Yaesu FT-767GX User manual

FT-767GX
OPERATING
MANUAL
YAESU MUSEN CO., LTD.
roxvo sapam

Section
81.0 SPECIFICATIONS .............
1.1 General
1.2 Transmitter
1.3 Receiver
CONTENTS
82.0 CONTROLS, SWITCHES & CONNECTORS 4
2.1 Front Panel Controls
2.2 Rear Panel Jacks & Switches
83.0 INSTALLATION
3.1 Preliminary Inspection
3.2 Power Connection
3.3 Transceiver Location and Grounding
3.4 Antenna Considerations
3.5 Interconnection of Accessories
3.6 Memory Backup
3.7 Tuning Knob Steps
84.0 OPERATION
4.1 Preliminary Steps
4.2 Initial Power Up, Band Selection
4.3 Mode Selection
4.4 Tuning Methods
4.5 Keypad Frequency Entry
4.6 Controls for Enhancing Reception
4.6.1 Noise Blanker
4.6.2 RF Gain Control
4.6.3 NARrow IF Filter Selection
4.6.4 RF AMP Switch
4.6.5 ATTenuator Switch
4.6.6 APF (Audio Peak Filter)
4.6.7 IF Passband Shift
4.6.8 IF Notch Filter
4.6.9 AGC (Automatic Gain Control)
10
coocoocosorra cacos 16
Section
4.7 Transmitter Operation: General
4.7.1 SWR Measuring & Ant. Matching
4.7.2 SSB Transmission
4.7.3 CW Transmission
4.7.4 FM Transmission
4.7.5 AM Transmission
4.7.6 RTTY, HF Packet & SSTV
Transmission
4.8 Programmable Tuning Steps
4.9 Memory Operation
4.9.1 Memory Storage
4.9.2 Memory Recall
4.9.3 Changing Memory Frequency
4.10 Scanning
4.10.1 Memory Channel Scanning
4.10.2 Programmable Memory Scanning
4.11 Split Frequency Operation
4.11.1 Offset Frequency Memory
4.12 Tone Squelch Operation
4.13 Tips for SSB (LSB/USB) Operation
4.13.1 Weak Signal SSB Reception
4.13.2 Strong Signal SSB Reception
4.13.3 Suppressing Interference
4.13.4 Miscellanea
4.14 Tips for CW Operation
4.15 Tips for AM Broadcast Reception
4.16 Tips for FM Communications
4.17 VHF Packet (F2 Mode) Operation
4.18 CAT System Computer Control
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FT-767GX
ALL-MODE, ALL-BAND TRANSCEIVER
The FT-767GX is a solid-s
ting automatic antenna tuner, power supply and provisions for up to three optional
internal VHF and UHF band modules. The standard model provides 100 watts RF power
output on all hf amateur bands in SSB, CW, FM and FSK modes (and 25 watts AM carrier
power). Optional band modules provide 10 watts output on the 6m, 2m and 70cm bands.
tate, all mode synthesized amateur transceiver incorpora-
The die-cast top half of the chassis incorporates the Duct Flow Cooling system
originated for amateur radio by Yaesu, where air is circulated over the circuit
boards and throughout the chassis by a quiet internal cooling fan when operating
temperature rise
Four internal microprocessors with a custom gate array provide the highest level of
digital integration and control ever offered to radio amateurs: including features
previously unknown in a transceiver, such as freely user-programmable independent
tuning steps for each mode, an auto-calculating digital
g step:
SWR meter, digital RF watt-
meter, synchronous tracking VFOs and autospeed AGC (when tuning or scanning).
Popular operating conveniences such as dual (A-B) independent VFOs, ten memories
storing both frequency and mode, all mode squelch and range/step programmable scan-
ner, continuously variable noise blanker threshold, IF shift and IF notch are
included with recent improvements in response to operators! requests.
For CW operators, the FT-767GX operates QSK and includes (as standard) an iambic
keyer with linear speed control, selectable sidetone and carrier offset (600/700/800
Hz), 3-speed AGC (plus OFF), and tunable audio peak filter, all adjustable from the
front panel. A narrow (600 Hz) CW crystal filter is also included as standard.
For especially convenient VHF and UHF operation with the optional band modules, an
FM discriminator center tuning meter is provided, and to facilitate repeater opera-
tion, a split-frequency and clarifier offset display function plus the mode-
dependent programmable tuning steps and tracking VFOs are particularly useful. An
optional subaudible Tone Squelch Unit can be programmed from the front panel, and a
Burst Tone Generator is installed as standard in European versions.

An expanded CAT System with enhanced command set allows practically unlimited addi-
tion of features and user-designed controls from an external computer.
The FT-767GX
also includes connections for automatic control of the FL-7000 Solid-State HF QSK
Linear Amplifier, and digital i/o connection directly to the FM modulator for high
performance packet radio tnc interfacing (personal computers and packet tncs not
supplied by Yaesu).
Please read this manual carefully before operating the FT-767GX.
1.0 SPECIFICATIONS
1.1 GENERAL
Receiving frequency ranges:
100 ktz to 29.99999 MHz (continuous)
50 to 53.99999 MHz — (option)
144 to 145.99999 (or 147.99999*) MHz (option)
430 to 439.99999 (or 440 to 449.99999*) MHz (option)
Transmitting frequency ranges:
1.5 to 1.99999 MHz
3.5 to 3.99999 MHz
7.0 to 7.49999 MHz
10.0 to 10.49999 MHz
14.0 to 14.49999 MHz
18.0 to 18.49999 MHz
21.0 to 21,49999 Miiz
24.5 to 24.99999 MHz
28.0 to 29.99999 MHz
50 to 53.99999 MHz (option)
144 to 145.99999 (or 147.99999”) MHz (option)
430 to 439.99999 (or 440 to 449.99999*) MHz (option)
Emission types:
LSB/USB (J3E); CW (ALA); AFSK (JB, FIB);
AM (A3E); FM (F3E)
Reference oscillator stability:
better than <3 ppm (-10 to +50ºC)
after 15 minutes warmup
Antenna impedance:
Receive, and transceive above 50 MHz:
50 ohms, unbalanced
Transmit - 40, 30, 20, 17, 15, 12 &
10m amateur bands: 20 - 150 ohms
Transmit - 160 & 80m: 25 - 100 ohms
Supply voltage:
100, 110, 117, 200, 220 or 234 VAC,
50/60 Hz
Power consumption (approx.):
Receive: 55 VA
Transmit: 650 VA
Dimensions (WHD):
368 x 129 x 295 mm
Weight (with/without options):
15.5/13.5 kg (35/30 Ibs)
* per local requirements and Band Module

