ZSElmer

Vasbyte

About this app

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.