: Balanced, filtered carrier
AM: Low-level (early stage)
FM: Variable reactance
FSK: Audio frequency shift keying
Maximum FM deviation: + 2.5 kHz
FSK shift frequencies: 170,425 and 850 Hz
Packet shift frequencies: 200, 1000 Hz
Harmonic radiation; at least 50 dB below peak output
SSB carrier suppresion:
at least 40 dB below peak output
Undesired sideband suppresion:
at least 50 dB below peak output
Audio response (SSB):
not more than —6 dB from 400 to 2600 Hz
page 2
3rd-order IMD: —36 dB @ 150 watts PEP,
~—31 dB @ 200 watts PEP, or better
Microphone impedance: 500 to 600 Q
Receiver
Circuit type:
quad-conversion superheterodyne
(triple conversion for FM)
Intermediate frequencies:
73.62 and 8.215 MHz, and 455 and 100 kHz
Sensitivity:
(With preamp on, for 10 dB S/N, 0 dBu = 1 pV)
Frequency => 250-500 | 05-18 | 18-30
Mode (BW) kHz MHz MHz
oe eee
29-MHz FM
(for 12 dB SINAD}
Selectivity (-6/-60 dB):
Dynamic range (typical):
108 dB (@50 kHz, 500-Hz BW, RF amp off)
Squelch sensitivity:
1.8 — 30 MHz (CW, SSB, AM): < 2.0 pV
28 — 30 MHz (FM): <0.32 LV
IF rejection (1.8 — 30 MHz):
80 dB or better
Image rejection (1.8 — 30 MHz):
80 dB or better
IF shift range: +1.12 kHz
Maximum audio power output:
2 watts into 4Q with <10% THD
Audio output impedance: 4 to 80
Specifications are subject to change, in the inter-
est of technical improvement, without notice or
obligation.

1. General Information - Accessories & Options
Accessories & Options
Supplied Accessories
@ AC Cord 9017780 l ® '4-inch, 2-contact Plus
C107 0090034
ad
@ Spare Fuses ®@ RCA Pius
___ BA (0000039) or 15A (Q0000008 2 | -1447 — (PO0S0544)
eo * * ap”
>
¥
ca
‘
®@ ';-inch, 3-contact Plug : @ 4-pin DIN Plug
S-H3606 __(PO030008: E4-7018- 00 (P0090724) |
@ '-inch, 3-contact Piug 7 @ 5-pin DIN Plug
C110 (P0090726) | __E5-701B-00__ (P0090725) ]
Options
BPF-1 Bandpass Filter Module
Consisting of 11 receiver bandpass filters and its
own switchable attenuator network, the BPF-1 allows
the sub receiver in the FT-1000 to be tuned to any
frequency independently from the main receiver, using
4 separate antenna. The attenuator control on the BPF-1
can be used either to control sub receiver attenuation
separately from the main receiver, or be overridden so
that the FT-1000 front panel attenuator knob controls BPF-|
both receivers’ attenuators in parallel.
TCXO-I High Stability Master Reference
Oscillator
For special applications and environments where
extra frequency stability is essential, such as for long-
term hf packet monitoring under wide temperature
variations, the TCXO-1 provides +0.5-ppm stability
from —10 to +60°C for the master reference oscillator. TCXO-|
page 3

1, General Information - Accessories & Options
MD-Ics Desk-Top Microphone
Designed especially to match the electrical and cos-
metic features of the FT-1000, the MD-Icg has 600-Q
impedance, and includes up/down scanning buttons
and a large PTT switch with latch.
SP-5 Loudspeaker with Audio Filters
and LL-5 Phone Patch Option
Selectable audio high- and lowpass filters together
with a large loudspeaker complement the superb audio
characteristics of the FT-1000 with your choice of 12
different audio filtering combinations. Two input ter-
minals are provided for multiple transceivers, with a
front panel switch to select between them. A (mon-
aural) phone jack is provided on the front panel to take
advantage of the audio filters with headphones.
With the optional LL-5 Phone Patch Unit installed
in the SP-S, the FT-1000 can be patched to the public
telephone network. The LL-5 includes a hybrid trans-
former circuit to assure proper impedance matches, and
front panel gain controls and level meter to set proper
audio levels on the telephone line.
YH-77ST Lightweight Stereo Headphones
Dual samarium-cobalt transducers with sensitivity
of 103dB/mW (+2dB, @1 kHz, 35Q) provide the per-
fect match for the FT-1000. During dual receive with
the: YH-77ST, one receiver can be monitored in each
ear, allowing easy separation of the signals from the
two receivers (or the audio can be mixed, if desired).
DVS-2 Digital Voice System
Serving as either a continuous receiver recorder for
instant pushbutton playback, or microphone audio re-
corder for multiple on air playback, the DVS-2 applies
the advantages of random-access solid-state digital
memory to serious communications. All data is stored
electronically, with no moving parts except your finger
and the pushbutton. More information is on page 33.
FIF-232C CAT System Interface
To control the FT-1000 from an RS-232C serial port
of an external personal computer, use the FIF-232C to
convert the TTL levels required by the transceiver to
the RS-232C levels required by the serial port. A cable
is included for connection between the transceiver and
the
FIF-232C
(the
cable
to
the
computer
must
be
pro-
vided separately). The FIF-232C includes its own AC
power supply.
DVS-2 e&
IF Crystal Filter
IF Crystal Filter Options
Five crystal filters may be installed in the 455-kHz
3rd
IFs
of
the
FT-1000,
to
function
in
cascade
with
the
eight installed at the factory.
XF-C (XF-455K-262-01)
Main receiver 2.4-kHz BW (for all modes except FM)
XF-D (XF-455K-202-01)
Main receiver 2.0-kHz BW (for all except AM & FM)
XF-E (XF-455K-501-01)
Main receiver 500-Hz BW (for CW, RTTY & Packet)
XF-F (XF-455K-251-01)
Main receiver 250-Hz BW (for CW & RTTY)
XF-455MC
Sub receiver 600-Hz BW (for CW only)
pege
$$
—$RK$
<<
————

