Datasheet

ManualsBrandsPeakTech ManualsSignal Generators & Spectrum AnalysersSpectrum Analyser, 2.2GHz, 50Ohm

4.7. Ref Level

Set the reference level, indicates at the top scale as amplitude power or voltage. When change the

reference level, the topmost scale of absolute amplitude level changes accordingly shown at the

upper left of the display grid.

Key points:

 Maximum reference level is affected by combination of maximum mixing level, input attenuation

and preamplifier. When adjust it, the input attenuation is adjusted under a constant max mixing

level, meeting:

Ref

, a

and L

mix

denote reference level, input attenuation,

preamplifier and maximum mixing level.

 You can modify this parameter by numeric keys, knob and arrow keys. For more details, please

refer to “Paramter Input”.

Table 2-6 Reference Level

4.8. Input Atten

Set the front attenuation of the RF input in order to permit big signals (or small signals) to pass from

the mixer with low distortion (or low noise).

Key points:

 When preamplify is on, up limit for input attenuation can set to be 30dB. You can adjust

reference level to ensure above formula 2-3.

 You can modify this parameter by numeric keys, knob and arrow keys. For more details, please

refer to “Parameter Input”.

Table 2-7 Input Attenuration

-17-

Parameter

Description

Default

0dBm

Range

-100 dBm ~ 30 dBm

Unit

dBm, -dBm, mV, uV

Knob Step

in Log scale mode, step=scale/10

in Lin scale mode, step=0.1 dBm

Arrow Keys Step

in Log scale mode, step=scale

in Lin scale mode, step=1 dBm