This document describes the performance and features of
Agilent’s 50 and 75 ohm 8712E series RF vector network analyzers:
• 8712ET transmission/reflection vector network analyzer,
300 kHz to 1.3 GHz
• 8712ES S-parameter vector network analyzer,
300 kHz to 1.3 GHz
• 8714ET transmission/reflection vector network analyzer,
300 kHz to 3.0 GHz
• 8714ES S-parameter vector network analyzer,
300 kHz to 3.0 GHz
For more information about these analyzers, please read the
following documents:
• 8712E Series Brochure: 5967-6316E
• 8712E Series Configuration Guide: 5967-6315E
8712ET and 8712ES 300 kHz to 1.3 GHz
8714ET and 8714ES 300 kHz to 3.0 GHz
PORT 1
PORT 2
Agilent Technologies
8712E Series RF Vector
Network Analyzers
Technical Specifications
2
All specifications and characteristics apply over a 25° C ±5° C range (unless
otherwise stated) and 60 minutes after the instrument has been turned on.
Definitions
Specifications: Warranted performance. Specifications include guardbands to
account for the expected statistical distribution, measurement uncertainties,
and changes in performance due to environmental conditions.
Characteristics: A performance parameter that the product is expected to meet
before it leaves the factory, but is not verified in the field, and is not covered
by the product warranty. A characteristic includes the same guardbands as a
specification.
Typical: Expected performance of an average instrument which does not
include guardbands. It is not covered by the instrument’s warranty.
Nominal: A general, descriptive term that does not imply a level of performance. It is not covered by the instrument’s warranty.
Supplemental information: may include typical, nominal or characteristic values.
Calibration is the process of measuring known standards from a calibration kit
to characterize a network analyzer’s systematic (repeatable) errors.
Corrected (residual) performance: Indicates performance after error correction
(calibration). It is determined primarily by the quality of the calibration
standards and how well “known” they are, plus the effects of system
repeatability, stability, and noise.
Uncorrected (raw) performance: Indicates performance without error
correction (calibration). Uncorrected performance affects the stability of a
calibration — the better the raw performance, the more stable the calibration.
Introduction
Table of contents
System performance, two-port calibration . . . . . . . . . . . . . . . . . . 3
System performance, T/R calibration . . . . . . . . . . . . . . . . . . . . . . 8
System performance, uncorrected . . . . . . . . . . . . . . . . . . . . . . . . 14
Test port output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Test port input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Block diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Product features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3
System Performance, 2-Port Calibration (7-mm, 50 Ω)
8712ES/8714ES
85031B (7-mm, 50 Ω) Cal Kit, User 2-Port Calibration
Description
Specificationa(in dB)
300 kHz 1.3 GHz
to 1.3 GHz to 3 GHz
Directivity 55 51
Source Match 51 49
Load Match 55 51
Reflection Tracking ±0.012 ±0.005
Transmission Tracking ±0.033 ±0.035
Transmission Uncertainty (Specification)
a,b
Magnitude Phase
Reflection Uncertainty (Specification)
a
Magnitude Phase
a. These specifications apply for measurements made using the “fine” (15 Hz) bandwidth, no averaging, and at an ambient temperature
of 25° ±5° C, with less than 1° C deviation from the calibration temperature.
b. For transmission measurements, the effect of crosstalk is disregarded and S12=S21for S
21
< 1.0, S12=1/S21for S21> 1.0
4
System Performance, 2-Port Calibration (Type-N, 50 Ω)
8712ES/8714ES
85032B/E (Type-N, 50 Ω) Cal Kit, User 2-Port Calibration
Description
Specificationa(in dB)
300 kHz 1.3 GHz
to 1.3 GHz to 3 GHz
Directivity 50 47
Source Match 42 36
Load Match 50 47
Reflection Tracking ±0.02 ±0.02
Transmission Tracking ±0.04 ±0.055
Transmission Uncertainty (Specification)
a,b
Magnitude Phase
Reflection Uncertainty (Specification)
a
Magnitude Phase
a. These specifications apply for measurements made using the “fine” (15 Hz) bandwidth, no averaging, and at an ambient temperature
of 25° ±5° C, with less than 1° C deviation from the calibration temperature.
b. For transmission measurements, the effect of crosstalk is disregarded and S12=S21for S
21
< 1.0, S12=1/S21for S21> 1.0
5
System Performance, 2-Port Calibration (3.5 mm, 50 Ω)
8712ES/8714ES
85033D (3.5 mm, 50 Ω) Cal Kit, User 2-Port Calibration
Description
Specificationa(in dB)
300 kHz 1.3 GHz
to 1.3 GHz to 3 GHz
Directivity 46 43
Source Match 44 41
Load Match 46 43
Reflection Tracking ±0.016 ±0.008
Transmission Tracking ±0.04 ±0.05
Transmission Uncertainty (Specification)
a,b
Magnitude Phase
Reflection Uncertainty (Specification)
a
Magnitude Phase
a. These specifications apply for measurements made using the “fine” (15 Hz) bandwidth, no averaging, and at an ambient temperature
of 25° ±5° C, with less than 1° C deviation from the calibration temperature.
b. For transmission measurements, the effect of crosstalk is disregarded and S12=S21for S
21
< 1.0, S12=1/S21for S21> 1.0
6
System Performance, 2-Port Calibration (7-16, 50 Ω)
8712ES/8714ES
85038A (7-16, 50 Ω) Cal Kit, User 2-Port Calibration
Description
Specificationa(in dB)
300 kHz 1.3 GHz
to 1.3 GHz to 3 GHz
Directivity 40 40
Source Match 37 37
Load Match 40 40
Reflection Tracking ±0.1 ±0.09
Transmission Tracking ±0.054 ±0.063
Transmission Uncertainty (Specification)
a,b
Magnitude Phase
Reflection Uncertainty (Specification)
a
Magnitude Phase
a. These specifications apply for measurements made using the “fine” (15 Hz) bandwidth, no averaging, and at an ambient temperature
of 25° ±5° C, with less than 1° C deviation from the calibration temperature.
b. For transmission measurements, the effect of crosstalk is disregarded and S12=S21for S
21
< 1.0, S12=1/S21for S21> 1.0
7
System Performance, 2-Port Calibration (Type-N, 75 Ω)
8712ES/8714ES with Option 1EC
a
85036B/E (Type-N, 75 Ω) Cal Kit, User 2-Port Calibration
Description
Specificationb(in dB)
300 kHz 1.3 GHz
to 1.3 GHz to 3 GHz
Directivity 48 43
Source Match 41 35
Load Match 48 43
Reflection Tracking ±0.021 ±0.02
Transmission Tracking ±0.042 ±0.062
Transmission Uncertainty (Specification)
b,c
Magnitude Phase
Reflection Uncertainty (Specification)
b
Magnitude Phase
a. Option 1EC provides 75 Ω system impedance.
b. These specifications apply for measurements made using the “fine” (15 Hz) bandwidth, no averaging, and at an ambient temperature
of 25° ±5° C, with less than 1° C deviation from the calibration temperature.
