Chapter 2 425
Performance Verification Tests
59. Comms Absolute Power Accuracy (Options BAC or BAH)
f. Press Peak Search (or Search). The marker can still make a valid
measurement, even though the signal may be slightly above the
reference level for the first nominal amplitude setting.
g. Record the marker (Mkr1) amplitude value as the Measured
Amplitude in Table 2-132.
h. Calculate the amplitude accuracy as follows:
7. Table 2-132 has two Amplitude Accuracy entries for each nominal
input amplitude setting. For each of the nominal input amplitude
setting pairs in Table 2-132, record the worst of the two Amplitude
Accuracy values in Table 2-133 and Table 2-134 as the 50 MHz
Amplitude Accuracy for the same Nominal Input Amplitude setting.
8. Copy into Table 2-133 and Table 2-134 the peak-to-peak frequency
response error for the appropriate input attenuation setting from the
Comms Frequency Response Performance Test for both the 800 MHz
to 1 GHz Cellular Band, and the 1.7 GHz to 2 GHz PCS Band
measured in a 10 kHz resolution bandwidth with the preamplifier
on.
9. For each Nominal Input Amplitude setting listed in Table 2-133, add
the values for the 50 MHz Amplitude Accuracy (Column 2), the
peak-to-peak response (Column 4), and the uncertainty (Column 5).
Record the sum as the cdmaOne Receive Channel Power Accuracy,
Preamp On (Column 6). Repeat this step for Table 2-134.
10.Record the cdmaOne Receive Channel Power Accuracy, Preamplifier
On Results from Table 2-133 and Table 2-134 into the test record as
indicated by the test record entry in parenthesis.
11.This test procedure is now complete.
Amplitude Accuracy =
Measured Amplitude Amptd0dB ActualTotalAtten–RefAtten
0dB
+()– 40dB+
Table 2-133 cdmaOne Receive Channel Power (Cellular Band) Preamp On
Nominal
Input
Amplitude
(dBm)
50 MHz
Amplitude
Accuracy
(dB)
Input
Attenuation
(dB)
Peak to
Peak
Response
(1.7 GHz to
2 GHz)
(dB)
Uncertainty
(dB)
cdmaOne
Receive
Channel Power
Accuracy,
Preamp On
Columns 2+4+5
(dB)
−40 0 0.24 35)
−60 0 0.24 36)
−70 0 0.24 37)
−80 0 0.24 38)