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MFJ-1886

Receive

Loop

Antenna

INSTRUCTION

MANUAL

CAUTION:

Read

All

Instructions

Before

Operating

Equipment

Mw

300

Industrial

Park

Road

Starkville,

MS

39759

USA

Tel:

662-323-5869

Fax:

662-323-6551

COPYRIGHT

©

2015

MFJ

Enterprises

Inc.

GENERAL

INSTALLATION

INSTRUCTIONS

FOR

MAST

MOUNTED

ANTENNAS:

1,

Assemble

your

new

antenna

cn

the

ground

at

the

installation

site.

Keep

separate

assembly

instructions

that

come

with

it.

Large

CB

and

Amateur

beams

may

have

to

be

finally

assembled

on

the

tower

or

mast.

2.

On

the

ground,

clamp

the

antenna

to

mast

and

connect

the

coaxial

cable

to

the

antenna,

3.

To

insure

that

the

mast

does

not

fal

the

"wrong

way"

iit

should

get

away

during

the

installation

or

takecown,

durable

non-conductive

rope

should

be

secured

at

each

two

foot

level

as

the

mast

is

raised.

The

boss

stands

in

a

position

where

he

can

yank

or

pull

the

rapes

if

the

need

arise

to

deflect

the

falling

mast

away

from

hazards

(such

as

power

lines)

into

a

"safe

fall"

(such

2s

a

yard

or

driveway).

The

ropes

are

tied

taut

at

the

base

of

the

mast

after

installation

and

in

place

at

the

vanous

levels.

4.

install

selected

mounting

bracket

5.

If

you

are

going

to

use quy

wire

installation

instead

of

a

mounting

bracket

+

instal

guy

anchor

Dols

“estimate

length

of

guy

wire

and

out

+

attach

a

mast

using

guy

ring

6.

Carefully

take

antenna

and

mast

assembly

to

mounting

bracket

and

insert.

Tighten

camp

bolts.

In

case

of

guyed

installation,

it

wil

be

necessary

to

have

at

least

z

second

person

hold

the

mast

upnght

while

the

guy

wites

are

attached

and

tightened

to

the

anchor

bolts.

7.

Install

ca

adhoring

"DANGER’

label

packaged

in

antenna

hardware

kit

at

eye

level

on

your

mast.

8.

JInstall

ground

rod

to

drain

off

static

electricity

build-up

and

connect

ground

wire

to

mast

and

ground

rod.

Use

special

ground

rods,

not

a

spare

piece

of

pipe.

EXAMPLE

OF

ANTENNA

GROUNDING

AS

PER

NATIONAL

ELECTRICAL

CODE

INSTRUCTIONS.

1.

Use

No.10

AWG

copper

or

No.

8

AWG

or

larger

copper-clad

steel

or

bronze

wire,

as

ground

wires

for

both

mast

and

lead-in.

Securely

ciamp

the

wire

to

the

bottom

of

the

mast.

2.

Secure

lead-in

wire

from

antenna

to

antenna

discharge

unit

and

mast

ground

wire:

to

house

with

stand-off

insulators

spaced

from

4

jeet

(1.2

meters)

to

6

feet

(1.8

meters)

apart.

3.

Mount

antenna

discharge

unit

2s

close

as

possible

to

where

the

lead-in

wire

ceniors

the

house.

4.

Drill

a

hole

in

wall

(CAREFUL'There

are

wires

in

that

wall.

near

your

set

just

large

enough

to

permt

entry

of

cable.

5.

Push

cable

through

hole

and

form

a

rain

drip

loop

cose

to

where

it

enters

the

house.

6,

Put

small

amount

of

caulking

around

cable

where

it

enters

house

to

keep

out

drafts.

7.

Install

static

electricity

discharge

unt.

8.

Connect

antenna

cable

to

the

set

‘You

should

not

attempt

to

raise

a

mast

in

excess

of

30

feet

in

heightlength

(not

including

the

antenna

proper)

in

a

fully-ex-

tended

condition.