c. For transmission measurements, the effect of crosstalk is disregarded and S12=S21for S
21
< 1.0, S12=1/S21for S
21
> 1.0
8
System Performance, 2-Port Calibration (Type-F, 75 Ω)
8712ES/8714ES with Option 1EC
a
85039B (Type-F, 75 Ω) Cal Kit, User 2-Port Calibration
Description
Specificationb(in dB)
300 kHz 1.3 GHz
to 1.3 GHz to 3 GHz
Directivity 38 32
Source Match 36 30
Load Match 38 32
Reflection Tracking
c
±0.019 ±0.033
Transmission Tracking
c
±0.045 ±0.09
Transmission Uncertainty (Specification)
b,d
Magnitude Phase
Reflection Uncertainty (Specification)
b
Magnitude Phase
a. Option 1EC provides 75 Ω system impedance.
b. These specifications apply for measurements made using the “fine” (15 Hz) bandwidth, no averaging, and at an ambient temperature
of 25° ±5° C, with less than 1° C deviation from the calibration temperature.
c. Assumes the use of an 85039B cal kit, and a DUT with a center pin conforming to the 0.77 to 0.86 mm limits.
d. For transmission measurements, the effect of crosstalk is disregarded and S12=S21for S
21
< 1.0, S12=1/S21for S
21
> 1.0
9
8712ES/8714ES
85032B/E (Type-N, 50 Ω) Cal Kit, T/R Calibration
Description
Specificationa(in dB)
300 kHz 1.3 GHz
to 1.3 GHz to 3 GHz
Directivity 50 47
Source Match:
Reflection (One-Port Cal) 42 36
Transmission (Enhanced Response Cal) 42 36
Transmission (Response Cal) 18 15
Load Match 18 15
Reflection Tracking ±0.02 ±0.02
Transmission Tracking:
Enhanced Response Cal ±0.040 ±0.055
Response Cal ±0.17 ±0.3
System Performance, T/R Calibration (Type-N, 50 Ω)
a. These specifications apply for measurements made using the
“fine” (15 Hz) bandwidth, no averaging, and at an ambient
temperature of 25° ±5° C, with less than 1° C deviation from
the calibration temperature.
b. For transmission measurements, the effect of crosstalk is
disregarded and S12=S21for S
21
< 1.0, S12=1/S21for S
21
> 1.0
Transmission Uncertainty: Enhanced Response Calibration (Specification)
a,b
Magnitude Phase
Reflection Uncertainty: One-Port Calibration (Specification)
a
Transmission Uncertainty: Response Calibration (Specification)
a,b
Magnitude Phase
Magnitude Phase
10
8712ET/8714ET
85032B/E (Type-N, 50 Ω) Cal Kit, T/R Calibration
Description
Specificationa(in dB)
300 kHz 1.3 GHz
to 1.3 GHz to 3 GHz
Directivity 50 47
Source Match:
Reflection (One-Port Cal) 42 36
Transmission (Enhanced Response Cal) 42 36
Transmission (Response Cal) 23 19
Load Match 18 15
Reflection Tracking ±0.02 ±0.02
Transmission Tracking:
Enhanced Response Cal ±0.039 ±0.052
Response Cal ±0.105 ±0.197
System Performance, T/R Calibration (Type-N, 50 Ω), continued
a. These specifications apply for measurements made using the
“fine” (15 Hz) bandwidth, no averaging, and at an ambient
temperature of 25° ±5° C, with less than 1° C deviation from
the calibration temperature.
b. For transmission measurements, the effect of crosstalk is
disregarded and S12=S21for S
21
< 1.0, S12=1/S21for S
21
> 1.0
Transmission Uncertainty: Enhanced Response Calibration (Specification)
a,b
Magnitude Phase
Reflection Uncertainty: One-Port Calibration (Specification)
a
Transmission Uncertainty: Response Calibration (Specification)
a,b
Magnitude Phase
Magnitude Phase
11
8712ET/8714ET with Attenuator Option 1E1
a
85032B/E (Type-N, 50 Ω) Cal Kit, T/R Calibration
Description
Specificationb(in dB)
300 kHz 1.3 GHz
to 1.3 GHz to 3 GHz
Directivity 50 47
Source Match:
Reflection (One-Port Cal) 42 36
Transmission (Enhanced Response Cal) 42 36
Transmission (Response Cal) 21 15
Load Match 18 15
Reflection Tracking ±0.02 ±0.02
Transmission Tracking:
Enhanced Response Cal ±0.039 ±0.055
Response Cal ±0.13 ±0.3
System Performance, T/R Calibration (Type-N, 50 Ω), continued
a. Option 1E1 adds a 60 dB step attenuator.
b. These specifications apply for measurements made using the
“fine” (15 Hz) bandwidth, no averaging, and at an ambient
temperature of 25° ±5° C, with less than 1° C deviation from
the calibration temperature.
c. For transmission measurements, the effect of crosstalk is
disregarded and S12=S21for S
21
< 1.0, S12=1/S21for S
21
> 1.0.
Transmission Uncertainty: Enhanced Response Calibration (Specification)
b,c
Magnitude Phase
Reflection Uncertainty: One-Port Calibration (Specification)
b
Transmission Uncertainty: Response Calibration (Specification)
b,c
Magnitude Phase
Magnitude Phase
12
8712ES/8714ES with Option 1EC
a
85036B/E (Type-N, 75 Ω) Cal Kit, T/R Calibration
Description
Specificationb(in dB)
300 kHz 1.3 GHz
to 1.3 GHz to 3 GHz
Directivity 48 43
Source Match:
Reflection (One-Port Cal) 41 35
Transmission (Enhanced Response Cal) 41 35
Transmission (Response Cal) 18 15
Load Match 18 15
Reflection Tracking ±0.021 ±0.02
Transmission Tracking:
Enhanced Response Cal ±0.042 ±0.062
Response Cal ±0.17 ±0.3
System Performance, T/R Calibration (Type-N, 75 Ω)
a. Option 1EC provides 75 Ω system impedance.
b. These specifications apply for measurements made using the
“fine” (15 Hz) bandwidth, no averaging, and at an ambient
temperature of 25° ±5° C, with less than 1° C deviation from
the calibration temperature.
c. For transmission measurements, the effect of crosstalk is
disregarded and S12=S21for S
21
< 1.0, S12=1/S21for S
21
> 1.0.
Transmission Uncertainty: Enhanced Response Calibration (Specification)
b,c
Magnitude Phase
Reflection Uncertainty: One-Port Calibration (Specification)
b
Transmission Uncertainty: Response Calibration (Specification)
b,c
Magnitude Phase
Magnitude Phase
13
8712ET/8714ET with Option 1ECa(without Attenuator)
85036B/E (Type-N, 75 Ω) Cal Kit, T/R Calibration
Description
Specificationb(in dB)
300 kHz 1.3 GHz
to 1.3 GHz to 3 GHz
Directivity 48 43
Source Match:
Reflection (One-Port Cal) 41 35
Transmission (Enhanced Response Cal) 41 35
Transmission (Response Cal) 23 19
Load Match 18 15
Reflection Tracking ±0.021 ±0.02
Transmission Tracking:
Enhanced Response Cal ±0.04 ±0.058
Response Cal ±0.11 ±0.2
System Performance, T/R Calibration (Type-N, 75 Ω), continued
a. Option 1EC provides 75 Ω system impedance.
b. These specifications apply for measurements made using the
“fine” (15 Hz) bandwidth, no averaging, and at an ambient
temperature of 25° ±5° C, with less than 1° C deviation from
the calibration temperature.
c. For transmission measurements, the effect of crosstalk is
disregarded and S12=S21for S
21
< 1.0, S12=1/S21for S
21
> 1.0.
