🚧 UNDER DEVELOPMENT  ·  ZenithSDR is launching soon  ·  Orders are temporarily disabled
Next-Gen SDR Software — v2.0

Master the
Full Spectrum.

The only SDR app that unifies RTL-SDR, SDRplay, and global WebSDR servers — with built-in ham decoders, DX Cluster, and NOAA satellite imagery. All in one dark, focused interface.

ZenithSDR — 99.4990 MHz · WFM · RTL-SDR #0
ZenithSDR Main Interface
10+
Ham Decoders
64K
FFT Resolution
7-Day
Free Trial
∞
Saved Frequencies
⚡ Everything You Need

Built for Real Operators.

Every tool a serious ham or SDR enthusiast needs — no plugins, no extras, no compromises.

🎛️
Hardware ControlFree Trial

RTL-SDR & SDRplay

Seamless plug-and-play for RTL-SDR dongles and SDRplay devices. Sample rate up to 2.4 MHz, RF gain control, frequency correction, and squelch — all from one unified panel.

RTL-SDR All Versions
SDRplay RSP Series
2.4 MHz Sample Rate
RF Gain 0–49 dB
Freq. Correction
Auto Band-Mode
Squelch Control
Saved Frequencies
VFO Panel
🌐
Global WebSDRPro

Access remote servers worldwide

Connect to any WebSDR server on the planet — including University of Twente — directly within ZenithSDR's workspace. No browser tabs, no context switching.

University of Twente
WebSDR.org Network
Embedded Browser
No Tab Switching
DX Cluster Integration
Band Selector
Propagation Data
One-Click Tuning
🌊

Waterfall Display

Ultra-sharp 64K FFT waterfall with customizable palette (GQRX, Matrix Rain), zoom, contrast, wave height, speed, and 3 save presets.

  • 64K FFT Resolution
  • Adjustable Zoom 1–10×
  • Contrast & Decay
  • 3 Display Presets
  • Multiple Color Palettes
  • Dark Forest Theme
🎛️

Signal Processing

Professional-grade noise reduction, 5-band equalizer (80Hz–12kHz), and notch filter — clean up any signal instantly.

  • Noise Reduction (NR)
  • Threshold & Smoothing
  • Notch Filter
  • Frequency + Depth
  • 5-Band Equalizer
  • 80Hz to 12kHz
📡

Demodulation Modes

All major modes in one click. Full-bandwidth WFM for broadcast, narrow NFM for ham repeaters, DRM digital radio, and classic AM/SSB/CW.

  • WFM — Wide FM
  • NFM — Narrow FM
  • AM · USB · LSB · CW
  • DRM Digital Radio
  • Auto BW Selection
  • Band Auto-Mode
📻

DX Cluster

Live ham radio spots worldwide

Connect to VE7CC-1 or any DX Cluster server. Filter by band and region (Africa, EU, NA…). Click any spot to instantly tune. Real-time feed with your callsign.

Live Spot Feed
Region Filter
Band Filter
One-Click Tune
Your Callsign
VE7CC-1 Server
☀️

Solar & Propagation

HamQSL + DXMaps real-time data

Real-time solar-terrestrial data auto-refreshes every 10 minutes. SFI, A/K index, X-Ray flux, aurora, MUF, and band condition summaries — all visible at a glance.

SFI · A-Index · K-Index
X-Ray Flux
Aurora Activity
MUF Forecast
Band Conditions
HamQSL Solar Banner
DXMaps Integration
10-Min Auto-Refresh
📸 App Walkthrough

Every Pixel Explained.

Hover over any callout to learn what each part of the interface does.

— 01 / Main Interface —

The Full Workspace

ZenithSDR · Main Interface
ZenithSDR Full Interface
1
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3
4
5
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1
🎚️

VFO & Frequency Display

Massive digital readout (99.4990 MHz), z-zoom, bandwidth, and tune button. Scroll-wheel adjusts kHz, Shift×10, Ctrl×100 kHz.

2
📊

Live Spectrum + Waterfall

Real-time FFT spectrum (top) and waterfall (bottom). 64K resolution, GQRX palette, Matrix Rain wave colors.

3
🔊

Sound Meter

Peak audio levels with color-coded zones — green (safe), amber (warning), red (clipping).

4
🗺️

Band Map

Quick-access band switcher: LW · MW · 49m · 41m · 31m · 25m · 22m · Ham bands (160m → 20m).

5
📻

DX Cluster Live Feed

VE7CC-1 server integration. Live ham spots, region filter, click-to-tune.

