We identify issues, improve functionality and enhance performance at RF, so that you can fully focus on perfecting application-level features. z2labs.io
Z2Labs is Zoltan Papp and Zoltan Doczi, two electronics engineers with over 20 years of experience in RF hardware. Former coworkers, we have joined forces to offer more comprehensive services.
How we work. We do whatever it takes, powered by experience and intuition, to get to the bottom of RF issues as fast as possible. We cut up, patch and firmware-hack PCBs to find the root cause, then suggest production-level fixes on the PCB and in software.
What we do. Together with our network of independent hardware and software experts, there is not much around RF hardware and application troubleshooting we cannot cover. We tackle issues head-on, decide fast and communicate clearly.
Sniff-Sight: a packet sniffer and an RF spectrum analyzer side by side. Every captured 802.15.4 / Thread packet is paired with its own RF burst from an ESP32-S3 SDR, so CRC errors, collisions and invisible losses become visible. Bursts are classified as Thread, BLE, Wi-Fi or microwave oven, with a live web dashboard, packet-loss tracking from frame counters and a one-script installer. Try the demo, no hardware needed.
sdrpp-esp-sdr-source: native SDR++ source for an ESP32-S3 running ESP-SDR, with gapless IQ over USB and a 16 / 40 / 80 MHz on-chip spectrum mode. Ready-to-run packages for Windows, macOS, Linux and Android, plus a conducted measurement report (sensitivity, phase noise, noise figure, IMD, blocking) against a HackRF One and a BB60C.
Z2 Web SDR: the ESP32-S3 receiver in a plain browser, no install. One HTML file over Web Serial in Chrome or Edge: 16 / 40 / 80 MHz spectrum and a GPU waterfall at about 270 spectra per second, touch-first on phones and desktops, with the firmware installer built in. Open it live.
esp-sdr-bridge: the same ESP32-S3 receiver as a SpyServer and rtl_tcp server, for SDR#, GNU Radio, gqrx and remote use.
SDRPlusPlus: SDR++ ESP, the SDR++ fork the packages are built from (branch esp-sdr), including the spectrum-streaming work for SDR++ Server.
The 80 MHz spectrum in SDR++, SDR++ ESP on Android over USB OTG, and the FM broadcast band through a moRFeus upconverter.
Eagle Exhumer: a KiCad 10 plugin that brings old EAGLE designs (.sch / .brd) into KiCad. It runs KiCad's own EAGLE importer, repairs 15 defects that importer leaves on real boards (split power nets, lost net names, shorts from package copper, missing milling, outlines inside packages, wrong copper layer count, and more), then checks the result against the original EAGLE files with a strong quality control: a strict PASS or FAIL, with a report and 3D renders. Tested on 18 real boards, open source (GPL-3.0). One-click import on Windows, fix + check on every platform.
Need help with an RF problem? Get in touch