MFJ MFJ-1886 Manual de usuario

MFJ-1886

Receive

Loop

Antenna

INSTRUCTION

MANUAL

CAUTION:

Read

All

Instructions

Before

Operating

Equipment

300

Industrial

Park

Road

Starkville,

39759

USA

Tel:

662-323-5869

Fax:

662-323-6551

2015

MFJ

Enterprises

Inc.

GENERAL

INSTALLATION

INSTRUCTIONS

FOR

MAST

MOUNTED

ANTENNAS:

Assemble

your

new

antenna

the

ground

the

installation

site.

Keep

separate

assembly

instructions

that

come

with

it.

Large

and

Amateur

beams

may

have

finally

assembled

the

tower

mast.

the

ground,

clamp

the

antenna

mast

and

connect

the

coaxial

cable

the

antenna,

insure

that

the

mast

does

not

fal

the

"wrong

way"

iit

should

get

away

during

the

installation

takecown,

durable

non-conductive

rope

should

secured

each

two

foot

level

the

mast

raised.

The

boss

stands

position

where

can

yank

pull

the

rapes

the

need

arise

deflect

the

falling

mast

away

from

hazards

(such

power

lines)

into

"safe

fall"

(such

yard

driveway).

The

ropes

are

tied

taut

the

base

the

mast

after

installation

and

place

the

vanous

levels.

install

selected

mounting

bracket

you

are

going

use quy

wire

installation

instead

mounting

bracket

instal

guy

anchor

Dols

“estimate

length

guy

wire

and

out

attach

mast

using

guy

ring

Carefully

take

antenna

and

mast

assembly

mounting

bracket

and

insert.

Tighten

camp

bolts.

case

guyed

installation,

wil

necessary

have

least

second

person

hold

the

mast

upnght

while

the

guy

wites

are

attached

and

tightened

the

anchor

bolts.

Install

adhoring

"DANGER’

label

packaged

antenna

hardware

kit

eye

level

your

mast.

JInstall

ground

rod

drain

off

static

electricity

build-up

and

connect

ground

wire

mast

and

ground

rod.

Use

special

ground

rods,

not

spare

piece

pipe.

EXAMPLE

ANTENNA

GROUNDING

PER

NATIONAL

ELECTRICAL

CODE

INSTRUCTIONS.

Use

No.10

AWG

copper

No.

AWG

larger

copper-clad

steel

bronze

wire,

ground

wires

for

both

mast

and

lead-in.

Securely

ciamp

the

wire

the

bottom

the

mast.

Secure

lead-in

wire

from

antenna

discharge

unit

and

mast

ground

wire:

house

with

stand-off

insulators

spaced

from

jeet

(1.2

meters)

feet

(1.8

meters)

apart.

Mount

antenna

discharge

unit

possible

where

the

lead-in

wire

ceniors

the

house.

Drill

hole

wall

(CAREFUL'There

are

wires

that

wall.

near

your

set

just

large

enough

permt

entry

cable.

Push

cable

through

hole

and

form

rain

drip

loop

cose

where

enters

the

house.

Put

small

amount

caulking

around

cable

where

enters

house

keep

out

drafts.

Install

static

electricity

discharge

unt.

Connect

antenna

cable

the

set

‘You

should

not

attempt

raise

mast

excess

feet

heightlength

(not

including

the

antenna

proper)

fully-ex-

tended

condition.

Thirty

fity

foot

tubular

masts

must

el-

evated,

section

time,

with

the

base

outer

section

se-

cured

place

with

guy

wires.

GET

PROFESSIONAL

HELP.

WARNING

INSTALLATION

THIS

PRODUCT

NEAR

POWER

LINES

DANGEROUS.

FOR

YOUR

SAFETY,

FOL-

LOW

THE

ENCLOSED

INSTALLATION

DIRECTIONS.

HOW

INSTALL

YOUR

OUTDOOR

ANTENNA

SAFELY

AC-

CORDANCE

WITH

THE

RECOMMENDATIONS

THE

U.S.

CON-

SUMER

PRODUCT

SAFETY

COMMISSION

YOU,

YOUR

ANTENNA,

AND

SAFETY

Each

year

hundreds

people

are

Killed,

mutilated

receive

severe

permanent

injuries

when

attempting

install

antenna,

many

these

cases,

the

victim

was

aware

the

danger

electrocution,

but did

not

take

adequate

steps

avoid

the

hazard

For

your

safety,

and

help

you

achieve

good

installation,

please

READ

and

the

safety

precautions

below.