1.2 TRANSMITTER
Power output:
HF (al! modes except AM): 100W
HF (AM carrier): 25W
VHF/UHF (all modes except AM): 10W
VHF/UHF (AM carrier): 2.5W
Modulation types:
SSB Balanced, | filtered carrier
AM Low level (early stage)
FM Variable reactance (+5 kHz deviation)
FSK Audio frequency shift
Harmonic radiation:
HF: better than -50dB below peak output
VHF/UHF: better than -60dB
Carrier suppression (SSB):
better than -40dB below peak output
Undesired sideband suppression (SSB):
better than -50dB below peak output
Audio response (SSB, with TX Shift off):
not more than -6dB from 350 - 2900 Hz
3rd order IMD (vs single tone, W100W PEP,
14MHz):
better than -35dB below peak output
Microphone impedance:
500 - 600 ohms
1.3 RECEIVER
Circuit type:
triple-conversion superheterdyne
Intermediate frequencies:
45.03 MHz, 8.215 MHz and 455 kHz
Sensitivity:
see chart below
Image rejection:
1.5 to 30 MHz:
VHF/UHF:
70dB or better
60dB or better
IF rejection:
1.5 to 30 MHz:
VHF/UHF:
70dB or better
60dB or better
Selectivity (-6/-60dB):
SSB, CW, AMIN): 2.7/4.5 kHz
CWIN) (optional): 600/1300 Hz
AMIW): 6/16kHz
FM: 15/30 kHz
Notch filter rejection:
better than -30dB
Variable IF shift:
=1kHz
Audio output power:
1.5W into 4 ohms with 10% THD
Audio output impedance:
4 to 16 ohms
FT-767GX Sensitivity Chart
100 to | 200 to | 0.5 to Sto | Gina mt || Tienie
200 kHz | 500 kHz | 1.5 MHz| 20.9 MHz
[10dB S+N/N (uV)]
SSB/CW/FSK 25 1 4 0.25 0.25 | 025 | 0.25
AM 25 4 20 1 1 1 1
[12dB SINAD (uV)]
EM = a - 05 0.32 | 0.32 | 0.32
[Squelch sens]
SSB/CW/FSK/AM | 20 10 20 2 1 1 1
EM - - - 032 | 032 | 0.32 | 0.32
* with optional unit

2.0
CONTROLS,
SWITCHES
&
CONNECTORS
26 S U
23/22
1
FRONT
PANEL
CONTROLS
(1) POWER
This
button
turns
the
transceiver
on
and
off.
(2) MOX
This
button
manually
activates
the
transmitter
when
depressed.
This
button
must
be
in
the
undepressed
position
for
reception,
and
for
automatic
transmitter
activation
via
the
VOX
and
semi
break-in
or
QSK
systems.
(3) MIC Jack
This
8-pin
jack
accepts
the
MD-IB8
Desktop
Microphone,
MH-1B8
Handie
Scanning
Microphone,
or
the
YM-48A
Handie
DTMF
Scanning
Microphone.
Mic
pinouts
are
shown
on
page
9.
Acceptable
microphone
input
impedance
is
500
to
600
ohms.
(4)
PHONES
Jock
This
3-contact
jack
accepts
either
stereo
or
monaural
headphones
with
a
2-
or
3-contact
plug.
When
a
plug
is
inserted
the
internal
or
external
loudspeaker
is
disabled.
(5)
MIC
-S
DRIVE
The
inner
MIC
control
sets
the
transmitter
audio
amplifier
gain
during
SSB
and
AM
trans-
mission.
Output
power
for
SSB
transmission
and
modulation
level
for
AM
transmission
are
set
by
this
control
when
the
speech
processor
is
off.
The
DRIVE
control
sets
the
transmitter
carrier
level
for
CW, AM,
FSK
and
FM
transmission.
Also,
when
the
speech
processor
is
used
in
SSB
or
AM
modes,
this
control
sets
the
processor
drive
level.
2 19 18
(6) SQL o NB
The
inner
SQL
(squelch)
control
sets
the
sig-
nal
threshold
level
at
which
receiver
audio
is
muted,
in
all
modes.
When
the
optional
FTS-8
Tone
Squelch
Unit
is
installed,
turning
this
knob
fully
counterclockwise
into
the
T
SQL
position
activates
tone
squelch
(FM
only).
Set
this
control
counterclockwise
but
not
into
the
click-stop
for
unsquelghed
reception.
The outer NB (Noise Blanker) control adjusts
the width of the blanking pulse when the noise
blanker is activated during reception. If set
very far clockwise receiver audio may be dis-
torted.
(7) AF o RF
The inner AF gain control adjusts the audio
volume of the receiver output in the speaker
or headphones.
The outer RF gain control adjusts the gain of
the receiver RF and IF amplifiers. This con-
trol is normally set fully clockwise for
maximum sensitivity. When rotated counter-
clockwise from maximum, the
meter minimum
le. The
peak deflection for a particular signal will
remain the same if it is greater than the
level set by this control, but the receiver
will be insensitive to weaker signals. This
control also affects the SQL setting, and
should be preset fully clockwise when setting
the squelch threshold.
deflection point will move up the

