Configuration Guides
System Elements
There are five elements to consider as you configure the emitter location system:
Step 1. Configure sensors and antenna
Select the number and configuration of your N6841A RF Sensors
The required number of RF sensors depends on the following:
To assist with estimating the number of sensors needed to cover an area, Keysight includes the Sensor Placement and Optimization Tool (SPOT) software with the RF Sensor Management Tool (SMT) software. The SPOT software uses a calibrated map image and propagation models to estimate the RF detection range of monitoring locations and the geolocation coverage area of a network of RF sensors. Work with your local Application Engineer to help determine the right number of RF sensors for your need. Many start-up applications begin with five RF sensors. A five-sensor network enables a mixture of fixed, temporary, and mobile sensors.
N6841A configuration required to make geolocation measurements
N6850A Broadband omnidirectional antenna
The Keysight N6850A Broadband Omni Antenna is a passive, omnidirectional antenna designed for use with receivers that operate up to 6 GHz. With this antenna, you can minimize installation complexity by mounting only one very compact antenna. Its low-profile design makes it ideal for inconspicuous spectrum monitoring applications. Its uniform gain pattern makes it ideal for the time difference of arrival or received signal strength geolocation techniques. It includes a 5-foot Type-N RF cable and mounting bracket.
For more information, refer to the N6850A Broadband Omni Antenna data sheet (5992-1237EN).
Step 2. Configure software
N6854A Geolocation Server software
The Keysight Geolocation Server software is an easy-to-use application for manual geolocation measurements initiated by a Time or RF power trigger. The software is downloadable from www.keysight.com/find/N6854A and requires a license. When you order the N6854A software, the license file can be retrieved from the Keysight Software Manager webpage.
The N6854A provides a perpetual node-locked license to run the Geolocation Server Software with Time Difference of Arrival (TDOA), Received Signal Strength (RSS), and Hybrid (adaptive TDOA plus RSS) geolocation algorithms.
If your organization already owns N6841A RF sensors and you wish to add geolocation capability, you can order the N6854A Geolocation Server software plus the number of N6841A-GFP options needed for the sensors in your network.
For more information, refer to the “N6854A RF Geolocation Server Software” technical overview (5989-9207EN).
Configure the Surveyor 4D Software
Surveyor 4D is a full-featured spectrum monitoring software capable of automating emitter location measurements. It can also task internal and external processes to capture and analyze spectrum events and conduct comprehensive surveys of the RF environment. The core software includes features to make manual and automated geolocation measurements, log, and display the results.
You can configure the Surveyor 4D software by selecting the core software and any additional features for your specific application.
• N6820114E (Required) supplies the core Surveyor 4D software.
• N6820USDE supplies the Universal Signal Detector.
• N6820MR1E supplies Modulation Recognition.
• N6820NBRE supplies the streaming narrowband recording feature
• N6820EDFE supplies a GUI, features, and filters for operation with external narrowband Direction-Finding Systems (programming is required).
• N6820SSYE supplies a Client-Server application, GUI, and utilities to perform synchronous sweeping of multiple RF Sensors (programming is required).
• N6820VRXE supplies a virtual receiver player and data endpoints that enable Surveyor 4D to process wideband IQ recordings.
• N6820UTPE provides an automated V/UHF voice activity detector [ITAR controlled – requires export license].
• N6820ES-
Configure the PathWave Vector Signal Analysis 89601200C software
The VSA software is a widely used program capable of controlling many Keysight products including the N6841A RF sensor. The software is not required for geolocation measurements but can be used for post-analysis of IQ files made while using Surveyor 4D software. For more information, please refer to www.keysight.com/find/VSA
Typical VSA features used with the RF Sensor include:
• 89601200C supplies the core VSA software
• 89601AYAC supplies flexible demodulation analysis
• Add other specific wireless formats as needed
Application software licensing options
Flexible licensing options allow you to balance your project’s requirements. Your application software may require consistent software operation over a full program lifecycle or may require frequent updates to maintain pace with fast-moving leading-edge applications. Keysight licensing has flexible license terms and types to address your application needs. KeysightCare provides selectable software support as well.
Confidently covered by Keysight Services
Prevent delays caused by technical questions, or system downtime due to instrument maintenance and repairs with Keysight Services. Keysight Services are here to support your test needs with expert technical support, instrument repair and calibration, software support, training, alternative acquisition program options, and more.
A KeysightCare agreement provides dedicated, proactive support through a single point of contact for instruments, software, and solutions. KeysightCare covers an extensive group of instruments, application software, and solutions and ensures optimal uptime, faster response, faster access to experts, and faster resolution.
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