Transmission Uncertainty: Enhanced Response Calibration (Specification)
b,c
Magnitude Phase
Reflection Uncertainty: One-Port Calibration (Specification)
b
Transmission Uncertainty: Response Calibration (Specification)
b,c
Magnitude Phase
Magnitude Phase
14
8712ET/8714ET with Options 1EC and 1E1
a
85036B/E (Type-N, 75 Ω) Cal Kit, T/R Calibration
Description
Specificationb(in dB)
300 kHz 1.3 GHz
to 1.3 GHz to 3 GHz
Directivity 48 43
Source Match:
Reflection (One-Port Cal) 41 35
Transmission (Enhanced Response Cal) 41 35
Transmission (Response Cal) 21 15
Load Match 18 15
Reflection Tracking ±0.021 ±0.02
Transmission Tracking:
Enhanced Response Cal ±0.04 ±0.062
Response Cal ±0.125 ±0.295
System Performance, T/R Calibration (Type-N, 75 Ω), continued
a. Option 1EC provides 75 Ω system impedance. Option 1E1 adds
a 60 dB step attenuator.
b. These specifications apply for measurements made using the
“fine” (15 Hz) bandwidth, no averaging, and at an ambient
temperature of 25° ±5° C, with less than 1° C deviation from
the calibration temperature.
c. For transmission measurements, the effect of crosstalk is
disregarded and S12=S21for S
21
< 1.0, S12=1/S21for S
21
> 1.0.
Transmission Uncertainty: Enhanced Response Calibration (Specification)
b,c
Magnitude Phase
Reflection Uncertainty: One-Port Calibration (Specification)
b
Transmission Uncertainty: Response Calibration (Specification)
b,c
Magnitude Phase
Magnitude Phase
15
8712ET/ES and 8714ET/ES (Type-N, 50 Ω)
8712ET/8714ET
8712ET/8714ET
Description 8712ES/8714ES with Attenuator
(without Attenuator)
Option 1E1
a
300 kHz 1.3 GHz 300 kHz 1.3 GHz 300 kHz 1.3 GHz
to 1.3 GHz to 3 GHz to 1.3 GHz to 3 GHz to 1.3 GHz to 3 GHz
Specificationb(in dB)
Directivity
c
29 23 29 23 29 21
Source Match (Ratio)
d
18 15 23 19 21 15
Load Match
e
18 15 18 15 18 15
Crosstalk
f
88 88 97 97 97 97
Typicalb(in dB)
Directivity
c
40 30 42 32 42 32
Source Match (Ratio)
d
23 20 30 23 26 21
Load Match
e
24 21 24 22 24 22
Reflection Tracking ±2.0 ±2.0 ±1.0 ±1.0 ±1.0 ±1.5
Transmission Tracking ±2.0 ±2.0 ±1.5 ±1.5 ±1.5 ±1.5
Crosstalk
f
95 95 105 105 105 105
8712ET/ES and 8714ET/ES with Option 1EC (Type-N, 75 Ω)
8712ET/8714ET
8712ET/8714ET
Description 8712ES/8714ES with Attenuator
(without Attenuator)
Option 1E1
a
300 kHz 1.3 GHz 300 kHz 1.3 GHz 300 kHz 1.3 GHz
to 1.3 GHz to 3 GHz to 1.3 GHz to 3 GHz to 1.3 GHz to 3 GHz
Specificationb(in dB)
Directivity
c
27 19 27 18 27 19
Source Match (Ratio)
d
18 15 23 19 21 15
Load Match
e
18 15 18 15 18 15
Crosstalk
f
88 88 97 97 97 97
Typicalb(in dB)
Directivity
c
40 30 40 30 40 30
Source Match (Ratio)
d
23 20 28 23 24 20
Load Match
e
24 22 24 22 24 22
Reflection Tracking ±1.5 ±1.5 ±1.0 ±1.0 ±1.0 ±1.5
Transmission Tracking ±1.5 ±1.5 ±1.0 ±1.0 ±1.5 ±1.5
Crosstalk
f
95 95 105 105 105 105
System Performance, Uncorrected
a. Option 1E1 adds a 60 dB step attenuator to the 8712ET/8714ET.
b. These numbers apply for a measurement made using the “fine” bandwidth at an environmental temperature of 25° ±5° C.
c. The uncorrected directivity of a network analyzer is calculated in linear terms by dividing the reflection measurement of an ideal
load by the average of the reflection measurements of an ideal short and an ideal open.
d. The uncorrected source match is the source match of the network analyzer when making a ratioed, uncalibrated measurement.
e. The uncorrected load match is the match of the network analyzer port used on the load side of a measurement.
f. 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).
16
8712ET/ES and 8714ET/ES Test Port Output
Description Specification (in dB) Supplemental Information
Frequency
Range:
8712ET/ES 300 kHz to 1.3 GHz
8714ET/ES 300 kHz to 3.0 GHz
Resolution 1 Hz
Stability ±5 ppm, 0° to 55° C, typical
CW Accuracy ±5 ppm, 25° ±5° C <1 Hz with 10% change in
line voltage, typical
Signal Purity
Harmonics:
8712ET/ES <–20 dBc at <1 MHz
<–30 dBc at >1 MHz
8714ET/ES <–30 dBc
Nonharmonic Spurious:
8712ET/ES, <50 kHz from carrier <–25 dBc, characteristic
8712ET/ES, >50 kHz from carrier <–20 dBc at <1 MHz, char.
<–30 dBc at >1 MHz, char.
8714ET/ES, <50 kHz from carrier <–25 dBc, characteristic
8714ET/ES, >50 kHz from carrier <–30 dBc, characteristic
Phase Noise (at 10 kHz offset):
8712ET/ES <–67 dBc/Hz, characteristic
8714ET/ES <–67 dBc/Hz, characteristic
Residual AM (in 100 kHz bandwidth) <–50 dBc, nominal
Residual FM (30 Hz to 15 kHz) <1.5 kHz peak, nominal
Output Power
Level Accuracy:
8712ET:
50 Ω: With Attenuator Option 1E1
a
±2.0 dB
Without Attenuator ±1.0 dB
75 Ω: With Attenuator Option 1E1
a
±3.0 dB
Without Attenuator ±1.5 dB
8712ES:
50 Ω ±2.0 dB
75 Ω ±3.0 dB
8714ET:
50 Ω: With Attenuator Option 1E1
a
±2.0 dB
Without Attenuator ±1.0 dB
75 Ω: With Attenuator Option 1E1
a
±3.0 dB at <2 GHz ±3.0 dB at >2 GHz, char.
