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OPERATION and MAINTENANCE
MODEL 4OO SERIES
S]NGLE SIDEBAND TRANSCEIVER
I N T R O D U C T I O N
The Swan Model 400 Single Sideband
T r a n s c e i v e r ,
t o g e t h e r w i t h i t s a c c e s -
s o r r e 6 a n d o p t i o n a l e q u i p r n e n t , i s
d e s i g n e d t o b e u s e d i n e i t h e r C W o r
SSB mode6 on all portionB of the 80-,
4 0 - , 2 0 - ,
l 5 - ,
a n d I 0 - m e t e r
a m a t e u r
radio bands.
Operation
on AM (Single
Sidebaltd rrith Carrie!)
is possible by
zero-beating
the !eceived
signal.
The Swan 400 generates the single side-
band signal by mean6 of a crystal
lattice
filter,
and the tran6ceive
op€ration
auto-
matically
tunes the transmitter
to the
r e c e i v e d f r e q u e n c y .
P r o v i 6 i o n s a ! e
i n c l u d e d i n t h e t r a n s c e i v e r J o r o p e ! a -
tion on either upper or lower
sideband,
and provisiong
for cohplete
band
coveraSe are included within the basic
B a 6 i c c i r c u i t r y
o f t h e s i n g l e c o n v e r s i o n
de6ign has been proven in thouaands of
hours ot opeiation
of the very popular
S w a n 2 4 0 a n d 3 5 0 s e r i e s o f t r a n s c e i v e r s .
Mechanical,
electrical,
and thermal
stability
are exceptionally
high,
and all
oscillators
are voltage legulated
and
ternperature
cornpensated.
PuBh-to-
talk opeiation
is po6sible in aU installa-
tiolrs,
and operation with a tv,/o-contact
microphone is possible by use of the
FuDction Switch or the VOX acces sory.
T h e b a s i c t l a n s c e i v e ! i B d e B i g n c d f o r
use with either the Model 410 Frequency
Control Unit, which provides full covei-
age of all portions o{ the amateur bandd,
or with the Model 4068 Frequency Colttlol
Unit which providea coveiage of all phone
portiona of the 80 throrrgh l5 rneter bandE
and a 500 kc portion of the l0-meter
band, With a suitable power 6upply,
operation may be fixed, portabl€ or hobile.
Power input on all banda exceeds 400
Watts, PEP, on single sideband, and
320 Watts DC input on CW.
The baaic
t ranac e ive r includeB autoDatic gain
control, (AGC) automatic lirniting control,
(ALC), a electable sideband, grid-block
keying, calibrator,
and speaker
Part I of this Manual covers the basic
transceiver.
Parts II and lfl cover the
Models 4068 and 410 Frequency Conttol
Unita, !e6pectively.
Part IV covers the
recohEended power Bupplies, Model
f f 7 - X B o r l l ? - X C l o r a c o p e r a t i o n a n d
M o d e l l 4 - l l 7
f o r l 2 v o l t d c o p e r a t i o n .
Models a!e also available for 230 volt
AC oDeration.
O.cmr
E L E C T R O N I C S
C O R P .
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