HP 4395A - Page 61

10. ABSOLUTE AMPLITUDE ACCURACY TEST (NA)
Description
This test measures a test signal amplitude using the HP 4395A absolute amplitude measurement
function in the network analyzer mode and using a power meter, a power sensor and a
multimeter. Then it compares the HP 4395A reading with the reading of the power meter or
the multimeter. The accuracy of the absolute amplitude measurement is veried over the
entire frequency range.
In this test, the HP 4395A RF OUT signal is used as the test signal. The RF OUT signal is
divided through a two-way power splitter and applied to an HP 4395A input and the power
sensor input or the multimeter.
Specication
Absolute amplitude accuracy (R, A, B)
@ 0 10 dBm input, input att. = 10 dB,23 6 5

C
freq.  100 Hz, IFBW  3 kHz ::: :::: ::::: :::: ::::: :::: :::: ::::: :::: ::::: :::: ::::< 6 1.5 dB
Test Equipment
Power Meter ::: ::::: :::: :::: ::::: :::: ::::: :::: ::::: ::
HP 436A Opt. 022, HP 437B, or HP 438A
Power Sensor ::::: :::: ::::: :::: ::::: :::: :::: ::::: :::: ::::: :::: ::::: :::: ::::: :::: ::::: ::
HP 8482A
Multimeter :::: ::::: :::: ::::: :::: ::::: :::: ::::: :::: ::::: :::: :::: ::::: :::: ::::: :::: ::::: :
HP 3458A
Two-Way Power Splitter :::: ::::: :::: ::::: :::: ::::: :::: ::::: :::: :::: ::::: :::: ::::: :::
HP 11667A
50  Feedthrough ::::: :::: ::::: :::: :::: ::::: :::: ::::: :::: ::::: :::: ::::: :::: :::::
PN 04192-61002
Type-N Cable,61 cm ::: ::::: :::: ::::: :::: :::: ::::: :::: ::::: :::
HP 11500B or part of HP 11851B
BNC cable,61 cm ::::: :::: ::::: :::: ::::: :::: :::: ::::: :::: ::::: :::: ::::: :::: ::::: :::
PN 8120-1839
N(m)-BNC(f) adapter ::::: :::: ::::: :::: ::::: :::: :::: ::::: :::: ::::: :::: ::::: :::: ::::
PN 1250-0780
N(m)-N(m) adapter ::::: :::: ::::: :::: ::::: :::: :::: ::::: :::: ::::: :::: ::::: :::: ::::: :
PN 1250-1475
BNC(f)-Dual Banana Plug Adapter ::: :::: ::::: :::: ::::: :::: ::::: :::: ::::: :::: :::: :
PN 1251-2277
Procedure
1. For testing low frequencies
a. Connect the test equipment as shown in Figure 2-12.
Performance Tests 2-29