VU2CPL
Manoj Ramawarrier

Unified single-page dashboard for the whole shack, built in Vue 3 and served from Node-RED via uibuilder — replacing the legacy AngularJS /ui board. Twelve collapsible cards (FlexRadio, LP-700, SPE amplifier, rotator, lightning protection, power control, solar conditions, DXCC tracker, RBN skimmer, Raspberry Pi fleet, internet health, GPS NTP) lay out in a responsive masonry grid that adapts from phone to desktop with no build step. Each card polls flow context every 1–5 s, shows a colour-coded collapsed summary and expands for full telemetry. Top bar carries the callsign, a live/offline connectivity pill and four clocks (UTC / IST / sunrise / sunset). PWA-installable on iPad and iPhone via "Add to Home Screen".

Real-time Node-RED flow tracking all four slice receivers via the FlexRadio TCP API, with dual SmartSDR client support (AetherSDR + iPad). Colour-coded active-slice indication — amber for RX, red for TX — now surfaced as the FlexRadio card in the Vue 3 shack dashboard above, and still on the legacy AngularJS /ui board.

Pulls worked DXCC data from Club Log and monitors DX cluster spots via telnet. Compares each incoming spot against the worked log and alerts in real time — red for new DXCC entity, blue for new band, amber for new mode fill. Colour-coded dashboard panel with per-band and per-mode filtering. Club Log DXCC API integration with 24h refresh.

Automatically disconnects antenna and radio when lightning is detected within 25 km. Dual source: Open-Meteo lightning_potential API (polled every 5 min) + AS3935 local sensor via MQTT. Leaflet/OSM map with storm overlay. 20-min auto-reconnect timer. On disconnect it also sends a transmit set inhibit=1 command to the FLEX-6600 over the SmartSDR API, so the rig can't key up into a disconnected antenna — SmartSDR shows a red TX-Inhibit indicator and a Telegram alert fires. The inhibit clears automatically on reconnect, manual override or bypass; the radio stays powered and RX-capable throughout.

Full remote operation capability including antenna switching via Tasmota MQTT relays. Operates the FLEX-6600 via SmartSDR from anywhere. Integrated with the lightning protection system for safe unattended operation.

Stratum-1 GPS-disciplined NTP server on a Raspberry Pi 3B with a u-blox NEO-M8N. Kernel pps-gpio + chrony pulls PPS error down to ±171 ns — well below anything a userland NTP implementation can match. Publishes chrony status, satellite count and fix quality over MQTT to the shack dashboard, with an LWT offline marker. Production timeserver for the LAN.

PPS-disciplined NTP server on a NodeMCU ESP8266 with a Quectel L89 GPS. Captures the PPS edge on a GPIO interrupt for sub-microsecond second alignment, holds stratum 1 across short PPS dropouts via holdover logic, and falls back to NMEA-only timing (honest stratum 2) on full lock loss. Publishes status over MQTT with the same schema as the Pi NTP server and an LWT offline marker. WiFiManager captive-portal config — no compile-time secrets.

ESP32 firmware bridging an outdoor AS3935 lightning sensor to the shack MQTT broker. Moving the sensor outdoors — battery + solar, IP65 enclosure — recovers the chip's rated ~40 km range that an indoor I²C bus eats. The full AS3935 register surface is exposed over an MQTT command channel, so noise floor, watchdog threshold and TUN_CAP calibration can be tuned live from the dashboard without opening the enclosure. WiFiManager captive portal for first-time setup.

Modern Python 3 remote-control server for SPE Expert HF amplifiers (1.3K-FA / 1.5K-FA / 2K-FA). Runs on a Raspberry Pi over USB serial and serves both a built-in web dashboard and a WebSocket API. Implements the full SPE Application Programmer's Guide Rev 1.1 plus the undocumented RCU command set, so the amplifier's LCD can be mirrored frame-by-frame. Mixed-client broadcast — text JSON for browsers, binary RCU frames for the MacExpert companion app — over the same socket. Threaded reader + async writer survive the USB-serial poll glitches that crash naive serial_asyncio setups. Based on original work by OH2GEK, rewritten and extended.

Swift / SwiftUI macOS app that mirrors and controls SPE Expert HF amplifiers over either local USB serial or remote WebSocket (via spe-remote). Two-way live mirror of the amp's LCD using RCU 0x6A frames — every sub-menu (CAT, CONFIG, TEMP/FANS, RX ANT, TUN ANT → PORT, ALARMS LOG, MANUAL TUNE, ANTENNA matrix, YAESU / TEN-TEC pickers, STANDBY banner) tracked with cursor-accurate state. Auto-detects the model (1.3K / 1.5K / 2K) from the status frame, auto-scales the power display to the LOW/MID/HIGH level, and offers tap-to-cycle status chips for STATUS / BAND / ANT / IN / LEVEL / MODE / CAT. Universal binary (Apple Silicon + Intel).