2. Station Installation - General Setup & AC Power
pe
EEN
ES
end
a
ee
General
Setup
& AC
Power
Preliminary Inspection
Inspect the transceiver thoroughly immediately
upon opening the packing carton. Check to see that all
controls and switches work freely, and inspect the cab-
inet for any signs of damage. Make sure the accessory
fuses and plugs pictured on page 3 are included. If any
damage is found document it completely, and contact
the shipping company (or dealer, if you purchased it
over the counter) right away. Save the packing mat-
erials in case you need to return the set for service.
If you have purchased optional internal accessories
separately, install them as described in Chapter 6 (page
40).
Power Connection
The FT-1000 is designed for operation from AC
voltage only. Before connecting power, check the label
on the rear panel which indicates the AC mains voltage
for which your transceiver is currently set. If the volt-
age on this label does not match your AC mains volt-
age, the taps on the primary of the power transformer
in the transceiver must be rewired, and the fuse may
have to be changed. This requires only a screwdriver
and is not difficult (see below), but you should make
sure the transformer is wired correctly before connect-
ing power. If you have any doubts about the procedure,
contact your dealer for assistance.
CAUTION
Permanent damage will result if improper AC
supply voltage is applied to the transceiver.
your warranty does not cover damage caused
by application of improper supply voltage, or
use of an improper fuse.
We also recommend that you open the fuse holder
on the rear panel, and make sure that the fuse is correct
for your mains voltage:
AC Mains Voltage Fuse Capacity
100, 110 or 117 15A
200, 220 or 234 8A
After making certain the AC voltage for which the
transceiver is set matches your mains voltage, and that
the correct fuse is installed in the fuse holder, connect
the AC power cord to the 3-pin AC jack on the rear
panel. Wait until all other transceiver interconnections
have been made before connecting the other end of the
power cord to the wall outlet .
Changing
the
Power
Transformer
Primary
Winding
for
Different
AC
Voltages
* Make certain that all cables are disconnected from
the transceiver.
*
Remove
the
three
screws
from
each
side
of
the
transceiver,
and
two
from
the
top
edge
of the
rear
panel,
Remove
the
top
cover.
*
On
the
left
side
of
the
power
transformer,
locate
the
clear
plastic
insulating
cover
with
voltage
markings.
Remove
the
four
screws
affixing
this
plate,
and
remove
it
and
the
plastic
sheet
underneath.
*
AC
from
the
power
cable
is
provided
by
the
grey
and
white
wires
connected
to
the
lower
row
of
terminals,
and
for
voltages
of
117
V
and
below,
two
jumpers
are
also
used.
Reconnect
these
wires
for
the
desired
voltage
according
to
the
diagram
at
the
right.
Do
not,
under
any
circumstances,
change
the
wiring
of
the
upper
row
of
terminals.
* Replace the insulating sheets and their four screws,
and the top cover and its eight screws.
- p> _____ oA L0V.
100V
- net
ad ——e o2
- od - = . -~-c *%
TTL 1000
iS ea “SITE
ser re | “Tv
ACIOOV
ACLIOV
IMPORTANT!
If you change the primary transformer taps,
make
sure
to
also
change
the
voltage
marking
on
the
label
on
the
rear
panel
to
match
the
new
voltage
setting.
Also,
if
you
change
the
trans-
former
taps
for
operation
from
117V
or
below
to
220V
or
above,
or
vice-versa,
you
must
change
the
fuse
in
the
fuse
holder,
as
indicated
in
text
above.
Do
not
use
slow-blow
type
fuses.
Page 5

