NI
PX
Ie-
5694
Cali
br
at
ion
P
rocedu
re
|
© Nati
onal I
n
str
u
ment
s
|
3
Table 1.
Recommended Equipment for NI 5694 Calibration
Equipment
Recommended
Model
Where Used
Minimum Requirements
Power meter
Anritsu ML2438A
Characterizing RF source power
Characterizing cable loss
Verifying third-order intercept point
out-of-band
Adjusting IF gain for bypass path
Adjusting IF gain
Adjusting IF flatness
Display resolution:
≤
0.01 dB
Settling: ±0.1%
Instrumentation accuracy: <±0.5%
Noise, zero set, and drift:
≤
±0.5% full-scale
(lowest range)
Reference power uncertainty:
≤
±0.9%
Reference output VSWR: <1.04:1
Power sensor
(quantity: 2)
Anritsu MA247XD
Characterizing RF source power
Characterizing cable loss
Verifying third-order intercept point
out-of-band
Adjusting IF gain for bypass path
Adjusting IF gain
Adjusting IF flatness
Power range: -60 dBm to 20 dBm
Frequency range: 10 MHz to 18 GHz
Input VSWR:
10 MHz to 50 MHz .............. <1.90:1
50 MHz to 2 GHz................. <1.12:1
2 GHz to 12.4 GHz .............. <1:22:1
12.4 GHz to 18 GHz ............ <1:25:1
Linearity:
-60 dBm to 20 dBm.............. <1.8%
Calibration factor uncertainty:
10 MHz to 50 MHz .............. <1.9%
50 MHz to 500 MHz ............ <1.5%
500 MHz to 7 GHz............... <1.5%
7 GHz to 12.4 GHz .............. <1.9%
12.4 GHz to 18 GHz ............ <2.3%