Thirty

to

fity

foot

tubular

masts

must

be

el-

evated,

a

section

at

a

time,

with

the

base

or

outer

section

se-

cured

in

place

with

guy

wires.

GET

PROFESSIONAL

HELP.

WARNING

INSTALLATION

OF

THIS

PRODUCT

NEAR

POWER

LINES

IS

DANGEROUS.

FOR

YOUR

SAFETY,

FOL-

LOW

THE

ENCLOSED

INSTALLATION

DIRECTIONS.

HOW

TO

INSTALL

YOUR

OUTDOOR

ANTENNA

SAFELY

IN

AC-

CORDANCE

WITH

THE

RECOMMENDATIONS

OF

THE

U.S.

CON-

SUMER

PRODUCT

SAFETY

COMMISSION

YOU,

YOUR

ANTENNA,

AND

SAFETY

Each

year

hundreds

of

people

are

Killed,

mutilated

or

receive

severe

permanent

injuries

when

attempting

to

install

an

antenna,

In

many

of

these

cases,

the

victim

was

aware

of

the

danger

of

electrocution,

but did

not

take

adequate

steps

to

avoid

the

hazard

For

your

safety,

and

to

help

you

achieve

a

good

installation,

please

READ

and

FOLLOW

the

safety

precautions

below.

THEY

MAY

SAVE

YOUR

LIFE!

1,

Ifyou

are

installing

an

antenna

for

the

first

time,

please,

for

your

own

safety

as

well

as

others,

seek

PROFESSIONAL

ASSISTANCE.

Con-

sult

your

dealer.

He

can

explain

which

mounting

method

to

use

for

the

size

and

type

antenna

you

are

about

to

install

2.

Select

your

installation

site

with

safety,

as

well

as

performance,

in

mind

(Detailed

information

on

Site

Selection

appears

in

a

separate

section

ofthis

booklet.)

REMEMBER:

ELECTRIC

POWER

LINES

AND

PHONE

LINES

LOOK

ALIKE.

FOR

YOUR

SAFETY,

ASSUME

THAT

ANY

OVERHEAD

LINES

CAN

KILL

YOU.

3.

Calll

your

electric

power

company.

Tell

them

your

pians

and

ask

them

to

come

look

at

your

proposed

installation.

This

is

a

small

inconve-

nience

considering

YOUR

LIFE

IS

AT

STAKE.

4.

Plan

your

installation

procedure

carefully

and

completely

before

you

begin,

Successful

raising

of

a

mast

or

tower

is

largely

a

matter

of

coordination.

Fach

person

should

be

assigned

to

a

specific

task,

and

should

know

what

to

do

and

when

to

do

it.

One

person

should

be

designated

as

the

"boss"

of

the

operation

to

call

out

instructions

and

watch

for

signs

of

trouble.

5.

When

installing

your

antenna,

REMEMBER:

DO

NOT

use

a

metal

ladder.

DO

NOT

work

on

a

wet

or

windy

day.

DO

dress

properly

-shoes

with

rubber

soles

and

heels,

rubber

gloves,

Jong

sleeve

shirt

or

jacket.

6.

Ifthe

assembly

starts

to

drop,

get

away

from

it

and

let

itfall,

Remember,

the

antenna,

mast,

cable

and

metal

guy

wires

are

all

excellent

conduc-

tors

of

electrical

current.

Even

the

slightest

touch

of

any

of

these

parts

to

@

power

line

complete

an

electrical

path

through

the

antenna

and

the

installer-THAT’S

YOU!

7.

Ifany

part

of

the

antenna

system

should

come

in

contact

with

a

power

line-DON'T

TOUGH

IT

OR

TRY

TO

REMOVE

IT

YOUR

SELF.

CALL

YOUR

LOCAL

POWER

COMPANY.

They

will

remove

it

safely.

f

an

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

is

composed

of

High

strength

material

for

excellent

rigidly

and

light

weight.

The

MFJ-1886

is

compact

and

excellent

for

restricted

space

or

portable

installations.