2.
Station
Installation
-
General
Setup
&
AC
Power
Transceiver Location
To assure long life of the components, a primary
consideration
in
setting
up
the
FT-
1000
is
providing
for
adequate
ventilation
around
the
cabinet.
The
cooling
system
of
the
FT-1000
must
be
free
to
draw
cool
air
in
at
the
lower
rear
of
the
transceiver,
and
to
expel
warm
air
out
of
the
upper
rear
panel.
Do
not
place
the
trans-
ceiver
on
top
of
another
heat-generating
device
such
as
a
linear
amplifier,
and
do
not
place
equipment,
books
or
papers
on
top
of
the
transceiver.
Also,
provide
a
few
centimeters
of
space
on
either
side
of
the
transceiver,
if
possible.
Avoid
heating
vents
and
window
locations
that
could
expose
the
transceiver
to
excessive
direct
sunlight, especially in hot climates.
Grounding
For
protection
from
shock
and
proper
performance,
connect
the
GND
terminal
on
the
rear
panel
to
a
good
earth
ground,
using
a
heavy
braided
cable
of
the
short-
est
length
possible.
All
other
station
equipment
should
be
connected
to
the
same
grounding
cable,
as
close
together
as
practical.
If
you
use
a
computer
with
or
near
the
FT-1000,
you
may
need
to
experiment
with
ground
wiring
to
suppress
computer
noise
in
the
receiver,
Adjusting the Front Feet
The
two
front
feet
of
the
FT-
1000
can
be
set
in
either
of
two
positions.
By
turning
the
knurled
ring
around
a
(retracted)
foot
clockwise,
the
middle
of
the
foot
will
extend
about
one
centimeter
.
Turn
the
ring
as
far
as
it
will
go
(about
1/4-turn)
to
lock
the
extended
foot
in
place.
To
retract
an
extended
foot,
turn
the
knurled
ring
counterclockwise
!/4-turn
while
pressing
on
the
center
of
the
foot.
Adjusting the Front Feet
Antenna Considerations
Any antennas connected to the FT-1000 should
have
coaxial
feedlines
with
50-Q
impedance,
and
in-
clude a well-grounded lightning arrestor, For the anten-
na connected to the main ANT jack, the automatic anten-
na tuner in the FT-1000 is capable of matching
antennas with an SWR of up to 3:1 or more on the
amateur bands to the transmitter. Nevertheless, op-
timum performance for both reception and transmis-
sion will generally result with an antenna designed to
provide a 50-Q unbalanced resistive load at the operat-
ing frequency. An antenna that is not designed for
resonance at the operating frequency may present too
high an SWR to allow proper matching with the built-in
antenna tuner, in which case the antenna itself should
be readjusted, or an outboard antenna tuner used. If the
tuner
is
unable
to
bring
the
SWR
down
to
an
acceptable
level, attempting to transmit will result in an automatic
reduction in power output and increased losses in the
feedline. Operation under such conditions is not re-
commended: it is better to install another antenna de-
signed for that band. Also, if your antenna has a
balanced feedpoint and you use a balanced feedline,
install a balun between the feedline and the ANT jack of
the transceiver,
The same precautions apply to any additional (re-
ceive-only) antennas connected to the RX ANT jack, or to
the BPF-1 (if installed), except that neither of these
antennas will have the benefit of the built-in antenna
tuner. Therefore, unless such receive-only antennas
have an impedance near 50 Q at the operating frequen-
cy, you may need to install an external antenna tuner
to obtain optimum performance.
Interconnection of Accessories
The diagrams on the following pages show inter-
connections of various external accessories, If you
have any questions on these accessories or connecting
devices
not
shown,
contact
your
dealer
for
advice.
Memory Backup
The lithium memory BACKUP switch inside the top
access
panel
is
turned
on
at
the
factory,
allowing
vfo
and
memory
data
to
be
retained
while
power
is
off.
Backup current is miniscule, so it is not necessary to
turn
the
BACKUP
switch
off
unless
the
transceiver
is
to
be
stored for an extended period.
After five or more years of operation the transceiver
may
fail
to
retain
memories,
at
which
time
the
lithium
battery
should
be
replaced.
Contact
your
dealer
for
replacement of the battery, or for instructions on how
to do so yourself.
pege
6
—_—__—KARA——————
——_—_
i

2. Station Installation - Connector Pinouts
Connector Pinouts
MIC PHONES
1) UP
2. GND
3 DWN
4 FAST
GND
6) PTT
7) GNO
a) MIC
ao
4) (ae) len) “@
SIGNAL (R)
>
“a |
GND
SIGNAL (lL
COMMON ,
_Keyer Poddle
EXT SPKR
SIGNAL (SUB)
SIGNAL (MAIN)
1) SHIFT
2 RX OUT
~ 4)|@ PTT
4 GND
PACKET
SIGNAL
DATA IN
GND:
PTT
DATA OUT
BUSY
3 GND
SERIAL OUT
SERIAL IN
PTT
S/PO
NC
ao ie (m c he) —
SD of w@ IN —
' VOICE OUT
VOICE IN
PTT
+9V
CNTL1
CNTL 2
GND
+13V
5 2) TX GND
3) GND
4 BAND DATA A
5 BAND DATA B
f) §) BAND DATA C
8 7) BAND DATA D
U LINEAR
SIGNAL
or
page 7

2.
Station
Installation
-
Connecting
External
Accessories
Connecting External Accessories
OFF ATT
cme ATT
@
®
as
ON
Be
FL-7000
200 0;°°
‘come
EXT
ALC
|AC
SUPPLIED CABLE B (T9!01296)
OPTIONAL CABLE (D400019)
SUPPLIED CABLE A (T9100980)
TELEPHONE LINE
F T-!|O00
(x2
<
(i
i)
|
See
Ox
5)
SUPPLIED
CABLE A
(T9101
407)
SUPPLIED CABLE B (T9101 280A)
page &

a
2. Station Installation - Internal Settings
ee ee ee
Internal Settings
Described here are a few internal settings you may
wish to make, as you become familiar with the FT-
1000, to tailor it to your particular station require-
ments. Be careful, however, to avoid tampering with
other internal controls, so as not to degrade alignment.
A few other internal controls are mentioned in the
Controls & Connectors chapter. For full alignment
details covering all internal controls, refer to the FT-
1000 Technical Manual.
Key Beeper Volume
This trimmer potentiometer sets the volume (rela-
tive to receiver signal volume as set by the AF control)
of the beep that sounds when one of the front panel
buttons is pressed.
CAUTION
This adjustment must be made with power
applied, and with the cover removed. Although
the voltages at exposed places in the trans-
ceiver are not dangerous to you, sensitive cir-
cuitry can be damaged by contact with metallic
tools. Therefore we recommend using a non-
metallic adjustment tool, if available. In any
case, avoid touching any components not in-
volved in the adjustment, and do not allow
anything to fall in the set while the cover is
removed.
¢ Disconnect the cables from the transceiver, and turn
the set upside-down on the table.
eo
(=
ww
* Remove the ten screws shown below, and remove
the bottom cover.
* Now place the set on its side, reconnect the AC
power cable and antenna.
¢ Turn the transceiver on, and adjust the AF control for
normal volume on background noise on a common-
ly-used band,
* Locate VR3007 from the photo below, and use a
small screwdriver to adjust it for the desired beep
volume while repeately pressing a front panel key.
* Switch the transceiver off, disconnect the power
cable, turn the transceiver on its top again, and re-
place the bottom cover and ten screws removed
above (unless also setting $1001, as described next).
RX ANT Switch Selection Setting with BPF-1
Option (RF Unit Switch $1001)
As supplied from the factory, the RX ANT switch on
the front panel is configured to select a separate
receive-only antenna connected to the RX ANT jack on
the rear panel. If the BPF-1 Bandpass Filter Option is
installed, this switch can be reconfigured to select the
SUB RX ANT jack on the BPF-1 instead, by resetting
switch §1001 on the RF Unit. Note however, that set-
ting this switch to the E BPF position disables the
capability of operating split-frequency with a separate
receive antenna (see the schematics on page 29).
To gain access to the RF Unit, remove the ten
screws shown in the photo at the lower left, and remove
the bottom cover. $1001 is located near the back left
corner, as shown below.
page 9