Without Attenuator ±1.5 dB at <2 GHz ±1.5 dB at >2 GHz, char.
8714ES:
50 Ω ±2.0 dB
75 Ω ±3.0 dB at <2 GHz ±3.0 dB at >2 GHz, char.
Minimum Power:
8712ET:
50 Ω: With Attenuator Option 1E1
a
–60 dBm, nominal
Without Attenuator –0 dBm, nominal
75 Ω: With Attenuator Option 1E1
a
–60 dBm, nominal
Without Attenuator –3 dBm, nominal
8712ES:
50 Ω –60 dBm, nominal
75 Ω –60 dBm, nominal
8714ET:
50 Ω: With Attenuator Option 1E1
a
–60 dBm, nominal
Without Attenuator –5 dBm, nominal
75 Ω: With Attenuator Option 1E1
a
–60 dBm, nominal
Without Attenuator –8 dBm, nominal
8712ES:
50 Ω –60 dBm, nominal
75 Ω –60 dBm, nominal
Test Port Output
a. Option 1E1 adds a 60 dB step attenuator.
17
Test Port Output, continued
8712ET/ES and 8714ET/ES Test Port Output
Description Specification (in dB) Supplemental Information
Output Power (continued) <1 GHz >1 GHz
Maximum Power:
8712ET:
50 Ω: With Attenuator Option 1E1
a
15 dBm 12 dBm
Without Attenuator 16 dBm 13 dBm
75 Ω: With Attenuator Option 1E1
a
12 dBm 9 dBm
Without Attenuator 13 dBm 10 dBm
8712ES:
50 Ω 13 dBm 10 dBm
75 Ω 10 dBm 7 dBm
8714ET:
50 Ω: With Attenuator Option 1E1
a
10 dBm 9 dBm
Without Attenuator 11 dBm 10 dBm
75 Ω: With Attenuator Option 1E1
a
7 dBm 6 dBm at <2 GHz 6 dBm at >2 GHz, characteristic
Without Attenuator 8 dBm 7 dBm at <2 GHz 7 dBm at >2 GHz, characteristic
8714ES:
50 Ω 9 dBm 7 dBm
75 Ω 6 dBm 4 dBm at <2 GHz 4 dBm at >2 GHz, characteristic
Power Resolution 0.01 dBm
Attenuator Switch Points: (All values nominal)
8712ET:
50 Ω: –1, –11, –21, –31, –41, –51 dBm
75 Ω: –4, –14, –24, –34, –44, –54 dBm
8712ES:
50 Ω –3, –13, –23, –33, –43, –53 dBm
75 Ω –6, –16, –26, –36, –46, –56 dBm
8714ET:
50 Ω: –6, –16, –26, –36, –46, –56 dBm
75 Ω: –9, –19, –29, –39, –49, –59 dBm
8714ES:
50 Ω –8, –18, –28, –38, –48, –58 dBm
75 Ω –11, –21, –31, –41, –51 dBm
a. Option 1E1 adds a 60 dB step attenuator .
b. Pmax = maximum power
8712ET/ES and 8714ET/ES Test Port Output
Description Nominal (in dBm)
Output Power (continued) Attenuator
0 dB 10 dB 20 dB 30 dB 40 dB 50 dB 60 dB
Power Sweep Ranges:
8712ET:
50 Ω: With Attenuator Option 1E1
a
–1 to Pmaxb–11 to 2 –21 to –8 –31 to –18 –41 to –28 –51 to –38 –60 to –48
Without Attenuator 0 to Pmax
b
75 Ω: With Attenuator Option 1E1
a
–4 to Pmaxb–14 to –1 –24 to –11 –34 to –21 –44 to –31 –54 to –41 –60 to –51
Without Attenuator –3 to Pmax
b
8712ES:
50 Ω –3 to Pmaxb–13 to 0 –23 to –10 –33 to –20 –43 to –30 –53 to –40 –60 to –50
75 Ω –6 to Pmaxb–16 to –3 –26 to –13 –36 to –23 –46 to –33 –56 to –43 –60 to –53
8714ET:
50 Ω: With Attenuator Option 1E1
a
–6 to Pmaxb–16 to –1 –26 to –11 –36 to –21 –46 to –31 –56 to –41 –60 to –51
Without Attenuator –5 to Pmax
b
75 Ω: With Attenuator Option 1E1
a
–9 to Pmaxb–19 to –4 –29 to –14 –39 to –24 –49 to –34 –59 to –44 –60 to –54
Without Attenuator –8 to Pmax
b
8714ES:
50 Ω –8 to Pmaxb–18 to –3 –28 to –13 –38 to –23 –48 to –33 –58 to –43 –60 to –53
75 Ω –11 to Pmaxb–21 to –6 –31 to –16 –41 to –26 –51 to –36 –60 to –46 –60 to –56
18
8712ET/ES and 8714ET/ES Test Port Input
Description Specification Supplemental Information
Frequency Range
8712ET/ES
Narrowband 300 kHz to 1.3 GHz
Broadband 10 MHz to 1.3 GHz
8714ET/ES
Narrowband 300 kHz to 3.0 GHz
Broadband 10 MHz to 3.0 GHz
Maximum Input Level
8712ET/8714ET
Narrowband +10 dBm at
0.5 dB compression
Broadband +16 dBm at 0.5 dB
compression, characteristic
8712ES/8714ES
Narrowband +10 dBm at
0.5 dB compression
Broadband +16 dBm at 0.5 dB
compression, characteristic
Damage Level
8712ET/8714ET +20 dBm; ±30 VDC
8712ES/8714ES +26 dBm; ±30 VDC
Broadband Flatness
8712ET/ES and ±1 dB, characteristic
8714ET/ES
Test Port Input
8712ET/ES and 8714ET/ES Test Port Input
Specification Typical
(in dBm) (in dBm)
Description System Bandwidths:
Fine Fine Med Wide Wide
(15 Hz) (15 Hz) (4000 Hz) (6500 Hz)
Noise Floor
a
8712ET/8714ET:
50 Ω:
Narrowband –105 –111 –86 –48
Broadband (Internal) –50 –55 –48 –32
75 Ω:
Narrowband –104 –109 –84 –46
Broadband (Internal) –47 –52 –45 –30
8712ES/8714ES:
50 Ω:
Narrowband –96 –105 –80 –47
Broadband (Internal) –38 –43 –36 –23
75 Ω:
Narrowband –95 –104 –80 –47
Broadband (Internal) –35 –40 –33 –20
System Dynamic Range
b
(in dB)
8712ET:
50 Ω:
With Attenuator Opt.ion 1E1c:
Narrowband 115 121 96 58
Broadband (Internal) 60 67 60 44
Without Attenuator
Narrowband 115 121 96 58
Broadband (Internal) 62 68 61 45
75 Ω:
With Attenuator Option 1E1
b,c
:
Narrowband 110 118 93 55
Broadband (Internal) 53 61 54 39
Without Attenuator
Narrowband 113 119 94 56
Broadband (Internal) 56 62 55 40
8714ET:
50 Ω:
With Attenuator Option. 1E1c:
Narrowband 112 120 95 57
Broadband (Internal) 57 64 57 41
Without Attenuator
Narrowband 114 121 96 58
Broadband (Internal) 59 65 58 42
75 Ω:
With Attenuator Opt.ion 1E1
b,c
:
Narrowband 107 115 90 52
Broadband (Internal) 50 58 51 36
Without Attenuator
Narrowband 110 116 91 53
Broadband (Internal) 53 59 52 37
19
Test Port Input, continued
a. Noise floor is defined as the RMS value of the trace (in linear format) for a transmission measurement in CW frequency mode, with
RF connectors terminated in loads, output power set to 0 dBm, and no averaging. The noise floor specifications and typicals for
narrowband detection measurements assume that an isolation calibration has been performed using an average factor of 16. For the
8712ES/8714ES, external broadband detectors will provide a much lower noise floor than the internal broadband detectors.
