N7814A Test Equipment

Required Test Equipment table
Calibration Data Validation

This section lists the test equipment needed to run performance tests and adjustments. Models for each test equipment category are given in order of preference. Alternate models are also listed but should be considered a lower priority. Refer to each individual test for specific setup configurations with required cables and adapters.

Required Test Equipment

Instrument	Recommended Model1	Alternative Model1	Use2
Sources
Microwave Signal Generator #1	E8257D Options 567, 1EA/1EU, 1E1 Option 007 (Analog Ramp Sweep) required for Frequency Response Adjustments.	PSG3 For Adjustments only:4 83630A/B/L Opt 001, 008 83640A/B/L Opt 001, 008 83650A/B/L Opt 001, 008	A, P, T
Microwave Signal Generator #2 Only required for Third Order Intermodulation and Gain Compression.	E8257D Opt 1EA/1EU	PSG3 83630A/B/L4 Opt 001, 008 83640A/B/L4 Opt 001, 008 83650A/B/L4 Opt 001, 008	P
Low Noise Signal Generator One PSG may be used for multiple sources. See footnote below.	E8257D Options UNR, UNX, or UNY	PSG3 Options UNR, UNX, or UNY	A, P, T
RF Signal Generator One PSG may be used for multiple sources. See footnote below.	E8257D Options UNR, UNX, or UNY Option 1E1 required for CXA Option C75 Frequency Response test and adjustment. Option 007 required for CXA adjustments.	PSG3 Options UNR, UNX, or UNY Option 1E1 required for CXA Option C75 Frequency Response test and adjustment. Option 007 required for CXA adjustments.	A, P
Ultra Low Noise Source Preferred solution for Phase Noise Performance Test. Required for certain X-Series models. See Phase Noise Performance Test.	Wenzel Associates Inc Ultra Low Noise Reference Frequency Source: Model 500-13438 Rev D Rev D is required for DUTs with Option EP0.	Model 500-13438 Rev C Rev C can be used as an alternate for all X-Series models EXCEPT for those with Option EP0. The performance of Rev C is insufficient for models with Option EP0.	P
Function Generator	33622A	33612A 33611A 33621A 33250A 33120A Option 001 Cannot be used for Option BBA, UXA > Option 526 adjustments, or any CXA Frequency Response Adjustments.	A, P
Analyzers
Spectrum Analyzer Required for testing CXA Option T03/T06 only.	N9030B	N9030A E4440A E4445A E4446A E4448A	A, P
Network Analyzer Used in adjustments for: N9020B options > 526 N9021B all options N9030B options > 526 N9040B options > 526	N5247B	N5247A/AS N5245B N5245A/AS	A, U
Audio Analyzer Required for N9030B Option 107.	U8903B	Stanford Research Ultra Low Distortion Function Generator Model DS360	P
Counters
Universal Counter	53230A	53132A 53131A	A, P, T
Meters and Power Sensors (See below for power sensor calibration service ordering guidelines.)
Digital Multimeter	3458A	34470A	A, P, T
Power Meter	N1914B	N1914A5, 7 N1912A E4419A/B Not allowed for the N9041B Total Amplitude Accuracy tests.	A, P, U
RF Power Sensor, Type-N (m) connector 2 required	N8482A	N8482A CFT 8482A Option H84 8482A6 (Non-H84 sensors will increase measurement uncertainty.)	A, P
RF Power Sensor, Type-N (m) connector 2 required CXA only	E9304A Option H18		A, P
Microwave Power Sensor, 3.5 mm (m) connector For N9030B and N9040B options > 526	E9304A Option H20		A
Microwave Power Sensor, 3.5 mm (m) connector 2 required For options ≤ 526	N8485A	N8485A CFT 8485A	A, P
Millimeter Power Sensor, 2.4 mm (m) connector 2 required For options > 526	N8487A-CFT	N8487A 8487A	A, P