3. Controls & Connectors - Front Panel Controls
Front Panel Controls
This chapter describes each control and connector
on the FT-1000. You can just read through quickly now,
but some of the descriptions will be more meaningful
if you first work through the Getting Started Tutorial at
the beginning of the Operating chapter, and then return
to this chapter with the set powered up, as questions
arise during operation. Some controls and switches are
disabled under certain conditions.
(1) POWER
This button turns the transceiver on and off.
(2) 2-Position Pushbutton Switches
RX ANT
When this switch is in the undepressed position, the
antenna connected to the main ANTsocket is used for
receive (it is always used for transmit). When this
switch is depressed (LED indicator on), a second an-
tenna connected to the RX ANT is used by the receiver(s).
If the BPF-1 is installed, this switch can be recon-
figured to select the SUB RX ANT jack on the BPF-1,
enabling reception on two antennas, by resetting switch
$1001 on the RF Unit (see pages 9 and 29).
MOX
This button may be used in place of a microphone
PTT switch or CW key to manually activate the trans-
mitter, when depressed. It must be in the undepressed
position for reception.
vox
Enables automatic voice-actuated transmitter swit-
ching in SSB, AM and FM modes; and semi break-in
page 10
keying in CW mode. The controls affecting VOX oper-
ation are located in the top access panel,
DIM
Dims the brightness of the display and meter lamp
for comfortable viewing in the dark.
Display Dim Level Adjustment
The brightness of the dim selection is adjustable
by holding the FAST button while turning the CLAR
control.
(3) METER Selector
This selector determines the function of the multi-
meter during transmission. The meanings of the ab-
breviations are as follows:
ALC = relative Automatic Level Control voltage
COMP = RF speech compressor level (in dB, for SSB
modes only)
PO = RF Power Output (watts)
SHR = Standing Wave Ratio (forward:reflected)
Ic = Final amplifier collector current (Amps)
ycc = Final amplifier collector voltage.
The meter indicates the selected parameter during
transmission, and signal strength in S-units during re-
ception (on the main receiver). Each S-unit is approx-
imately 6 dB.
(4) AGC Selector
Selects main receiver Automatic Gain Control de-
cay time for most comfortable reception, or disables

ae
3. Controls & Connectors - Front Panel Controls
IR
receiver AGC (off). Normally this switch is set to the
MED position. Strong signals will cause distortion if this
selector is set to OFF.
(5) FRONT END
Use this selector to set the optimum receiver front
end characteristics. The NOR position activates the inter-
nal rf amplifier, for maximum receiver sensitivity on a
quiet
band.
The
IPO
position
bypasses
the
rf
amplifier
and feeds the received signals directly to the first mixer.
The other positions insert 6-, 12- or 18-dB (1, 2 or 3
S-units) of attenuation before the mixer, to suppress
band noise and possible overload from very strong
signals. If the optional BPF-1 Bandpass Filter Unit is
installed, the functions of this selector, for the sub
receiver, may be controlled either in parallel with the
main
receiver
via
this
selector,
or
independently
via the
selector on the BPF-1,
(6) RX MIX ~@> MONI
The inner RX MIX control adjusts the relative balance
of receiver audio between the two receiver channels
during dual reception.
The outer MONI control adjusts the audio volume of
the
CW
sidetone,
and
transmit
RF
monitor
during
transmission, when activated by the gray button with
the same name.
(7) MIC ~®> RF PWR
The inner MIC control adjusts the microphone input
level for (non-processed) SSB and AM transmission.
The outer RF PWR control adjusts the transmitter
output power in all modes. The adjustment range is
from less than 20 to 200 watts, except in AM mode,
where it is from about 5 to 50 watts.
(8) PROC -@~ DRIVE
The inner PROC control sets the compression (input)
level of the transmitter RF speech processor in SSB
modes, when activated by the gray button with the
same name.
The outer DRIVE control sets the carrier level for CW
and AM transmission. Also, when the speech processor
is used in the SSB modes, this control sets the processor
level. In each case, the ALC function of the meter
should always be selected when setting this control, to
avoid overdriving the transmitter final amplifier.
(9) SQL -—®> NB
The inner SQL control sets the signal level threshold
at which receiver audio is muted (and the green BUSY
LEDs turn off), in all modes. This control is normally
kept fully CCW, except when scanning, and during FM
operation. Both main and sub receivers are affected.
The outer NB control adjusts the blanking level when
the noise blanker is activated during reception, for the
main receiver. If set very far clockwise, receiver audio
may be distorted.
(10) AF -<®> RF
The inner AF gain control adjusts the audio volume
of the receiver(s) in the speaker or headphones.
The outer RF gain control adjusts the receiver signal
level in front of the main receiver 1st mixer (via PIN
diodes), and also the gain of the main receiver IF
amplifiers. This control is normally set fully clockwise
for maximum sensitivity. When rotated counterclock-
wise from maximum, the S-meter minimum deflection
point will move up the scale. The peak deflection for a
particular signal will remain the same if it is greater
than the level set by this control, but the main receiver
will be insensitive to weaker signals. This control also
affects the SQL setting for the main receiver, and should
be preset fully clockwise when setting the squelch
threshold for vfo A or a recalled memory. This control
does not affect the sub receiver.
(11) MIC
This 8-pin jack accepts the MD-1pg or MD-Icg
Desktop Microphone or the MH-1 pg Handie Scanning
Microphone. MIC pinout is shown on page 7. Proper
microphone input impedance is 500 to 600 ohms.
(12) KEY
This 1/4-inch, -3-contact jack accepts a CW key or
keyer paddles (for the built-in electronic keyer), or
output from an external electronic keyer. You cannot
use a 2-contact plug in this jack, Pinout is shown on
page 7. Key up voltage is 5 V, and key down current is
0.5 mA. There is another jack with the same name,
connected in parallel with this jack, on the rear panel.
(13) PHONES
This 1/4-inch, 3-contact jack accepts either mon-
aural or stereo headphones with a 2- or 3-contact plug.
When a plug is inserted, the loudspeaker is disabled.
With stereo headphones such as the optional YH-77ST,
you can monitor both receiver channels at the same
time during dual reception. In this case, the PHONE
switch (page 17) in the top access panel selects mixed,
separate or monaural headphone operation.
(14) Push Switches
PROC
This gray button enables the RF speech processor
for SSB transmission. Processing level is set by the
control with the same name. While activated, the LED
above this button glows orange.
page Il

