IFR FM/AM-1200A - Page 170

IFR FM/AM-1200A

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STEP

5.

PROCEDURE

Simple

Handshake

Test.

To

simulate

the

FM/AM-1200S

making

a

Simple

Handshake

with

a

mobile

unit,

perform

the

following

steps:

a.

Place

the

MODE

Selector

Control

(39)

to

DUP.

b.

c.

d.

e.

Press:

[iJ

~~11+,1.

The

following

display

appears

on

the

VFD:

/llriNI

rlrl:-71

I

:.1

I~:?

I

IJI

I I I I

Ill

Press:

1~1.

The

following

display

appears:

/llriNirlriPI

lrlrlslrll:l--1~~?1

I

Ill

Press:

~~~.

As

the

FM/AM-12005

begins

transmitting

programmed

data

word

to

the

UUT,

the

VFD

displays:

the

The

simulated

repeater

unit

(the

FM/AM-12005)

looks

for

a

valid

mobile

push-to-talk

request.

Press

the

UUT's

"Push-to-Talk"

switch.

word

is

valid,

the

VFD

displays:

Voice

transmission

may

now

take

place.

If

the

incoming

data

f.

Release

the

UUT's

"Push-to-Talk"

switch.

The

UUT

transmits

a

data

word

containing

the

end

code

and

the

VFD

displays:

The FM/AM-12005

now

sends

the

last

handshake

message

once.

If

any

of

the

above

VFD

displays

fail

to

appear.

the

test

has

failed.

5-

55

08

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