Service manual

Operating Guides 3
Agilent 8495D/K Attenuators Operating and Service Manual 29
Figure 6 Operator’s Check Setup
Procedure
1 Connect equipment as shown in Figure 6 on page 29 with the
attenuator set to 0 dB.
2 Set the test oscillator to 0.3 Vrms at 1 kHz.
3 Set SWR meter range to 2 dB (expanded) and adjust its
bandwidth to center of adjustment range. Fine- tune the
oscillator frequency to obtain maximum meter indication.
4 Set attenuator and SWR meter range switch as listed in Table 9
and verify that the SWR meter indicates within the limits
shown.
NOTE
The SWR meter used in this check is calibrated for a square-law detector.
Therefore, the range changes and errors (read in dB) are twice that indicated by
the meter.
Test oscillator
Solenoid
driver circuits
SWR meter
8495D manual
attenuator
Adapter
50 Ω
Input
8495K programmable
attenuator