b. The System Dynamic Range is calculated as the difference between the receiver noise floor and the minimum of either the source
maximum output (maximum power setting minus output power level accuracy) or the receiver maximum input. System Dynamic
Range applies to transmission measurements only, since reflection measurements are limited by directivity. The System Dynamic
Range for 8714ET/ES 75 Ω analyzers is not a specification for frequencies >2 GHz; it is a characteristic. For the 8712ES/8714ES,
external broadband detectors will provide much more dynamic range than the internal broadband detectors.
c. Option 1E1 adds a 60 dB step attenuator.
20
8712ET/ES and 8714ET/ES Test Port Input
Specification Typical
(in dB) (in dB)
Description System Bandwidths:
Fine Fine Med Wide Wide
(15 Hz) (15 Hz) (4000 Hz) (6500 Hz)
System Dynamic Rangea (continued)
8712ES:
50 Ω:
Narrowband 104 115 90 57
Broadband (Internal) 46 53 46 33
75 Ω:
Narrowband 99 111 87 54
Broadband (Internal) 39 47 40 27
8714ES:
50 Ω:
Narrowband 101 112 87 54
Broadband (Internal) 43 50 43 30
75 Ω:
Narrowband 96 108 84 51
Broadband (Internal) 36 44 37 24
Receiver Dynamic Range
b
8712ET/8714ET:
50 Ω:
Narrowband 115 121 96 58
Broadband (Internal) 66 71 64 48
75 Ω:
Narrowband 114 119 94 56
Broadband (Internal) 63 68 61 46
8712ES/8714ES:
50 Ω:
Narrowband 106 115 90 57
Broadband (Internal) 54 59 52 39
75 Ω:
Narrowband 105 114 90 57
Broadband (Internal) 51 56 49 36
Narrow Narrow Med Wide Wide
(250 Hz) (250 Hz) (4000 Hz) (6500 Hz)
Trace Noise
c
8712ET/8714ET:
Narrowband:
Magnitude 0.01 dB rms 0.03 dB-pp 0.12 dB-pp 0.28 dB-pp
Phase 0.2 deg-pp 2.5 deg-pp 3.4 deg-pp
Broadband:
Magnitude 0.01 dB rms 0.01 dB-pp 0.02 dB-pp 0.15 dB-pp
8712ES/8714ES:
Narrowband:
Magnitude 0.01 dB rms 0.02 dB-pp 0.06 dB-pp 0.23 dB-pp
Phase 0.2 deg-pp 0.8 deg-pp 1.8 deg-pp
Broadband:
Magnitude 0.01 dB rms 0.01 dB-pp 0.03 dB-pp 0.16 dB-pp
Test Port Input, continued
a. The System Dynamic Range is calculated as the difference between the receiver noise floor and the minimum of either the source
maximum output (maximum power setting minus output power level accuracy) or the receiver maximum input. System Dynamic
Range applies to transmission measurements only, since reflection measurements are limited by directivity. The System Dynamic
Range for 8714ET/ES 75 Ω analyzers is not a specification for frequencies >2 GHz; it is a characteristic. For the 8712ES/8714ES,
external broadband detectors will provide much more dynamic range than the internal broadband detectors.
b. The Receiver Dynamic Range is calculated as the difference between the receiver noise floor and the receiver maximum input.
Receiver Dynamic Range applies to transmission measurements only, since reflection measurements are limited by directivity. The
Receiver Dynamic Range for 8714ET/ES 75 Ω analyzers is not a specification for frequencies >2 GHz; it is a characteristic. For the
8712ES/8714ES, external broadband detectors will provide much more dynamic range than the internal broadband detectors.
c. Trace noise is defined for a transmission measurement in CW mode, using a “through” cable having 0 dB loss, with the source set to
0 dBm, and the analyzer’s averaging function turned off.
21
Dynamic Accuracy (Specification)
a,b
8712ET/8714ET:
Magnitude Phase
Dynamic Accuracy (Specification)
a,b
8712ES/8714ES:
Magnitude Phase
Test Port Input, continued
a. Narrowband detection mode
b. The reference power for dynamic accuracy is –20 dBm.
22
Power Accuracy (Characteristic)
a
8712ET/8714ET: 8712ES/8714ES:
Magnitude Magnitude
0.1
1
10
-50-40-3 0-20-10010
Test Port Power (dBm)
Accuracy (dB)
75 Ω
50 Ω
0.1
1
10
-50-40-30-20-10010
Test Port Power (dBm )
Accuracy (dB)
75 Ω
50 Ω
Group Delay Accuracy (Specification)
b
8712ET/ES and 8714ET/ES
Magnitude
0.01
0.1
1
10
100
0.01 0.1 10 100
Aperture (MHz)
Accuracy (nsec)
1.3 GHz
3.0 GHz
Full Two Port or Enhanced Calibration
Test Port Input, continued
a. At 30 MHz, broadband mode, internal detectors
b. Valid for 85032B/E (type-N, 50 Ω) and 85036B/E (type-N, 75 Ω) cal kits using either a two-port or enhanced response calibration.
23
General Information
8712ET/ES and 8714ET/ES General Information
Description Specification Supplemental Information
Display Range
Magnitude 200 dB (at 20 dB/div), max
Phase 1800° (at 180°/div), max
Polar 1 MUnit, max
Display Resolution
Magnitude 0.01 dB/div, min
Phase 0.1°/div, min
Polar 10 µUnit full scale, min
Reference Level Range
Magnitude 500 dB, max
Phase 360°, max
Reference Level Resolution
Magnitude 0.01 dB, min
Phase 0.01°, min
Marker Resolution
Magnitude 0.001 dB, min
Phase 0.01°, min
Polar 0.01 mUnit, min; 0.01°, min
Group Delay Aperture
Magnitude 20% of frequency span
Phase Frequency span ÷ (num. of points –1)
Group Delay Range
1 ÷ (2 x minimum aperture) The maximum delay is limited to measuring no more than 180° of
phase change within the minimum aperture.
