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Delta X 2000/6 Real-Time Spectrum Analyzer 40KHz-6000 MHz Counter Surveillance Sweeping System

Delta X 2000/6 Real-Time Spectrum Analyzer 40KHz-6000 MHz Counter Surveillance Sweeping System
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SKU: KB-DX2000-6
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Delta X 2000/6 Real-Time Spectrum Analyzer 40KHz-6000 MHz Counter Surveillance Sweeping System



  • High update rate, 2000-3000 MHz per second
  • Frequency range 40 kHz – 6000 MHz
  • Detected signal’s existence time: 2-3 seconds
  • Instantly detects digital signals with short bursts
  • Can detect and locate the transmitter simultaneously
  • Quickly and reliably detects all kinds of RF listening devices, including analog, digital, constantly existing and intermittent, sending audio or video, with or without encryption
  • Finds hidden surveillance devices employing the digital standards GSM, 3G, 4G/LTE, Bluetooth, Wi-Fi, DECT, etc.
  • Detects illegal information transmission in AC, telephone, Ethernet, alarm and other wires as well as in the infrared range
  • Can work in instant detection mode, guarding mode, locating and the car tracker detection
  • Has 20-50 times higher sensitivity comparing to conventional RF detectors
  • Can monitor the RF environment 24 hours a day with data logging
  • Capable of detecting covert bugging devices with accumulation function and transmitters hidden within the spectrums of other signals
  • Supports storage of an unlimited quantity of signals. Full information is stored in the log and can be reviewed during the detection or later. Multiple logs are supported
  • Demodulation of audio in FM, AM, USB, LSB, CW (adjustable BW 3…240 kHz)
  • Powered from the laptop’s USB


Form-factor: portable system under control of laptop
  • High capacity of laptop’s hard disk enables full data logging during the detection (24/7 possible)
  • Wider screen is more convenient for analysis
  • Compatible with touch screen laptops
  • The handheld use of antenna is more convenient for locating the transmitter in the hard to access places
Handling of the mobile and wireless bands GSM, CDMA, 3G, 4G/LTE, DECT, Wi-Fi, Bluetooth, etc.
  • Mobile/wireless signals are detected with the use of individual thresholds and displayed separately from the other signals
  • Activities within each band are stored as one signal with a certain danger level to avoid excessive records in the Signals table and to locate the sources with the hopping frequency
  • Additional sweepings on the ‘short-burst’ bands are performed to increase probability of intercept for such signals as GSM, 3G, 4G, DECT, Wi-Fi, Bluetooth, etc.
  • The mobile and wireless signals are detected simultaneously with the analog transmissions
  • External interferences from the neighbor mobile phones and Wi-Fi routers can be rejected with the help of the thresholds
  • The supplied data files allow the operator to adjust the system to the mobile/wireless bands employed in the country of use
Support of the 'Known signals' table
  • The operator can easily distinguish between the safe and dangerous signals
  • The TV frequencies employed in the country of use can be quickly imported from the supplied data files
  • The FM, VHF/UHF police and municipal channels can be collected and stored for the further use
Advanced signal recognition method
  • The signals are automatically recognized in the spectrum traces and inserted or updated in the Signals table
  • Both the analogue and digital signals are captures with assigning the corresponding Danger level
Unique algorithm of measuring the signal’s Danger level
  • Uses combination of the reference trace and individual thresholds for mobile/wireless bands
  • Takes into consideration both the signal’s strength and bandwidth
  • Works for both analogue and digital signals including the transmissions with changing frequency
  • Is used during the locating procedure and provides more reliable results comparing to the traditional ‘signal strength’ method
Low demands to the operator’s knowledge level
  • The system can be prepared for the detection with the help of the ‘Update Masks’ procedure within a few minutes
  • Manual handing of spectrum traces is not needed
  • Everything is made automatically after the detection starts
  • The operator is warned by the audio alarm when a dangerous signal is detected
Data logging
  • All the spectrum traces and alarms are logged during the detection
  • The situation at any given time can be reviewed and studied
  • The 24 hours per day logging provides detection of periodically working, remotely controlled bugging devices
Tracking of the signal’s activity
  • The full history of each separate signal or of all signals simultaneously is displayed on the Alarms graph
  • The events at any given time can be reviewed by simple clicking on the graph
  • The operator can see the duration of activity and such to distinguish between the interferences and real danger
The Waterfall and Persistence graphs
  • Both the present and previous measurements at any given time can be displayed
  • The displayed time interval (density) is selectable in the range from 2 minutes to 6 hours
Car Tracker Detector mode
  • The monitoring of mobile bands can detect the signals from the GPS trackers hidden within a vehicle


  • Update rate: 2000-3000 MHz/sec
  • Frequency range: 40 kHz - 6000 MHz
  • Time of detection (Minimal time of signal’s existence needed for its detection): 2-3 sec
  • Spectrum resolution: 9 kHz
  • Occupied disk space per 24 hours: 12 Gb
  • Temperature Range: 0°C to +65°C
  • Demands on computer: 3rd gen. or newer Intel dual/quad Core i-series; 1 x USB 3.0; 2 x USB 2.0; Windows 7, 8 , 10
  • Displayed dynamic range: -90…-10 dBm
  • Displayed spectrum spans: 0.5, 1, 2, 5, 10, 25, 50, 100, 200, 500, 1000, 2000, 3000, 6000 MHz
  • Spectrum graphs: Spectrogram, Waterfall
  • Spectrogram’s displayed data: Persistence, Live, Max, Threshold
  • Detector’s modes: Wide-Range, Signal
  • Fields of ‘Signals’ table: Frequency, Bandwidth, Name, dbm Level, dbm Peak Level, Danger Level, Peak Danger Level
  • Fields of ‘Bands’ table:Begin, End, Name, Type, Threshold, Priority, Tracker detection
  • Fields of ‘Known Signals’ table: Frequency, BW, Name, Modulation