Millimeter Power Sensor 3, 2.4 mm (m) connector Required for Network Analyzer Freq Sweep Calibration	N8487A (not for N9021B)	N8488A	A, U
Millimeter Power Sensor 4, 1.85 mm (m) connector For N9021B Required for Network Analyzer Freq Sweep Calibration	N8488A	None	A, U
Low Power Millimeter Power Sensor, 2.4 mm (m) connector For options > 526	8487D		A, P
Low Power Microwave Power Sensor, 3.5 mm (m) connector 2 required For Options P08, P13, or P26 only.	8485D		A, P
USB Power Sensor7, DC to 120 GHz, 1.0 mm (f) connector For N9041B	U8489A Option 200		P
75 Ω Power Sensor, Type-N (m) connector For CXA Option C75 only.	8483A		P, A
Power Sensor Cable 2 required	11730A		A, P, T
Standards
Frequency Standard	Microsemi 5071A-C002	HP/Agilent 5071A Option 001 Microsemi 5071A-C001 10 MHz External Reference8	A, P
50 MHz, -25 dBm Calibrator	Z5602B Opt H51 for Type-N models Opt H35 for 3.5 mm models Opt H24 for 2.4 mm models	Z5602A Opt H51 for Type-N models Opt H35 for 3.5 mm models Opt H24 for 2.4 mm models	A
Attenuators
10 dB Step Attenuator9, 10	8496G Option 001, H50	8496H Option 001, H50	P
1 dB Step Attenuator9, 10	8494G Option 001, H50	8494H Option 001, H50	P
Attenuator Interconnect Kit Type-N connector kit to connect the 8496G to the 8494G attenuator	11716A		P
Attenuator Driver	11713B	11713A	P
3 dB Fixed Attenuator	8491A Option 003, H3311	8491B Option 003, H3311	P
6 dB Fixed Attenuator	8490D Option 006		A, U
6 dB Fixed Attenuator	8491A Option 006, H3311	8491B Option 006, H3311	P
6 dB Fixed Attenuator 2 required	8493C Option 006		A
10 dB Fixed Attenuator	8491A Option 010, H3311	8491B Option 010, H3311	A, P
10 dB Fixed Attenuator	8493C Option 010		A, P
10 dB Fixed Attenuator, 2.4 mm (f) to 2.4 mm (m) For N9030A/B and N9040B options > 526, and N9010N	8490D Option 010		P
20 dB Fixed Attenuator	8491A Option 020	8491B Option 020	A, P
20 dB Fixed Attenuator For Option EXM only	8493C Option 020		P
30 dB Fixed Attenuator For use with low-power power sensors	11708A		A,P
30 dB Fixed Attenuator, V-Band, waveguide For N9041B	Sage Millimeter STA-30-15-F2		P
20 dB Fixed Attenuator, W-Band, waveguide For N9041B	Sage Millimeter STA-20-10-F2		P
Terminations
Type-N (m) For Option 503, 508, 513	909A Option 012		P, T
3.5 mm (f) For Option 526	909D		P, T
2.4 mm (f) For options > 526	85138B	901D	A, P, T
BNC (m)	1250-0207	11593A	A, P, T
Miscellaneous Devices
RF Power Splitter, Type-N (f) connector	11667A		A, P
Microwave Power Splitter, 3.5 mm (f) connector	11667B		A, P
Millimeter Power Splitter, 2.4 mm (f) connector For Options > 526	11667C		A, P
Directional Bridge, Type-N (f) connector	86205A		P
Directional Coupler, SMA (f) connector	87300C		P
Millimeter Directional Coupler, 2.4 mm (f) connector For N9020B, N9030A/B, and and N9040B options > 526, and N9010N	87301C		P
Microwave Power Divider, 3.5 mm(f) connector	11636B		A, P
Hybrid Power Divider, 3.5 mm (f) connector	87302C		A
Comb Generator Required for IF Phase Linearity adjustment and utility on the N9040B.	U9391G Option FFM		A, U
DC Power Supply Required for IF Phase Linearity adjustment and utility on the N9040B.	U8001A		A, U
mmWave Signal Generator Frequency Extender, 50 to 75 GHz For N9041B	E8257DV15		P
mmWave Signal Generator Frequency Extender, 75 to 110 GHz For N9041B	E8257DV10		P
Minimum Loss Pad (50 Ω to 75 Ω), Type-N (f) to Type-N (m) connector For CXA Option C75 only	11852B Option 401		A, P
