RTL-SDR/LoRa/GPS/RTC hat for Raspberry Pi

Raspberry Pi HAT · 4-in-1 Expansion Board

RTL-SDR / LoRa / GPS / RTC

All-in-One Expansion HAT for Raspberry Pi

Software-defined radio, long-range communication, satellite positioning, and real-time clock — all on a single HAT. Designed for Raspberry Pi, covering everything from signal monitoring to full IoT deployments.

RTL2832U + R860 SX1262 LoRa GPS / BDS / GNSS PCF85063A RTC TCXO Oscillator 5V Bias Tee
RTL-SDR/LoRa/GPS/RTC HAT — SMA connector version
SMA Connector Version
RTL-SDR/LoRa/GPS/RTC HAT — IPEX connector version
IPEX Connector Version
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1.74GHz
Max SDR Frequency
22dBm
Max LoRa TX Power
3
Satellite Systems
4-in-1
Integrated Modules
Core Modules
Features in Detail
📡
Module 01 · RTL-SDR
Software Defined Radio (RTL-SDR)
Powered by the RTL2832U + R860 tuner combination, this module covers a wide frequency range from 100 KHz to 1.74 GHz. The onboard TCXO ensures temperature stability and near-zero frequency drift. The 5V Bias Tee can be enabled in software to power low-noise amplifiers (such as LNA4ALL, HABAMP, and RTL-SDR Blog ADS-B LNA) and active antennas directly through the coax cable. A side-mounted LED indicates the Bias Tee status at a glance. HF Direct Sampling mode enables reception from 100 KHz to 28.8 MHz.
Tuner ChipRTL2832U + R860
Frequency Range100 KHz – 1.74 GHz
HF Direct Sampling100 KHz – 28.8 MHz
Bias Tee5V (software-controlled)
OscillatorTCXO, near-zero drift
Status IndicatorSide LED (Bias Tee status)
Applications: Radio scanning, spectrum analysis, ADS-B aircraft tracking, NOAA weather satellite reception, signal decoding
📶
Module 02 · LoRa / Meshtastic
Long-Range Low-Power Communication (LoRa)
Equipped with the Semtech SX1262 chip, operating in the 860–960 MHz band with a maximum output power of 22 dBm — far exceeding the range of conventional wireless solutions. An onboard TCXO oscillator ensures reliable, drift-free communication. Meshtastic is supported out of the box, enabling decentralized off-grid mesh networking over tens of kilometers without any base station infrastructure.
LoRa ChipSemtech SX1262
Frequency Band860 – 960 MHz
Max Output Power22 dBm
OscillatorTCXO, near-zero drift
Meshtastic SupportOut of the box
Applications: Meshtastic off-grid communication, IoT remote sensing, wireless sensor networks, long-range data relay
🛰️
Module 03 · GPS
Multi-Mode Satellite Positioning (GPS / BDS / GNSS)
Compatible with GPS, BeiDou (BDS), and GNSS satellite navigation systems simultaneously. Multi-constellation positioning improves accuracy and reliability in challenging environments. Both active and passive GPS antennas are supported, making it adaptable to a wide range of installation scenarios — from drones and vehicles to outdoor tracking devices.
Satellite SystemsGPS + BDS + GNSS
Antenna SupportActive & Passive antennas
Applications: Drone positioning, vehicle tracking, outdoor navigation, location data logging
⏰
Module 04 · RTC
Real-Time Clock (RTC)
Features the PCF85063A high-accuracy real-time clock chip, backed by a CR1220 coin cell battery that keeps accurate time even when the board is powered off or rebooted. This directly addresses the lack of a hardware RTC in the Raspberry Pi, making it essential for any time-sensitive application that requires reliable timestamps across power cycles.
RTC ChipPCF85063A
Backup BatteryCR1220 (3V coin cell)
Power-off TimekeepingContinuous, accurate timekeeping
Applications: Data logging with timestamps, task scheduling, time-sensitive applications, event time-stamping
🔔 Join the Waiting List
Want to be the first to know when this product launches? Interested in joining our Beta Test program? Sign up for our waiting list — subscribers will receive an exclusive discount coupon when the product goes live!
Join the Waiting List →
We'll contact you by email. No spam, ever.
Use Cases
What can you do with it?
📡
Spectrum Analysis

Use SDR++ or GQRX to scan the radio spectrum in real time and decode ADS-B, NOAA weather satellite signals, and more.

🌐
Meshtastic Off-Grid Mesh

Build decentralized communication nodes that relay text and data over tens of kilometers — no cell towers required.

🚁
Drone & Vehicle Tracking

Multi-constellation GPS delivers high-accuracy trajectory logging and real-time navigation for drones and vehicles.

🔌
IoT Sensor Node

LoRa's long-range, low-power design paired with RTC precise timing makes it ideal for remote sensor data collection.

💾
Data Logging

RTC ensures accurate timestamps across reboots, while GPS provides coordinates — perfect for scientific data collection.

📻
HF Signal Decoding

Direct sampling mode covers shortwave and medium wave — receive weather balloon radiosondes, amateur radio, and more.

Compatible Raspberry Pi Models

Raspberry Pi 3B Raspberry Pi 4B Raspberry Pi 5 CM4 CM5 Pi Zero Pi Zero 2W