Functions of the software

  • Rich visual representation: Spectrogram/Persistence, Waterfall, Alarms graph
  • The Known Signals table allows the system to reject TV, FM and other ‘friendly’ signals while maintaining high sensitivity to unknown signals
  • The Detector allows the operator to perform location of a bugging device with both visual and audio notification
  • The Alarm Threshold decreases the false alarm rate
  • The Update Mask procedure allows the operator to quickly adjust the system to the local RF environment on order to reject safe signals
  • Sorting and filtering is supported in the Signals table
  • The Report function allows the operator to export all obtained information about the desired signals
  • Is easily localizable to any language

Working modes

  • Stop/View Log
    Review of the detection results stored in the log. The Signals table, Spectrogram, Waterfall and Alarms graph give full information about the detected signals and alarm events
  • RF Sweep
    The main detection mode. Provides maximum reaction time and the highest sensitivity. The operator can move the system or its antenna during the detection.
  • Guard 24/7
    Rejection of short transmissions and usage of two antennas reduces false alarms in this mode. Suitable for 24 hour detection without unwanted false alarms.
  • Car Tracker Detector
    Detection of vehicle mounted GPS trackers transmitting the coordinates via mobile networks.
  • LF Probe
    Checking of AC, Ethernet, Telephone and Alarm wires and the infrared for the presence of unwanted bugging signals.
  • Wide-Range Analyzer
    Manual mode for preliminary studying of the RF environment
  • Signal Analyzer
    Analysis, demodulation and physical locating of detected signals
  • Settings
    Includes the general settings and information about the mobile networks and wireless bands existing in the area as well as the known signals table

Supplied set

  • Main unit with the built-in spectrum analyzer, antenna switcher and LF converter
  • Software Delta X on the USB flash memory
  • ODA-4 - omnidirectional antennap
  • Coaxial extension cable 5 m
  • MWA-6 - microwave antenna
  • High voltage probe
  • Low voltage probe with alligator connectors
  • In-line modular adapter
  • Infrared/very-low frequency probe
  • Tripod convertible to handlee
  • Computer not included. 

2 Reviews

  • Fast spectrum analyzer

    Posted by Gregory Mendelson on 6th Dec 2021

    When you need to sweep for surveillance, cams and bugs you don't usually have the gift of time. This kit puts it all in one case and the 40KHz to 6,000 MHz range truly covers the spectrum.

  • Amazing as always

    Posted by John Smith on 4th Dec 2021

    I've been using Spyassociates products for a while now and I am always impressed by them. Shows up again in this comprehensive sweeping system.

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Shipping & Returns

Audio devices may not be used to violate the privacy rights of others. In no way will Spy Associates or its subsidiaries or partners be held responsible for inappropriate use of these products.

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Receive free ground shipping on all items we carry. Depending on your location, carrier may vary depending on maximizing delivery speed to your location.

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Some custom built products may require up to 48 hours, which includes custom audio add-ons that may require 72 hours. You will be notified of any delays as soon as possible.

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YES! We ship worldwide. On International Orders, any CUSTOMS FEES are the responsibility of the purchaser NOT SpyAssociates. Every country's import rules are different, so it's impossible to guess how much, and if any fees may apply.

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We test all of our products before shipping to ensure they are in working order.

Your Satisfaction Is Our Number One Concern


All products which are special ordered by the person ordering and are NOT subject to cancellations. Due to the nature of our product line, returns will only be accepted for products damaged upon shipment to the customer*. All returns must be authorized by before product(s) is returned. will replace, refund, or credit your account for returned product(s) at's discretion. We have been forced to implement this policy because of the attraction of our products to unscrupulous people who return products after they have profitably gained from the short-term use of the products.

*Special exceptions may be made on a case by case basis determined by In this event, returns are subject to deductions for shipping costs and a 25% restocking charge and must be returned within a ten (10) day period from date of receipt of product(s). NO refunds will be given for products returned without explicit permission from

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Every product receives FREE LIFETIME SUPPORT. We guarantee all products to be free of defects in workmanship and material for 90 days (some manufacturer's warranty is one (1) year or lifetime - please see info on the page for specific product's details) after sale to the customer. We will replace or repair the product(s) at our option providing there is no evidence of customer misuse, or alteration.

This device will only connect to 2.4 GHz Wi-Fi Networks with passwords that do not contain special characters.

We are unable to guarantee Wi-Fi connection will work with all routers. Although most networks are compatible, certain routers enact stricter security measures that may block remote connections to the camera. Some examples likely to experience these issues are hotels/motels, corporate networks, 4g hotspots, open wifi networks like Starbucks, etc. Some WIFI units require the unit to be paired with a router if the end user is wanting to look at the livestream or receive motion alerts. Only compatible with Android 6 & up, iOS 8 & up. These items will need to format the MicroSD Card before use. This is done through the app.

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