System Bandwidths
Wide (6500 Hz) 6500 Hz, nominal
Medium Wide (4000 Hz) 4000 Hz, nominal
Medium (3700 Hz) 3700 Hz, nominal
Medium Narrow (1200 Hz) 1200 Hz, nominal
Narrow (250 Hz) 250 Hz, nominal
Fine (15 Hz) 15 Hz, nominal
24
8712ET/ES and 8714ET/ES General Information
Description Specification Supplemental Information
Rear Panel
Auxiliary Input:
Connector Female BNC
Impedance 10 kΩ, nominal
Range ±10 V
Accuracy ±3% of reading + 20 mV
Damage Level >+15 V; <–15 V
External Trigger In/Out: Female BNC; open-collector with 681 Ω nom. pullup resistor to +5 V, nominal.
Normally high, pulsed low after each data point is measured.
Damage Level <–0.2 V; >+5.2 V
Limit Test Output: Female BNC; open-collector with 681 Ω nom. pullup resistor to +5 V, nominal.
Normally high, pulled low when limit test fails.
Damage Level <–0.2 V; >+5.2 V
User TTL Input/Output: Female BNC; open-collector with 681 Ω nom. pullup resistor to +5 V, nominal.
Programmable as: high-sweep output; trigger input; general I/O for IBASIC.
Damage Level <–0.2 V; >+5.2 V
External Reference In:
Input Frequency 10 MHz, nominal
Input Power –5 dBm to +12 dBm, nominal
Input Impedance 50 Ω, nominal
VGA Video Output 15-pin mini D-Sub; female. Firmware supports normal and inverse video color formats.
GPIB Type-57, 24-pin; Microribbon female
X and Y External Detector Inputs 12-pin circular; female
Parallel Port 25-pin D-Sub (DB-25); female
LAN 8-pin RJ45; female
RS232 9-pin D-Sub (DB-9); male
Mini-DIN Keyboard/Barcode Reader 6-pin mini DIN (PS/2); female
Line Powera:
Frequency 47 Hz to 63 Hz
Voltage at 115 V setting 90 V to 132 V 115 V, nominal.
Voltage at 220 V setting 198 V to 264 V 230 V, nominal.
Power 300 VA, max 230 W, nominal
Front Panel
RF Connectors Type-N female; 50 Ω, nominal
(With Option 1EC only: type-N female; 75 Ω, nominal)
Probe Power: 3-pin connector; male
Positive Supply 200 mA, max +15 V, nominal; 0.75 A fuse, nominal
Negative Supply 250 mA, max –12.6 V, nominal; 0.75 A fuse, nominal
General Environmental
RFI/EMI Susceptibility Defined by CISPR Pub. 11 and FCC Class B standards.
ESD Minimize using static-safe work procedures and an antistatic bench mat
(part number 9300-0797).
Dust Minimize for optimum reliability.
Operating Environment
Temperature 0° C to +55° C
Humidity 5% to 95% at +40° C
Altitude 0 to 4.5 km (15,000 ft.)
Storage Conditions
Temperature –40° C to +70° C
Humidity 0% to 95% RH at +65° C
(noncondensing)
Altitude 0 to 15.24 km (50,000 ft.)
Cabinet Dimensions
Height x Width x Depth 179 x 425 x 514 mm (7.0 x 16.75 x 20.25 in), nominal
Cabinet dimensions exclude front and rear protrusions.
Weight
Shipping 40 kg (88 lb.), nominal
Net 24.4 kg (54 lb.), nominal
a. A third-wire ground is required.
General Information, continued
25
8712ET/ES and 8714ET/ES General Information
Measurement Speed Conditions
a
Typical
Cal Number Measurement Number Frequency Cycle Recall Data Measurement
Type of Channels Bandwidth (Hz) of Points Span
b
Tim e
c
State & Cal
d
Transfer
e
Cycle
f
1-port 1 6500 201 100 MHz 72 ms
1-port 1 6500 201 2 GHz 160 ms
1-port 1 4000 11 100 MHz 37 ms
1-port 1 4000 21 100 MHz 42 ms
1-port 1 4000 51 100 MHz 55 ms 470 ms 26 ms 630 ms
1-port 1 4000 101 100 MHz 76 ms
1-port 1 4000 201 100 MHz 119 ms 580 ms 38 ms 760 ms
1-port 1 4000 201 2 GHz 180 ms
1-port 1 4000 401 100 MHz 207 ms
1-port 1 4000 801 100 MHz 380 ms
1-port 1 4000 1601 100 MHz 730 ms 1600 ms 160 ms 2560 ms
1-port 1 3700 201 100 MHz 157 ms
1-port 1 3700 201 2 GHz 218 ms
1-port 1 1200 201 100 MHz 332 ms
1-port 1 1200 201 2 GHz 394 ms
1-port 1 250 201 100 MHz 1520 ms
1-port 1 250 201 2 GHz 1604 ms
1-port 1 15 201 100 MHz 12320 ms
1-port 1 15 201 2 GHz 12380 ms
1-port 2 4000 51 100 MHz 56 ms 630 ms 58 ms 840 ms
1-port 2 4000 201 100 MHz 120 ms 840 ms 80 ms 1100 ms
1-port 2 4000 1601 100 MHz 736 ms 2600 ms 310 ms 3700 ms
2-port 1 4000 51 100 MHz 109 ms 500 ms 26 ms 720 ms
2-port 1 4000 201 100 MHz 240 ms 670 ms 38 ms 1040 ms
2-port 1 4000 1601 100 MHz 1460 ms 2200 ms 160 ms 3950 ms
2-port 2 4000 51 100 MHz 109 ms 710 ms 60 ms 1130 ms
2-port 2 4000 201 100 MHz 240 ms 940 ms 78 ms 1470 ms
2-port 2 4000 1601 100 MHz 1460 ms 3500 ms 310 ms 5480 ms
General Information, continued
a. Measurements are always made with error correction enabled.
b. Center frequency is set to 1 GHz.
c. “Cycle Time” is the time required for the analyzer to finish one complete sweep cycle including the forward sweep (and reverse
sweep when using two-port calibration), retrace, bandcrossings, and calculation time when in the “Continuous Sweep” mode.
d. This is the time to recall both the system state and calibration data.
e. “Data Transfer” is performed using an HP S700 workstation. The GPIB port is used to transfer “corrected” 64-bit, floating point
numbers (real and imaginary).
f. A “Measurement Cycle” is defined as the time required for an HP S700 workstation to control the analyzer to: (1) recall the state
and calibration (analyzer is now in “sweep hold” mode), (2) sweep (using the “:INIT1; *OPC?” command), and (3) transfer data.
This may be less than the sum of the other columns since a complete “Cycle Time” doesn’t need to be done for the controller
to transfer data.
Measurement throughput summary
26
General Information, continued
Data transfer times
The tables below show the various data transfer speeds that can be expected using different data formats.
Please note the following:
• ASCII data transfers are considerably slower than the other types.
• IBASIC CSUBs (compiled routines) can access trace data faster than an external computer.
• If only a few trace points need to be queried, using markers can be faster.
