User`s guide

Agilent PXT Wireless Communications Test Set

User’s Guide

DO NOT SIMPLY SET Power Adjust (All Down) = Off. This results in a dropped connection

(under investigation), because the PXT adjusts the attenuator too high. To alleviate this

issue, always switch back to the setting: Power Adjust (All UP) = On

briefly, before leaving

this screen.

OTA Example Settings for Adaptive Attenuation

It has been found that for some devices, the following OTA settings are successful when using the

adaptive attenuation function.

Set Atten > Attenuation = Adaptive

Set the Output Power Offset to +40 dBm on both RF1 and RF2 (Config > Amplitude Offsets > RF1/RF2

Output Power Offset).

Set IDLE_ADJUSTER (Atten > More > IDLE_ADJUSTER ) and CONNECTED_ADJUSTER (Atten > More >

CONNECTED_ADJUSTER ) both to -30 dBm.

Set UL Resource Allocation Mode to Fixed Mac Padding

(Mode > BSE > Mode Setup > More > PHY

Settings > UL Resource Allocation). Note that if Atten > Attenuation = Auto

, this is not required. An

alternative to setting the UL Resource Allocation Mode to Fixed Mac Padding

, is to set UL Power Adjust

(All Up) = On

or Func > UE Power Control > Power Control Mode = CLCP.

RF1 Input Attenuation

Auto: Enables the PXT to use the value set for Atten > RF1 Ref Level to calculate the required input

attenuation. Otherwise, this value is set by the Attenuation menu key.

Manual: Enables you to set the RF1 input attenuation value manually.

Measurement results are not affected by this setting. To change the

offset of your measurement results, use the Atten > RF1 Input Power

Offset setting.

2. The maximum power level to this input is: 27 dBm (.5 Watts) 5VDC.

Mode

BSE, SA

Range

Auto | Manual

Preset

Auto

Initial S/W Revision

6.0

Key Path

Atten

RF2 Input Attenuation

This function is currently not available.