(8) 2-Position Pushbutton Switches
VOX: enables automatic voice-actuated
transmit/receive switching in SSB, AM and
FM modes; semi break-in keying in CW mode;
and tone-actuated transmit/receive swit-
ching in FSK mode. This button must be
pressed together with the Full BK-IN but-
ton for QSK operation.
FULL BK-IN: activates full break-in CW
(QSK) on the hf bands. When activated,
the receiver will be audíble between dits
and dahs. The VOX button must be depres-
sed for this switch to function.
PROC: enables the rf speech processor in
SSB and AM modes. Processing level is set
by the control with the same name,
MONI: enables the CW sidetone monitor in
CW mode, and the transmit (IF) monitor in
other modes. Volume is set by the control
with the same name,
TX SHIFT: enables custom setting of the
transmitter IF bandpass in SSB modes,
using the control of the same name.
T ENC: activates either the Burst Tone
generator (when the FTE-2 Burst Unit is
installed), or the CTCSS (subaudible) tone
generator on FM transmissions when the
optional FTS-8 Tone Squelch Unit is
installed.
NAR: selects narrow IF filtering in CW
and AM modes. Narrow AM -6dB bandwidth is
2.7 kHz, and narrow CW is 600 Hz.
RF AMP: activates the receiver front-end
RF amplifier for extra sensitivity on HF
bands, when needed.
ATT: adds a 20dB attenuator between the
antenna and the receiver front end for
extra immunity to overload on the HF
bands, when needed. The 'ATT' indicator
LED below the display window is lit when
this button is depressed.
(9) Pushbuttons with LED Indicators
D LOCK (with red LED): disables the
tuning knob to prevent inadvertent fre-
quency changes.
MUTE (with yellow LED): disables receiver
audio, for keeping the receiver on in
standby.
NB (with green LED): activates the noise
blanker.
APF (with green LED): activates the audio
peak filter (for CW reception).
NOTCH (with green LED): activates the IF
notch filter.
(10) Tuning Knob
Controls displayed frequency in selectable 10
Hz or 100 Hz steps.
(11) VDOWN A UP PROGRAM Keys
Tune displayed frequency in programmable
steps, which may be different for each mode.
Pressing and holding one of these keys for
more than one half second activates multiple
stepping in the programmed steps. Steps are
originally preset at the factory to 5 kHz for
all modes.
(12) SHIFT -S TONE
The inner SHIFT control allows the center of
the receiver IF passband to be positioned
above or below that of the received signal, to
eliminate interference from signals on adja-
cent frequencies. Normal setting is the 12
o'clock position.
The outer TONE control adjusts receiver audio
characteristics in all modes.
(13) BAND / MCH Keys
Use thes keys to select operating frequency
band or memory channel (according to the oper-
ating status selected by the keypad). The key
on the left steps down, and the key on the
right steps up. Press and hold for a half
second for multiple stepping. In General Cov-
erage mode, steps are 500 kHz. In Ham mode,
steps are in 500 kHz ham band segments. If
the FTS-8 Tone Squelch Unit is installed,
these keys also select tone frequency.
(14) NOTCH -S-APF
The inner NOTCH control adjusts the frequency
of the IF notch within the receiver passband
when the NOTCH button is depressed, except in
the FM mode.
The outer APF (Audio Peak Filter) control ad-
justs the frequency of the filter passband
during CW operation when the APF button is
depressed.
Eu E =

(15) FAST, MIC U/D and KEYER pushbuttons
Press the FAST button to select coarse tuning
steps for the tuning knob, PROGRAM DOWN and
UP keys, microphone up/down keys; and PMS
(Programmable Memory Scan) function. When
this button is pressed the 10 Hz digit on the
frequency display is blanked.
The MIC U/D key selects the step size of the
microphone UP and DWN keys on the optional
scanning microphone. When this key is in the
NOR (undepressed) position, the microphone
buttons will duplicate the tuning steps of the
tuning knob. When in the PROG (depressed)
position, microphone tuning steps are the same
as the PROGRAM DOWN and UP keys.
The KEYER button turns the internal CW keyer
on and off.
(16) KEYER 9 PITCH
The inner KEYER control sets the speed of the
internal CW keyer.
The outer PITCH control is a 3-position
switch, selecting 600, 700 or 800 Hz CW car-
rier offset and sidetone pitch. Set to the
most comfortable sidetone frequency.
(17) FUNCTION Keypad
These 15 keys each have dual functions: the
default function labelled on the upper half of
each key, and the alternate function that be-
comes active after the orange key is pressed
(labelled in reverse letters/symbols on the
lower half of each key). Througiout this man-
val, the alternate key functions will be indi-
cated by parentheses () following the default
function name: e.g., the default function of
the H/G (ENT) key toggles Ham/Gen states,
while the alternate function ENTers programmed
data into a VFO or memory.
TRACK (PD)
The default function of this key toggles
simultaneous tracking of the two VFOs (A
and B), so that when the frequency of one
is changed, the frequency of the other
changes by the same amount. The green
TRACK indicator below the display lights
when this function is active. This is
convenient for tuning repeater sub-bands
where the repeaters all have the same off-
set. The alternate function of this key
(right arrow) causes the blinking display
digit selected for keypad frequency entry
to shift one place to the right. Keypad
frequency entry is described later in the
*Operation' section.
PMS (V/U)
The default PMS (Programmable Memory Scan)
function sets memory channels as the
limits for the scanner, when activated by
the SCAN button. A 'P! appears in the CH
position on the display when PMS is
active. The alternate V/U function
selects the VHF and UHF bands (if the op-
tional Band Modules are installed), and
multiple presses also cause the blinking
display digit selected for frequency entry
to shift one place to the left (the con-
verse of the preceding key, not labelled
on this key).
SCAN (7)
The default SCAN function starts the scan-
ner, scaming either the VFO; memory chan-
nels (if the memory recall (MR) mode is
active); or between the frequencies stored
in preset adjacent channels (if the PMS
function is active). The alternate func-
tion enters the digit 7 in place of the
blinking display digit selected for fre-
quency entry.
MpP-VFO (8)
The default function transfers the data
stored in the selected memory to the sel-
ected VFO, overwriting previous VFO data.
The alternate function enters the digit 8
in place of the blinking display digit
selected for frequency entry.
vFODM (9)
The default function transfers the data
stored in the selected VFO to the selected
memory channel, overwriting previous mem-
ory channel data. The alternate function
enters the digit 9 in place of the blin-
king display digit selected for frequency
entry.
VFO AB (CE)
The default function causes exit from mem-
ory mode to a VFO, or the alternate VFO (A
or B) to be selected. The currently sel-
ected VFO or memory is indicated on the
display. The alternate "Clear Entry!
function is enabled only after keying in
other digits on the keypad, before pres-
sing the (ENT) key: the entered digits
are cleared, and the blinking display
digit is reset to the far left so that you
can reenter data.

