Johnson's Techworld

Pass of ARISS at 0300z: Heard VU2MZT, VU2LBW, VU2PEP, VU2HMY. All had excellent signals, received with my fixed elevation/azimuth Moxon Yagi and IC-2730A dual band VHF/UHF radio.

AO-123 (ASTRU-1) is a 12U Cubesat which was launched last year. One Cubesat unit measures 10 x 10 x 10 cm. FM transponder was activated intermittently on weekends

Slightly modified version of my presentation at AMSAT-SA Space Symposium 2 August 2025.

MIDI stands for Musical Instrument Digital Interface. MIDI controller is a device that sends MIDI data to other musical instruments like synthesizers and digital audio workstations. Unlike a