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AM Receivers
144
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.
5. Set Amplitude to −47 dBm (1 mV).
6. Set Output Port to Dupl.
7. Set AFGen1 To AM at the desired modulation depth (typically 30%).
8. Set Ext Load R to the test load resistance.
9. Set AC Level meter to measure Watts.
On the Radio set the Receiver’s Controls as follows:
10. Set power to ON.
11. If required, set frequency to same value as step 4.
12. Set squelch to minimum.
13. Set RF Gain to maximum (if equipped).
14. Set the volume control until the AC Level reads 100% of the Receiver’s
specified audio output.
Refer to the audio output specifications for the receiver being tested.
On the Test Set using the knob and data entry keys:
15. Select AC Level
16. Press the REF SET key.
Additional Equipment
Required
Test Load
Special Test Considerations
See "Receiver Test Loads" on page 46.