The

MFJ-1886

antenna

frequency

range

extends

from

30Mhz.

all

the

way

down

into

the

500

Khz

AM

Broadcast

bands

The

antenna

has

strong

null

points

and

a

rotator

is

recommended

for

seeking

out

weak

stations

by

eliminating

noise

or

other

stations.

It

can

be

mounted

on

a

tripod

for

temporary

locations

or

any

mast

1-3/4

diameter

or

smaller

for

permanent

installation

Preparation

This

antenna

is

fully

assembled

and

ready

to

mount.

Pick

a

mounting

location

well

away

from

any

other

transmitting

antennas.

Transmitting

signals

close

to

the

MFJ-1886

will

damage

the

internal

amplifier.

This

antenna

can

be

used

indoors

if

desired.

Rotating

the

antenna

by

hand

is

a

good

way

to

null

noise

or

other

broadcast

stations

in

the

area.

Indoor

locations

tend

to

have

more

noise

sources

than

outdoor

locations

so

keep

that

in

mind

if

you

decide

to

use

the

antenna

inside.

In

the

box

1.

Loop

Antenna

=———————>

2.

Bias

Tee

——»

3.

Power

Supply

——>

Sam

Fi

4.

U-bolts

ry ry

WARNIN

KEEP

THIS

ANTENNA

AWAY

FROM

POWER

LINES

Never

mount

or

move

any

antenna

where

it

can

come

into

contact

with

power

lines.

If

this

antenna

comes

into

contact

with

power

lines,

it

can

KILL

you.

Never

mount

any

antenna

where

if

it

falls

it

could

come

into

contact

with

power

lines.

What

you

will

need

1.

Coax

jumper

for

connecting

bias

tee

to

radio.

2.

Coax

cable

for

connecting

bias

tee

to

loop

antenna

3.

This

antenna

uses

SO-239

connectors.

If

your

receiver

uses

BNC

or

other

connectors,

you

will

need

an

adaptor.

on™

coax

Cable

os)

DC

PASS

—>

3

DC

BLOCK

—>

TOP

P

eee

eee

eee

12

VDC

@

DO

NOT

Transmit

into

the

MFJ-1886

©

™

Transmitting

into

the

Loop

will

cause

:

)

i

permanent

damage.

|

BEEBE

BRB

RRP

eee

Receiver

Mounting

Use

the

two

supplied

u-bolts

to

secure

the

loop

to

your

mast

as

shown.

Your

mast

should

be

no

more

than

1-3/4

in

diameter

and

should

be

sturdy

enough

to

support

Side

view

the

MFJ-1886

antenna.

Customer

supplied

tripod

or

mast

SITE

SELECTION

Before

attempting

to

install

your

antenna,

think

where

you

can

best

place

your

antenna

for

safety

and

performance.

To

determine

a

safe

distance

from

wires,

power

lines

and

trees:

1,

Measure

the

height

of

your

antenna.

2.

Add

this

length

to

the

length

of

your

tower

or

mast,

and

then

3.

Double

this

total

for

the

minimum

recommended

safe

distance.

f

you

are

unable

to

maintain

this

safe

distance,

STOP!

GET

PROFES-

SIONAL

HELP.

Many

antennas

are

supported

by

pipe

masts

attached

to

the

chimney,

roof

or

side

of

the

house.

Generally,

the

higher

the

antenna

is

above

the

ground,

the

better

it

performs.

Good

practice

is

to

install

your

antenna

about

5

to

10

feet

above

the

roof

line

and

away

from

power

lines

and

obstructions.

Remember

that

FCC

limits

your

antenna

height

to

60

feet.

If

possible,

find

a

mounting

place

directly

above

your

set,

where

the

antenna

wire

can

take

a

short,

vertical

drop

on

the

outside

of

the

house

for

entry

through

@

wall

or

window

near

the

set.

Your

dealer

carries

@

complete

line

of

installation

hardware.

AVOIDTHIS

LOCATION

power

lines

should

be

at

least

twice

the

height

of

the

antenna

and

mast

combined.