3;
Controls
&
Connectors
-
Front
Panel
Controls
AESU
VO Ad RO
foves Star wecan
MONT
This gray button enables the transmit (RF) monitor
in
all
modes
(except
CW,
in
which
the
monitor
function
is
always
on,
to
produce
the
sidetone).
Audio
level
(relative to the main AF control) is set by the control
with
the
same
name.
The
LED
above
this
button
glows
orange while activated,
NB & NB-W
These
buttons
activate
the
main
receiver
noise
blankers.
Press
the
NB
button
to
blank
short
pulse
noise
such
as
from
automobile
ignitions,
power
lines
and
switching
transient
spikes.
Press
the
NB-W
button
to
blank
long
pulse
noise,
such
as
the
“Woodpecker”
over-the-horizon
radar.
The
LEDs
above
each
button
glow
green
while
activated,
Blanking
level
for
both
blankers
is
set
by
the
control
with
the
same
name.
A-B
This
button
transfers
data
from
the
main
display
(either
the
main
vfo
(A)
or
a
recalled
memory
channel)
to
the
sub
vfo
(B),
overwriting
any
previous
contents
in
the
sub
vfo.
Use
this
key
to
instantly
set
both
main
and
sub
receivers
to
the
same
frequency
and
mode.
ASB
This
button
exchanges
the
contents
of
the
main
display
(either
the
main
vfo
(A)
or
a
recalled
memory
channel),
and
sub
vfo
(B).
No
data
is
lost.
M= VFO-A
Pressing
this
button
momentarily
displays
the
con-
tents
of
the
currently
selected
memory
channel
for
three
seconds.
Holding
this
button
for
for
!/2-second
copies
the
data
from
the
currently
selected
memory
to
the main vfo (A), as two beeps sound. Previous data in
the main vfo is overwritten,
RPT
When operating in the FM mode on the 29-MHz
band, this button activates standard hf FM repeater
operation.
Pressing
this
button
once
or
twice
while
receiving causes the transmit frequency to be shifted
100 kHz below or above the receiving frequency, res-
pectively. An 88.5-Hz subaudible tone is also trans-
mitted
automatically
at
a
low
level
when
using
this
feature, to allow access to repeaters that require it.
Pressing this button a third time cancels repeater shift
operation.
M CK (Memory Check)
This button allows display of the contents of the
memory
channels
without
disturbing
operation,
When
pressed, M CK is displayed just above the channel num-
ber. The contents of each memory channel can then be
checked on the sub receiver display by rotating the MEM
selector. Empty memory channels display as two deci-
mals, with no frequency digits. Press this button again
to cancel memory checking.
SPLIT
This button activates split frequency operation be-
tween the main display (either the main vfo (A) or a
recalled memory channel), used for transmission, and
the sub vfo (B), for reception. The SPLIT indicator on
the display is lit while this function is active.
DUAL
This
button
activates
dual-channel
reception
with
the
main
and
sub
receivers.
When
this
function
is
ac-
pege
12
RaR_a__
A
AA
AA
i
_
$_
$_ $_
_