FUNC (T SET) (Orange Key)
This is the special key that activates
(with one push) the alternate functions of
all other keys. If this key is pressed
twice in succession, the subaudible tone
frequencies for the (optional) FTS-8 Tone
Squelch Unit can be selected by the
BAND/MCH keys.
MR (4)
The default function causes exit from the
VFO mode and recalis the last-used memory
channel (indicated to the right of the
operating frequency on the display). The
alternate function enters the digit 4 in
place of the blinking display digit selec-
ted for keypad frequency entry.
SPLIT (5)
When operating on a VFO, the default func-
tion causes the other VFO frequency to
become the transmitting frequency, while
the displayed VFO then serves as receive
frequency only. The alternate function
enters the digit 5 in place of the blin-
king display digit selected for frequency
entry.
VFO BaM (6)
The default function exchanges the memory
and mode of the selected VFO with the
memory and mode of the selected memory
channel. No data is overwritten. The
alternate function enters the digit 6 in
place of the blinking display digit selec-
ted for frequency entry.
H/G (ENT)
The default function toggles the selected
VFO between Ham bands and General Coverage
on HF. When General Coverage is selected
the green LED beneath the display window
is lit. The alternate (ENT) function
causes whatever digits have been selected
by the numeric keys and displayed (with
one digit blinking) to be entered into the
VFO, at which time operation shifts to the
new frequency and the functions of all
keypad keys return to their default
states. Once the orange FUNC key is pres-
sed, this key must be pressed to return
the display and keypad to normal (default)
operation.
AC (0)
The default function requires two presses
of this key in succession, and cancels
clarifier and/or split ofísets. The al-
ternate function enters the digit O in
place of the blinking display digit selec-
ted for frequency entry.
CLAR (1)
The default function toggles the clarifier
on and off, which causes the transmit fre-
quency to remain fixed while the tuning
knobs and buttons control only the recei-
ving frequency. Note that once a clarifier
offset is tuned, it is stored in a special
memory even when this key is used to turn
the clarifier off (only the 'AC! key
erases the clarifier memory). The alter-
nate function of this key enters the digit
1 in place of the blinking display digit
selected for frequency entry.
MCK (2)
The default (memory check) function allows
display of the contents of the memory
channels without disturbing operation.
When this key is pressed the MR indicator
at the left of the display and the CH
indicator at the right of the display both
blink. The contents of each memory chan-
nel can be checked by pressing the
BAND/MCH keys to step through the memo-
ries. Press this key again to return the
display to normal. The alternate function
enters the digit 2 in place of the blin-
king display digit selected for frequency
entry.
OFFSET (3)
When the clarifier or split operation is
active, the default function of this key
causes the difference between the transmit
and receive frequencies to be displayed
(with a preceeding !-' if the transmit
frequency is lower). Press this key again
to return the display to normal. The al-
ternate function enters the digit 3 in
place of the blinking display digit sel-
ected for frequency entry.

(18) ANTENNA TUNER
TUNER Pushbutton
This switch places the antenna tuner in
the line between the transmitter and the
HF antenna (the receiver comection to the
antenna is unaltered). When depressed,
the
tuner
status
is
indicated
in
the
win-
dow above the switch:
READY (green) indicates the tuner is
matched and ready for transmission.
WAIT (yellow) indicates the tuner is
readjusting itself. Wait until the
READY indicator lights before trans-
mitting.
WARN (red) indicates the tuner cannot
match the antenna to a low enough
SWR. Check the antenna and feedline
for a problem.
START Momentary Pushbutton
This pushbutton causes the antenna tuner
to readjust itself for minimum SWR. The
transmitter must be sending a steady car-
rier while the antenna tuner is readjus-
ting itself.
(19) DIGITAL SWR, RF PWR Pushbuttons
These momentary buttons toggle the digital SWR
and wattmeter functions of the display on and
off. Transceiver operation is not disturbed.
The selected function is indicated by 'SWR! or
*W'
(watts)
to
the
right
of
the
displayed
par-
ameter.
(20)
MODE
Selector
Pushbuttons
These
six
momentary
buttons
select
the
oper-
ating
mode
of
emission.
(21) Display
The diagram below shows the various segments
of the display.
(22) CAT ATT TRACK GENLEDs
These indicators glow when their respective
functions are active:
CAT = external control via the CAT System,
ATT = HF frontend receiver attenuator,
TRACK = VFO A/B tracking tuning,
GEN = General Coverage.
(23) ON AIR and BUSY LEDS
The
red
ON
AIR
indicator
glows
while
transmit-
ting.
The
green
BUSY
indicator
glows
when
the
main
squelch
is
open
while
receiving.
(24) -Multimeter
The meter indicates either relative received
signal strength (S scale) or FM discriminator
center tuning (DISC scale) while receiving;
and relative transmitter power output (PO
scale), final transistor current (IC scale),
transmitter automatic level control (ALC
scale), or speech processor compression level
(COMP scale) while transmitting. Also, the
VCC scale may be used to check power supply
voltage (at the final transistors), at any
time.
ends
Ecos
pd
|
Ee
RE
Power
IWatts]
displaved—
SWR dispiayed:
Digyt
for
Memory
Channel
|
ERES
ga
GE
==]
o
ea
ve
7
7
RR
[RA
Ea)
En)
Tigre for SWR
Dxgns for Frequencr
| À
Ciarifier active
= for Tome Frequency
ve
Last
dig
is
Memory
Ch
No.)
CTCSS
Tone
displaveé