CHOOSE

A

PROPER

SUPPORT

AND

MOUNTING

METHOD

However

you

decide

to

mount

and

support

your

antenna

always

make

‘sure

that

safety

is

your

first

concern.

Some

of

the

more

common

installation

methods

are

illustrated

below.

ROOF

MOUNTED

ROOF

MOUNTING

The

swivel

feature

of

"universal"

type

mounting

brackets

makes

a

conve

~

nient

antenna

mount

for

flat

or

peaked

roofs.

One

clamp

type

brackat

is

used

with

3

or

4

guy

wires

equally

spaced

around

the

mast

and

anchored

to

the

roof

or

eaves

by

eyebolts.

Apply

roofing

compound

around

the

base

of

the

bracket,

screws

and

eyebolts

for

moisture

sealing.

TELESCOPING

MAST

Guy

wires

should

be

equally

spaced

in

at

least

three

directions.

Use

at

least

three

guy

wires

for

each

10

foot

section

of

mast.

SIDE

OF

HOUSE

MOUNTING

The

safe

distance

from

power

lines

is

at

least

twice

the

height

of

antenna

and

mast

combined.

Where

roof

overhang

is

not

excessive,

the

side

of

the

house

provides

a

convenient

mounting,

Position

the

brackets

over

a

stud

if

possible,

one

above

the

other,

and

space

two

or

three

feet

apart.

For

metal

siding,

first

mark

mounting

holes,

then

drill

pilot

holes

through

the

siding

to

accept

mounting

screws.

TOWER

Tower

safety

is

paramount

to

a

good

installation

and

requires

that

you

take

location,

tree

growth,

soil

depth

and

proximity

to

buildings

into

consider-

ation,

Tower

foundations

must

be

securely

based

on

a

solid

concrete/

tower

mounting

plate,

An

alternative

is

to

sink

a

4-6

foot

section

of

tower

into

a

concrete

base

for

an

extremely

rugged

mount.

Proper

guying

is

essential

to

a

safe

weather-resistant

installation

that

must

handle

severe

wind

loading

and

is

best

accomplished

with

preformed

uy

arips,

torque

brackets

and

tumbuckles.

When

working

on

towers

always

use

a

safety

belt

made

of

high

quality

web-type

material

CHIMNEY

MOUNTING

The

chimney

is

often

an

easy

and

conve-

nient

mounting

piace.

But

the

chimney

must

be

strong

enough

to

support

the

antenna

in

high

winds.

Do

not

use

a

chimney

that

has

loose

bricks

or

mortar.

A

good

chimney

mount

makes

use

of

a

5

or

10

foot,

1-114"

diameter

steel

mast,

and

a

heavy

duty

two

strap

clamp-type

bracket.

Install

the

upper

bracket

just

below

the

top

course

of

bricks,

and

the

lower

bracket

two

or

three

feet

below

the

upper

bracket.

For

maximum

strength,

space

the

brack-

ets

as

far

apart

as

possible,

Operation

NULL

MAX

MAX

NULL

View

from

top

side

of

loop

Inside

or

outside

the

operation

of

the

antenna

is

basically

the

same.

Rotation

of

the

antenna

is

important

so

turning

it

by

hand

or

with

a

rotator

will

increase

the

effectiveness

of

receiving

distant

stations.

Two

null

points

on

the

antenna

will

allow

directional

receiving.

This

means

noise

or

other

interference

can

be

reduced

by

placing

the

noise

source

in

the

direction

of

the

null

point.

It

is

not

necessary

for

you

to

know

which

direction

the

antenna

is

pointed,

simply

rotate

the

antenna

until

you

hear

the

noise

go

away

or

it

is

greatly

reduced.

You

may

not

be

able

to

null

close

or

very

strong

stations

because

their

signal

may

be

coming

from

multiple

directions

(

bouncing

around

).

When

you

null

a

station,

it

allows

you

to

hear

other

signals

that

are

on

or

close

to

the

same

frequency

as

the

nulled

station.

