Performance ver
ification
Channel amplitude flatness
The amplitude flatness test verifies amplitude at the two normalized bands and the band most likely to encounter a channel
response problem. The channel flatness is measured for 2 MHz – 42 MHz, 1260 MHz – 1300 MHz, and 2140 MHz
– 2180 MHz.
1. Connect the signal generator, power splitter, power sensor, power meter, and RSA306 as shown in the following figure.
Connect the power splitter outputs directly to the RSA306 RF Input and to the power sensor.
2. Reset the RSA306 to factory defaults (Presets > Main).
3. Run the RSA306 alignment procedure (Tools > Alignments > Align Now).
4. Set the RSA306 as follows:
a. Reference Level = 0dBm.
b. Detection = +PEAK (Setup > Settings > Traces > Detection > +PEAK).
c. Filter shape = Flat-Top (Setup > Settings > BW > Filter Shape > Flat-top).
d. Center Frequency = 22 MHz
e. Span = 40 MH
z
f. RBW = Auto (300 kHz)
g. Function = Normal (Setup > Settings > Traces > Function)
5. Set the signal generator frequency to the first frequency in the 2 MHz – 42 MHz channel flatness table. (See Table 10.)
6. Set the signal generator amplitude for –5 dBm at the power meter and RSA306.
7. Record the power meter reading in the 2 MHz – 42 MHz channel flatness table. (See Table 10.)
8. On the RSA306, position the marker on the peak amplitude of the signal; record the amplitude in the channel flatness
table.
9. Repeat steps 5 through 8 to measure and record for all the frequencies i n the channel flatness table, 2 MHz through
42 MHz. Do not change the RSA306 center frequency setting.
10. Set the RSA center frequency to 1280 MHz.. Keep other settings the same.
11. Set the signal generator frequency to 1260 MHz.
RSA306 Specifications and Performance Verification 24
To Next Page
Loading...
Need help?
General
