Antenna System Diagram
High‑performance HF, SO2R, filtering, and automation.
The W7GES station is engineered for clean RF, efficient workflow, and reliable contest‑grade performance. Every subsystem — radios, amplifiers, filtering, switching, grounding, and automation — is designed to work together seamlessly.
Apache Labs G2 / or FlexRadio 6500 SDR
High‑dynamic‑range SDR with Thetis or SmartSDR.
Kenwood TS-890
Independent band operation for search‑and‑pounce or dual CQ.
Radio 1 FlexRadio / 4O3A PGXL Radio 2 Alpha 9500 Legal‑limit output with clean signals.
Amplifiers follow radio band changes instantly via CAT/MQTT messages sent via Node-Red flows.
VA6AM Band‑pass filters for SO2R isolation and clean RF.
Custom dashboards control antennas, filters, relays, amplifiers, and station logic. MQTT provides fast, reliable messaging between devices.
MOAS II Fully automated band‑dependent routing for radios, filters, and amplifiers with built‑in interlock protection. Only Antennas available for the band each radio is tuned to are available to choose from.
Intel I9 N1MM / Center Monitor / AMD Ryzen 7 Thetis G2
The Intel I9 Main operating computer runs Windows 11 Pro. I use N1MM with Spectrum scopes for each radio. The AMD Ryzen 7 runs Thetis on a separate monitor
Lenovo Thinkcentre I7
The ham radio software running on the Debian server is the MOAS II server (the MOAS II client runs in a Node-Red Flow), Node-Red server, Mumble Server. This server also runs a RustDesk Desktop server and a Garmin Relay system that allows my Garmin Inreach to send photos and messages directly to email without the recipient needing a Garmin account.
The station uses a single‑point ground system with copper strap, bonded equipment, and ferrite‑based RF suppression. All feedlines and control lines are protected with panel mounted devices at the tower base.