1730–Series Checks and Adjustments
5–25
c. Select Demod/TG on the spectrum analyzer. Turn on the tracking
generator and set the tracking generator fixed level to 0.00 dBm.
d. Set the spectrum analyzer Span/Div to 1 MHz and the Resolution
Bandwidth to 30 kHz.
e. Set the spectrum analyzer Vertical Scale to 10 dB.
f. Set the spectrum analyzer Reference Level to the first major division
down from the top on the analyzer display.
g. Remove one of the cables from the RF Bridge.
h. Set the spectrum analyzer Frequency to 5 MHz and turn the Marker on.
Set the Marker to 6 MHz.
i. Reconnect the cable to the RF Bridge.
j. Note – the Reference Level Readout.
k. Adjust the spectrum analyzer External Attenuation Amplitude (on the
2712 Input menu) by the amount noted in part j. of this step. Note: The
Reference Level Readout should now be 0.00 dBm.
l. Connect the precision high-frequency terminator to the Device Under
Test connector on the RF Bridge.
m. Check – that the frequency response from 0 MHz to 6 MHz is
w40 dBm.
n. Return the spectrum analyzer frequency marker to 6 MHz if it was
moved.
o. Remove the precision high-frequency terminator from the RF Bridge.
p. Connect the male-to-male bnc adapter to the Device Under Test
connector on the RF Bridge.
q. Connect the Device Under Test connector on the RF Bridge to the
1730–Series CH–A INPUT. Terminate the CH–A loop-through with the
same precision high-frequency terminator used in step o.
r. Select CH–A INPUT.
s. Check – that the Reference Level Readout on the spectrum analyzer is
w40 dBm with the instrument power on and off.
t. Repeat parts q. through s. for each Input channel (CH–B and EXT REF).
u. Remove all cables and terminators from the 1730–Series.
To Next Page
Loading...
Need help?
General
