RF · ELECTROMAGNETICS · SDR · SPECTRUM INTELLIGENCE
Engineering insight
where signals become information.
Kostet Consulting develops advanced radio, electromagnetic and signal-analysis systems — and provides specialist engineering support when conventional answers are not enough.
SPECIALIST ENGINEERING
Deep RF and EM knowledge, from physical fields to digital decisions.
Kostet combines decades of practical electronics and electromagnetic experience with modern software-defined radio, DSP, positioning, timing and networked sensing. The result is engineering that considers the entire signal chain — antenna, propagation, analogue front end, sampling, synchronization, algorithms, data transport and operator interface.
Work ranges from focused technical investigations to complete prototype and system architecture, particularly where RF behaviour, weak signals, interference, synchronization or unusual measurement problems make the task difficult.
SYSTEMS & PRODUCTS
Technology developed around real measurement problems.
Current Kostet platforms focus on spectrum monitoring, passive RF detection, synchronized signal-source localization and specialized SDR receiver systems. Experimental engineering projects are shown separately.
IRIS II
Professional spectrum monitoring & RF analysis
A distributed spectrum-monitoring and RF-intelligence platform built around Search and Task receiver roles, persistent Signals, recording, band-aware analysis and future DF/TDOA localization — while keeping acquisition and DSP independent of browser presentation.
Product overview →TraceGuard
Radio-neutral detection & observation platform
Distributed collectors and specialized probes observe multiple radio technologies and turn individual detections into persistent Targets, events and localization evidence with preserved source, confidence and uncertainty.
Product overview →TDOA Location
Time-coherent distributed RF sensing
GNSS-referenced SDR sensor nodes preserve precise sample timing for centralized cross-correlation, TDOA estimation, uncertainty-aware emitter localization and future fusion with direction-finding observations.
Product overview →MRS & SDR Receiver Systems
Multi-receiver diversity, repeater control and purpose-built DSP
Home of the Kostet Multi Repeater System (MRS): a flexible SDR-based multi-receiver and repeater platform combining maximal-ratio/diversity reception, NBFM DSP, quality-aware receiver handling, audio routing, repeater control, web supervision and automated Linux/Raspberry Pi deployment — alongside other specialized receiver architectures.
Product overview →Multi Watchdog
Remote supervision with controlled recovery
Network reachability, power and battery supervision, temperature monitoring, relay control, event history and notifications for unattended technical installations — with configurable decision logic designed to recover equipment without blindly power-cycling it.
Product overview →EXPERIMENTAL / PERSONAL R&D
Engineering also happens for curiosity.
Some Kostet projects are exploratory rather than commercial products. They are useful testbeds for measurement ideas, synchronization, distributed sensing and data analysis.
GridPhase / GridPulse
GNSS-synchronized measurements of mains phase, frequency and large-scale grid behaviour. An experimental project rather than a primary Kostet commercial offering.
ANALYSIS & MULTI-SENSOR CAPABILITIES
Turning observations into technical understanding.
New analysis functions are being developed around Kostet's sensing platforms to correlate observations across time, frequency, location and sensor type — with the goal of helping an operator move from detection to explanation and localization.
Analysis Tools
Cross-domain correlation, classification & evidence
Tools under development for combining spectrum observations, signal metadata, recordings, target histories, localization results and other sensor evidence into a coherent analysis workflow.
Development overview →Drone Detection & Localization
RF detection to geolocation through coordinated sensors
A system-of-systems approach for detecting relevant RF activity associated with drones and controllers, correlating observations, and adding position determination using distributed synchronized sensing, DF and TDOA where signal conditions permit.
ENGINEERING SERVICES
Independent expertise for difficult RF and EM problems.
RF & Electromagnetic Engineering
Propagation, coupling, antennas, interference, shielding, EMC/EMI behaviour and unusual field problems.
Spectrum Monitoring & Signal Analysis
Measurement strategy, SDR acquisition, signal classification, interference investigation and spectrum intelligence.
SDR, DSP & Radio System Architecture
Complete receive-chain design from RF front ends and synchronization through DSP, backend processing and operator interfaces.
Technical Security & Counter-Espionage
Specialist technical analysis, RF-aware security assessments and engineering support for sensitive environments.
Prototype Development & Technical Investigations
Rapid proof-of-concept development, embedded sensing, synchronized measurement and experimental system validation.
LIVE & MEDIA
See the work in operation — and hear another side of Kostet.
Selected public services and media are available directly from Kostet. External links open in a new tab.
GridPhase Looking Glass
Live frequency & phase observations
A public, read-only view into the experimental GridPhase network. Follow live and historical grid-frequency and phase behaviour without access to the operational system.
Open lookingglass.kostet.se ↗Kostet Music
Music from the Kostet YouTube channel
Engineering is the professional core, but creativity does not stop at RF. Visit the Kostet YouTube playlist for music and other media.
Listen on YouTube ↗
EXPERIENCE THAT CONNECTS DISCIPLINES
More than four decades of electronics, RF and electromagnetic problem-solving.
The strongest RF solutions rarely come from looking at only one layer. Kostet brings a long practical background across electronics, radio communication, antennas, microwave techniques, electromagnetic effects, SDR, signal processing, measurement systems and technical security.
That breadth is especially valuable in projects where the symptom appears in software but the cause is analogue, where an RF problem is really a synchronization problem, or where a measurement only becomes useful when the physics, algorithms and user interface are designed together.
START A CONVERSATION
Have a difficult signal, RF or EM problem?
Describe what you are trying to achieve. The enquiry form is intentionally broad — an early technical discussion is often the fastest way to determine whether Kostet can contribute.