Number of Trace Points
Data Format 11 51 201 401 1601
Formatted ASCII 14 ms 43 ms 160 ms 305 ms 1200 ms
Formatted Real, 32-bit floating point 10 ms 11 ms 20 ms 24 ms 62 ms
Formatted Real, 64-bit floating point 10 ms 12 ms 20 ms 34 ms 105 ms
Corrected ASCII 20 ms 79 ms 294 ms 574 ms 2239 ms
Corrected Complex, 64-bit floating point 10 ms 16 ms 31 ms 50 ms 172 ms
Corrected Complex, 16-bit integer 10 ms 15 ms 28 ms 32 ms 90 ms
Trace Transfer Time via GPIB (using an HP S700 UX Workstation)
Number of Trace Points
Data Format 11 51 201 401 1601
Formatted ASCII 7 ms 7 ms 7 ms 8 ms 18 ms
Formatted Real, 32-bit floating point 7 ms 7 ms 9 ms 11 ms 31 ms
Accessing Trace Data with IBASIC Using CSUBs
Transferring a Single Marker Value via GPIB
CALC:MARK1:Y? <10 ms
27
Block diagrams
Simplified Block Diagram for the 8712ET and 8714ET
Simplified Block Diagram for the 8712ES and 8714ES
REAR PANEL
External Detectors
Input B*
Input B
Y
AUX Input
Input R
X
Input R*
Reference
RF
Source
Input A
CRT
FRONT PANEL Reflection
(RF Out)
Device
Under
Test
Narrowband Detector
Broadband Detector
Y
X
With Attenuator Option 1E1
Incident
Transmission
Reflected
Transmission
(RF In)
ADC and Processor
REAR PANEL
External Detectors
Input B
Input B*
Y
AUX Input
Input R
X
Input R*
Reference
RF
Source
Input A
CRT
FRONT PANEL
Port 1
Port 2
Device
Under
Test
Narrowband Detector
Broadband Detector
ADC and Processor
Y
X
28
Measurement
Number of display measurements
Two measurement displays are available, with independent control of display parameters including format type,
scale per division, reference level, reference position, and
averaging. The displays can share network analyzer sweep
parameters, or, by using alternate sweep, each measurement can have independent sweep parameters including
frequency settings, IF bandwidth, power level, and number of trace points. The instrument can display a single
measurement, or dual measurements on a split (two
graticules) or overlaid (one graticule) screen.
Measurement choices
• Narrowband
ET models: reflection (A/R), transmission (B/R), A, B, R
ES models: S
11
(A/R), S22(B/R), S21(B/R), S12(A/R),
A, B, R
• Broadband
X, Y, Y/X, X/Y, Y/R*, power (B*, R*), conversion loss
(B*/R*).
Note: X and Y denote external broadband-detector inputs;
* denotes internal broadband detectors.
Formats
Log or linear magnitude, SWR, phase, group delay,
real and imaginary, Smith chart, polar, and impedance
magnitude.
Trace functions
Current data, memory data, memory with current data,
division of data by memory.
Display annotations
Start/stop, center/span, or CW frequency, scale per
division, reference level, marker data, softkey labels,
warning and caution messages, screen titles, time and
date, and pass/fail indication.
Limits
Measurement data can be compared to any combination
of line or point limits for pass/fail testing. User-defined
limits can also be applied to an amplitude- or frequencyreference marker. A limit-test TTL output is available on
the rear panel for external control or indication. Limits
are only available with rectilinear formats.
Data markers
Each measurement channel has eight markers. Markers
are coupled between channels. Any one of eight markers
can be the reference marker for delta-marker operation.
Annotation for up to four markers can be displayed at
one time.
Product features
Marker functions
Markers can be used in absolute or delta modes. Other
marker functions include marker to center frequency,
marker to reference level, marker to electrical delay,
searches, tracking, and statistics. Marker searches include
marker to maximum, marker to minimum, marker to
target value, bandwidth, notch, multi-peak and multinotch. The marker-tracking function enables continuous
update of marker search values on each sweep. Marker
statistics enable measurement of the mean, peak-to-peak
and standard deviation of the data between two markers.
For rapid tuning and testing of cable-TV broadband
amplifiers, slope and flatness functions are also available.
Storage
Internal memory
1.5 Mbytes (ET models) or 1 Mbyte (ES models) of
nonvolatile storage is available to store instrument states,
measurement data, screen images, and IBASIC programs.
Instrument states can include all control settings, limit
lines, memory data, calibration coefficients, and custom
display titles. If no other data files are saved in nonvolatile memory, between about 20 and 150 instrument
states can be saved (depending on the model type and
on instrument parameters). Approximately 14 Mbytes
of volatile memory is also available for temporary storage
of instrument states, measurement data, screen images,
and IBASIC programs.
Disk drive
Trace data, instrument states (including calibration
data), and IBASIC programs can be saved on floppy
disks using the built-in 3.5 inch disk drive. All files are
stored in MS-DOS
®
-compatible format. Instrument
data can be saved in binary or ASCII format (including
Touchstone/.s1p format), and screen graphics can be
saved as PCX (bit-mapped), HPGL (vector), or PCL5
(printer) files.
NFS
See description under Controlling via LAN
29
Product features, continued
HTTP
The instrument's built-in web page can be accessed with
any standard web browser using http (hypertext transfer
protocol) and the network analyzer's IP address. The
built-in web page can be used to control the network
analyzer, view screen images, download documentation,
and link to other sites for firmware upgrades and
VXIplug&play drivers. Some word processor and spread-
sheet programs, such as Microsoft
®
Word 97 and Excel
97, provide methods to directly import graphics and data
via a LAN connection using http and the network analyzer's IP address.
SICL/LAN
The analyzer's support for SICL (standard instrument control library) over the LAN provides control of the network
analyzer using a variety of computing platforms, I/O interfaces, and operating systems. With SICL/LAN, the analyzer
is controlled remotely over the LAN with the same methods used for a local analyzer connected directly to the
computer via a GPIB interface. SICL/LAN protocol also
allows the use of Agilent’s free VXIplug&play driver to
communicate with the multiport test system over a LAN.
SICL/LAN can be used with Windows 95/98/NT
®
, or
HP-UX.
NFS
The analyzer's built-in NFS (network file system) client
provides access to remote files and directories using the
LAN. With NFS, remote files and directories (stored
remotely on a computer) behave like local files and directories (stored locally within the analyzer). Test data taken
by the network analyzer can be saved directly to a remote
PC or UNIX
®
directory, eliminating the need for a remotely initiated ftp session. For Windows-based applications,
third-party NFS-server software must be installed on the
PC. NFS is fully supported in most versions of UNIX.
Bootp
Bootstrap protocol (bootp) allows a network
analyzer to automatically configure itself at power-on with
the necessary information to operate on the network.
After a bootp request is sent by the analyzer, the host
server downloads an IP and gateway address, and a subnet mask. In addition, the analyzer can request an IBASIC
file, which automatically executes after the transfer is
complete. For Windows-based applications, third-party
bootp-server software must be installed on the PC. Bootp
is fully supported in most versions of UNIX.
Data hardcopy
Hardcopy prints can be made using PCL and PCL5
printers (such as HP DeskJet or LaserJet series printers),
or Epson-compatible graphics printers. Single color and
multicolor formats are supported. Hardcopy plots can be
automatically produced with HPGL-compatible plotters
such as the HP 7475A, or with printers that support
HPGL. The analyzer provides Centronics (parallel),
RS-232C, GPIB, and LAN interfaces.
