OpenSourceSDRLab has merged the HackRF One and PortaPack H4M into a single PCB called the PortaRF, ditching the classic stacked-board approach in favor of a standalone handheld that transmits and receives across 1 MHz to 6 GHz. The redesign bakes in a larger 4.0-inch IPS resistive touchscreen (up from the original 3.2-inch matte panel), more flash storage, a 3,000mAh battery, and better signal integrity than the bolted-together originals.
Under the hood, PortaRF keeps the silicon that made the HackRF lineage successful. The board pairs an NXP LPC4320 dual-core Cortex-M4/M0 microcontroller with a Xilinx XC2C64A CoolRunner-II CPLD (and an AGM AG256SL100 alternative), feeding a MAX2837 2.3 to 2.7 GHz transceiver and an RFFC5072 wideband synthesizer with a 30 MHz to 6 GHz mixer. Storage runs through 2MB of SPI flash plus a microSD slot, and the front of the case has gamepad-style directional buttons, a rotary knob, and status LEDs for power, RX, TX, USB, RF, and the 1.8V rail. A USB-C port handles charging and data, and a CR2032 keeps the RTC alive.
Firmware is a PortaRF-specific fork of Mayhem, tracking closely with the upstream project. The hardware documentation, 3D shell files, and firmware binaries live in the OpenSourceSDRLab GitHub repository, with the parent Mayhem firmware available separately. Out of the box it can decode ADS-B, AIS, Bluetooth, NRF24L01, analog TV, weather radiosondes, TPMS, and pagers, and transmit ADS-B, APRS, key fob emulation, Morse, SSTV, RDS, and OOK signals.
An optional AI MDK extension board mounts on the back of the PCB and adds an ESP32-S3 with beta voice control, letting you wake the device or switch apps without touching the screen. It is sold as a separate SKU rather than a field-installable upgrade.
Pricing on the OpenSourceSDRLab store starts at $220 (€202) for the standard bundle with device, USB-C cable, and antenna, while the AI MDK variant runs $255 (€234). Orders ship from China.
