HSA-Q1 Professional RF Spectrum Analyser

The HSA-Q1 is a specialist RF spectrum analyser available to government agencies and elite counter surveillance professionals engaged in high-threat Technical Surveillance Countermeasures (TSCM).

Engineered in the UK to the highest military standards, it provides unprecedented frequency analysis capabilities in a truly portable handheld format.

Where standard bug sweepers risk missing modern burst-transmitters or frequency-hopping eavesdropping hardware, the HSA-Q1 scans its entire 1 MHz to 13.44 GHz frequency spectrum in under half a second.

Full-Spectrum Analysis & Waterfall Spectrogram Display

When inspecting complex RF environments, operators can adjust the visual sweep span from the full 13.44 GHz range down to a narrow 25 MHz window simply by moving the touch cursor and zooming in on suspect signals.

The integrated Waterfall Spectrogram provides a full-colour graphical representation of all detected signals over time.

This allows this high-precision spectrum analyser to isolate fast pulsed digital transmissions, frequency-hopping bugs, GSM/3G/4G/5G cellular devices, Wi-Fi video links, and burst-transmitting GPS trackers that operate too quickly for conventional meters.

Advanced Background RF Subtraction & Persistence Mode

To operate effectively in RF-congested urban environments or modern office buildings, the HSA-Q1 features an advanced background memory function.

Operators can conduct an initial background sweep of the environment, store the baseline profile, and compare subsequent sweeps in real time.

Any newly introduced signal is automatically highlighted on the 6-inch daylight-readable TFT screen for immediate inspection.

Furthermore, Persistence Mode tracks signal duration by altering signal trace colours from blue to deep red as a transmission persists, ensuring covert transmitters hiding inside noisy broadcast environments are instantly exposed.

Direct Tuning, Audio Demodulation & USB Memory Logging

Featuring five selectable attenuation levels and a direct-tune sensitivity down to -100 dBm, the unit allows operators to isolate signals from adjacent rooms or lock directly onto local sources.

With a single button press, the operator can demodulate and listen to live audio feeds on AM, Narrowband FM, or Wideband FM through the internal speaker or supplied earphones.

All sweep events and spectrogram traces can be logged with real-time date and time stamps directly to a USB memory stick for offloading to a Windows PC, providing comprehensive graphical data for client reports.

Housed in a rugged machined aluminium enclosure weighing just 1.3 kg, the kit includes a 23 cm Multi-Element Concentric Antenna, a Telescopic Whip Antenna, and a military-standard carry case for rapid deployment.

For standard commercial operations or accessible non-restricted sweepers, explore our broader specialist bug detector and listening devices categories.

Provided you deploy your surveillance equipment for lawful purposes, the situations that suit using a voice recording device or high-specification spectrum analyser are extensive.

If you have questions regarding government agency verification or technical specifications for your spectrum analyser, please feel free to contact our expert team today.

Who is eligible to purchase the HSA-Q1 RF spectrum analyser?

The HSA-Q1 is strictly restricted to government agencies, military units, law enforcement departments, and accredited countermeasures professionals performing high-level TSCM sweeps. Verification is required prior to order processing.

How does a spectrum analyser differ from a standard RF bug detector?

Standard bug detectors measure raw signal strength on simple bar graphs. A spectrum analyser visualizes individual radio frequencies across a graph, showing exact signal amplitude, modulation type, and frequency width. This allows operators to differentiate between innocent background broadcasts and sophisticated surveillance bugs instantly.

How does the 0.5-second sweep speed help locate burst bugs and frequency hoppers?

Modern covert bugs often transmit data in millisecond bursts or rapidly shift frequencies to avoid detection. Scanning the entire 13.44 GHz spectrum in 500 ms ensures the HSA-Q1 catches these split-second transmissions and holds their trace on the Waterfall display.

What is the advantage of the Background Memory Subtraction feature?

In modern offices filled with Wi-Fi, Bluetooth, and cellular signals, identifying a new bug can be difficult. The background memory feature captures the room’s existing RF environment as a baseline. When rescanned, the HSA-Q1 subtracts the baseline and highlights only newly introduced signals.

Can the HSA-Q1 spectrum analyser locate non-transmitting voice recorders or offline cameras?

No. RF spectrum analysers only detect active radio frequency emissions. Non-transmitting dictaphones or offline micro SD cameras store data locally without emitting RF signals. Finding non-transmitting bugs requires a physical search, a thermal camera, or a Non-Linear Junction Detector (NLJD).

Can the HSA-Q1 detect 5G cellular bugs, Wi-Fi spy cameras, and GPS trackers?

