Swann 400 - Page 2

OPERATION and MAINTENANCE
MODEL 4OO SERIES
S]NGLE SIDEBAND TRANSCEIVER
INTRODUCTION
The
Swan
Model 400
Single Sideband
Transceiver, together with its acces-
sorre6 and
optional
equiprnent, is
designed to be used in either
CW
or
SSB
mode6 on all
portionB
of the
80-,
40-,
20-,
l5-, and I0-meter
amateur
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
receivedfrequency.
Provi6ions a!e
included
in the transceiver Jor ope!a-
tion on either
upper or
lower sideband,
and
provisiong for cohplete band
coveraSe are
included within the basic
Ba6ic
circuitry
of the single conversion
de6ign
has
been
proven
in thouaands of
hours
ot
opeiation of the very
popular
Swan 240
and 350 series
of transceivers.
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.
The basic tlansceive! iB deBigncd
for
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
ff7-XB or ll?-XC lor
ac
operation
and
Model
l4-ll7 for l2
volt dc
operation.
Models a!e
also available
for
230 volt
AC
oDeration.
O.cmr
ELECTRONICS
CORP.