Yaesu FT-767GX, Руководство по эксплуатации

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U HF. Then speak into the microphone and ad­
vance the M I C gain control until the PO m eter
j ust s t a r t s to i nc r e a s e on vo i c e peaks.
Do
not advance the M I C gain further, or overmod­
u l ation ( an d d i s to r t io n ) m ay resu l t.
I f d e s i r e d, you can a c t i v a t e t h e R f s p e e c h
processor for A M transm issions.
Set the METER
selector to COMP, and press the PRO C switch.
Then close t he PTT and adjust the PRO C control
fo r l O dB co m p r e ssion (or less ) d u r i ng vo ice
peaks on the C O MP m e t e r scale ( u se the I f
mon i to r to l i s t e n to you r t r a n s m i s s io n s as
described fo r S S B t r a n s m i ss ion ) .
4 . 8 Programmable Tuning Steps
Di fferent t u n i ng ( a nd s c a n ning ) s t eps c a n b e
p rog r a m m e d by t h e o p e r a to r fo r each m o d e o f
em1ss10n.
Minimum steps are 10 Hz, and m ax­
imum steps are 9 9. 9 9 kHz. Program mab le steps
are active when tuning by the PROGRAM DOWN/UP
keys above t h e t u n i ng knob, or by the micro ­
phone UP/OWN buttons when the MI C U/D switch
is pressed. The d e f a u l t s t e p siz e is 5 kHz i n
a l l mod es.
To reprogram tuning steps;
( 1 ) Select the mode for which the new steps
The VOX system and clarifier control can also
are to be program med.
be used with AM transmission ( see § 4. 7.2 ) .
4. 7.6 RTTY, H F Packet
&
S STV Transm ission
Transm ission of narrowband FSK ( F l ; RTTY, S STV
and Be l l 103 H F p a c k e t ) r e q u i r e s i n p u t o f the
( equal level ) audio tones (AFSK) at the PAT C H
IN jack o n the rear panel. Remove the m icro­
phone f ro m t h e M I C j ack so that ex t r a n eous
sou nds do no t i n t e r fere wi t h you r t r a n s m i t t ed
signal.
The PRO C and TX S H I FT switches must
be o f f.
Press the VOX button to allow automatic trans­
mit/receive switching ( FULL BK- IN m ay also be
used ), and select the FSK mode. Note that the
disp l ayed frequency is the S S B c a r r i e r fre­
quency, so your actual MARK and SPA CE frequen ­
c i es w i l l b e d i s p l aced fro m the d i s p l ay b y t h e
audio fre q u e n c i e s o f the to nes.
Use the M I C gain control to adjust power out ­
p u t wh i l e t ra n s m i t ti ng : i f u s i ng fu l l power
( 100 w a t t s ) , t r a n s m i ssio n s m u s t be li m i t e d to
20 m i nu t e s to avo i d overh e a ting the power
supp l y.
A f t e r t r a n s mi t ting, i f the coo ling f a n i s on,
do n ' t t u r n the POWER swi t c h o f f u n t i l t h e s e t
has h a d a f e w mi n u t e s t o coo l and t h e f a n
switch o f f.
See § 4. 17 for VHF packet operation.
( 2 ) Press the orange FUN C key : the 10 MHz
f r e q u e n c y digi t on t h e di s p l a y w i l l
b link.
( 3) Press either the DOWN or UP PROGRAM
key: the display will now show the pre­
s e n t s t e p siz e, wi t h the 10 kHz digi t
o f s t ep siz e b li nki ng.
( 4 ) Using the ten numbered keys, key in the
desired s t e p siz e fo r t his mode. Fo r
ex a m p l e, to s e t 2. 5 kHz s t e ps, p r e s s
0250.
( 5 ) Press t h e H/G ( ENT ) key to e n t e r t h e
new step siz e into t h e step memory.
Now, when you press the PROGRAM DOWN/UP keys
t h e t u ning s t eps w i l l be as you h a v e p ro ­
gram med when operating on the same mode.
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