ECal module, 2.4 mm, 50 GHz	N4693D Option M0F	N4693A Option M0F (N4693-60001) N4693-61001	U
Cables
3.5 mm (m) to 3.5 mm (m) coaxial cable 2 required For Options ≤ 526	11500E	8120-4921	A, P
3.5 mm (m) to 3.5 mm (m) coaxial cable	11500F		A, P
2.4 mm (f) to 2.4 mm (m) cable For Options > 526	8120-6164		A, P
2.4 mm (f) to 2.4 mm (m) cable For Options > 526	8121-2065 (or equivalent)		A, P
1 mm (f) to 1 mm (m) cable For N9041B	11500J		P
Type-N, Precision Type-N (m) both ends 2 required	11500C	11500B For CXA Option C75 only	A, P, T
Type-N, Precision Type-N (m) both ends For CXA only	N6314A		A
BNC, 50 Ω Coax BNC (m) both ends 3 required	8120-1840	8120-2582 10503A	A, P, T
Cable Assembly, banana plugs Required for IF Phase Linearity Adjustment.	U9391-20013		A, U
Filters
50 MHz Low Pass, BNC (m) to BNC (f) Not required for EXA	Telonic Berkeley TLA 50-5AB2	0955-0306	P, T
300 MHz Low Pass, BNC (m) to BNC (f) 2 required	Telonic Berkeley TLP 300-4AB4	0955-0455	P
1.8 GHz Low Pass, SMA (f) to SMA (f) 2 required	RLC L-1636	0955-0491	P
5.0 GHz Low Pass, SMA (f) to SMA (f)	RLC F-30-5000-RF		P
8.0 GHz Low Pass, SMA (f) to SMA (f)	RLC F-30-8000-RF		P
12.4 GHz Low Pass, SMA (f) to SMA (f)	RLC F-30-12.4-RF		P
1 GHz Notch Filter Not required if using the Wenzel source in the Phase Noise test.	Trilithic CFN-2-1000.1		P
Adapters
Type-N (f) to Type-N (f)	1250-1472		P
Type-N (m) to Type-N (m)	1250-1475		P
Type-N (m) (50 Ω) to Type-N (f) (75 Ω) For CXA Option C75 only	1250-0597		A, P
Type-N (f) (75 Ω) to Type-N (f) (75 Ω) For CXA Option C75 only	Huber + Suhner 31_N-75-0-2 /133_NE (Item no. 22542612)		A, P
Type-N (f) to BNC (m)	1250-1477		P, T
Type-N (m) to BNC (m)	1250-1473		P, T
Type-N (m) to BNC (f)	1250-1476		P
Type-N (m) to 3.5 mm (m)	1250-1743
Type-N (m) to 3.5 mm (f) 2 required	1250-1744
Type-N (f) to 3.5 mm (f) For 3.5 mm source	1250-1745
Type-N (f) to 3.5 mm (m)	1250-1750
3.5 mm (f) to 3.5mm (f) For 3.5 mm source	83059B	1250-1749	P
3.5 mm (m) to 3.5 mm (m) 2 required	83059A	1250-1748	P
3.5 mm (m) to 3.5 mm (f)	83059C		P
3.5 mm (f) to 2.4 mm (f) For 2.4 mm source	11901B
2.4 mm (f) to 2.4 mm (f) For Options 543, 544, or 550	11900B		P
2.4 mm (f) to 3.5 mm (m)	11901D		A, P
2.4 mm (m) to 3.5 mm (f)	11901C		A
Type-N (f) to 2.4 mm (f) For 2.4 mm source	11903B		A, P
Type-N (f) to 2.4 mm (m) For N9041B	11903C		P
Type-N (m) to 2.4 mm (f) For 2.4 mm source	11903D		P
2.4 mm (f) to 2.92 mm (f) For N9010N	11904B		P, A
2.4 mm (m) to 2.92 mm (f) For N9010N	11904C		P, A
2.4 mm (m) Aeroflex Weinschel Crown For N9010N	7005A-13		P, A
1 mm ruggedized (f) to 2.4 mm (f) adapter For N9041B	5067-6655		P
W-Band Waveguide to 1 mm adapter For N9041B	Sage Millimeter SWC-101F-E1		P
V-Band Waveguide to 1 mm adapter For N9041B	Sage Millimeter SWC-151F-E1		P
BNC (m) to SMA (f)	1250-1700		P
BNC Tee (BNC f,m,f)	1250-0781		A, P
BNC (f) to SMA (m)	1250-1200		A, P
BNC (f) to Dual Banana	1251-2277		A, P
1 mm (f) to 2.4 mm (f) adapter For N9041B Used with the U8489A 1.0 mm power sensor for power sensor calibration	11922B		P
3.5 mm (f) to Type-N (m) For power sensor calibration	08485-60005		A, P
2.4 mm (f) to Type-N (m) For power sensor calibration	08487-60001		A, P
Type-N Tee	1250-0559		P
Optional Equipment
10 MHz Distribution Amplifier Only needed when using the 10 MHz Distribution Amplifier setup	Microsemi 5087B	5087A	A, P