You

may

be

able

to

hear

stations

that

you

were

not

able

to

hear

before.

Notes

12

MONTH

LIMITED

WARRANTY

MFJ

Enterprises,

Inc.

Warrants

to

the

original

owner

of

this

product,

if

manufactured

by

MFJ

Enterprises,

Inc.

and

purchased

from

an

authorized

dealer

or

directly

from

MFJ

Enterprises,

Inc.

to

be

free

from

defects

in

material

and

workmanship

for

a

period

of

12

months

from

date

of

purchase

provided

the

following

terms

of

this

warranty

are

satisfied.

1.

The

purchaser

must

retain

the

dated

proof-of-purchase

(bill

of

sale,

canceled

check,

credit

card

or

money

order

receipt,

etc.)

describing

the

product

to

establish

the

validity

of

the

warranty

claim

and

submit

the

original

or

machine

reproduction

of

such

proof-of-purchase

to

MFJ

Enterprises,

Inc.

at

the

time

of

warranty

service.

MFJ

Enterprises,

Inc.

shall

have

the

discretion

to

deny

warranty

without

dated

proof-of-purchase.

Any

evidence

of

alteration,

erasure,

or

forgery

shall

be

cause

to

void

any

and

all

warranty

terms

immediately.

2.

MF

Enterprises,

Inc.

agrees

to

repair

or

replace

at

MFJ’s

option

without

charge

to

the

original

owner

any

defective

product

under

warranty,

provided

the

product

is

returned

postage

prepaid

to

MFI

Enterprises,

Inc.

with

a

personal

check,

cashiers

check,

or

money

order

for

$7.00

covering

postage

and

handling.

3.

MFI

Enterprises,

Inc.

will

supply

replacement

parts

free

of

charge

for

any

MFJ

product

under

warranty

upon

request.

A

dated

proof-of-purchase

and

a

$5.00

personal

check,

cashiers

check,

or

money

order

must

be

provided

to

cover

postage

and

handling.

4.

This

warranty

is

NOT

void

for

owners

who

attempt

to

repair

defective

units.

Technical

consultation

is

available

by

calling

(662)

323-5869.

5.

This

warranty

does

not

apply

to

kits

sold

by

or

manufactured

by

MFJ

Enterprises,

Inc.

6.

Wired

and

tested

PC

board

products

are

covered

by

this

warranty

provided

only

the

wired

and

tested

PC

board

product

is

returned.

Wired

and

tested

PC

boards

installed

in

the

owner’s

cabinet

or

connected

to

switches,

jacks,

or

cables,

etc.

sent

to

MFJ

Enterprises,

Inc. will

be

returned

at

the

owner’s

expense

unrepaired.

7.

Under

no

circumstances

is

MFJ

Enterprises,

Inc.

liable

for

consequential

damages

to

person

or

property

by

the

use

of

any

MFJ

products.

8.

Out-of-warranty

Service:

MFJ

Enterprises,

Inc.

will

repair

any

out-of-warranty

product

provided

the

unit

is

shipped

prepaid.

All

repaired

units

will

be

shipped

COD

to

the

owner.

Repair

charges

will

be

added

to

the

COD

fee

unless

other

arrangements

are

made.

9.

This

warranty

is

given

in

lieu

of

any

other

warranty

expressed

or

implied.

10.

MFJ

Enterprises,

Inc.

reserves

the

right

to

make

changes

or

improvements

in

design

or

manufacture

without

incurring

any

obligation

to

install

such

changes

upon

any

of

the

products

previously

manufactured.

11.

All

MFJ

products

to

be

serviced

in-warranty

or

out-of-warranty

should

be

addressed

to

MFJ

Enterprises,

Inc.,

300

Industrial

Park

Road,

Starkville,

Mississippi

39759,

USA

and

must

be

accompanied

by

a

letter

describing

the

problem

in

detail

along

with

a

copy

of

your

dated

proof-of-

purchase.

12.

This

warranty

gives

you

specific

rights,

and

you

may

also

have

other

rights,

which

vary

from

state

to

state.