13 | Keysight | N6841A RF Sensor for Signal Monitoring Networks - Data Sheet
Technical Specifications and Operating Characteristics
All performance data is 80%/80% typical at room temperature unless otherwise indicated.
Frequency
Frequency range
20 MHz to 6 GHz
Frequency reference accuracy
Frequency tuning resolution
Frequency Span
± 20 ppb (with GPS or IEEE1588/GPS Grandmaster)
0.01 Hz
Adjustable from 5 Hz to maximum frequency range
20 MHz (Digital only)
Max IF bandwidth
Tuner settling time
Sweep Speed
< 5 ms
> 4 GHz/sec with 10 kHz RBW
Phase noise @ 1 GHz
10 kHz offset:
100 kHz offset:
–82 dBc/Hz
–98 dBc/Hz
Pre-selection filters
7 bands: 20-1800 (preamp off), 750-1800 (preamp on), 1800-2700, 2700-3250, 3250-4150, 4150-5050,
5050-6000 MHz
Resolution Bandwidth (RBW)
Selectivity
Range
Adjustable Shape factor: 2.6, 4.0 and 9.0 to 1 (with N6820ES Surveyor 4D software)
Using N6820ES software and shape factor 9.0: 5 Hz, 10 Hz, 40 Hz, 90 Hz, 170 Hz,
330 Hz, 650 Hz, 1.29 kHz, 2.57 kHz, 5.13 kHz, 10.26 kHz, 20.51 kHz, 41.01 kHz,
82.04 kHz, 164.07 kHz, 328.13 kHz, 656.25 kHz
Using SAL API: 5 Hz to 1.67 MHz
Zero Span/Time Domain
N6841A offers Digital IF. I/Q recordings can be made with bandwidths and durations as indicated below.
I/Q recording
Signal Bandwidth
21.9 MHz
4.8
10.9 MHz
9.6
5.5 MHz
19.2
2.7 MHz
38.4
I-Q Recording Time (seconds)
For bandwidths below 2 MHz, streaming to disk is an effective way to record I/Q data provided the con-
nection from the sensor to the computer is full 100 Base T. This is achieved with Surveyor 4D NarrowBand
Recorder (in version 4.1.0 or later) or via SAL programming.
Time Domain Display modes
Amplitude, Phase, Frequency, I and Q versus Time, Constellation diagrams and Vector Demodulation
modes (using 89601B Vector Signal Analysis software)
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