Table Footnotes:

Keysight, Agilent, or Hewlett-Packard model numbers unless otherwise noted.
A = Adjustments, P = Performance Testing, T = Troubleshooting

Supported PSG models:

E8247C (for Options ≤ 526)
E8257C
E8257D
E8267C
E8267D

One PSG with Option 567, 1EA/1EU, 1E1, 007, and [UNX or UNR or UNY] can be used as the Microwave Signal Generator #1, Low Noise Signal Generator, and the RF Signal Generator.
PSG Option 521 is not supported as an alternative model for the X-Series performance verification tests due to its upper and lower frequency limits.

The (obsolete) 836xxA/B/L synthesized generators are only allowed in the following applications:

Mapped As	Performance Verification	Adjustments	Utilities
Signal Generator MW #1	No	Yes	No
Signal Generator MW #2	Yes	Yes	No

N1914A power meters with serial number prefix prior to MY53040007 require Service Note N1914A-07 which fixes a power supply ground loop. The ground loop injects noise into the measurement circuits which can cause unstable measurements at low (-30 dBm) power levels.
The 8482A power sensor uses cal factors to compensate the power sensor for frequency response errors. Cal factors are stated in percentages. The 8482A factory cal factor uncertainty ranges from 2.2% to 3.1%. The cal factor uncertainty can be reduced to < 1.0% by using metrology grade calibration techniques. The power sensor cal factor uncertainty becomes one component of the Verification Test uncertainty analysis. Lower cal factor uncertainties will translate to wider test margins.

The table below shows the various options that will provide USB ports on the N1914A power meter. Note that the N1914B power meter comes standard with USB ports.

Click here for options table.

