STACKED LIVE WORKSPACES
Every receiver gets its own spectrum, band plan, waterfall, signal meter, tuning state, hold controls, and focus mode.
MULTI-RECEIVER SDR + DECODER LAB
SPECTER SDR
SCAN THE SPECTRUM. IDENTIFY THE SIGNAL. PRESERVE THE EVIDENCE.
Coordinate one to eight supported local or remote receivers from one Windows workstation. Partition live scans, decode wireless sensors and telemetry, compare directional activity, run up to six analysis views at once, and preserve synchronized RF evidence for review.
1-8RECEIVERS
6LIVE VIEWS
14GUIDED PROFILES
$49.99ONE TIME
REAL APPLICATION // LIVE WORKSTATIONMAIN + ADVANCED DISPLAY
// SEE THE SYSTEM IN ACTION
The workstation first. The analysis screens next.
These are real SPECTER SDR application views, not concept renders. Open any image for the full-resolution interface.
01 // PRIMARY WORKSTATIONCONTROL EVERY RECEIVER FROM ONE SCREEN
02 // SECONDARY SCREENSBUILD UP TO SIX SYNCHRONIZED ANALYSIS VIEWS
// ONE RADIO DESK, EVERY RECEIVER
One workstation, not a stack of disconnected radio windows.
Multiple VFOs inside one sampled passband are useful, but they are not the same as coordinating independent receivers. SPECTER SDR gives each supported local or remote radio its own frequency, bandwidth, antenna role, demodulation, audio, scan assignment, visual history, and recording track, then brings the array together for correlation and review.
// CORE CAPABILITIES
A complete spectrum operations desk.
Real controls, real local processing, and a workflow built for long monitoring sessions rather than quick single-radio checks.
FULL DEMODULATION
NFM, WFM, AM, DSB, LSB, USB, CW, and RAW modes with bandwidth, filter, shift, gain, squelch, and calibration controls.
ARRAY CORRELATION
Compare simultaneous events across antennas, infer direction from amplitude relationships, and flag movement across the array.
WAVEFORM HOLDS
Define frequency ranges and dB-over-floor thresholds per receiver, preserve peaks, and clear individual or array-wide holds.
MULTI-CHANNEL AUDIO
Hear every active receiver through one mixer with channel volume, mute, solo, live meters, and a master output.
QUALIFIED ALERTS
Build Notice, Alert, and Critical classes by threshold and band, then capture synchronized waveform evidence when they fire.
AGGREGATE FULL-RANGE VIEW
Split 24-1766 MHz across the connected array and stitch each receiver slice into one faster combined spectrum and waterfall.
GPU DISPLAY ENGINE
Render spectrum interpolation and waterfall palettes through WebGL2, with automatic high-performance canvas fallback.
// SUPPORTED RECEIVER SOURCES
Build around the radios you already own.
Mix supported receiver families around the job. SPECTER reads each radio's available tuning, gain, and sample-rate controls instead of forcing every device into an RTL-SDR profile.
RTL-SDRValidated RTL2832U receivers including RTL-SDR Blog V3 and V4, NESDR, and compatible models.
BLADERFbladeRF 1.x and bladeRF 2.0 micro through the bundled SoapySDR runtime.
REMOTE RTL_TCPNetwork receivers join as controllable array elements with forwarded tuning and gain.
LIMESDR VALIDATIONOriginal and Mini integration is included, but current Windows hardware validation is still in progress.
TINYSA SPECTRUM ANALYZERS
USB SERIAL // DEVICE-RANGE SWEEPS // NO AUDIO OR IQAdd a tinySA or tinySA Ultra as a spectrum-only source beside the radio array. SPECTER reads the instrument's own frequency limits, sweeps power against frequency, and routes the trace into its spectrum, waterfall, timeline, recording, and optional analyzer-alert tools.
// ARRAY SQUELCH SCANNER
Five radios sweep five times faster and hold on five signals at once.
Choose a frequency range or a saved channel group. SPECTER SDR partitions the work across the connected array, attributes every hit to the receiver that heard it, and leaves a dedicated ADS-B radio untouched.
PARTITION
Split contiguous ranges or saved channel groups across every available receiver.
HOLD
Pause each radio independently while active transmissions remain above the configured floor.
PRIORITIZE
Revisit priority channels, skip current activity, and persist nuisance-frequency lockouts.
LOG
Store time, frequency, strength, duration, detected CTCSS tone, and receiver identity.
