S U Ba U D I Ble Tone; Am M O D; A U T O M A T I C A N T E N Na Tu N E; D U A L D Ig Ital V F O - Kenwood TS-440S Instruction Manual

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S u ba u d i ble tone

An o pt i o n a l s u b a u d i b l e tone u n it TU -8 i s ava i l a b l e for
i n sta l l at i o n i n the TS -440S for a c c e s s i n g 1 0 m eter FM
repeaters . This tone i s
TS-440S i s i n t h e S P L IT m o d e .
3-3-4 . AM mode
1 . S et the Meter s w it c h to PWR .
2 . S et t h e M O D E key to A M .
3 . P l a c e the S t a n d by s w it c h t o S END .
4. A dj u st t h e C A R control so t h a t t h e meter i n d i c ates
25 watt s .
5 . P l a c e t h e Meter s w i t c h to A L C .
6 . Adjust t h e M IC g a i n control so that t h e meter
d e f l e c t i o n does not exceed A L C zone o n voice
p e a k s .
3-4 . AUTO M ATIC ANTE N N A TU N ER
(Th e AT u n it AT-440 is req u ired for
this fu nction . )
The a u t o m a t i c a n t e n n a t u n e r o p e rates w it h i n t h e
a m at e u r ra d i o b a n d s from 3 . 5 t h ru 2 9 . 7 M Hz .
1 . E n s u re t h a t a n a n t e n n a d e s i g n e d f o r use w i t h i n t h e
b a n d you i n t e n d to ope rate o n i s p r o p e r l y c o n nect­
ed to t h e ante n n a term i n a l .
2 . Set the A U T O /T H R U s w i t c h to t h e A U T O posit i o n .
3 . P l a c e t h e AT TUNE s w i t c h to t h e ON posit i o n . The
AT T U N E i n d i c ator w i l l l i g ht and the tuner w i l l be­
gin t u n i n g . T h e n t h e CW mode i n d icator w i l l l i g h t .
4 . A f t e r a s h o rt p e r i o d t h e AT T U N E i n d i c a t o r w i l l g o
O F F a n d t h e m o t o r s w i l l stop t u rn i n g .
5 P l a c e t h e A T T U N E s w i t c h to O F F .
.
6 . T u n i n g is n o w c o m p lete d . Y o u m a y n o w ca rry out
normal c o m m u n i c a t i o n s .
1 . W h e n t h e AT TUNE s w itch is ON a n d the AT i n d i ­
cator l i g hts b u t t h e n g o e s o u t i m me d i at e l y it i s a n
i n d i c a t i o n t h at t h e a n t e n n a w a s n o t t h at f a r off
reso n a n c e and that t u n i n g has been c o m p leted .
2 . Norm a l operation is not pos s i b l e u n t i l t h e AT TUNE
s w i t c h h a s been t u r n e d OFF.
3 . If the motors do n ot stop turn ing afte r approximately
30 seconds, place the AT TUNE s w itch to OFF, and
then back t o ON a g a i n . The t u n e r w i l l atte m pt to
tune a g a i n , a n d s h o u l d find a good matc h . If the
tuner will n ot stop after several t r i e s it i n d i cates
some problem e x i sts w it h t h e antenna syste m .
R e adj u st t h e a n te n n a a n d fee d l i n e before atte m pt­
ing t o tune a g a i n .
3-5. DUAL DI G ITAL VFO ' s
O perat i o n a l conve n ience c a n be e n h anced thru t h e use
of both VFO A and VFO B .
activated w h e n e v e r t h e

3-5-1 . Why two VFO's

O c c a s i on a l l y D X stati o n s w i l l u t i l ize an o p e r at i o n a l
proced u re k n o w n a s s p l it fre q u e n c y operatio n . W h e n
the D X station i s i n t h i s mode he w i l l be t r a n s m itt i n g
o n o n e freq u e n c y a n d rec e i v i n g o n a n ot h e r . T h i s i s
d o n e i n o r d e r f o r t h e D X stati o n to be a b l e to recog­
n ize t h e calls of sta t i o n s during p i l e - u p s .
O l d e r transceive rs req u i red the use of a n exte r n a l V F O
to a l l ow t h i s s p l i t fre q u e n c y operation . The TS -440S ,
thru the use of m i c roprocessor contro l s , effectively pro­
vides two sepa rate VFOs i n the same package . Several
d iffe rent controls a n d s w it c h e s h a v e been provided t o
i n c re a s e t h e ope rators c o n ve n i e nc e w h e n faced w it h
t h i s type o f operat i o n . T h e u s e of these controls is d is ­
c u ssed b e l o w .

3-5-2. S pl it frequency

(a) A = B s w itch
D e p re s s i n g this s w itch c a u ses t h e data c o n t a i n e d
i n t h e i n active VFO (the VFO that is not c u rre n t l y
b e i n g d i s p l a ye d ) to c h a n g e to the s a m e d ata c o n ­
t a i n e d i n the a ct i v e VFO (t he o n e c u rrently d i s ­
p l a y e d ) . B o t h
t h e
c h a n g e d .
F o r e x a m p l e : V F O A is set at 7 M Hz i n L S B , a n d
VFO B i s 2 1 M Hz i n U S B . VFO A i s t h e a c t i v e V F O
( s h o w o n the d i s p la y ) . D e pres s i n g the A = B switch
w i l l c a u se VFO B to c h a n g e to 7 MHz i n LS B .
( b ) A/B sw itch
A l lo w s s e l e c t i o n of t h e d e s i red active VFO . E a c h
t i m e t h i s s w i t c h is d e p ressed the a c t i v e VFO w i l l
a ltern ate bet w e e n V F O A a n d V F O B .
( c ) S PLIT s w itch
A l l o w s t h e use of o n e VFO for t r a n s m i t , and the
oth e r for receive (S p l i t Fre q u e n c y operation ) . For
e x a m p l e : VFO A is t h e a ct i ve VFO , and VFO B i s
the in active V F O . D e press i n g the S P L IT s w i t c h w i l l
c a u s e t h e TS -4405 to receive on V F O A a n d trans­
m it o n VFO B. T h e mode of rec e p t i o n a n d trans­
m i s s i o n w i l l follow t h e mode c o n t a i n e d i n the
a pp ro p r i ate VFO m e m o r y . It is possible to work
c ross b a n d , c ross m o d e if d e s i red .
To avoid confusion d u r i n g contest, or p i l e - u p oper­
ations we reco m m e n d u s i n g VFO A for receive a n d
V F O B for t ra n s m i t .
( d ) T - F S ET s w itch
D epressing t h i s s w it c h will allow you to rapidly set
o r check the t ra n s m it f re q u e n c y , d u r i n g S P L I T
operat i o n s , w it h o u t t h e n e e d of a ct u a l l y t ra n s ­
m i tt i n g .
T h i s switch is e s p e c i a l l y c o n v e n i e nt w h e n you a re
t r y i n g to locate t h e t r a n s m i t freq u e n c y of t h e sta­
tion c u rrently i n contact with the DX stat i o n , s i n c e
f re q u e n c y a n d m o d e a re
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