N1914A Orderable Options		Description	FW responds as option¹
201	Ordered from the factory with new N1914A	Dual channel average power meter with VGA, trigger in/out, 1 front and 1 rear USB port	008, 010, 012
The following options are ordered as upgrades to an existing N1914A power meter.
106	This is the recommended option.	Dual channel average power meter with 1 front and 1 rear USB port	008
103	alternate	Dual channel average power meter, battery, 2 rear USB ports	001, 009
105	alternate	Dual channel average power meter with VGA, battery, 1 front and 1 rear USB port	008, 010
108	alternate	Parallel rear-panel sensor input connectors, front-panel reference calibrator connector, 2 rear USB ports	002, 009
109	alternate	Parallel rear-panel sensor input connectors, rear-panel reference calibrator connector, 2 rear USB ports	003, 009
111	alternate	Dual channel average power meter, battery, 1 front and 1 rear USB port	001, 008
167	alternate	Dual channel average power meter, external trigger in/out, 1 front and 1 rear USB port	008, 012

The firmware will respond with the option numbers as determined by the installed orderable option. TME will look for either USB option 008 or 009.

When using the 10 MHz External Reference (for performance tests), be sure to update the Additional Properties in TME to the correct Frequency Accuracy in parts per million (ppm). For example, if overall accuracy is 9e-12, the equivalent is 9e-6 ppm. Refer to the Additional Properties section in the N7800A TME Help for instructions.
The step attenuators should be permanently joined using the 11716A Interconnect Kit as shown in the diagram.

Step Attenuator Loss Characterization

The step attenuator combination should have each attenuator setting characterized by a metrology lab at 50 MHz. This characterization can be ordered through Keysight Technologies as an Option H50 Calibration.

The following tables show which sections of the 10 dB and 1 dB step attenuators are utilized for each attenuator setting. The tables also list the Recommended Uncertainty for each attenuator setting. A larger number will result in larger overall test uncertainties which could affect the test pass/fail rate.

The interconnect cable should NEVER be disconnected once the loss characterization is performed.

1 dB Step Attenuator

Nominal Attenuation (dB)	Attenuator Section				Recommended Uncertainty (dB)
Nominal Attenuation (dB)	#1 (1 dB)	#2 (2 dB)	#3 (4 dB)	#4 (4 dB)	Recommended Uncertainty (dB)
0	Off	Off	Off	Off	0 (Reference)
1	On	Off	Off	Off	< 0.005
2	Off	On	Off	Off	< 0.005
3	On	On	Off	Off	< 0.005
4	Off	Off	Ona	Off	< 0.005
5	On	Off	On	Off	< 0.005
6	Off	On	On	Off	< 0.005
7	On	On	On	Off	< 0.005
8	Off	Off	On	On	< 0.005
9	On	Off	On	On	< 0.005
aTME requires that Section 3 be characterized.

10 dB Step Attenuator

Nominal Attenuation (dB)	Attenuator Section				Recommended Uncertainty (dB)
Nominal Attenuation (dB)	#1 (10 dB)	#2 (20 dB)	#3 (40 dB)	#4 (40 dB)	Recommended Uncertainty (dB)
0	Off	Off	Off	Off	0 (Reference)
10	On	Off	Off	Off	< 0.010
20	Off	On	Off	Off	< 0.015
30	On	On	Off	Off	< 0.020
40	Off	Off	Ona	Off	< 0.025
50	On	Off	On	Off	< 0.030
60	Off	On	On	Off	< 0.035
70	On	On	On	Off	< 0.040
aTME requires that Section 3 be characterized.

8491A Option H33 is a fixed attenuator which has been characterized to have a VSWR ≤ 1.05:1 at 50 MHz. A VSWR of 1.05:1 is recommended to test Input Attenuator Switching Uncertainty, Display Scale Fidelity, and Absolute Amplitude Accuracy performance tests. Any 8491A/B attenuator can be mapped into this device if the VSWR at 50 MHz has been characterized to be ≤ 1.05:1. When mapping the attenuator to indicate that it meets the required specification, the Option H33 checkbox will need to be checked in the configure test station Administration screen.