THEY

MAY

SAVE

YOUR

LIFE!

Ifyou

are

installing

antenna

for

the

first

time,

please,

for

your

own

safety

well

others,

seek

PROFESSIONAL

ASSISTANCE.

Con-

sult

your

dealer.

can

explain

which

mounting

method

use

for

the

size

and

type

antenna

you

are

about

install

Select

your

installation

site

with

safety,

well

performance,

mind

(Detailed

information

Site

Selection

appears

separate

section

ofthis

booklet.)

REMEMBER:

ELECTRIC

POWER

LINES

AND

PHONE

LINES

LOOK

ALIKE.

FOR

YOUR

SAFETY,

ASSUME

THAT

ANY

OVERHEAD

LINES

CAN

KILL

YOU.

Calll

your

electric

power

company.

Tell

them

your

pians

and

ask

them

come

look

your

proposed

installation.

This

small

inconve-

nience

considering

YOUR

LIFE

STAKE.

Plan

your

installation

procedure

carefully

and

completely

before

you

begin,

Successful

raising

mast

tower

largely

matter

coordination.

Fach

person

should

assigned

specific

task,

and

should

know

what

and

when

it.

One

person

should

designated

the

"boss"

the

operation

call

out

instructions

and

watch

for

signs

trouble.

When

installing

your

antenna,

REMEMBER:

NOT

use

metal

ladder.

NOT

work

wet

windy

day.

dress

properly

-shoes

with

rubber

soles

and

heels,

rubber

gloves,

Jong

sleeve

shirt

jacket.

Ifthe

assembly

starts

drop,

get

away

from

and

let

itfall,

Remember,

the

antenna,

mast,

cable

and

metal

guy

wires

are

all

excellent

conduc-

tors

electrical

current.

Even

the

slightest

touch

any

these

parts

power

line

complete

electrical

path

through

the

antenna

and

the

installer-THAT’S

YOU!

Ifany

part

the

antenna

system

should

come

contact

with

power

line-DON'T

TOUGH

TRY

REMOVE

YOUR

SELF.

CALL

YOUR

LOCAL

POWER

COMPANY.

They

will

remove

safely.

accident

should

occur

with

the

power

lines

call

for

qualified

emergency

help

immediately.

931525

_AB

Introduction

Thank

you

for

purchasing

the

MFJ-1886

receive

loop

antenna.

You

new

antenna

composed

High

strength

material

for

excellent

rigidly

and

light

weight.

The

MFJ-1886

compact

and

excellent

for

restricted

space

portable

installations.

The

MFJ-1886

antenna

frequency

range

extends

from

30Mhz.

all

the

way

down

into

the

500

Khz

Broadcast

bands

The

antenna

has

strong

null

points

and

rotator

recommended

for

seeking

out

weak

stations

eliminating

noise

other

stations.

can

mounted

tripod

for

temporary

locations

any

mast

1-3/4

diameter

smaller

for

permanent

installation

Preparation

This

antenna

fully

assembled

and

ready

mount.

Pick

mounting

location

well

away

from

any

other

transmitting

antennas.

Transmitting

signals

the

MFJ-1886

will

damage

the

internal

amplifier.

This

antenna

can

used

indoors

desired.

Rotating

the

antenna

hand

good

way

null

noise

other

broadcast

stations

the

area.

Indoor

locations

tend

have

noise

sources

than

outdoor

locations

keep

that

mind

you

decide

use

the

antenna

inside.

the

box

Loop

Antenna

=———————>

Bias

Tee

——»

Power

Supply

——>

Sam

U-bolts

ry ry

WARNIN

KEEP

THIS

ANTENNA

AWAY

FROM

POWER

LINES

Never

mount

move

any

antenna

where

can

come

into

contact

with

power

lines.

this

antenna

comes

into

contact

with

power

lines,

can

KILL

you.

Never

mount

any

antenna

where

falls

could

come

into

contact

with

power

lines.

What

you

will

need

Coax

jumper

for

connecting

bias

tee

radio.

