IFR FM/AM-1200A

IFR FM/AM-1200A

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4-4-9

Executing

Variable

IMTS

Audio

Function

This

function

is

based

on

the

2805/1500

type

of

signalling

system,

but

allows

any

variable

tone

frequency

and

waveform

to

be

used,

including

2805/1500.

This

function

allows

the

variable

tone

entered

in

Tone

Memory

Location

fJ

to

be

used

with

any

of

the

telephone

numbers

entered

in

DTMF/PULSE

Memory

Locations

fJ

through

15.

The

created

pulse

may be

set

at

repeti-

tion

rates

of

10

or

20

pulses

per

second.

To

use

this

function,

program

desired

telephone

numbers

into

DTMF/IMTS

memory

locations

as

shown

in

paragraph

4-3-3,

and

program

desired

variable

tone

frequency

and

waveform

into

Tone

Memory

Location

fJ

as

shown

in

paragraph

4-3-2.

Then

perform

the

following

steps:

KEY

ENTRY

r=;l

~

2ND

1!!!!1

FUNCT

OR

VFD

(37)

INDICATES

illrlxlrlcluiTirl

1?1

I I I I I I

Ill

OR

Press

the

key(s)

corresponding

to

the

desired

DTMF/IMTS

memory

location

(Ref.

Table

4-1).

The

blinking

digit

is

the

one

being

executed.

If

further

telephone

numbers

are

to

be

executed

at

the

same

pulse

repe-

tition

rate

and

the

same

variable

tone

frequency

and

waveform,

press

the

key(s)

corresponding

to

the

new DTMF/PULSE

memory

location.

4

-2

7

02

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