Agilent Technologies Agilent 4396B User Manual

Page 47

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Setting

the

Resolution

Bandwidth

to

See

Low

Level

Signals

T

o

see

lower

level

signals

that

are

approximately

the

same

level

as

the

noise

oor

level,

use

a

narrow

resolution

bandwidth

(rbw )

setting.

Before

you

set

the

RBW

,

set

the

maximum

peak

level

as

the

reference

level.

This

increases

the

visibility

of

the

lower

level

signal.

This

technique

is

useful

when

you

are

measuring

two

signals

and

one

is

very

close

to

the

noise

level.

Press

4

Scale

Ref

5 .

Press

FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF

MKR !REFERENCE

.

The

trace

moves

upward

to

place

the

tip

of

the

maximum

peak

at

the

top

line

of

the

grid.

Spectrum

Analyzer

T

our

2-9