Automation
Controlling via GPIB
Interface
The GPIB interface operates to IEEE 488.2 and SCPI standard-interface commands.
Control
The analyzer can either be the system controller, or pass
bus control to another active controller.
Data transfer formats:
• ASCII
• 32- or 64-bit IEEE 754 floating-point format
• Mass-memory-transfer commands allow file transfer
between external controller and analyzer.
Controlling via LAN
The built-in LAN interface and firmware support data
transfer and control via direct connection to a 10 Base-T
(Ethertwist) network. A variety of standard protocols are
supported, including TCP/IP, sockets, ftp, http, telnet,
bootp, and NFS. The LAN interface is standard.
SCPI interface
The analyzer can be controlled by sending SCPI (standard
commands for programmable instruments) within a telnet
session or via a socket connection and TCP/IP (the default
socket port is 5025). The analyzer's socket applications
programming interface (API) is compatible with Berkeley
sockets, Winsock and other standard socket APIs. Socket
programming can be done in a variety of environments
including C programs, HP VEE, SICL/LAN, or a Java
TM
applet. A standard web browser and the analyzer's built-in
web page can be used to remotely enter SCPI commands
via a Java applet.
FTP interface
Instrument state and data files can be transferred via ftp
(file-transfer protocol). An internal, dynamic-data disk
provides direct access to instrument states, screen dumps,
trace data, and operating parameters.
30
Programming with IBASIC
As a standard feature, all 8712ET/ES and 8714ET/ES network analyzers come with the Instrument BASIC
programming language (IBASIC). IBASIC facilitates
automated measurements and control of other test
equipment, improving productivity. For simpler applications, you can use IBASIC as a keystroke recorder to
easily automate manual measurements. Or you can
use an optional, standard PC keyboard to write custom
test applications that include:
• Special softkey labels
• Tailored user prompts
• Graphical setup diagrams
• Barcode-reading capability
• Control of other test instruments via the GPIB, serial,
or parallel interfaces
Measurement calibration
Measurement calibration significantly reduces measurement uncertainty due to errors caused by transmission
and reflection frequency response, source and load match,
system directivity, and crosstalk. These analyzers feature
factory-installed default calibrations that use
vector-error correction, so that measurements can be
made on many devices without performing a user
calibration.
For greater accuracy, especially for test setups with
significant loss or reflection, user calibrations should
be performed. For reflection measurements, both one-port
and two-port calibrations are available (two-port
calibration requires an ES model). For transmission
measurements, the following calibrations are available:
normalization, response, response and isolation, enhanced
response, and two port (two-port calibration requires an
ES model).
Calibration interpolation
Calibration interpolation is always active. The analyzer
automatically recalculates the error coefficients when
the test frequencies or the number of trace points have
changed. The resulting frequency range must be within
the frequency range used during the user calibration.
If this is not the case, the analyzer reverts to the factory
default calibration. When calibration interpolation is
used, the analyzer displays the C? annotation. System
performance is not specified for measurements using
calibration interpolation.
Product features, continued
Available calibrations
ES models only
• Two-port calibration
Compensates for frequency response, source and load
match, and directivity errors while making S-parameter
measurements of transmission (S
21
, S12) and reflection
(S
11
, S22). Compensates for transmission crosstalk
when the Isolation on OFF softkey is toggled to ON.
Requires short, open, load, and through standards.
ET and ES models: transmission measurements
• Normalization
Provides simultaneous magnitude and phase correction
of transmission frequency response errors. Requires a
through connection. Used for both narrowband and
broadband detection (phase correction is not available
in broadband mode). Does not support calibration
interpolation.
• Response
Simultaneous magnitude and phase correction of
frequency response errors for transmission measure ments. Requires a through standard.
• Response and isolation
Compensates for frequency response and crosstalk
errors. Requires a load termination on both test ports
and a through standard.
• Enhanced response
Compensates for frequency response and source
match errors. Requires short, open, load, and through
standards.
ET and ES models: reflection measurements
• One-port calibration
Compensates for frequency response, directivity, and
source match errors. Requires short, open, and load
standards.
Calibration kits
Data for several standard calibration kits are stored in the
instrument for use by the calibration routines. They
include:
• 3.5 mm (85033D)
• type-N 50 ohm (85032B/E)
• type-N 75 ohm (85036B/E)
• type-F 75 ohm (85039B)
• 7 mm (APC-7) (85031B)
• 7-16 (85038A)
In addition, you can also describe the standards for a
user-defined kit (for example, open-circuit capacitance
coefficients, offset-short length, or through-standard loss).
For more information about calibration kits available
from Agilent, consult the 8712E Series Configuration
Guide, literature number 5967-6315E.
31
Key options
75 ohms (Option 1EC)
Provides 75 ohm system impedance.
Step attenuator (Option 1E1)
Adds a built-in 60 dB step attenuator to
transmission/reflection (ET) models to extend the outputpower range to –60 dBm. The attenuator is standard in
S-parameter (ES) models.
Fault location and structural return loss
(Option 100)
For fully characterizing cable performance and antennafeedline systems, this option provides both fault-location
and structural-return-loss capability. Fault-location
measurements help identify where cable or system faults,
such as bends, shorts, or corroded or damaged connectors, occur. In addition to displaying faults in terms of
distance into the cable or feedline, the magnitude of the
fault is also displayed.
Structural return loss is a special case of return loss
(reflection) measurements, optimized for measuring
periodic reflections of small magnitude. These periodic
reflections can occur from physical damage to the cable
caused by rough handling, or from minor imperfections
imparted during the manufacturing process. Structural
return loss problems occur when these periodic reflections
sum at half-wavelength intervals, causing high signal
reflection (and low transmission) at the corresponding
frequency.
Transport case and fault location and
structural return loss (Option 101)
Combines a rugged transport and operation case
(part number 08712-60059) with Option 100 for field measurements of fault location and structural return loss.
Test sets
87050E multiport test sets
When used with an 8712E series network analyzer, 87050E
multiport test sets provide a complete solution for testing
a variety of 50 ohm multiport devices, including multiband
filters, signal splitters, and distribution amplifiers. Test
sets can be configured with four, eight, or twelve test
ports (for more information, please consult the product
brochure, literature number 5968-4763E).
87075C multiport test sets
When used with an 8712E series network analyzer, 87075C
multiport test sets provide a complete solution for testing
75 ohm multiport devices like CATV distribution amplifiers or multi-taps. Test sets can be configured with six or
twelve test ports (for more information, please consult the
product brochure, literature number 5968-4766E).
Custom multiport test sets
Besides the standard multiport test sets mentioned above,
Agilent can also provide custom multiport test sets. They
are available with mechanical or solid-state switches in 50
and 75 ohm versions, in a variety of configurations and
connector types. Please contact your sales representative
for more information.
Product features, continued
Unix®is a registered trademark of the Open Group.
Microsoft®, Windows®and WindowsNT®are U.S. registered trademarks of Microsoft Corporation
32
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Technical data is subject to change
Copyright © 2000
Agilent Technologies
Printed in U.S.A. 3/00
5967-6314E
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