Transmitter; Controls, Switches Connectors; Front Panel Controls - Yaesu FT-767GX Operating Manual

2.0
CD®®® ®
2.1
FRONT PANEL C ONTROLS
(1) POWER
This b u t t o n t u r n s t h e t r a n s c ei v e r on a nd o f f.
(2) MOX
This but t on m anually activates the t r ansmit ter
when d e p r e s s ed . Thi s b u t t o n m us t be i n t h e
u nd e p r e s s ed p o si ti o n
a u t o m a ti c t r a n s mi t t e r a c ti v a ti o n vi a t h e VO X
and semi break -in or Q S K systems.
(3) MI C Jack
This 8- pin j a c k a c c e p t s t h e M D - 188 D e s k t o p
Mic rophone, M H-1B8 Handie S canning Microphone,
or the YM - 4 8A H andie DTMF Scanning Microphone.
Mic pi n o u t s a r e sh o w n on p ag e 9 .
microphone input impedance is 500 t o 600 ohm s.
(4) PHONES J ack
This 3 - c o n t a c t j a c k a c c e p t s ei t h e r s t e r e o o r
m o n a u r a l h e ad p h o n e s wi t h a 2 - o r 3 - c o n t a c t
p l ug. W h e n a p l ug is i n s e r t ed t h e i n t e r n a l o r
e x t e r n al l o ud s p e a k e r i s dis a b l ed .
(5) MIC ---@- - DRIVE
The i n n e r M I C c o n t r o l s e t s t h e t r a n s mi t t e r
audio amplifier gain during S S B and AM trans­
missi o n . O u t p u t p o w e r f o r S S B t r a n s mi s si o n
and m od u l a ti o n l eve l f o r A M t r a n s m i s si o n a r e
s e t b y t his c o n t r o l w h e n t h e spe e c h p r o c e s s o r
i s o f f .
The DR IVE control sets the transmit t e r carrier
l e v e l fo r C W , A M , F S K a nd FM t r a n s mi s si o n .
Also, when t h e speech processor i s used i n S S B
or A M m od e s , t his c o n t r o l s e t s t h e p r o c e s s o r
d rive l e v e l .
CONTROLS, SWITCHES
®
f o r r e c e p ti o n , a nd
A c c e p t ab l e
&
CONNECTORS
(6)
SQL---@- - NB
The i n n e r S Q L ( s q ue l c h ) c o n t ro l s e t s t h e si g ­
n a l t h r e sh o ld l e v e l a t which r e c ei v e r a udio i s
muted, i n a l l m odes.
T o n e S q u e l c h U n i t is i n s t a l l ed ,
k n o b fu l l y c o u n t e rc l o c k wi s e i n t o t h e T S Q L
fo r p o s 1 t 1 0 n a c ti v a t e s
S e t t his c on t r o l c o u n t e r c l o c k wi s e b u t n o t i n t o
t h e c li c k - s t o p f o r u n s q u e l c h ed r e c e p ti o n .
Th e o u t e r NB (Noi s e B l a n k e r ) c o n t ro l ad j u s t s
the width o f t h e b l anking pulse when the noise
b l an k e r i s a c ti v a t ed d u ri ng r e c e p ti o n .
v e ry f a r c l o c k wi s e r e c ei v e r a udi o m ay b e dis ­
t o r ted.
(7)
AF% RF
Th e i n n e r A F g ai n c o n t r o l ad j u s t s the a udi o
v o l u m e o f the r e c ei v e r o u t p u t i n th e s p e a k e r
o r h e ad phones.
Th e o u t e r RF g ai n c o n t r o l ad j u s t s t h e g ai n o f
the r e c ei v e r R F a nd I F a m p li fi e r s .
t r o l i s n o r m a l l y
m axi m u m s e n si tivi ty.
clockwise from m aximum, the S-m e t er minimum
d e f l e c ti o n p oi n t wi l l m o ve up th e s c a l e .
p e a k def l e c ti o n
r e m ai n the s a m e i f i t i s g r e a t e r
l e v e l s e t b y thi s c o n t r o l ,
wi l l b e i n s e n si ti v e t o w e a k e r sig n a l s.
c o n t r o l a l s o
sh o u ld b e p r e s e t f u l l y c l o c k wi s e wh e n s e t ti ng
the s q u e l ch t h r e sh o ld .
- 4 -
When the optional FTS -8
t u r ni n g t hi s
t o n e s q u el c h ( F M o n l y ) .
s e t f u l l y c l o c k wi s e
Wh e n r o t a t ed co u n t e r ­
f o r a p a r ti c u l a r sign a l
b u t the r e c ei v e r
a f f e c t s t h e S QL s e t ting,
I f s e t
Thi s c o n ­
f o r
Th e
wi l l
th a n t h e
Thi s
a nd