
Performance Checks 8712ET/ES and 8714ET/ES
System Performance RF Network Analyzers
1-56 Service Guide
Table 1-7 System Performance, Uncorrected, 75Ω
1. Option 1E1 adds a 60 dB step attenuator to the 8712ET/8714ET.
2. These numbers apply for a measurement made using the “Fine” bandwidth at an
environmental temperature of 25°±5 °C.
3. The uncorrected directivity of a network analyzer is calculated in linear terms by
dividing the reflection measurement of a perfect load by the average of the reflec-
tion measurements of an ideal short and an ideal open.
4. The uncorrected source match is the source match of the network analyzer when
making a ratioed, uncalibrated measurement.
5. The uncorrected load match is the match of the network analyzer port used on the
load side of a measurement.
6. Measured by setting output power to the maximum specified setting, connecting
shorts to both ports, and measuring transmission. Typical and specified crosstalk
values are 5 dB worse than those shown in the table below 1 MHz (for all models)
and above 2.2 GHz (for 8714ET/ES models).
8712ET/ES and 8714ET/ES (75 Ω)
Description 8712ES/8714ES
8712ET/8714ET with
Attenuator Option
1E1
1
8712ET/8714ET
(without Attenuator)
300 kHz
to 1.3
GHz
1.3 GHz
to 3 GHz
300 kHz
to 1.3
GHz
1.3 GHz
to 3 GHz
300 kHz
to 1.3
GHz
1.3 GHz
to 3 GHz
Specification
2
(in dB)
Directivity
3
27 19 27 19 27 18
Source Match
(Ratio)
4
18 15 21 15 23 19
Load Match
5
18 15 18 15 18 15
Crosstalk
6
88 88 97 97 97 97
Typical
2
(in dB)
Directivity 40 30 40 30 40 30
Source Match (Ratio) 23 20 24 20 28 23
Load Match 24 22 24 22 24 22
Reflection Tracking ±1.5 ±1.5 ±1.0 ±1.5 ±1.0 ±1.0
Transmission
Tracking
±1.5 ±1.5 ±1.5 ±1.5 ±1.0 ±1.0
Crosstalk
6
95 95 105 105 105 105
Commenti su questo manuale