Coax

cable

for

connecting

bias

tee

loop

antenna

This

antenna

uses

SO-239

connectors.

your

receiver

uses

BNC

other

connectors,

you

will

need

adaptor.

on™

coax

Cable

os)

PASS

—>

BLOCK

—>

TOP

eee

VDC

NOT

Transmit

into

the

MFJ-1886

™

Transmitting

into

the

Loop

will

cause

)

permanent

damage.

BEEBE

BRB

RRP

eee

Receiver

Mounting

Use

the

two

supplied

u-bolts

secure

the

loop

your

mast

shown.

Your

mast

should

than

1-3/4

diameter

and

should

sturdy

enough

support

Side

view

the

MFJ-1886

antenna.

Customer

supplied

tripod

mast

SITE

SELECTION

Before

attempting

install

your

antenna,

think

where

you

can

best

place

your

antenna

for

safety

and

performance.

determine

safe

distance

from

wires,

power

lines

and

trees:

Measure

the

height

your

antenna.

Add

this

length

the

length

your

tower

mast,

and

then

Double

this

total

for

the

minimum

recommended

safe

distance.

you

are

unable

maintain

this

safe

distance,

STOP!

GET

PROFES-

SIONAL

HELP.

Many

antennas

are

supported

pipe

masts

attached

the

chimney,

roof

side

the

house.

Generally,

the

higher

the

antenna

above

the

ground,

the

better

performs.

Good

practice

install

your

antenna

about

feet

above

the

roof

line

and

away

from

power

lines

and

obstructions.

Remember

that

FCC

limits

your

antenna

height

feet.

possible,

find

mounting

place

directly

above

your

set,

where

the

antenna

wire

can

take

short,

vertical

drop

the

outside

the

house

for

entry

through

wall

window

near

the

set.

Your

dealer

carries

complete

line

installation

hardware.

AVOIDTHIS

LOCATION

power

lines

should

least

twice

the

height

the

antenna

and

mast

combined.

CHOOSE

PROPER

SUPPORT

AND

MOUNTING

METHOD

However

you

decide

mount

and

support

your

antenna

always

make

‘sure

that

safety

your

first

concern.

Some

the

common

installation

methods

are

illustrated

below.

ROOF

MOUNTED

ROOF

MOUNTING

The

swivel

feature

"universal"

type

mounting

brackets

makes

conve

nient

antenna

mount

for

flat

peaked

roofs.

One

clamp

type

brackat

used

with

guy

wires

equally

spaced

around

the

mast

and

anchored

the

roof

eaves

eyebolts.

Apply

roofing

compound

around

the

base

the

bracket,

screws

and

eyebolts

for

moisture

sealing.

TELESCOPING

MAST

Guy

wires

should

equally

spaced

least

three

directions.

Use

least

three

guy

wires

for

each

foot

section

mast.

SIDE

HOUSE

MOUNTING

The

safe

distance

from

power

lines

least

twice

the

height

antenna

and

mast

combined.

Where

roof

overhang

not

excessive,

the

side

the

house

provides

convenient

mounting,

Position

the

brackets

over

stud

possible,

one

above

the

other,

and

space

two

three

feet

apart.

For

metal

siding,

first

mark

mounting

holes,

then

drill

pilot

holes

through

the

siding

mounting

screws.

TOWER

Tower

safety

paramount

good

installation

and

requires

that

you

take

location,

tree

growth,

soil

depth

and

proximity

buildings

into

consider-

ation,

Tower

foundations

must

securely

based

solid

concrete/

tower

mounting

plate,

alternative

sink

4-6

foot

section

tower

into

concrete

base

for

extremely

rugged

mount.

Proper

guying

essential

safe

weather-resistant

installation

that

must

handle

severe

wind

and

best

accomplished

with

preformed

arips,

torque

brackets

and

tumbuckles.

When

working

towers

always

use

safety

belt

made

high

quality

web-type

material

CHIMNEY

MOUNTING

The

chimney

often

easy

and

conve-

nient

mounting

piace.

But

the

chimney

must

strong

enough

support

the

antenna

high

winds.

not

use

chimney

that

has

loose

bricks

mortar.

good

chimney

mount

makes

use

foot,

1-114"

diameter

steel

mast,

and

heavy

duty

two

strap

clamp-type

bracket.

Install

the

upper

bracket

just

below

the

top

course

bricks,

and

the

lower

bracket

two

three

feet

below

the

upper

bracket.

