IFR FM/AM-1200A

IFR FM/AM-1200A

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The

FM/AM-1200S/A Keyboard

consists

of

24

keys which

provide

a means

of

entering

data

into

the

microprocessor

to

control

the

frequency

of

the

signal

generator,

receiver,

duplex

generator

offset

and

tone

generator

functions.

3-3-1

FUNCTION

KEYS

These

keys

determine

what FM/AM-1200S/A

function

is

selected

by

the

operator.

Most keys have a

dual

function

which

will

select

either

the

1st

order

functions

(DTMF,

TONE,

OFFSET

and

RF)

or

2nd

order

functions

(IMTS, T

SEQ,

SCAN,

DVM,

DCS,

BAUD,

INT, STEP,

METER,

lOPS, 20PS and a

selection

of

4

additional

options).

1st

ORDER

FUNCTIONS

(Black

Lettering

on

Keyboard)

These

functions

are

used

to

set

the

operating

parameters

of:

Dual Tone

Multiple

Frequency

(DTMF)

Variable

Tone

Generator

(TONE)

Duplex

Offset

Generator

Frequency

(OFFSET)

Signal

Generator

or

Receiver

Frequencies

(RF)

2nd

ORDER

FUNCTIONS

(Blue

Lettering

on

Keyboard)

All

second

order

function

keys

must

be

preceded

by

the

''2ND

FUNCT''

Key.

FREQ

ERROR

and

Modulation

Meter

Indications

(METER)

Mobile

Pulse

Dialing/IMTS

(IMTS)

Tone

ON/OFF

Duration

Selection

(TSEQ)

RF

Program

Function

(SCAN)

Digitally

Coded

Squelch

(DCS)

Step

Function

(STEP)

VFD

Intensity

(INT)

Digital

Voltmeter

(DVM)

Variable

Pulsed

Audio @

10

PPS

( 10

PS)

Variable

Pulsed

Audio @

20

PPS

(

20

PS)

BAUD

Rate

Set

(BAUD)

FM/AM-1200S/A

Future

Expansion

(OPT)

[NOTE]

For a

detailed

explanation

of

the

Variable

Pulsed

Audio

Feature,

based

on

the

2805/1500

type

signalling

system,

refer

to

paragraph

4-4-9.

3-13

02

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