User Manual

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Table Of Contents

ADCP-75-126 • Issue B • April 2002 • Section 4: Operation

Page 4-14

©

2002,

ADC

Telecommunications,

Inc.

Figure 4-10. REMOTE LPA Display

2. Check

the

level

of

the

RF

output

signal

(as

determined

in

Section

2.6)

against

the

system

design

plan

specifications.

Table 4-1

shows

the

output

signal

level

required

to

provide

5

watts

per

channel

for

systems

with

1

to

4

channels.

The

maximum

output

signal

level

permitted

for

the

system

is

43.5

dBm

(22.4

watts).

3. Determine

if

more

or

less

attenuation

is

required

to

produce

the

required

output

signal

level.

4. Right-click

on

the

Remote

Fwd

Att

section

of

the

display

(see

Figure 4-10).

The

Remote

Fwd

Att

pop-up

screen

will

open

as

shown

in

Figure 4-11.

5. Enter

the

required

attenuation

value

and

click

OK

to

close

the

pop-up

screen

and

to

make

the

changes

take

effect.

Table 4-1. Composite Output Signal Levels

NUMBER OF

CHANNELS

OUTPUT SIGNAL LEVEL

REQUIRED TO PROVIDE 5

WATTS PER CHANNEL

137

dBm

240

dBm

342

dBm

443

dBm

When

there

are

five

or

more

channels,

each

channel

will

always

be

less

than

5

watts

since

the

system

has

a

maximum

power

output

of

22.4

watts

(43.5

dBm).

Right-click here to

open the Remote Fwd

Att pop-up screen

RF output signal level