Guidelines for Ordering Power-Sensor Calibration Service

Use the following guidelines to ensure power sensors used by the N7800A application receive the correct calibration service:

Order Option 1A7 when ordering new power sensors that will be used as working standards in N7800A TME calibrations.
When ordering periodic calibration for instruments used as lab standards in the N7800A software, we recommend using “Keysight Cal + Uncertainties + Guardbanding”. More information can be found at http://www.keysight.com/find/americas_cal.
The N7800A software incorporates the ISO GUM Uncertainty in point-to-point uncertainty calculations. The special “H-series” calibration options (shown on the Special Calibrations Matrix located at http://cal.software.keysight.com) provide lower measurement uncertainties through use of direct comparison to devices directly characterized by NPL or NIST (or another NMI). The overall resulting N7800A measurement uncertainties then reflects these lower device uncertainties. The equipment requirements of each N7800A calibration application are summarized in the Special Calibrations Matrix which can be found at http://cal.software.keysight.com.

Option H99 is a special option for the Roseville Service Center [only] which provides electronic calibration data available as a .csv file that can be imported into TME thus avoiding manual entry. Option H99 must be requested from the Roseville Service Center upon re-calibration only of any previously purchased power sensor and not for new purchases of power sensors. This option may be ordered in addition to any other required or requested Std Lab Calibration option. Option H99 is recommended but not required.

The following models are not supported by Option H99:

E9304A-H18, H19, H84
E9300A-H25
N8386A
N8486AQ

Calibration Data Validation

Standard Checks

To ensure data integrity for measurements carried out with TME (Test Management Environment), the following verification checks are carried out at the beginning of each test run. The checks are only performed on devices that require calibration data which directly affect the test results.

The following table lists the standard checks performed by default:

Failure to comply with the CalFactor(%) or Atten(dB) will result in test data being labeled Invalid in both the TME interface and in any report format produced from the data.

Device	Parameter Name and Description	Limits	A Failure Affects:
Noise Source	NoiseRatio(dB) The extended noise ratio, in dB	Must be > 0 and ≤ 30 at all points	All test runs
Power Sensor	CalFactor(%) The calibration factor, as a percentage	Must be ≥ 10% and ≤ 150% at all points. Must not be 100% (the default) at all points.	All test runs
	Uncertainty(%) The uncertainty of the calibration factor, as a percentage	Must be > 0 and ≤ 10% at all points	Test runs guard banded by measurement uncertainty only
	ReflectCoeff(Mag) The magnitude of the reflection coefficient	Must be > 0 and < 0.5 at all points	Test runs guard banded by measurement uncertainty only
Power Sensor (Wide Band)	LowBandCalFactor(%) The calibration factor, as a percentage, for the low band	Same tests as for CalFactor(%) on a one-range power sensor	All test runs
	HighBandCalFactor(%) The calibration factor, as a percentage, for the high band	Same tests as for LowBandCalFactor(%)	All test runs
	LowBandUncertainty(%) The uncertainty of the calibration factor, as a percentage, for the low band	Same tests as for Uncertainty(%) on a one-range power sensor	Test runs guard banded by measurement uncertainty only
	HighBandUncertainty(%) The uncertainty of the calibration factor, as a percentage, for the high band	Same tests as for LowBandUncertainty(%)	Test runs guard banded by measurement uncertainty only
	ReflectCoeff(Mag) The magnitude of the reflection coefficient	Same tests as for ReflectCoeff(Mag) on a one-range power sensor	Test runs guard banded by measurement uncertainty only
Step Attenuator	Atten(dB) The attenuation, in dB	Must be within 1 dB of the nominal attenuation. Must not all be exactly equal to the nominal attenuation (the default) at all points except zero, zero step is the reference and must be zero	All test runs
	Uncert(dB) The uncertainty of the attenuation, in dB	Must be > 0 and ≤ 0.1 dB at all points except zero. Zero step is the reference and must be zero.	Test runs guard banded by measurement uncertainty only
	ReflSize The reflection coefficient magnitude	Must be > 0 and < 0.5 at all points	Test runs guard banded by measurement uncertainty only