(25) Small Controls
VOX GAIN: agjusts sensitivity of the VOX
circuit to audio at the microphone during
voice modes, when the VOX button is
pressed.
PROC: sets the compression level of the
speech processor in SSB modes when the
button of the same name is pressed. The
COMP meter function may be used to monitor
compression level.
MONI: sets the volume of the CW sidetone
and transmit IF monitor (in relation to
the setting of AF control).
TX SHIFT: adjusts the carrier frequency of
SSB transmissions +100 Hz when the button
of the same name is pressed. This is used
with the transmit monitor to set the de-
sired transmitter spectrum.
AGC: selects the desired receiver AGC
decay time (fast, medium, slow), or dis-
ables receiver AGC (off).
DIM: sets the brightness of the display
and meter pilot lamp, or turns them off.
(26) METER Selectors
The DISC button causes the meter to indicate
FM discriminator center tuning (instead of
signal strength) in the FM mode. Meter func-
tions in other modes are unaffected. The dis
criminator meter indication is to center-scale
when no signal is received, and also when an
FM signal is precisely tuned in. When an FM
signal is off-tuned the meter will deflect to
the right or left of center, according to whe
ther the signal is above or below the frequen-
cy of the receiver.
Te IC/ALC/COMP/PO/VCC selector determines the
function of the multimeter, aside from the
DISC button. In the first four positions, the
meter will indicate the selected parameter
during transmission, serving as an S-meter (or
DISC meter) during reception. In the VCC po-
sition, the voltage at the collectors of the
final transistors will be indicated (transmit
and receive).

15 70cm UNIT
Í [| copron |
2m UNIT
(OPTION!
m UNIT
| (oprion
2.2 REAR PANEL JACKS & SWITCHES
(1)
BACKUP
Pushbutton
Switch
Turns the internal lithium battery backup
system for memory and VFO data off (when de-
pressed). This normally kept
(undepressed),
except
when
the
transceiver
is
to be
switch is on
stored.
(2) GND Terminal Post
Connect this terminal to a good earth ground
using heavy braided cable.
(3) RX ANT Switch and Jacks
The NOR (undepressed) switch position con-
nects the transceiver to the main coaxial
(HF) ANT socket on both d
receive. The SEP (depressed) position
the transceiver to the smaller
(HF) ANT phono jack just to the right of
when receiving.
transmit a
connects
the switch
The EXT RCVR phono jack is for connection
of the input of a separate (HF) receiver,
which will share the (HF) antenna at the
main coaxial ANT socket when the FT-767GX
is not transmitting.
10
(4)
RF
OUT,
EXT
ALC,
TX
GND
Jacks
The
RF
OUT
phono
jack
provides
a
low-level
(-6dBm
&
50
ohms,
0.1
Vrms)
output
of
the
transmit
signal
(HF
only).
The EXT ALC phono jack accepts transmitter
automatic level control input from a lin-
ear amplifier. Acceptable levels are -1
to -7V (attack threshold is -3 to -4V),
The TX GND phono jack is connected across
contacts of a special
relay in the FT-767G)>
transmit/receive
+ which are closed-
circuit during transmission, and open-
circuit during reception. Maximum ratings
are O.1A 250 VAC, 0.24 220 VDC. Resis-
tive load ratings are 2A G30 VDC, or 0.44
125 VDC. NOTE: internal switch $2002 (on
the RE Unit) must be set to the ON posi-
tion when this jack is used.
(5) PO ADJ Control
This sets the sensitivity of the
relative power output (PO) function of the
multimeter on the front panel. The digital
wattmeter is
control
unaffected.
(6) DC OUTPUT +13.5V, +8V
These phono jacks provide DC voltage for oper-
ati Maximum current
13.5V and
g external accessories.
capability is 200 mA at the
100 mA at the 8V jack.
jack,

(7) MARK & LINEAR AMP Switches
The MARK switch activates a calibrating
carrier at multiples of 25 kHz throughout
the HF range of the receiver. This switch
should be OFF (undepressed) for normal
operation.
The LINEAR switch, when depressed (posi-
tion 1) enables QSK transmit/receive swit-
ching control by an external linear
amplifier which is designed for full
break-in operation, such as the Yaesu FL-
7000. When operating the FT-767GX without
a linear amp, or with a non-QSK linear
amp, this switch must be in the undepres-
sed position (position 2).
(8) KEY Jak
This 4-inch, 3-contact stereo jack accepts a
CW key or keyer paddles (for the built-in
electronic keyer), or your external electronic
keyer. DO NOT USE A 2-CONTACT PLUG in this
jack. Pinout is shown below. Key up voltage
is 45V, and key down current is 2 mA.
(9) BAND DATA & CAT DIN Jacks
The 8-pin BAND DATA jack provides control
and band selection data to the FL-7000
Linear Amplifier. Pinout is shown below.
Pins 4 - 7 are 500 kHz band selection data
in parallel BCD format, TTL levels. Pin 8
in connected in parallel with the LINEAR
switch. Pinout is shown below,
The 6-pin CAT jack includes serial 1/0,
AGC and PTT data for external computer
control. Data rate is 4800 bits/sec, TTL
level. Pinout is shown below.
1 ai
“Ro -
KEY PLUG PINOUT
(10) PTT Jack
This
RCA
jack
is
connected
in
parallel
with
the
MOX
switch,
and
allows
activation
of
the
transmitter
by
external
devices,
such
as
a
packet
TNC
or
a
footswitch.
Open-circuit
vol-
tage
is
8V
DC,
and
closed-circuit
current
is
8
mA.
(11)
DELAY
&
ANTI-TRIP
Controls
The
DELAY
control
sets
the
hang
time
between
key
up
and
receiver
reactivation
of
the
VOX
and
CW
semi
break-in
functions.
The
ANTI-TRIP
control
sets
the
level
of
negative
feedback
from
the
speaker
audio
output
to
the
VOX
amp-
lifier,
to
prevent
speaker
audio
from
tripping
the
VOX.
(12) IF Unit Jacks
EXT
SPKR
is
a
2-contact
mini
phone
jack
for
connection
of
an
external
4-
to
8-ohm
speaker, such as the SP-102.
AF
OUT
is
a
phono
jack
which
provides
constant-level
100mV
audio
output
at
10-
kilohms,
for
an
external
tape
recorder
or
audio
amplifier.
The
audio
at
this
jack
is
not
affected
by
the
AF
or
TONE
controls.
DATA IN/OUT is a 3-contact mini stereo
jack which allows direct connection to the
FM
receiver
demodulator
and
FM
transmitter
modulator,
for
digital
terminal
equipment
such as a packet radio TNC on VHF or UHF.
No
pre-
or
de-emphasis
is
added
to
the
signals at this jack. Input impedance
(ring
contact)
is
600
ohms
(for
FM
mode
only)
and
input
signal
level
should
be 30
mVrms.
Output
(center
contact,
all
modes)
level
is
800
mVrms
maximum
at
10
kilohms.
1+3v
1 GND (common)
2 SO (serial output)
3 Si(serial input)
PTT (push-to-talk line)
5 AGC(O to-4V HiZ)
NC
4
TX GND
TUN CNTL
e
LINEAR
BAND DATA PLUG PINOUT
BAND DATA
E
DATA IN/OUT PLUG PINOUT
CAT PLUG PINOUT
|

