16 | Keysight | N6841A RF Sensor for Signal Monitoring Networks - Data Sheet
Technical Specifications and Operating Characteristics
Signal processing
Usable information bandwidth
Data types
20 MHz
I/Q time series
FFT spectrum
16 or 32 bit resolution
Up to 16k points, 50% overlapped
Data transfer modes
I/Q and FFT (simultaneous) Streaming or Block mode
Data streaming rates (Gapless) on 100BT
network
I/Q time series
FFT spectrum
Up to 2 MHz signal bandwidth
Full 20 MHz FFT spectrum
Signal LOOKBack capture memory
512 MBytes (This provides 4.8 seconds of 20 MHz wide IQ time series capture or lookback)
LOOKBack refers to the ability to stream wideband I/Q data into the First In First Out (FIFO) memory located in the RF Sensor. When short duration
bursts occur, LOOKBack enables the user to detect and locate these short bursts.
Tune and listen (in signal surveyor)
Audio demodulation types
Audio output
AM, FM
Streams gap-free Stereo, Left and/or Right channel
Adjustable from 6 kHz to 200 KHz
–135 to –20 dBm
Receiver bandwidth
Squelch range
Audio recording length
Audio filtering
Streams to disk, limited by file or drive size.
High and Low Pass Filters available for voice enhancement
Digital Downconverters (DDC's)
The standard N6841A has one DDC with a dynamic bandwidth ranging up to 20MHz. This DDC is used by the Surveyor 4D application
for audio streaming, IQ recording, modulation recognition or geolocation functions.
When the N6841A-MFP option is purchased, it enables a new FPGA image that has up to 8 DDC's each with bandwidth up to 200kHz.
The DDC bandwidth can be adjusted globally but is fixed across all eight channels and can be used for narrowband signal processing
by the Surveyor 4D application or via the SAL programming interface.
Sensor management and software
Sensor host PC
Operating System
CPU
RAM
Win7 (32/64 bit), Win8
> 2 GHz, minimum 2 processors
> 4 GB
Hard Drive
> 300 GB
RF Sensor health & status monitor
RF Sensor diagnostics
Hardware watchdog checks in once per minute
Remote controlled self-test
RF Sensor data security
Included applications
RAM memory cleared at power-off or reboot
Sensor Management
AM/FM audio streaming*
Spectrum Viewer
Emitter Geolocation (with N6854A software)
*AM/FM Audio streaming provided with the RF Sensor software offers AM, FM and FM-W demodulation
and requires only 0.2% of a 100Mbps link to stream FM-W audio back from the RF Sensor. Spectrum
Viewer requires about .5% of a 100Mbps link to bring a gap free 20 MHz spectrum into view.
Networking interface
10/100 Ethernet TCP
Auto / DHCP / Static
Networking IP address type
Network configuration options
Sensor Alias
IP address
Host Name
Subnet Mask
Gateway IP
DNS1, DNS2
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