MFJ VERSA TUNER III Owner's Manual

MFJ

VERSA

TUNER

III

MODEL

OWNER'S MANUAL

MFJ-9628

CAUTION:

MFJ ENTERPRISES, INC.

P.

..

Read

0.

All instructions Before Operating Equipment.

BOX 494, MISSISSIPPI STATE, MS. 39762, USA

The

MFJ-962B
signed
is

designed

and

will

The

cross
power,

level
scale
200W.
scale.
crossed.

for

use

handle

needle

set

the

on

the

is

2KW

Reflected

SWR

No

VERSA

in

to

match

1.5

POWER
forward
and

is

indicated

SWR

sensitivity

INTRODUCTION

TUNER

Amateur

most

KW

PEP
SWR/WATTMETER

meter

Maximum
power

is
switch
scale.

con

III

is
transmitting
antenna

RF

output

easy

power
by

to

to

Hi

Maximum

reading

be

read
the
adjustment

an

antenna

systems

use.
or

from

SWR

systems.

power.

Lo
power

for

line

is

from

To
then

the

where

needed

tuning

1.8

read

read
reading
the

Lo

reflected

the

unit

The

tuner

to

30

FORWARD

the

power

on

the

scale

power

two

to

read

de-

MHz,

Hi

is

needles

SWR.

The

ANTENNA

fed

antennas
wire
circuit
specially
frequency
rite
good

1.

2.

antenna,

toroid

low

Locate
position.
TUKER

Install

as

shown
between
marked

EXCITER

SELECTOR

through

and

employs

designed
response.

frequency

the

IS

the
the

TRANSMITTER

a

core

tuner
NOTE:

NOT

ACCESSIBLE

tuner

in

the
transmitter

a

coax

4:1

to

with

and

in
LOCATE

diagram.

AF

ANTENNA
switch

the

balanced
minimize

The

a

minimum

high
INSTALLTION
a

between

on

AMP.

SELECTOR

allows
tuner
bypass

balun

ferquency

convenient

THE
DURING

the
Use

output

the

tuner.

the

or

direct,

position.

to

unbalanced

the

power

uses

TUNER

a

high

number

response.

location

SO

OPERAT~ON.

transmitter
coax

(OPTIONAL}

SWRIWATl

and

METER

cable
the

selection

a

balanced

The

loss

permeability

of

turns

THAT

such

S0-239

of

two

balanced

transformer

and

give

to

give

at

the

operating

THE

REAR

and

the
as

RG-8/U

connector

MFJ-8828

coax

line/

line

(balun)

good

fer­both

OF

THE

antennas

y

3.

I

Connect
A.

Coax
two
same

B.

Balanced
marked

C.

Random
to
binding
NOTE:

RF

the
cable

coax

time.

the

ROUTE

BURN

antenna(s)

feed

lines

feed
BALANCED
wire
WIRE

posts
HAZARD.

lines

antennas
terminal.

as

ALL

I

to

the

lines

may

LINE.

marked

SINGLE WIRE

to

be

connected

are

or

Install

I

tuner

the

coax

connected
single
on

the

AND

1

as

connectors.

to

the

to

wire
a

jumper

tuner

BAL.

follows:

tuner

the

terminals

lines

between
when
LINES

J

__._

at

are
using

TO

Up

to

the

connected

the
wire

PREVENT

ant.