PATCH IN is a phono jack which accepts (13) FUSE Holder
transmitter audio input from a phone For 100 - 117 VAC operation, install a 10A
patch, external AFSK generator or other fuse here. For 200 - 234 VAC operation in-
source with 600 ohms impedance. Optimum stall a SA fuse,
input level is 2 mVrms. The MIC control
on the front panel affects this input. (14) AC Jack
After ensuring that the installed fuse has the
FSK is a phono jack which provides 8 VDC correct rating for the AC voltage to be used,
whenever the FSK mode is selected. This connect the mating end of the supplied AC
may be used as a control line for your cable to this 3-pin jack.
terminal unit (to turn it off when oper-
ating on other modes). (15) ANT Coaxial Jack
This type 'M! (SO-239) jack is for connection
of your hf antenna, or linear amplifier input.
Optimum impedance is 50 ohms, unbalanced.
FT-767GX POWER TRANSFORMER VOLTAGE SELECTION
1f your local AC mains voltage does not match the label on the rear of the FT-767GX, the taps on the
primary winding of the power transformer in the FT-787GX should be changed according to the following
procedure. Make sure to change the label on the rear of the transceiver to match the new voltage after
changing the taps.
1) Disconnect all cables from the transceiver. 8) Locate the white molex connectors (for power
and loudspeaker) inside the rear of the chas-
2) Remove the two screws affixing each VHF or sis, and disconnect them.
UHF Band Module, and slide the modules out of
the transceiver (Figure 1). 9) Fold the lower half of the chassis away from
the upper half, placing a book or similar
3) Remove the two screws at the front of the top support of about the same thickness as the
cover (heatsink, see Figure 2). heatsink under the bottom half as shown in
Figure 8.
4) Place the transceiver upside down, and remove
the four screws from the bottom corners and 10) Remove the seven screws from the shield
twoon each side (including the carry ing handle cover on the inside of the heatsink, as shown
screws, see Figure 3). Then remove the handle in Figure 9.
and the bottom cover.
11) Locate the power transformer (Figure 10), and
5) Referring to Figure 4, remove the seven black change the wiring as indicated by the labels
painted screws from the rear panel. Then on the transformer.
remove the (black) outer rear panel.
12) Reassemble the transceiver in the reverse
6) Referring to Figure 5, remove the ten screws order of disassembly, and change the voltage
from the inner rear panel, and remove this label on the rear panel to match the new
panel. transformer voltage.
7) Remove one screw from each side, as indicated
in Figure 6.
= pres

Figure |
Figure 9
POWER
TRANSFORMER
Figure
10
AC
AC
AC
AC AC
aC
234v
220
200V
n7v
nov
no
Figure 11
Figure 6
E

3.0
INSTALLATION
The
FT-767GX
is
designed
for
operation
from
AC
power
only.
The
proper
AC
voltage
is
marked
on
the
rear
panel.
3.1
Preliminary
Inspection
Inspect
the
transceiver
thoroughiy
immediately
upon
opening
the
packing
carton.
Check
to
see
that
all
controls
and
switches
work
freely,
and
inspect
the
cabinet
for
any
signs
of
damage.
If
any
damage
is
found
document
it
completely,
and
contact
the
shipping
company
(or
dealer,
if
you
purchased
itover
the
counter)
right
away.
Save
the
packing
materials
for
possible
use
at
a
later
date.
3.2 Power Connection
Before
connecting
power,
check
the
AC
voltage
label
on
the
rear
panel,
to
make
sure
it
matches
your
local
line
voltage.
1f
your
mains
voltage
is
different,
the
taps
on
the
power
transformer
inside
the
trans-
ceiver
must
be
changed.
Follow
the
procedure
on
page
12,
or
contact
your
dealer
for
assistance.
NOTE:
if
you
change
the
transformer
wiring
from
117Y
or
below
to
220V
or
above,
or
vice-versa,
you
must
change
the
fuse
in
the
fuse
holder.
The
lower
voltages
require
a
10A
fuse,
and
the
higher
voltages
require
a
5A
fuse.
CAUTION:
PERMANENT
DAMAGE
WILL
RESULT
IF
IMPROPER
AC
SUPPLY
VOLTAGE
IS
APPLIED
TO
THE
TRANSCEIVER.
YOUR
WARRANTY
DOES
NOT
COVER
DAM-
AGE
CAUSED
BY
APPLICATION
OF
IMPROPER
SUPPLY
VOLTAGE,
OR
USE
OF
AN
IMPROPER
FUSE.
After
making
certain
the
AC
voltage
is
correct
for
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.
Do
not
connect
the
other
end
of
the
power
cord
to
the
wall
outlet
until
all
other
transceiver
interconnections
have
been
made.
3.3
Transceiver
Location
and
Grounding
When
setting
up
the
FT-767GX
make
sure
there
is
plenty
of
ventilation
around
the
top
and
rear
of
the
cabiner.
The
cooling
system
of
the
FT-767GX
must
be
free
to
draw
cool
air
in
at
the
lower
rear
of
the
transceiver,
and
to
expel
warm
air
out
of
the
top,
toward
the
back.
Do
not
place
the
transceiver
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.
Avoid
heating
vents
and
window
locations
that
could
expose
the
trans-
ceiver
to
excessive
direct
sunlight,
especially
in
hot
climates.
Connect
the
GND
terminal
on
the
rear
panel
to
a
good
earth
ground,
using
a
heavy
braided
cable
of
the
shortest
length
possible.
Al
other
station
equip-
ment
should
be
connected
to
the
same
grounding
cable,
as
close
together
as
practical.
If
you
use
à
computer
with
or
near
the
FT-767GX,
you
may
need
to
experiment
with
ground
wiring
to
suppress
com-
puter
noise
in
the
receiver.
3.4
Antenna
Considerations
The
automatic
antenna
tuner
in
the
FT-767GX
is
capable
of
matching
antennas
with
an
SWR
of
up
to
3:1
or
more
(on
the
amateur
bands
above
80m)
to
the
transmitter.
Nevertheless,
best
performance
for
both
reception
and
transmission
will
be
had
with
an
antenna
designed
to
provide
a
50-ohm
unbalanced
resistive
load
at
the
operating
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
auto-
'matic
reduction
in
power
output
and
increased
losses
in
the
feedline.
Operation
under
such
conditions
is
not
recommended:
it
is
better
to
install
another
antenna
designed
for
that
band.
Also,
if
your
antenna
has
a
balanced
feedpoint
and
you
use
a
balanced
feedline,
install
a
balun
between
the
transceiver
ANT
jack
and
the
feedline.
3.5 Intercomnection of Accessories
The
diagrams
on
the
following
pages
show
intercomnections
of
various
accessories.
If
you
have
any
questions
on
connecting
devices
not
shown,
contact
your
dealer
for
advice.
=aAfie=