6
📟

Built-in Decoders

CW · RTTY · FT8 · FT4 · WSPR · PSK31 · SSTV with WPM, threshold, shift controls.

7
🎛️

Band Selector

One-click jump to SW 16m, 13m, 11m, FM broadcast, 160m, 80m bands with preset bandwidth.

— 02 / Radio Panel —

Total Hardware Control

Every receiver setting, one click away.

⚡

Sample Rate

Up to 2.400 MHz — full RTL-SDR bandwidth.

→
📡

RF Gain Slider

0–49 dB with 1dB precision. Live adjustment.

→
🎯

Freq. Correction

Calibrate hardware drift to the nearest part-per-million.

→
RADIO Tab
VFO Panel
←
💾

Saved Frequencies

Bookmark stations. Double-click to tune, Delete to remove.

←
📶

Demod Mode

WFM · NFM · AM · USB · LSB · CW · DRM — one-click select.

←
🔇

Squelch Threshold

Silence noise floor — keep audio clean when no signal.

— 03 / Display & Themes —

Make It Yours

DISPLAY Tab
Display Settings
🔍

Zoom 1× to 10×

Pinpoint signals at sub-Hz resolution.

🌈

Contrast & Range

Sharpen the waterfall — dB span 36dB.

💧

Wave Decay

Smooth wave transitions over time.

⚡

FFT 4K → 64K

Higher resolution = finer signal detection.

💾

3 Presets (P1/P2/P3)

Save your favorite display setups.

📈

Waterfall Speed

From slow scrolling to real-time blur.

THEMES Tab
Themes
🌲

Dark Forest UI

Deep green-on-black for night ops.

🟢

Matrix Rain Wave

Cinematic falling-code wave style.

🎨

GQRX Palette

Classic SDR waterfall colors.

🌌

Custom Combinations

Mix UI + Wave + Palette freely.

🌃

Easy on the Eyes

Built for long late-night sessions.

♾️

Save Forever

Your theme persists across launches.

— 04 / Audio Processing —

Studio-Grade Signal Chain

Pro-level audio shaping built into every panel.

Audio Chain — EQ · NR · Notch · Decoder

eq.png

🎚️

5-Band Equalizer

80Hz, 250Hz, 1kHz, 4kHz, 12kHz — shape every signal.

🔇

Noise Reduction

Threshold + Smoothing sliders. Remove static, keep voice.

⚠️

Notch Filter

Surgical removal of 1kHz tones (heterodynes). Variable depth.

📡

Ham Decoder

CW · RTTY · FT8 · FT4 · WSPR · PSK31 · SSTV — built-in.

⚡

WPM / Threshold / Shift

Fine-tune the decoder to weak or fast signals.

🎯

Band Selector

SW 16m, 13m, 11m · FM 87.5–108 MHz · 160m / 80m ham.

🎬 Watch It Live

60 Seconds. Zero Doubt.

See exactly what ZenithSDR does — no marketing, just the real app.

📟 Ham Decoders

Decode Everything.

Built-in decoders for every major digital mode — no external software needed.

🟦 Pro

FT8

Weak signal digital mode for HF. SNR readout, live decode window.

🟦 Pro

FT4

Faster FT8 variant. Same clean interface.

🟩 Pro

WSPR

Weak Signal Propagation Reporter — monitor global propagation.

🟩 Pro

PSK31

Phase-shift keying, popular on HF for low-power contacts.

🟧 Pro

RTTY

Classic radioteletype — still widely used in contests.

⭐ Free

CW

Morse code decoder with adjustable WPM and threshold.

🟥 Pro

SSTV

Slow-scan TV — receive actual images from radio stations.

🛰️ Pro

NOAA APT

Decode NOAA weather satellite images in real time.

Ham Decoder — FT8 · SNR: 10.0 dB · 0 c/m
Ham Decoder

Trial vs Pro.

Start free — upgrade when you're ready.

Feature Free Trial Pro License
AM Demodulation
CW Morse Demodulation
RTL-SDR Hardware 10 min/session, 7 days
SDRplay Hardware 10 min/session, 7 days
WebSDR Integration
SSB (USB / LSB)
WFM / NFM / DRM
Noise Reduction
FT8 / FT4 Decoder
WSPR / PSK31 / RTTY
SSTV Decoder
NOAA APT Satellite
DX Cluster
Solar/Propagation Data
Unlimited Sessions
💎 Pricing

One Price. Forever Yours.

No subscriptions. No renewals. Buy once, own forever.

⭐ Pro Edition

ZenithSDR Pro

$24 .99 USD

Add pricing plans from the admin panel