Dynamic Accuracy — 1.195 GHz

This topic page applies to the E5071C and E5072A using the Normal Variant test plan.

This test checks the dynamic accuracy of the ENA. The dynamic accuracy is tested at 1.195 GHz for each receiver port using the Keysight Z5623A (with Option H01) dynamic accuracy test set. The 1.195 GHz source signal of the ENA goes through the test set's first attenuator variable from 0 dB to 11 dB in 1 dB steps and second attenuator variable up to 50 dB for E5071C, and up to 90 dB for E5072A; it is measured with the receiver port.

The test procedure checks the measured receiver-input power for each 5 dB increment in the range from –60 dBm to 0 dBm for E5071C, and from –100 dBm to 0 dBm for E5072A. The ratios of the measured receiver-input powers to the reference input level of –10 dBm are calculated and compared to the attenuation values of the test set. The 1.195 GHz signal flow is split with a power splitter present between the two attenuators in the test set and measured with an external power meter to calibrate the attenuated power level.

For E5071C, the following footnote will be added to the measurement report to explain why the test does not test points below –60 dBm:

Dynamic Accuracy of a receiver consists of three regions: Compression, Linear, and Noise & Crosstalk. Measurements below –60 dBm are simply measuring noise variability in the Noise & Crosstalk region rather than the true linearity of the receiver! Since the receiver is linear by design at these lower levels, there is no need to measure linearity below this threshold. Making measurements above this threshold and below the compression region are sufficient to warrant linearity performance of a receiver.

Required Test Equipment

Test Equipment (DSG)1	Recommended Model Number2	E5071C > 8.5 GHz	E5071C ≤ 8.5 GHz E5072A
Power meter (PowerMeter 1)	N1914A	X	X
Power sensor 2 (PowerSensor RF 2)	N8482A	X	X
Dynamic accuracy test set (DynamicAccuracyTestSet 1)	Z5623A Option H01	X	X
Cable, Type-N (m) to Type-N (m) 2 required	8120-8862		X
Cable, 3.5 mm (m) to 3.5 mm (m) 2 required	8121-1834	X
6 dB fixed attenuator (Attenuator Fixed 6dB 1)	8491A Option 006	X	X
Low pass filter (Filter LowPass 2.0GHz 1)	Telonic TLP 2000-5E4F	X
Adapter, Type-N (m) to 3.5 mm (f) 2 required	1250-2879	X
Adapter, 3.5 mm (f) to 3.5 mm (f) 2 required	85027-60005	X

The DSG (Device Substitution Group) is listed below the equipment description, if applicable. These devices are required to be mapped in TME to execute a test. DSGs require either GPIB communication or are important for dynamic measurement uncertainty calculations. N/A refers to required equipment that is not mapped as DSGs in TME.
Refer to the main Required Test Equipment for a list of alternative models.