21 | Keysight | FieldFox Handheld Analyzers 4/6.5/9/14/18/26.5/32/44/50 GHz - Data Sheet
Spectrum Analyzer (continued)
Frequency and time specifications (continued)
Frequency reference, -10 to 55 °C
Accuracy
± 0.7 ppm (spec) + aging
± 0.4 ppm (typical) + aging
Accuracy, when locked to GPS
Accuracy, when GPS antenna is disconnected
Aging Rate
± 0.010 ppm (spec)
± 0.2 ppm (nominal) 1
± 1 ppm/yr for 20 years (spec), will not exceed ± 3.5 ppm
Frequency readout accuracy (start, stop, center, marker)
± (readout frequency x frequency reference
Horizontal resolution = frequency span / (trace
points – 1) RBW centering:
– 5% x RBW, FFT mode (nominal)
– 16% x RBW, step mode (nominal)
accuracy + RBW centering + 0.5 x horizontal
resolution
Marker frequency counter
Accuracy
± (marker frequency x frequency reference accuracy + counter resolution)
Resolution
1 Hz
Frequency Span
Range
Spec
0 Hz (zero span), 10 Hz to maximum frequency range of instrument
1 Hz
Resolution
Accuracy
± (2 x RBW centering + horizontal resolution) ± (2 x RBW centering + horizontal resolution) for
detector = Normal
Sweep acquisition, span > 0 Hz
Spec
Range
1 to 5000. Number of data acquisitions per measurement. Value is normalized to the minimum
required to achieve amplitude accuracy with CW signals.
Auto coupled. For pulsed RF signals manually increase the sweep acquisition value to maximize the
pulse spectrum envelope.
Resolution
1
Sweep time readout
Measured value of the time required to complete a sweep from start to finish, including time to tune
receiver, acquire data, and process trace.
Trace update
N991xA, N993xA
6.7 updates per second2
15.4 updates per second3
N991xA, N993xA5
70 ms
N995xA, N996xA
8 updates per second
19 updates per second
N995xA, N996xA
69 ms
Span = 20 MHz, RBW, VBW = 3 kHz
Span = 100 MHz, RBW, VBW autocoupled
Center frequency tune and transfer4
101 points, zero span
101 points, 1 MHz span
72 ms
72 ms
1. The maximum drift expected in the frequency reference applicable when the ambient temperature changes ± 5 °C from the temperature when the GPS
signal was last connected.
2. 1.2 updates per second; applicable for FieldFox with serial number prefix < than MY5607/SG5607/US5607 and FieldFox not upgraded with Option
N9910HU-100/200/300.
3. 4.1 updates per second; applicable for FieldFox with serial number prefix < than MY5607/SG5607/US5607 and FieldFox not upgraded with Option
N9910HU-100/200/300.
4. Within full frequency range of instrument, not band dependent
5. Only for serial number prefix starting with MY5607/SG5607/US5607 and FieldFox upgraded with Option N9910HU-100/200/300/400.
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