Yes. Its 1 MHz to 13.44 GHz spectrum covers all current cellular bands (2G, 3G, 4G, 5G), 2.4GHz/5GHz/6GHz Wi-Fi networks, Bluetooth devices, and satellite communication links.

How does Persistence Mode assist during sweeps in high-noise environments?

Persistence Mode color-codes signals based on their duration. Transient background noise appears briefly in blue, whereas continuous or recurring bug signals shift toward bright red, making stationary eavesdropping transmitters stand out clearly against ambient radio chatter.

Do I need a special license to operate a spectrum analyser in the UK?

No. The HSA-Q1 is a passive receiving instrument that measures ambient radio frequency signals without transmitting or interfering with wireless networks. While legal to operate in the UK without a wireless telegraphy licence, sales of this specific model remain restricted to professional and government entities.

• Sales are strictly restricted to government bodies, military units, law enforcement agencies, and vetted TSCM counter-surveillance specialists.
• Designed for active radio frequency (RF) detection and signal analysis; non-transmitting audio recorders, powered-down electronics, or hardwired cameras require physical inspection or NLJD equipment.
• While the touchscreen interface is user-friendly, obtaining maximum benefit from Waterfall Spectrograms and RF trace analysis requires a solid understanding of radio frequency behavior and TSCM sweeping protocols.
• Exported USB sweep logs and graphic trace files require a Windows PC to run the bundled digital viewer software; Mac users will require a Windows virtual environment.
• The internal lithium polymer battery delivers up to 4 hours of continuous operational sweep time; use the supplied auto-switching mains charger for extended monitoring sessions.

• UK-manufactured handheld RF spectrum analyser designed for government agencies and elite TSCM sweep teams.
• Ultra-fast frequency scan sweeps the entire 1 MHz to 13.44 GHz spectrum in less than 0.5 seconds (down to 200 ms).
• Waterfall Spectrogram display provides real-time multi-colour graphical analysis of complex digital transmissions.
• Background Memory Function records ambient RF baselines to automatically highlight new or hostile signal threats.
• Persistence Mode tracks signal duration over time, altering visual trace colours to expose hidden bugs in noisy environments.
• Direct-tune audio demodulation (AM, NFM, WFM) via internal speaker or earphones with sensitivity down to -100 dBm.
• Five selectable sensitivity attenuation levels allow sweeps to focus on immediate room areas or adjacent buildings.
• USB host port logs full sweep data with time/date stamps for graphical PC offload and historical report comparison.
• Includes a 23 cm Multi-Element Concentric Antenna, a Low-Frequency Telescopic Whip Antenna, and a military-grade carry case.

• Product Type: Handheld High-Speed RF Spectrum Analyser & TSCM Signal Analyzer
• Frequency Scan Range: 1 MHz to 13440 MHz (13.44 GHz) Continuous Coverage
• Sweep Speed: 500 ms (Full Spectrum Sweep) down to 200 ms (Narrow Span Sweeps)
• Visual Display: 6.0-Inch Outdoor-Readable Color TFT Graphic Display Screen
• RF Sensitivity: -80 dBm Max in Sweep Mode / -100 dBm Max in Direct Tune & Listen Mode
• Signal Demodulation: AM, NFM (Narrowband FM), WFM (Wideband FM) with 1 kHz Tuning Resolution
• Analysis Modes: Full Spectrum, Adjustable Span (down to 25 MHz), Waterfall Spectrogram, Persistence Mode
• Memory & Reporting: Background Baseline Subtraction & USB Memory Log (Time/Date Stamped)
• Antenna Connectors & Types: TNC Jack; Multi-Element Concentric Antenna (23 cm) + Telescopic Whip Antenna
• Power System: Internal Rechargeable Lithium Polymer Battery (Micro USB Charge Port / Mains Auto-Switching Adapter)
• Battery Endurance: Up to 4 Hours continuous operating time per charge
• Dimensions & Weight: Main Unit: 223 mm × 158 mm × 45 mm / Main Unit Weight: 1.3 kg (Full Military Case Kit)

• HSA-Q1 Handheld RF Spectrum Analyser Main Unit
• Multi-Element Concentric Antenna (23 cm / 13.44 GHz Max)
• Telescopic Whip Antenna (Low-Frequency Application)
• 5V Micro USB Mains Power Adapter with International Socket Adapters
• High-Quality Audio Earphones
• USB Flash Drive with Windows PC Graphic Viewer Software
• Compact Military-Standard Heavy-Duty Protective Transit Case
• Comprehensive Operating Manual & TSCM Sweep Guide