// CAPTURE + CONNECT + CONTROL
A complete radio desk that works with the rest of your toolchain.
Move frequency lists, raw signal recordings, remote radios, aircraft data, audio, and tuning commands through established radio formats and protocols.
FREQUENCY MANAGER
Search and group named frequencies, tune on double-click, and import or export CSV lists.
CTCSS DETECT + SQUELCH
Detect all 38 standard PL tones, filter NFM audio by tone, and stamp tones onto scanner hits.
SIGMF IQ CAPTURE
Record gapless cu8 baseband, then replay cu8 or cf32 files at real-time pace with metadata restored.
REMOTE RTL_TCP RADIOS
Add roof, field, or network receivers as full array elements with forwarded tuning and gain controls.
SBS + ICECAST OUTPUT
Feed decoded aircraft over BaseStation TCP and stream a receiver's MP3 audio to an Icecast mount.
RIGCTL CONTROL
Let hamlib-compatible software read and retune a chosen SPECTER receiver through a standard TCP endpoint.
// DECODER LAB
Decode the signal before you call it unknown.
Decoder Lab brings 14 guided profiles into one receiver-tagged feed. Five built-in decoders validate Mode-S and ADS-B, AX.25 and APRS, POCSAG, and NOAA SAME frames. Supported local engines add wireless sensors, radiosondes, AIS, ACARS, digital voice events, and NOAA APT weather-satellite products.
- 14 guided profiles across aviation, weather, amateur, paging, maritime, satellite, digital voice, and device telemetry
- Source, destination, payload summary, frequency, receiver, and time
- Guided local-engine setup for rtl_433, auto_rx, AIS-catcher, acarsdec, DSD-FME, and SatDump
- Engine packets flow into the same receiver-tagged live feed
MODE-S / ADS-BDECODED
UAL218 · ICAO A4B921
1090.000000 MHz · ALT 28,900 FT · 446 KT · HDG 071°
AX.25 / APRSVALID FCS
N0CALL-1 → APRS
144.390000 MHz · POSITION / STATUS FRAME
NOAA SAME WEATHERVALID HEADER
WEATHER ALERT FRAME
162.550000 MHz · ORIGINATOR / EVENT / LOCATION
// WIRELESS SENSOR + TELEMETRY INTELLIGENCE
Turn everyday RF devices into readable telemetry.
Use guided rtl_433 profiles to identify compatible weather stations, temperature and humidity sensors, tire-pressure monitors, utility devices, alarm sensors, remotes, and other short-range transmitters. Add auto_rx to follow radiosonde position, altitude, velocity, and atmospheric telemetry.
315 MHZ ISM
Identify compatible North American sensors, remotes, tire-pressure monitors, and short-range device telemetry.
433.92 MHZ ISM
Decode supported weather sensors, environmental probes, remotes, alarm devices, and utility transmitters.
868 MHZ SRD
Monitor compatible European short-range devices with selectable sub-band guidance and receiver-tagged results.
915 MHZ ISM
Target supported wideband sensor traffic using known device frequencies or a focused array survey.
RADIOSONDES
Use auto_rx for supported RS41, DFM, M10, M20, and related weather-balloon telemetry around 400 to 406 MHz.
CONTEXT PRESERVED
Keep device identity, measurements, checksums, frequency, receiver, and timestamp in the same Decoder Lab feed.
ENGINE-ASSISTED // Sensor and radiosonde profiles require their named local decoder engines. Device support depends on the engine, receiver coverage, regional frequency, and lawful reception.
EXPLORE SENSOR AND RADIOSONDE DECODING
// UP TO SIX-VIEW ADVANCED DISPLAY
See the same RF environment up to six different ways at once.
Build a one-to-six-tile Advanced Display from any connected receiver. Mix interactive 3D terrain, 3D spectrum, 3D waterfall history, conventional spectrum and waterfall, Persistence, or Spectrum Tunnel, then review every tile against one synchronized timeline.
SPECTRUM + WATERFALL
Inspect exact frequency, bandwidth, level, and scrolling history with adaptive scaling and palette controls.
PERSISTENCE
Accumulate signal density so steady carriers, brief emitters, weak excursions, and noise-floor variance remain visible.
3D RECEIVER SPECTRUM
Inspect peaks and neighboring energy as interactive signal geometry across the selected receiver's live span.
3D WATERFALL HISTORY
Turn recent spectral history into a time surface so drift, repetition, and changing bandwidth stand out.