3.6 Memory Backup
Before leaving the factory, the lithium memory
backup system is switched off. Set this on by
pushing the BACKUP switch on the rear panel so
that it is in the out (undepressed) position.
This will allow 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 you wish to
intentionally clear all memories, or if 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.
FAS-1-4R
ant
COMPUTER
Ac coro
LINEAR AMP)
= qe
3.7 Tuning Knob Steps
The tuning knob rate is preset by switch
S3005 on the Local Unit for 5kHz per revolu-
tion (Fast 50kHz/rev).
To change this to 10kHz/100kHz per revolu-
tion, locate S3005 as shown below, and move
it to the 10kHz position.
lr
o
Doo d
oo,
[Ta
LOCAL UNIT
APPLE /FIF-65A
E

4.0 OPERATION
This
section
is
intended
to
familiarize
you
with
the
various
operating
features
of
the
transcei-
ver.
The
early
subsections
describe
in
detail
the
basic
operating
procedures
for
the
receiver
and
transmitter.
However,
for
these
to
work
as
described
it
is
assumed
that
you
have
performed
each
step
in
the
order
given,
from
the
start
that
you
have
already
read
82,
and
are
familiar
with
the
locations
and
basic
functions
of
the
various
controls
and
switches;
and
that
the
transceiver
has
been
installed
as
described
in
83.
If
not,
please
read
S2
and
S3
now.
Subsections
4.8
through
4.12
describe
the
more
complex
operations
involving
-programmable
features,
memories
and
scanning.
We
do
not
recommend
random
experimentation
with
the
controls
until
after
you
have
followed
these
procedures.
Some
keys
and
switches
alter
or
disable
other
functions
and
may
cause
confusion.
Although
this
should
not
damage
the
equipment,
you
may
have
to
turn
off the
transceiver
and
press
the
BACKUP
switch
(twice)
to
reset
the
memory
system
(83.6)
if
you
loose
track
of
opera-
ton.
If
the
location
or
basic
function
of
a
control
or
switch
is
unclear,
refer
to
82.
Subsections 4.13 through 4.18 offer some sugges-
tions
for
implementing
features
in
different
applications.
The
comments
and
procedures
in
these
final
sections
are
intended
to
guide
your
own
experimentation,
rather
than
to
serve
as
a
last word on the best way to operate: ultimately
it
is
up
to
you
to
choose
the
best
features
and
techniques for your own operating preference.
4.1 Preliminary Steps
Before
plugging
in
the
power
cord
to
the
wall
outlet,
double
check
that
the
AC
voltage
label
on
the
rear
panel
match
your
line
voltage.
Also,
set
the
BACKUP
switch
on
(undepressed
position)
df
it
is
not
already.
Set
the
front
panel
power
switch
to
the
OFF
(undepressed)
position.
Connect a microphone, if desired, to the MIC
jack.
For
CW
operation,
connect
your
CW
key
or
keyer paddles to the KEY jack.
Preset the front panel controls:
MIC, DRIVE & NB--—-
SQL--
- fully counterclockwise
-fully counterclockwise
tuen not into the click-stop)
AF
RF
All other controls
All pushbutton switches---—
-——midrange
out (undepressed)
4.2 Initial Power Up, Band Selection
Plug the AC power cord into the wall outlet, and
press
the
POWER
switch.
The
meter
and
display
should
light
up,
with
the
display
indicating
the
default settings if the transceiver has not been
used before: LSB (lower sideband mode), VFO-A,
7.000.00 (MHz). Set the DIM selector (below the
left edge of the display) for comfortable dis-
play brightness.
Press
the
BAND/MCH
keys
(to
the
right
of
the
tuning
knob)
and
observe
the
band
changes
on
the
display.
In
the
default
(Ham)
mode,
the
HF
ama-
teur
bands
are
selected.
Press the H/G (ENT) key (at the lower left of the
keypad) once. The green GEN indicator just
beneath
the
frequency
display
should
glow.
Now
press the BAND/MCH keys and again observe the
band changes on the display. In this (General
Coverage) mode, the receiving frequency changes
by 500 kHz for each BAND step.
Ex fios

