A new multi-platform desktop satellite tracking application for amateur radio operators, OscarWatch Tracker, has been released and is under active development. Developed by Peter Goodhall, MM9SQL, and hosted on GitHub, OscarWatch provides an integrated environment for tracking AMSAT and other amateur satellites, predicting passes, managing Doppler-corrected frequencies, and optionally automating rotator and radio control—all from a single map-centered interface.

Key Features

OscarWatch is tailored for VHF/UHF satellite operators working FM cubesats (e.g., SO-50, ISS), linear transponders (e.g., RS-44, FO-29), and similar modes. It assumes familiarity with basic concepts like azimuth, elevation, and Doppler but automates the calculations and hardware interactions to let operators focus on making contacts.

Visual Tracking: World map with satellite subpoint, ground track, and footprint overlays (with optional motion arrows and greyline terminator). Includes a polar sky plot relative to your QTH. Support for time scrubbing to preview passes without affecting live hardware. Optional DX station grid marker with live Az/El from the remote location.
Pass Predictions: List of upcoming passes with TCA (time of closest approach/max elevation), filters for minimum elevation and duration. Features include a pass planner with multi-station profiles and .ics calendar export, plus a mutual pass finder for two-station coordination.
Frequency Management: Built-in transponder database with live Doppler-corrected uplink/downlink frequencies. Supports RX offsets (separate for Voice/CW on linear modes), CTCSS tones, and easy toggling between modes. Includes a transponder database editor for custom additions and updates from the published JSON source.

A new multi-platform desktop satellite tracking application for amateur radio operators, OscarWatch Tracker, has been released and is under active development. Developed by Peter Goodhall, MM9SQL, and hosted on GitHub, OscarWatch provides an integrated environment for tracking AMSAT and other amateur satellites, predicting passes, managing Doppler-corrected frequencies, and optionally automating rotator and radio control—all from a single map-centered interface.

Hardware Integration: Optional serial CAT control for supported radios (including Icom IC-910/9100/9700/705, Yaesu FT-847/817/818/991 series, Kenwood TS-2000 beta) with Doppler tracking, satellite/split modes, and CTCSS handling. Dual-radio support for full-duplex setups. Rotator control for Yaesu GS-232 and EasyComm-compatible controllers (including SPID), with manual park and smart azimuth options for 450° rotators.
Additional Tools: Voice announcements for satellite rising, automatic pass WAV recording, Cloudlog integration for frequency logging, and live telemetry (Az/El, range, altitude).

OscarWatch does not decode telemetry or serve as primary logging software; it complements existing tools as a pass assistant for home or portable use.

More Information - https://github.com/magicbug/OscarWatch-Tracker/releases