RESEARCH 3D TERRAIN
Orbit accumulated signal structure with GPU acceleration and an automatic Canvas2D fallback.
SPECTRUM TUNNEL
Move to the leading edge of received history and look through measured terrain as it develops over time.
BAND OCCUPANCY
Score frequency bins against the receiver floor and expose intermittent activity through observed duty cycle.
DIRECTION COMPASS
Compare bearing-assigned receivers by relative amplitude, agreement, and resultant direction without claiming a location fix.
IQ CONSTELLATION
Plot live complex baseband to inspect carrier structure, noise clouds, clipping, and receiver quantization.
// ROSEBUD ARRAY VIEW
Turn separate antennas into one directional display.
Assign names, physical slots, antenna types, and bearings, then move the array to a dedicated Rosebud window or second display. One receiver renders as a full 360-degree waterfall; larger arrays add comparative direction and confidence.
- One to eight receiver layouts
- Omnidirectional, directional, and vertical reference roles
- Inferred bearing and movement indicators
- Touch and stylus annotation with PNG export
72°INFERRED
NESW
// SYNCHRONIZED EVIDENCE
Record the session, not just the moment.
CAPTURE
Record one workspace or Rosebud composite, lossless timestamped spectrum tracks, and per-receiver BWF audio without spawning one video encoder per dongle.
FLAG
Drop event markers during the run. Alert classes automatically preserve frequency-labeled waveforms and synchronized array views.
REVIEW
Replay post-roll clips, navigate the timeline, export selected ranges, and open the exact saved Gallery event from the alert dialog.
REPORT
Generate printable HTML and PDF alert reports with signal metadata, session context, and embedded spectrum and waterfall evidence.
// 1090 MHZ ADS-B
Keep aircraft context beside the spectrum.
Reserve one receiver for continuous ADS-B monitoring or let periodic mode borrow an assigned radio for a 10-second check every minute. Traffic extends the window to 15 seconds, then the receiver returns to its previous tuning automatically.
- OpenStreetMap view with cursor zoom, pan, trails, and persistent manual framing
- Callsign, ICAO, altitude, heading, speed, and position-pending contacts
- Dedicated and periodic receiver modes
- New-contact and persistent emergency-state alerts
- Windows location support with manual coordinate fallback
// OPT-IN ADVANCED RESEARCH
Automate the search. Preserve the reasoning.
Research Labs stays out of the normal workflow until enabled. When active, it learns the local RF environment, distributes search bands across available radios, and checks qualified events against ordinary explanations.
ADAPTIVE BASELINE
Learns each receiver's normal spectrum and flags explainable novelty, chirps, Doppler-like drift, hopping behavior, periodic bursts, and wideband events.
MULTI-RADIO SURVEY
Assigns aerospace, digital discovery, or wide survey ranges across idle receivers, alternates sweep direction, and restores saved tuning when stopped.
CONTEXT CHECKS
Compares findings with known protocol bands, live aircraft, visible satellites, array confirmation, bearing, and apparent movement before assigning a review status.
A research score is an evidence-prioritization value, not a probability and not a claim about an object's identity or cause.
// LOCAL FIRST
Your radios and recordings stay on your machine.
No cloud service is required for receiver control, decoding, pattern analysis, alerting, correlation, recording, reports, or the local evidence library. Optional map tiles and satellite catalog updates use OpenStreetMap and CelesTrak when those features are requested. SPECTER Imaging integration is optional and limited to local alert and trigger handoff.
// HARDWARE
Start with one receiver. Build to eight.
WINDOWSWindows 10 or 11, 64-bit
RADIOSOne to eight supported RTL-SDR, bladeRF, or remote receivers; LimeSDR remains on the validation track
USBPowered hubs recommended for multi-radio arrays
ANTENNASMatched antennas and feed lines recommended for correlation
// LICENSING
Permanent workstation license.
No subscription and no required cloud service.
SPECTER SDR$49.99one time
- Complete one to eight receiver workstation
- All demodulation and DSP controls
- Built-in and supported live-engine protocol decoding
- Array scanner, Frequency Manager, CTCSS, and hit log
- SigMF IQ capture/replay and remote rtl_tcp receivers
- SBS, Icecast, and rigctl network interoperability
- Pattern Hunter, Search Director, and Skywatch correlation
- Rosebud array and second-display modes
- TinySA spectrum-analyzer integration
- Continuous recording and event capture
- ADS-B dedicated and periodic monitoring
- Local Gallery, replay, export, and reports
- Optional local SPECTER Imaging integration