cs in
[E 0.500,00
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from) | 29.500.00
Press the H/G (ENT) key again to return to the
Ham mode, and then use the BAND/MCH keys to
select a band on which your antenna is res-
onant.
Note: The only difference between the Ham
and Gen modes is the stepping action of
the BAND keys, just described. The trans-
mitter is disabled in either mode when
tuned outside of the 500 kHz amateur band
segments (81.1). You can, however, use
both Gen and Ham modes to receive on any
frequency in the receiving range of the
FT-767GX, or to transmit in the amateur
bands,
4.3 Mode Selection
The six MODE keys just below the right side of
the display allow quick selection of operating
mode. Just press the key below the desired
label to select that mode.
Adjust the AF (volume) control (inner knob to
the left of the tuning knob) for a comfortable
audio volume, and the TONE control (outer
knob, to the right of the tuning knob) for
comfortable audio tone from the loudspeaker.
Note: The MUTE switch to the left of the
tuning knob disables audio output (in
which case the yellow indicator next to
the switch glows). This function allows
you to leave the AF control undisturbed
while putting the transceiver in standby
(leaving it on, but not using it). Make
sure that the MUTE switch is in the unde-
pressed (out) position and the indicator
is off before adjusting the AF control.
4.4 Tuning Methods
Aside from BAND switching, there are three
ways to tune the FT-767GX: the tuning knob,
the DOWN/UP keys just above the tuning knob,
labelled 'PROGRAM', and the microphone (mic)
up/down buttons. The tuning steps and rates
for each tuning method have both a normal and
a “fast! setting, determined by either the
FAST button on the front panel beneath the
keypad, or the FAST button on the microphone
(these two buttons have the same effect).
When either FAST button is depressed, the 10
Hz digit on the display is blanked.
(1) Tuning Knob
When
the
FAST
button
is
not
depressed
(ie.,
out),
the
tuning
knob
steps
are
10
Hz,
and
one
revolution
of
the
knob
tunes
either
5
or
10
kHz.
Press
the
FAST
button
to
change
100
Hz
steps.
One
revolution
now
tunes
50
or
100
kHz
(see
83.7
for
how
to
change
between
5/50
and
10/100
kHz/revolution).
Note: The D LOCK switch above and to the
left of the tuning knob will disable the
tuning knob when it is pressed. A red
indicator next to the switch will glow
when the knob is locked. Press the D LOCK
switch when you wish to avoid frequency
changes by inadvertent bumping of the
knob.
(2) DOWN/UP PROGRAM Keys
The tuning steps of these keys are program-
mable, and may be set differently for each
mode (SSB, CW, AM, FM and FSK). The default
steps (before programming) are 5 kHz on all
modes. Set the FAST button back to the unde-
pressed position, and try these keys while
watching the frequency display.
Notice that if you press and hold one of the
DOWN/UP
PROGRAM
keys
for
more
than
4-second,
manual scanning (repeated stepping) occurs at
about 3 steps/sec until you release the key.
The FAST button does not affect the step size
of the PROGRAM keys, but does change the man-
ual scanning rate. Press the FAST button and
notice that the rate increases to about 45
steps/sec.
Programming new tuning step sizes is described
in 54.8.
= (7 =

(3) UP/DWN Buttons on Microphone
The mic buttons can be selected to duplicate
either the steps of the tuning knob or of the
PROGRAM keys, by the setting of the MIC U/D
button (below the keypad to the right of the
front panel FAST button).
When the MIC U/D button is in its undepressed
(NOR) position, the mic button steps are the
same as the tuning knob (10 Hz or | kHz).
Manual scanning with the microphone buttons
provides a rate of about 50 steps/sec.
Press the MIC U/D button (to the PROG posi-
tion) and the steps and manual scanning rates
will change to those of the PROGRAM keys.
4.5 Keypad Frequency Entry
Aside from selecting your operating frequency
with the tuning methods described above, you
can also key in a desired frequency directly
using the I5 keys at the right side of the
front panel.
To activate the keys for frequency entry,
first press the orange FUNC key once. The
10's of MHz digit will start blinking, indi-
cating that you can now 'edit! a new frequency
on the display (while reception continues on
the original frequency).
While a display digit is blinking, each of the
keypad keys has its alternate function (label-
led in reverse lettering on each keyface)
activated, for changing the blinking digit.
Pressing any of the light gray keys will cause
the blinking digit to change to the number on
the face of the key, and the next digit to the
right will begin to blink. Pressing the H/G
(ENT) key will end the display editing and
enter the displayed frequency for operation.
EXAMPLE: Enter 14.25000 MHz
sa “ins = Es [E
Le [5]-[5]-— Fa [est
a a ves
While editing, if you want to leave a digit
unchanged, but change another digit further to
the right, press the TRACK (D') key to shift
the blinking digit one place to the right.
To shift the blinking digit one place to the
Jeft, press the PMS (V/U) key. Notice that
this key must be pressed to enter the hundreds
of MHz digit if the optional VHF or UHF band
modules are installed. If you press this key
and then decide that you want to stay on HF
(below 30 MHz), press VFO AB (CE) to cancel
edited changes, and then continue.
EXAMPLE: Enter 449.70000 MHz
(requires optional 440 MHz Band Module)
You can continue to key in digits down to 10
Hz (or stop any time). If you wish to cancel
all edited changes and re-edit, press VFO AB
(CE) to Clear Entries.
When the display shows the frequency you want,
press the H/G (ENT) key at the lower left
corner of the keypad. If the displayed fre-
quency is valid (below 30 MHz, or within the
range of any installed VHF/UHF band modules),
the receiving frequency will shift to that
displayed, as the blinking stops (if not, re-
enter a valid frequency).
Remember - the keypad keys now return to their
primary functions (labelled on the upper half
of each key).
4.6 Controls for Enhancing Reception
The functions described so far allow you to
receive any signal within the range of the FT-
767GX, in any mode. This section describes
features that allow you to tailor the receiver
to the mode in use and existing band condi-
tions.
4.6.1 Noise Blanker
The noise blanker controls consist of the NB
switch and green indicator immediately to the
left of the tuning knob, and the NB decay
adjustment (outer knob of the middle contro!
at the bottom left). When pulse type noise is
encountered on the receiving frequency, press
the NB switch and adjust the NB control from
counterclockwise just to the point where the
pulses are blanked.
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