36 | Keysight | FieldFox Handheld Analyzers 4/6.5/9/14/18/26.5/32/44/50 GHz - Data Sheet
Extended Range Transmission Analysis (ERTA) (continued)
Frequency specifications
The ERTA frequency range is limited by each individual analyzer’s frequency range.
Models
Reflection measurements
30 kHz to 4 GHz
Receiver frequency range1
100 kHz to 4 GHz
N991xA, N993xA
N9913A
N9914A
30 kHz to 6.5 GHz
30 kHz to 9 GHz
100 kHz to 6.5 GHz
100 kHz to 9 GHz
N9915A, N9935A
N9916A, N9936A
N9917A, N9937A
N9918A, N9938A
N9950A, N9960A
N9951A, N9961A
N9952A, N9962A
30 kHz to 14 GHz
30 kHz to 18 GHz
30 kHz to 26.5 GHz
300 kHz to 32 GHz
300 kHz to 44 GHz
300 kHz to 50 GHz
100 kHz to 14 GHz
100 kHz to 18 GHz
100 kHz to 26.5 GHz
300 kHz to 32 GHz
300 kHz to 44 GHz
300 kHz to 50 GHz
N995xA, N996xA
1. The receiver (spectrum analyzer) is usable to 5 kHz, though only specified to 100 kHz or 300 kHz.
Frequency reference
Refer to the frequency accuracy specifications on page 21.
Source output power
Refer to the test port output power typical data on page 5.
Frequency setup parameters
Receiver frequency
Center/span or start/stop (standard spectrum analyzer settings)
Reverse receiver sweep direction (default direction is forward, but can be set to reverse)
Source frequency [Remote]
[Tracking] – FieldFox source tracks the receiver by default. The frequencies are identical.
[CW] – FieldFox’s source can be set to a CW frequency independent of FieldFox’s receiver frequency. FieldFox’s
source is at a single CW frequency; FieldFox’s receiver is swept.
[Coupled CW] – FieldFox’s source CW frequency is auto-coupled to FieldFox’s receiver [Center Frequency] setting.
Frequency-offset capability
This feature allows the FieldFox’s source frequency to be offset from FieldFox’s receiver frequency. The offset frequency can be negative, zero, or positive.
The frequency-offset capability is useful when characterizing the scalar transmission response of devices such as mixers and converters.
Frequency-offset setup parameters
Receiver frequency
Center/span or start/stop (standard spectrum analyzer settings)
Reverse receiver sweep direction (default direction is forward, but can be set to reverse)
Frequency tracking offset
Receiver sweep direction
On/Off
Offset values: 0, > 0, < 0
Reversal: Off
Default setting
Both source and receiver sweep in the forward direction. Receiver stop frequency > Receiver start frequency
Source frequency = Offset + Receiver frequency
Reversal: On
Source and receiver sweep in opposite directions.
Source frequency = Offset − Receiver frequency
Offset > receiver frequency
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