3. Controls & Connectors - Front Panel Controls
tive, DUAL is displayed in an orange box at the left edge
of the display.
DOWN & UP
Pressing either of these buttons momentarily steps
the operating frequency down or up 100 kHz, respec-
tively. Pressing and holding the FAST button while
pressing one of these buttons steps down or up 1 MHz.
Continue holding either button for repeated stepping.
NOTCH
This button activates the IF notch filter for the main
receiver. The frequency of the notch is set by the con-
trol with the same name. The LED above this button
glows green while the notch filter is active. The notch
filter does not affect the sub receiver.
APF
This button activates the Audio Peak Filter during
CW operation with the main receiver. The peak fre-
quency is set by the control with the same name. The
LED above this button glows green while the audio
peak filter is active. Sub receiver operation is unaf-
fected.
VFO-A > M
Pressing and holding this yellow button for 1/2-
second transfers (writes) the current main operating
data from the main vfo (A), or a recalled memory, to
the currently selected memory channel, overwriting
any previous data stored there. Also, pressing and hold-
ing this button after recalling a memory, without first
retuning, causes the memory channel to be “blanked”,
and repeating the process restores the blanked memory.
VFO/MEM
This button toggles main receiver operation be-
tween the memory channel and the main vfo (A). Either
VFO, MEM or M TUNE is displayed to the left of the main
frequency display to indicate the current selection. If a
displayed memory has been retuned, pressing this but-
ton returns the display to the original memory contents,
and pressing it again returns operation to the main vfo.
(15) MODE
These seven momentary buttons select the oper-
ating mode, indicated by the LED in each button. Note
that pressing the RTTY and PACKET buttons multiple
times will switch between the possible modes of emis-
sion that can be used by these digital modes (LSB and
USB for RTTY, and LSB and FM for packet).
(16) FAST
For fast tuning, press and hold this button while
rotating the main or sub tuning knobs or pressing the UP
or DOWN button to increase the tuning rate ten times. See
the table on page 20 for all available steps.
(17) Main (VFO-A) Tuning Knob
This knob adjusts the operating frequency of the
main vfo (A) or a recalled memory. Tuning increments
are normally 10 Hz (100 Hz in AM and FM modes).
When the FAST button is held, the increments are ten
times these sizes. The markings on the knob represent
50 increments each, and one full turn of the knob
provides 1,000 increments (10 kHz, or 100 kHz in
AM/FM).
page 13

3. Controls & Connectors - Front Panel Controls
(18) MAIN VFO-A RX & TX LEDs
These lamps indicate the transmit/receive status of
the main tuning knob and display. When the green RX
lamp is lit, the receiving frequency is under control of
the main knob and display (either vfo (A) or a recalled
memory channel). When the red TX lamp is lit, the
transmitting frequency is under control of the main
knob and display.
(19) Lock
This button toggles locking of the main tuning knob
to prevent accidental frequency changes. LOCK is dis-
played in a red box above the main frequency when
active (the knob can still be turned, but it does nothing).
Press again to re-enable the tuning knob.
(20) BANDWIDTH
These four momentary buttons select the 2nd and
3rd IF filters for the receiver (except in the FM mode).
In AM moée, either 2.4-kHz or 6-kHz bandwidths are
selected by pressing the 2.4K button (off = 6-kHz). The
selectivity provided by these selections can be further
enhanced by installing optional filters (page 40). See
the diagram on page 23 for the available filter combina-
tions. The sub receiver uses only 500-kHz (optional)
and 2.4-kHz selections.
(21) BAND (Keypad)
The keypad provides one-touch band selection, or
digital frequency entry. Normally, pressing one of the
ten white numbered keys selects the corresponding
(MHz) amateur band for operation (and pressing the
SUB button first and then another key selects the band
for the sub vfo. However, if the ENT key is pressed first,
the yellow labels on the keys become effective, for
entering any frequency one digit at a time. If you press
the white numbered key for the band your are already
on, you will select the alternate subband vfo on that
band. See the Operation chapter for details.
(22) Sub (VFO-B) Tuning Knob
This knob adjusts the sub vfo (B) operating frequen-
cy. Tuning increments are the same as described for the
main tuning knob.
(23) SUB VFO-B RX & TX LEDs
These lamps indicate the current status of the sub
vfo. When the green RX lamp is lit, the receiving fre-
quency is under control of the sub vfo (B). When the
red TX lamp is lit, the transmitting frequency is under
control of the sub vfo. During dual receive operation,
the RX lamps above both tuning knobs are lit.
(24) Lock
This button toggles locking of the sub vfo tuning to
prevent accidental frequency changes. The red LED
just above this button glows when active (the knob can
still be turned, but it does nothing). Press the button
again to re-enable the tuning knob.
(25) NOTCH -@> APF
These controls are active only when their functions
have been enabled by the corresponding buttons below
the sub vfo tuning knob. The LEDs above the buttons
indicate when the functions are active. The inner NOTCH
control adjusts the IF notch filter frequency. The outer
APF control adjusts the frequency of the Audio Peak
Filter in CW mode. Both affect only the main receiver.
(26) CLAR Tuning Knob
This knob tunes the clarifier offset frequency up to
+9.99 kHz, when activated by the CLAR RX and/or TX
buttons just above it (the 3-digit offset frequency ap-
pears in the center of the display when the clarifier is
active). Operating details are on page 28.
(27) SHIFT -<@> WIDTH
These controls tailor the IF passband of the main
receiver (the main vfo (A), or a recalled memory chan-
nel) in all modes except FM. The inner SHIFT control
offsets the center frequency of the IF passband from the
displayed frequency when turned away from the 12-
o’clock position. The outer WIDTH control, when turned
counterclockwise from the fully clockwise position,
reduces the overall IF bandwidth from the maximum
selected by the BANDWIDTH buttons.
(28) MEM
This detented knob selects the operating memory
channel when the memories are active (but not re-
tuned). When the vfo or memory tune functions of the
main display are active, turning this knob causes the
sub vfo display to temporarily show the frequencies of
the memories (memory check), without otherwise af-
fecting operation. The channel number of the selected
memory is displayed at all times at the center right of
the display (in front of “CH”’).
(29) Electronic CW Keyer Controls
The KEYER button toggles the internal CW keyer on
and off, as indicated by the LED above this button.
BK-IN turns full break-in (QSK) CW operation on and
off. SPOT turns the CW receiver spotting heterodyne
oscillator on and off. The SPEED control sets the repeti-
tion rate of the keyer/bug simulator.
PO
eee

