HP EPM-442A Instrukcja Użytkownika Pobierz pdf (Strona 67)

HP4402.book : chapter2.fm 29 Wed Apr 23 15:29:05 1997

Power Meter Operation

Setting Averaging

HP EPM-442A User’s Guide 2-29

Figure 2-5: Averaged Readings

These four resolution levels represent:

• 1, 0.1, 0.01, 0.001 dB respectively if the measurement sufﬁx is

dBm or dB.

• 1, 2, 3 or 4 signiﬁcant digits respectively if the measurement sufﬁx

is W or %.

Note The following procedure details how to set the averaging for

channel A. To set the averaging on channel B use the same

procedure using the softkey.

To set averaging:

1. Press , . The current setting of

averaging is displayed under the softkey.

2. To change this setting press . A pop up window appears.

Use or to select your ﬁlter choice.

3. To conﬁrm your choice press .

4. is automatically set to “On” when a value is

entered using .

The ﬁlter can be disabled and re-enabled simply by pressing

10 dB

Minimum Sensor Power

Maximum Sensor Power

Power Sensor

Dynamic Range

10 dB

1234

1 8 128 128

Resolution Setting

Number of Averages

1 1 16 256

11232

11116

1118

B Input Settings

System

Inputs

A Input Settings

Filter

Enter

Filter Off On

Filter

Filter Off On

1 2 ... 62 63 64 65 66 67 68 69 70 71 72 ... 163 164

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