Collins KWS-1 Manuel d'utilisateur télécharger pdf (Page 11)

LinearAmplffier

Add the Collins

305-1

Linear

Amplifier

to

your

station and

you

will

have the cleanest,

strongest

signal on the

air. Thc 305-1

Linear Amplifier

features:

RF

Inverse Feedback for better

linearity.

Instant Switching

between

1ow and fu1l kilowatt

power.

Quick

and Accurate

Tuning,

olTering the am-

ateur

a bonus in ease of

operation and

optimum

operating efficiency.

Requiring

70-100 watts driving

power

(supplied

by

the Collins 32S-3A

Transmitter or KWM-2A

Trans-

ceiver),

the 305-1 Linear Amplifier

provides your

SSB

and CW

station with the full legal

power

input for SSB

(1

kw

average) or I kw input for CW transmission.

All the

30S-l controls are easily accessible

on the

front panel.

This front

panel

design allows

you to tune

the

305-1 swiftly, surely, and easily. With the

push

of a

button

you

can

switch instantly from the

100 watt

power

level of

your

transmitter to the

full kilowatt output of the

305-1;

yet you

retain high linearity and clean signal.

The

30S-l can also be tuned to frequencies outside

of the

amatcLlr

bands.

Automatic load control voltage from the 305-1

is

fed

back to the transmitter, assuring

you

of maximum

talking

power

without overdriving

and

distortion. Collins'

automatic load conlrol, in combination with inverse

feed-

ing

general

covcrage

bands can be ac-

commodated I

FREOUENCY BAND TOTAL COVERAGE

Automatic

Load

Control, assuring a clean,

distortion-free

signal.

Cooling

System which operates

quietly

and effi-

clen y.

Simple

and Direct

Connection between the

30S-1

and the exciter and station control unit.

Prolective

Circuitry

which

protects tubes and

other components from damage due to

mistuning

or malfunction.

back, is a

major design

feature in

the 305-1

which

gives

you

more talking

power with a

cleaner signal

than

any

other

linear

amplifier

in the amateur

field.

The 305-1 is a completely

self-contained,

single

tube,

grounded grid

linear amplifier.

The tube used

is the

com-

mercially popular

Eimac

4CX1000A.

A multimeter on the

front

panel

is switchable

to read

tuning and loading, bias

voltage, filament

current,

grid

current, screen current, and

plate voltage.

Correct tuning and

loading is

quick and easy

on

the

30S- |

. With the multimeter

selector switch

in the

Tuning

and Loading

position,

comparator

circuitry allows

you to

simply

adjust

the P.A. tuning and

loading

controls to

zero the meter.

Conservativeiy

designed around

the highest

quality

con]ponents, the 305-1 is rated for

continuous

duty

on

SSB

and a 50% duty

cycle on RTTY and

slow-scan

TV.

(r

.r1

Dl)ecurc{lrlons

MOOE:

SSB, CW, RTTY, or SSTV

TYPE OF SERVICE:

Attended operation

SSB continuous; CW 50% duty cycle.

POWER

REOUIREMENTS:

1 15 v or 230 v,

50-60 Hz single phase, 2000 watts.

DRIVE

POWER:

70 100 watts for full out-

pLrt.

PLATE POWER INPUT:

Nominal a\erage.

1000 watts on SSB; 1000

watts on CW.

FREQUENCY RANGE:

The 80,40,20, 15

and 10 meter amateur

bands. By rctun-

ing input coils

as necessary, the

follow-

14.0 MHz 10.0-15.0 MHz

21.0

MHz

15.O-22.O MHz

28.0 MHz

20.0-30.0 MHz

HABMONIC AND OTHER SPURIOUS RA.

DIATION:

Second

harmonic 40 db; all

othe6 at

least 50 db down. Third order

distortion at 1000

watts PEP

output

30

db bclow signal.

NOISE LEVEL:

40 db below

single

tone

carrier.

oUTPUT IMPEDANcE:

Variable;

50 ohms

nominal,

unbalanced

with not more

than

2:1 SWR.

AMBIENT

TEMPERATURE:

15'-45"

C.

AMBIENT

HUMIDITY RANGE: OVo-9O%.

ALTITUDE:

0-6,000 ft.

SIZEt

17" V,/,3Os/2"

H, 183/c"

D

(43.18

cm W,

'77.79

cm H, 47.63

ctt D).

wElcHT:

160 lbs.

(72.58

kg).

3.5 MHz

'7.O

MHz

3.4-6.0 MHz

6.0-10.0 MHz

ll

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