Collins KWS-1 Manuel d'utilisateur télécharger pdf (Page 3)

Thanseeiver

The

KWM-2A

unmatched in

performance

and depend-

ability for

mobile and fixed station applications.

The KWM-2A

power

input is 175 watts PEP on SSB

or 160 watts

on CW. It transmits on voice

or modifled

break-in CW. An additional crystal board

permits the op-

erator

switch-select

up to

14 optional crystais

which

can

be outside the amateur bands.

Frequencies near

range

edges

may

require

trimmer adjustment

for

proper opera-

tion. The KWM-2A can

be used

for RTTY

when a 516F-

2 Power

Supply and external cooling

air are employed.

The transceiver is linished in light

gray enamel with

a simulated leather

front

panel

to match the S/Line.

Speeilications

Compactness

and efficiency of the KWM-2A are

achieved

through Collins' advanced design in which all

tuned

circuits and several tubes function in the dual

role

of transmitting

and

receiving.

The same

oscillators,

Mechanical

Filter, and RF amplifier serye both

the trans-

mitter

and receiver. CW break-in and sidetone

monitorine

circuits

are

built

in.

Easily

accessible

controls on the front

panel of the

KWM-2A include the

OFF-ON-NB-CAL

Switch.

EX-

CITER

TUNING,

ZERO

SET, PA

TUNING, LOAD-

ING,

MIC GAIN,

BAND Switch, AF GAIN,

RF GAIN,

EMISSION,

and METER Switch.

FREOUENCY

RANGE:

meters

3.4-3.6 MHz, 3.6-3.8

MHz,

and 3.8-4.0

MHz.

40 mete$

7.0-1.2

MHz and'1.2-7.4

MHz.

meters

14.0-14.2 MH.z ^nd 14.2-

14.4

Ml{a

WWV

14.8-15.0 MHz.

15 meten

21.0-21.2 M}fZ,21.2-27.4

MHz, and 21.4-21.6

MHz.

l0 meters

28.5-28.-l MHz

With optional crystals any 200 kHz range

can be tuned from 3.4 to 30.0 MHz

except

5.0 to

6.5 MHz.

MooE:

SSB

(either

sideband selectable),

CW,

or RTTY with 516F-2

power

supply

and extemal cooling

air.

TYPE

OF SERVICE:

SSB

continuous; CW

50% duty cycle.

POWER REQUIREMENTS:

Power can

delivered by an external supply

such as

the 516F-2, PM-2,

MP-1, or 516E-2

which

must furnish 800

v dc at 230 mat

285 v dc at 210 ma; 6.3

v at 11 amps,

and from

-55

80 v dc with no

cur-

rent requirement. Heater supply

may also

be 12.6

5.5 amps or

24 v at 2.75

amps. Reduced

final

plate

voltage

and

currcnt

typical of mobile

installations

will

reduce

powet

output specifications.

With

the

516F-2,

power

consumption

is ap-

proximately

190

watts in receive,

430

watts in

lock-key, and

290

watts

normal

volce rransmlr,

PLATE INPUT:

175 watts PEP on SSB;

I 60 watts on CW.

POWER OUTPUTT

3.4-15 MHz,

100 watts

PEP;

15-25 MHz,90

watts PEP;25-30

MHz, 80 watts PEP into 50 ohms.

HARMONIC AND OTHER SPURIOUS RA-

OIATION:

Carrier suppression

-50

db;

unwanted sideband

50 db;

oscillator

feed-through and/or mixer

products 50

except

40 db at

3500

kHz. Second

harmonic

db. Third order distortion

-30

db.

NOISE LEVEL:40

below

single

tone

carrler.

CALIBRATOR:

100

kHz crystal oscillator.

FREOUENCY STABILITY: Within 100 Hz

during any one-hour

period following 20

minute warm

up. Not more

than

100

with !10Vo line voltage

variation.

CALIBRATION

ACCURACY:

1 kHz

after

midband calibration.

BACKLASH:

Not more

than 50 Hz.

VISUAL DIAL

ACCURACY: 200

on all

bands.

OUTPUT IMPEDANCE: Va able, 50 ohms

nominal, capable

of matching

up to

2:1

VSWR.

KEYING

CHARACTERISTICS: Keying is

free

chirps and

clicks.

Break-in CW

and sidetone

provided.

AUDIO INPUT:

High

impedance micro-

phone

or 3128-4,-5

phone

patch.

AUDIO FREOUENCY

FESPONSE:

300-

2400 Hz nominal,

determined by Me-

chanical

Filter.

AUDIO

COMPRESSION

CHARACTERIS-

TICS:

ALC operates

and

RF am-

plifier

stages and is capable of 10

compression.

RF FEEDBACK:

Approximately

db of

RF feedback

around

and driver for

improved

linearity.

RECEIVEF

SENSITIVITY:

0.5 uv for l0 db

signal-plus-noise-to-noise

ratio

in ama-

teur bands.

RECEIVER

SELECTIVITY:

2.1 kHz

nom-

inal

bandwidth at 6 db down; 4.2 kHz

bandwidth at 60 db dowu as determined

Mechanical Filter.

RECEIVER

SPURIOUS RESPONSE:

Image

rejection better than 40 db. Intemal

spurious below I uv

equivalent

antenna

input.

RECEIVER OUTPUT LEVEL:

1.0 wall maxi-

mum.

AUTOMATIC GAIN CONTROL:

The audio

output level does not change more

than

20 db

the input

signal is changed

from

to I

v. Fast

attack

and slow re-

lease

provide

excellent AVC action

voice

and CW.

VfBRATfONS:

1O-33

I{z.

AMBIENT TEMPERATURE:

-50'

AMB|ENT HUMIDITY:

O7o

-9O%.

ALTITUDE:0-10,000

ft.

PROTECTIVE OEVICES:

cage

is inter-

locked.

SIZE:

With feet

143/a

W,73/q"

14" D

(31.4'7

cm W,

19.69

cm H,

35.56

cm D).

WEIGHT:

18 lbs., 3 oz.

(8.25

kg).

1 2 3 4 5 6 7 8 ... 15 16

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Collins KWS-1 Manuel d'utilisateur Page 3

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