N7874A Required Test Equipment

There are specific configuration requirements for a TME test station running the N7874A calibration software. Refer to the TME Test Station Configuration Requirements in the Getting Started topic.

This section lists the test equipment needed to run performance tests. Models for each test equipment category are given in order of preference. Alternate models are also listed but should be considered a lower priority. All equipment is Keysight, Agilent, or Hewlett Packard unless otherwise specified. Refer to each individual test for specific setup configurations. The computer and all test equipment are connected to the device under test (DUT) using GPIB and PXI.

Required Test Equipment

Test Equipment	Recommended Model	Alternate Model
PNA network analyzer	N5245B	N5247B N5222A N5224A N5225A N5242A N5244A N5245A/AS N5247A/AS E8363C E8364C
Power meter	N1914A¹	N1912A E4419A/B
Power sensor (See below for calibration service ordering guidelines.)	N8485A	None
Frequency counter	53230A Option 115	53131A 53132A Options 010 or 012, and 124 53181A Options 010 and 124
Frequency reference²	Frequency counter internal	House standard
Dynamic accuracy test set	U3020BD01	U3020A-D01
Compression test set	U3070BK01	U3070A-K01
10 dB fixed attenuator (2 required)	8493C Option 010	None
Load, 50 Ω, 3.5 mm (may come from CalKit)	909D Option 301	909D Option 040 902D
Calibration kit, 3.5 mm	85052B (only the loads are used)	85052D
ECal module, 3.5 mm	N4691D³ Option M0F	N4691-60004 N4691-60008
PXIe chassis (for M937xA PXIe models only)	M9018B	M9018A
Embedded controller⁴ (for M937xA PXIe models only)	M9037A
Cables
RF 3.5 mm (m) to 3.5 mm (f) (3 required)	8121-2111
Adapters
3.5 mm (f) to 3.5 mm (f)	83059B	1250-1749
3.5 mm (m) to 2.4 mm (m) (2 required)	11904A
3.5 mm (m) to Type-N (m)	1250-1743
BNC (m) to Type-N (f)	1250-1477
3.5 mm (m) to 3.5 mm (m) (2 required)	83059A	1250-1748

N1914A power meters with serial number 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 frequency reference is optional. It may be a 10 MHz "house standard", or it may be the internal frequency reference time-base of the counter used for the frequency measurement. See the Frequency Reference Explanation section in the Frequency Accuracy test for details.

D-Model ECals have minimum firmware requirements for the DUT and network analyzer ETE. Refer to the list below for specific requirements.

DUT models	Minimum Firmware Required
M937xA PXIe VNA	A.12.60.0x
P937xA USB VNA	A.13.10.08
PNA ETE models	Minimum Firmware Required
N5222A/24A/25A N5242A/44A/45A/45AS/47A/47AS	A.10.60.04
N5245B/47B	A.12.85.00
E8363C/64C	Does not support D-model ECals

Not required if using a remote controller.

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.
Order the Keysight Cal + Measurement Uncertainty + GB calibration service for power sensor recalibration.
When ordering periodic calibration for instruments used as lab standards in the N7800A software, we recommend using “Keysight calibration + uncertainties” for power sensors, and “Keysight calibration + uncertainties + guardbanding” for all other items (please visit Selecting the Right Calibration Services). The N7800A software incorporates the ISO GUM Uncertainty in point-to-point uncertainty calculations. The special “H-series” calibration options in this table provide lower measurement uncertainties through use of direct comparison to devices directly characterized by NPL or NIST (or another NMI). Please order Option H99 to get electronic data for easy import into the N7800A (avoids manual entry). The overall resulting N7800A measurement uncertainties then reflects these lower device uncertainties. The equipment requirements of each N7800A calibration application are summarized in the specials calibration matrix which can be found at the Recommended Lab Standards and Special Cal Options website.

The Keysight Option H99 is a special option for the Roseville Service Center [only] which provides electronic calibration data available as a .csv file in TME N7800A format for all power sensors used with the N7800A TME application. N7800A TME is SSU calibration software used across Keysight SSU and by many self-maintainers. H99 must be requested from the Roseville SSU upon re-calibration only of any previously purchased power sensor and not for new purchases of BID Power Sensors. This option may be ordered in addition to any other required or requested Std Lab Calibration option (must also be ordered in addition to H99). Option H99 is recommended but not required.

The following models are not supported by Option H99:

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