For

maximum

strength,

space

the

brack-

ets

far

apart

possible,

Operation

NULL

MAX

NULL

View

from

top

side

loop

Inside

outside

the

operation

the

antenna

basically

the

same.

Rotation

the

antenna

important

turning

hand

with

rotator

will

increase

the

effectiveness

receiving

distant

stations.

Two

null

points

the

antenna

will

allow

directional

receiving.

This

means

noise

other

interference

can

reduced

placing

the

noise

source

the

direction

the

null

point.

not

necessary

for

you

know

which

direction

the

antenna

pointed,

simply

rotate

the

antenna

until

you

hear

the

noise

away

greatly

reduced.

You

may

not

able

null

very

strong

stations

because

their

signal

may

coming

from

multiple

directions

(

bouncing

around

When

you

null

station,

allows

you

hear

other

signals

that

are

the

same

frequency

the

nulled

station.

You

may

able

hear

stations

that

you

were

not

able

hear

before.

Notes

MONTH

LIMITED

WARRANTY

MFJ

Enterprises,

Inc.

Warrants

the

original

owner

this

product,

manufactured

MFJ

Enterprises,

Inc.

and

purchased

from

authorized

dealer

directly

from

MFJ

Enterprises,

Inc.

free

from

defects

material

and

workmanship

for

period

months

from

date

purchase

provided

the

following

terms

this

warranty

are

satisfied.

The

purchaser

must

retain

the

dated

proof-of-purchase

(bill

sale,

canceled

check,

credit

card

money

order

receipt,

etc.)

describing

the

product

establish

the

validity

the

warranty

claim

and

submit

the

original

machine

reproduction

such

proof-of-purchase

MFJ

Enterprises,

Inc.

the

time

warranty

service.

MFJ

Enterprises,

Inc.

shall

have

the

discretion

deny

warranty

without

dated

proof-of-purchase.

Any

evidence

alteration,

erasure,

forgery

shall

cause

void

any

and

all

warranty

terms

immediately.

Enterprises,

Inc.

agrees

repair

replace

MFJ’s

option

without

charge

the

original

owner

any

defective

product

under

warranty,

provided

the

product

returned

postage

prepaid

MFI

Enterprises,

Inc.

with

personal

check,

cashiers

check,

money

order

for

$7.00

covering

postage

and

handling.

MFI

Enterprises,

Inc.

will

supply

replacement

parts

free

charge

for

any

MFJ

product

under

warranty

upon

request.

dated

proof-of-purchase

and

$5.00

personal

check,

cashiers

check,

money

order

must

provided

cover

postage

and

handling.

This

warranty

NOT

void

for

owners

who

attempt

repair

defective

units.

Technical

consultation

available

calling

(662)

323-5869.

This

warranty

does

not

apply

kits

sold

manufactured

MFJ

Enterprises,

Inc.

Wired

and

tested

board

products

are

covered

this

warranty

provided

only

the

wired

and

tested

board

product

returned.

Wired

and

tested

boards

installed

the

owner’s

cabinet

connected

switches,

jacks,

cables,

etc.

sent

MFJ

Enterprises,

Inc. will

returned

the

owner’s

expense

unrepaired.

Under

circumstances

MFJ

Enterprises,

Inc.

liable

for

consequential

damages

person

property

the

use

any

MFJ

products.

Out-of-warranty

Service:

MFJ

Enterprises,

Inc.

will

repair

any

out-of-warranty

product

provided

the

unit

shipped

prepaid.

All

repaired

units

will

shipped

COD

the

owner.

Repair

charges

will

added

the

COD

fee

unless

other

arrangements

are

made.

This

warranty

given

lieu

any

other

warranty

expressed

implied.

10.

MFJ

Enterprises,

Inc.

reserves

the

right

make

changes

improvements

design

manufacture

without

incurring

any

obligation

install

such

changes

upon

any

the

products

previously

manufactured.

11.

All

MFJ

products

serviced

in-warranty

out-of-warranty

should

addressed

MFJ

Enterprises,

Inc.,

300

Industrial

Park

Road,

Starkville,

Mississippi

39759,

USA

and

must

accompanied

letter

describing

the

problem

detail

along

with

copy

your

dated

proof-of-

purchase.

12.

This

warranty

gives

you

specific

rights,

and

you

may

also

have

other

rights,

which

vary

from

state

state.

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