RF Transmitter BuilderDigital Comms + Hardware

Build a complete radio chain from scratch. Type a message, drag components onto the canvas, and watch your signal transform at every stage.

Message:

Presets:

Blocks

Digital

Symbol Mapper

Maps bits to I/Q constellation points

Pulse Shaper

Raised cosine filter to limit bandwidth

RF Hardware

Oscillator

Generates carrier signal at set frequency

Mixer

Up/down converts signal by multiplying with carrier

Bandpass Filter

Passes signal within a frequency band

Power Amplifier

Boosts signal power with possible saturation

LNA

Low noise amplifier for weak signals

Channel

AWGN Channel

Adds white gaussian noise at set SNR

Multipath Channel

Simulates multipath propagation with delay spread

Receiver

Lowpass Filter

Removes high frequency components

Demodulator

Recovers baseband signal from carrier

Symbol Demapper

Converts I/Q points back to bits

Drag blocks here to build your chain

Select a block or click → to inspect signal

Output:

—

BER: 0.0%