3. Controls & Connectors - Front Panel Controls
(30) CLAR Pushbuttons
Pressing the RX button activates the CLAR knob
(below this button), to allow offsetting the receiving
frequency temporarily (see (26), above). The TX button
provides the same function for the transmit frequency.
If both buttons are pressed, the receiver and transmitter
are both offset from the original frequency. Pressing the
CLEAR button zeros any offset tuned by the CLAR knob,
Each memory and vfo retains all clarifier settings inde-
pendently.
(31) TUNER 2-Position Pushbutton
Pressing this button so that its LED is lit places the
antenna tuner in line between the transmitter final amp-
lifier and the main antenna jack. Reception is not af-
fected. The tuner is also activated when the START
button (below) is pressed.
(32) START Momentary Pushbutton
Pressing this button while receiving in an amateur
band activates the transmitter for a few seconds while
the automatic antenna tuner rematches the antenna for
minimum SWR. The resulting settings are automat-
ically stored in one of the antenna tuner’s 39 memories,
for instant automatic recall later when the receiver is
tuned near the same frequency.
(33) M SCAN Pushbutton
Activates scanning of the memory channels. Also
used together with the FAST button to set/reset Scan
Skip status of a recalled memory channel.
(34) Right Side LED Indicators
The WI sWwR LED lights when an impedance mis-
match is detected at the main ANT jack. Avoid transmit-
ting until the problem has been corrected,
The WAIT LED lights while the antenna tuner is
tuning, and flashes briefly when changing frequency,
as the main cpu sends new frequency data to the anten-
na tuner coprocessor: this does not affect operation.
The CW TUNE LED is a visual tuning indicator for CW
Teception on the main receiver, which lights in synch-
ronization with a signal tuned to the center of the IF
passband during CW reception.
(35) Digital Display
The display shows, from left to right, special oper-
ating status (CAT SYSTEM, DUAL, SPLIT or GEN (eral
coverage), VFO, MEM Or M TUNE mode of the main receiver;
main receiver operating frequency, clarifier offset,
memory channel number; and sub vfo mode and fre-
quency.
(36) Left Side LED Indicators
The TRANSMIT LED glows red when the transmitter is
activated. The MAIN BUSY and SUB BUSY LEDs glow green
when the main or sub vfo squelch is open, respectively.
(37) Meter
The 7-function multimeter normally indicates main
receiver signal strength on the top scale, and one of six
parameters (selected by the METER selector) during
transmit on the lower scales.
page 1S

3. Controls & Connectors - Top Access Panel Controls
Top Access Panel Controls
PKT_RITY
(1) VOX GAIN
This control sets the gain of the VOX (voice-ac-
tuated transmit/receive switching) circuit, to set the
level of microphone audio needed to activate the trans-
mitter during voice operation while the VOX button on
the front panel is depressed,
(2) VOX ANTI-TRIP
This control sets the level of negative feedback of
receiver audio to the microphone, to prevent receiver
audio from activating the transmitter (via the micro-
phone) during VOX operation. Adjustment is described
in the Operation chapter.
(3) VOX DELAY
This control sets the hang time of the VOX circuit,
between the moment you stop speaking (or open the
CW key during semi break-in operation) and the auto-
matic switch from transmit back to receive (during
VOX operation). Adjust for smooth VOX or semi
break-in operation (so the receiver is activated only
when you want to listen).
(4) FM MIC GAIN
During FM operation, this control adjusts the mic-
rophone gain (and transmitter deviation). More clock-
wise settings produce a wider bandwidth signal.
NOTE: This control has been preset at the factory to
produce the correct deviation with standard micro-
phone levels. A deviation meter should be connected
for proper readjustment, as it is difficult to determine
the proper setting by ear.
(5S) WEIGHT DIP Switches
These DIP switches select the weight (dot:dash
ratio) of the internal electronic CW keyer, between 1:3
page 16
and 1:4.5. Selection is made by setting the switches for
a binary number between 0 and 16, as shown below.
Keyer Weight Settings
(6) PKT RTTY DIP Switches
The two leftmost switches (1 and 2) of this set select
the offset of the display and IF passband center from
the BFO, to match most common packet tncs used for
300-baud hf packet operation. To set these switches,
determine which AFSK tones are used by your tnc, and
then set the switches to match as shown below.
Packet FSK Tone Pairs
The remaining switches in this set select the func-
tion of the internal AFSK generator for RTTY trans-
mission. Switches 3 and 4 select the RTTY shift, switch
5 selects either normal (low Mark) or reversed tones,
and switch 6 selects either a 2125-Hz or 1275-Hz Mark
tone. See the table below.
RTTY DIP Ses
| ate fo || Rv [0 | rete | 0 |
| scone | - | 0 |
Nor: LSB Keydown = Mark Tone
Rev: LSB Keydown = Space Tone

