IFR FM/AM-1200A

IFR FM/AM-1200A

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.

'

!

•

B.

Repeater

Channel

Numbers

A

mobile

radio

is

programmed

with

a

set

of

valid

repeater

numbers

from

1

to

20.

An

RF

channel

number

is

associated

with

each

of

these

repeater

numbers

in

a

mobile

radio

look-up

table.

One

of

these

repeaters

is

designated

the

home

repeater

for

the

mobile

radio.

For

Example:

REPEATER

CHANNEL

MOB!

LE

RECEIVE

MOB!

LE

TRANSMIT

5-44

08

LIST

NUMBER

FREQUENCY

FREQUENCY*

3 39

851.9625 806.9625

7

79

852.9625

807.9625

11 119

853.9625 808.9625

15

159

854.9625 809.9625

19 199

855.9625

810.9625

*These

channel

numbers

and

frequencies

reflect

those

used

in

the

lower

Trunking

band.

For

a

complete

list

of

channel

numbers

and

frequencies,

see

Appendix

F.

Given

a

channel

number.

the

mobile

unit

can

compute

the

transmit

and

receive

frequencies

according

to

the

following

formulae:

Low

Frequency

Band

Transmit

RF-

806.0125

+

[.025

x

(Channel

#

-1)MHz]

Receive

RF

-Transmit

RF

+ 45

MHz

Transmit

RF

Receive

RF

High

Frequency

Band

896.0000

+ (

.0125

x

Channel

#)

MHZ

Transmit

RF

+ 39

MHz

NOTE

Radios

operating

in

the

Low

Trunking

Frequency

Band

within

range

of

Mexico

or

Canada

must

employ

a

-12.5

kHz

offset

as

required

by

the

FCC.

Repeaters,

in

turn,

are

programmed

to

recognize

a

set

of

ID

codes.

Any

received

data

stream

from

mobiles

with

IDs

not

in

a

repeater's

table

are

discarded.

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