Barcode and QR Code Maker vs ZSElmer

Create custom barcodes or QR codes with ease—whether you need a single code or an entire batch. Simply enter your number or URL, select your quantity, choose whether the values should increment automatically and/or have a text value below the code. You can then export your codes as a PDF or print them directly from your device.

ZSELmer is your modern HAM radio companion – proudly built in South Africa and made for radio amateurs worldwide. Whether you’re a beginner or an experienced operator, ZSELmer helps you log QSOs, track satellites, and connect with the global HAM community. Key Features SATELLITE TRACKING Real-time tracking for ISS, FM, and amateur satellites Predict satellite passes days in advance Live antenna pointing data (azimuth & elevation) LOGBOOK Quick QSO logging: callsign, frequency, mode, signal reports, grid locator, and time Auto-fill UTC and location for accuracy Contest-ready with ADIF, Cabrillo, and CSV import/export COMMUNITY Share your HAM radio journey with fellow operators Post photos, videos, and stories Connect globally, make friends, and learn from Elmers (mentors) PROUDLY SOUTH AFRICAN, MADE FOR THE WORLD “ZS” is the South African callsign prefix. “Elmer” is a trusted HAM mentor – and ZSELmer is yours, guiding you from first QSO to advanced DX. Whether you’re chasing satellites, logging contests, or sharing stories with fellow HAMs, ZSELmer grows with you – from beginner to expert.