HP 8648 A/B/C/D - Changpuak.ch

RF Level Accuracy Performance Test
Configure the
HP 8648B/C/D
Measure High Level
Power Accuracy
(5 13 dBm)
Note
Configure the
HP 8648 Option 1EA
1. Connect the power sensor to the HP 8648 RF OUTPUT connector.
2. Set the amplitude; press CAMPLITUDE] (13) [dB(m).
3. Turn the RF output on; press Cm].
1. Enter the frequencies and power levels shown in the test record.
Make sure the power sensor cal factors are entered correctly for
each frequency. Do not test below -20 dBm with this test setup.
2. Record the test results and compare the results to the limits in the
test record.
HP 8648B . . . . . . . . . . . . . . . . . . . . . . . . . . . .‘l%ble 8-38
HP 8648C . . . . . . . . . . . . . . . . . . . . . . . . . . . . Table 8-63
HP 8648D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Table 8-88
For HP 8648B/C/D instruments without Option lEA, high power, skip
ahead to “Configure the Power Meter”. All others, continue with the
next step.
1. Set the amplitude; press [AMPLITUDE) lloJ m.
2. Turn the RF output on; press (RF).
3. Connect the power sensor directly to the HP 8648 RF OUTPUT
connector.
Measure the High 1. Measure the RF power at each frequency listed in Table 8-l and
Power Level Accuracy record the measurement in the first row of the table.
8-24 Performance Tests
2. Connect the 10 dB attenuator between the HP 8648 RF OUTPUT
connector and the power sensor.
3. Measure the RF power at each frequency listed in Table 8-l and
record the measurement in the second row of the table.
4. Calculate the actual attenuator value for each frequency (the
difference between the two measurements) and record it in the
third row of the table.
5. For each frequency listed in Table 8-l set the HP 8648 amplitude
to the level shown in the table and measure the RF power level
through the 10 dB attenuator. Record the measurement in the fifth
row of the table.
6. Calculate the actual output power for each frequency (the sum of
the measured power and the attenuator value) and record it in the
test record.