Yaesu FT-767GX, Operating Manual

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(7) MARK
&
LINEAR AMP
Swi tches
The MARK swi t c h ac tiv a t e s a c a libr a t i ng
c a r r i e r at m u l ti p l e s o f 25 k H z t hroughout
the Hf range of the receiver. This switch
s h o u l d be Off ( u ndepresse d ) for no r m a l
o pe r a t i on.
The L INEAR switch, when depressed ( posi ­
tion 1) enables QSK transmit/receive swi t ­
c h i n g c o n t r ol b y a n e x t e r n al line a r
a m pli f i e r w h ich i s d e s i g n e d f o r f ull
b reak-in operation, such as the Y aesu FL-
7000. Whe n operating the FT-767GX without
a li ne a r amp, or w i t h a non - Q SK li ne ar
amp, t his switch must be in t he unde pre s ­
s e d p o s i t ion ( p osi t i on 2 ) .
(8) KEY
Jack
T his � - inch, 3-con t ac t stereo j ack acce p t s a
CW ke y or ke ye r paddles ( fo r t he b u ilt - in
elec t r o n ic keye r ) , or your e x t e rnal elec t r onic
keyer. DO NOT U SE A 2-CONTACT PLUG in this
j ack. P i nou t is shown below. Ke y up volt age
i s 4.5V, and key down current is 2 mA.
(9)
BAND D ATA & CAT
DIN Jacks
The 8-pin BAND DAT A j ack provides control
an d b a n d selec t i o n d a t a t o t he FL -7000
L i ne ar Am p l i fier.
Pinout i s s h own be l ow.
Pins 4 -
7
are 500 kHz band selection data
in parallel BCD format, TTL levels. Pin 8
i n con nec ted i n p a r a llel w i t h t he L INEAR
switch. Pinout is shown below.
The 6- p in CAT j a ck i nclu de s se r i al 1/0,
A G C and PTT d a t a for e x t e r n al c o m p u t e r
c o n t r o l . D a t a r a te i s 4800 b i t s/ sec, TTL
leve l . P inout is s h ow n below.
(IO)
PTT Jack
This RCA j a ck i s connecte d in p a r a l lel wit h
t h e MO X sw i tch, a n d a l l ows act i v a t i o n o f t he
t r an s mit te r by e x t e r n a l de v ice s, suc h as a
packet TN C or a footswitch.
Open -circuit vol­
tage is 8V D C , and closed-circuit current is 8
mA.
(11) DELAY & ANTI-TRIP
Controls
The DELAY control sets the hang t i me between
ke y up a n d re ce iver re activ a tion o f t he VO X
and CW semi break-in functions. The ANTI -TR I P
c o n t r o l se t s the level of neg a t i ve fee d b a ck
from the speaker audio output to the VOX amp­
li fie r, t o preven t spe ake r audio f r o m t r i p p i ng
the VOX.
(12) IF Unit jacks
EXT SPKR
is a 2-con t ac t mini p h o ne j ack
for connection of an external 4 - to 8 - ohm
speaker, such as the SP-102.
AF O UT
is a phono j ack whi c h provides
con s t a n t - level l OO m V audi o ou t p u t a t 10 -
ki l o h m s , for a n ex t e r n a l t a pe recorder or
a u dio a m p li fie r. The audio a t t his j a ck is
not affected by the AF or TONE controls.
DATA IN/OUT
is a 3 - c o n t ac t mini ste reo
j ack which al lows direct connection to the
FM receiver demodulator and FM transmit ter
m o du l a t o r, for digi t a l t e r m i n a l e q uip m e n t
such as a packet radio TN C o n V H F o r UHF.
No p re - or de-e m ph as i s is a d d e d t o t he
sig n a l s a t this j a ck. I n put i m p e d a nce
( ring c o n t a c t ) is 600 oh m s ( fo r F M m ode
o n l y ) and i n p u t sig n a l l eve l sh o u l d be 30
m Vrms. Output (center contact, all modes )
level is 800 mVrms maxi mum a t 1 0 kilohms.
CD
+13V
CV
TX GND
@TUN CNTL
�
�
)
BA ND DATA
@C
Cl)D
@LINEAR
DATA IN
DATA OUT
GND
BAND DATA PLUG PINOUT
KEY PLUG PINOUT
CD
GND (common)
CV
SO (serial output)
®
SI (serial input)
@
PTT (push-to-talk line)
@
A GC
( O
to-4V Hi-Z)
DA TA IN/OUT PLUG PINOUT
@NC
C AT PLUG PINOUT
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