3. Controls & Connectors - Top Access Panel Controls
(7) Cd PITCH DIP Switches
Set these switches to select your desired CW tone
pitch, as shown below. The transmitter sidetone fre-
quency, and receiver IF passband and display offset
from the BFO (carrier) frequency are all affected.
(8) BACKUP Slide Switch
Keep this switch in the on position to retain all
memory and vfo settings during power-off periods,
There is no need to turn this switch off unless you plan
to store the transceiver for a long period without use.
(10) PHONE Slide Switch
This switch selects between three possible modes of
dual-receive audio when stereo headphones are con-
nected to the front pane! PHONES jack.
The @ix (mixed) mode is a combination of the other
two modes described below: audio from both receivers
can be heard in each ear, but the sub receiver audio is
attenuated in the left ear, and the main receiver audio is
attenuated in the right.
In the st (stereo) mode, audio from the main recei-
ver is heard only in the left ear, and audio from the sub
receiver is heard only in the right ear.
In the mono (monaural) mode, audio from both main
and sub receivers is combined and heard the same in
both ears (as from the loudspeaker when headphones
are not used).
Note that both receivers must be activated by the
DUAL button on the front panel, and the RX MIX control
on the front pane] must be set near the center position,
’ ‘ to hear both receiver channels.
(9) MARK Slide Switch
Set this switch on to activate the internal 10-kHz
marker generator, for testing or calibration purposes.
For normal receiver operation, this switch must be off.
This switch does not affect dual-channel audio from
the AF OUT jack on the rear panel, which should be
processed by an external stereo amplifier.
Power Up Selections
By pressing and holding certain combinations of keypad keys while switching on the FT-1000, you can perform
several functions and make some simple settings,
To reset the microprocessors and clear all memories, turn the transceiver off, and then press and hold the SUB
and ENT keys at the lower corners of the keypad while also pressing the POWER switch. Normally there should be
no need to do this, but it is provided for servicing purposes, to return all memories and other settings to their
default states. Note that it is not necessary to turn off the memory backup to reset the microprocessors.
To perform the “Las Vegas” diagnostic test of the display and its microprocessor, and to check the ROM version
of your transceiver, press and hold the 1.5 and 7 MHz band keys (yellow-labelled 1 and 3 keys) at the upper
comers of the keypad while switching the power on. This procedure will not erase any memorized data. After
_ testing the display segments, “YAESU” will be displayed, followed by a ROM version number. After a few
seconds, the display will return to normal operation.
Pressing the 29 MHz band key (yellow-labelled 0 key) while switching on the power causes the 10-Hz digit on
the main and sub vfo displays to be blanked, Repeat the same step to unblank it.
Pressing the 10, 14 and 18 MHz band keys (yellow-labelled 4, 5 and 6 keys) simultaneously while switching
the power on toggles the manner in which the displayed frequency is affected when changing modes. In its
default state, switching to and from CW, packet or RTTY modes causes the display to change by the amount of
_ Offset selected by the CW PITCH and PKT/RTTY DIP switches in the top access panel. After holding these keys
while switching power on, the display will continue showing the same frequency when changing to and from
these modes, However, the actual BFO (carrier) offsets, set by the DIP switches, relative to the display and IF
bandpass are unaffected, regardless of either display state.
page 17

3.
Controls
&
Connectors
-
Rear
Panel
CAE
aN
Ea
LT
nh
ee
a
alc
Rear
Panel
(1)
BPF-1I
Optional
Bandpass
Filter
Module
If
you
have
the
BPF-1
optional
sub
vfo
bandpass
filter
unit
installed,
connect
your
receiving
antenna
(for
the
sub
vfo)
to
the
SUB
RX
ANT
coaxial
jack,
and
set
the
SUB
RX
ATT
selector
to
the
desired
position
(FRONT
if
you
want
the
front
panel
attenuator
selector
to
control
both
main
and
sub
receivers).
Switch
$1001
on
the
RF
Unit
must
also
be
set
to
the
E
BPF
position
to
use
the
BPF-1
(page 9).
(2) GND Terminal Post
Use
this
terminal
to
connect
the
transceiver
to
a
good
earth
ground,
for
safety
and
optimum
perfor-
mance,
Use
a
large
diameter,
short
braided
cable.
(3) ANT Coaxial Jack
Connect
your
main
antenna
here,
using
a
type-M
(UHF,
PL-259)
plug
and
coaxial
feedline.
This
antenna
is
always
used
for
transmission,
and
is
also
used
for
reception
unless
a
separate
receive
antenna
is
also
used
for the
main
receiver.
The
internal
antenna
tuner
affects
only
the
antenna
connected
here,
during
transmission.
(4) RX ANT Phono Jack
This antenna jack is for a separate receive-only
antenna,
activated
when
the
switch
with
the
same
name
on
the
front
panel
is
pressed.
If
the
BPF-1
option
is
not
installed, an antenna connected here can be used by
both
the
main
and
sub
receivers.
If
the
BPF-1
is
in-
stalled,
internal
switch
$1001
on
the
RF
Unit
deter-
9)
(6
47
(8
mines
whether
this
jack
is
used,
or
the
SUB
RX
ANT
on
the
BPF-1
instead.
See
the
diagram
on
page
29.
(5)
TX
GND
Phono
Jack
(normally
disabled)
When
enabled,
this
output
jack
connects
inside
the
FT-1000
to
a
set
of
relay
contacts
which
short
together
(to
chassis
ground)
whenever
the
transmitter
is
active.
This
allows
transmit/receive
switching
of
an
external
device
such
as
a
linear
amplifier.
This
jack
is
disabled
at
the
factory
to
avoid
the
clicking
of
the
relay
when
it
is
not
used.
To
enable
the
jack
when
you
are
connecting
a
linear,
move
switch
$1002
(shown
on
page
9)
to
its
ON
position.
Maximum
ratings
for
these
relay
contacts
are
500
mA
@
125
VAC,
300
mA
@
220
VDC
or
2
A
@
30
VDC.
Before
connecting
an
external
device,
make
sure
its
switching
requirements
will
not
exceed
these
limits.
If your amplifier requires higher current, or has
higher
voltage
switching
requirements,
an
external
switching
device
such
as
the
Yaesu
FRB-757
Relay
Box must be used, and may be connected here.
(6) +13.5¥ Phono Jack
This output jack provides regulated, separately
fused
13.5
VDC
at
up
to
200
mA,
to
power
an
external
device
such
as
a
packet
tnc.
Make
sure
your
device
does
not
require
more
current
(if
it
does,
use
a
separate
power source). Attempting to draw more power from
here will blow the internal fuse behind this jack.
page
£8
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