Agilent Technologies HP8648A Instrukcja Użytkownika Pobierz pdf (Strona 176)

100

101

SSB Receivers

175

Measurement Procedure:

1. Connect the Receiver as shown.

On the Test Set:

2. Press the PRESET key.

3. Press the RX key.

Using the knob and data entry keys:

4. Set RF Gen Freq to the receiver operating frequency.

NOTE: RF Gen Freq is dependent on the Receiver’s mode (LSB/USB) and the audio

frequency desired (normally 1 kHz). When setting for LSB, set RF Gen FREQ

to a setting 1 kHz less than the normal carrier frequency. For USB, set to 1

kHz higher.

5. Set Amplitude to −47 dBm (1 mV).

6. Set AFGen1 To OFF.

7. Set Ext Load R to the test load resistance.

8. Set AC Level meter to measure Watts.

9. Set SINAD meter to measure AF Freq.

Additional Equipment

Required

Test Load

Special Test Considerations

See "Receiver Test Loads" on page 46.

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