Go WebSocket bridge for the Telepost LP-500 / LP-700 USB-HID power and SWR meter. Owns the meter's HID handle and fans live telemetry out to many concurrent clients — browsers, phones, logging PCs — while routing control verbs back. Cross-compiles to Linux (arm64 / armv7) and macOS; ships a systemd unit and udev rules for headless Raspberry Pi deployment. LAN-only, zero auth.

Native SwiftUI macOS client that talks to LP-700-Server over WebSocket. Live power / SWR / channel / alarm display, full control-verb support, settings persistence, a menu-bar glance-view, and macOS notifications for alarm states. Pairs with LP-700-Server so a single HID-attached meter drives operating positions, logging PCs and phones simultaneously.

Native macOS controller for the YCCC SO2R Box Plus contesting switch. USB-HID to the box; live front-panel mirror in the SwiftUI UI (TX/RX, footswitch, speed pot) using the YCCC HID protocol — reverse-engineered and documented. Hosts OTRSP and Winkeyer TCP servers, so N1MM+, Win-Test, WriteLog and TR4W see it as a standard SO2R interface. Supports the default 2-radio SO2R mode and the 4-radio SO2R+ mode.

Native macOS app (universal binary) that merges spots from multiple WSJT-X / JTDX UDP sources and several DX cluster telnet nodes into one unified feed, and re-serves it on a built-in telnet cluster server (port 7300) so loggers like Logger32, N1MM+, Log4OM, and DXKeeper can pick it up. ClubLog integration highlights New DXCC / New Slot / New Band / New Mode in real time; LoTW uploaders are flagged with a green dot from ARRL's user list. NCDXF/IBP and national beacon detection avoids false alerts. Telegram + macOS notifications with per-callsign cooldown. Live filters, sortable resizable columns, auto-clear with disk log, menu-bar background mode. Major rewrite of the original FT8 Cluster Aggregator concept by Vinod VU3ESV — now covers all DX cluster sources, not just FT8.

Native macOS port of LZ2HV's MSHV multi-mode weak-signal program (FT8 / FT4 / Q65 / MSK144 / JT9 / JT65 etc.). Apple Silicon and Intel; verified end-to-end against a FlexRadio 6000-series via AetherSDR's TCI bridge for both RX and TX, with WSJT-X-compatible UDP broadcast feeding RUMlogNG's DXSpots window. Self-contained .app bundle: PortAudio audio backend with Float32/Int24/Int16 fallbacks, FlexRadio CommonRadioAudio + DAX support, real host_processor_info CPU sensor, in-bundle settings/log/wav directories, dark theme, app icon, font defaults. Patches sit on a _MACOS_-conditional macos-port branch on top of upstream main, so Linux and Windows builds remain untouched and new LZ2HV releases merge cleanly.

Native macOS multi-band, multi-mode skimmer for CW + FT8 + FT4, built directly against the HPSDR / Hermes Protocol 1 over UDP. Tested with a Red Pitaya running Pavel Demin's HPSDR-compatible firmware. Up to 8 DDC receivers run in parallel with their own decode pipelines: a CW path (FFT → per-bin peak detect → envelope + Bayesian beam Morse decoder + Patt3Ch.lst callsign validator with confirm-before-emit) and FT8 / FT4 paths (NCO down-conversion → resample to 12 kHz → ft8_lib decode on UTC-aligned slots). Spots feed a built-in DX-cluster telnet server on port 7300, plus uploads to RBN (telnet) and PSK Reporter (UDP). SwiftUI menu-bar UI with live stats. Handles Pavel firmware quirks (rx-count in C4, frequency addressing offset, IQ sign, per-rx sample-rate sharing).

Menu-bar macOS app showing system-clock drift against NTP servers and an attached USB GPS, with a one-click "step the clock now" via chrony. Built for digital-mode operators where ~1 s alignment matters and the LAN may not always reach an upstream NTP source. An optional bundled gpsd + chrony stack turns the Mac itself into a stratum-2 NTP server for the rest of the shack; a small privileged helper daemon lets the app talk to chrony without sudo each time.

Self-contained NanoVNASaver v0.7.3 .app bundle for Apple Silicon. Upstream NanoVNASaver only ships Windows and Raspberry Pi binaries, so this build wraps a Python 3.12 virtual-environment with PySide6 / Qt and the NanoVNASaver package, behind a small bash launcher in Contents/MacOS/. Slimmed from ~1.3 GB to 253 MB by stripping unused Qt frameworks, qml, translations, metatypes, and lipo-thinning every Mach-O binary to arm64. Logs to ~/Library/Logs/NanoVNASaver/nanovnasaver.log for easy support.

Live, sortable tables of DXCC standings for every Indian (VU / AT / AU) callsign, from two data sources on one page. The LoTW tab parses all 17 ARRL DXCC Standings PDFs each month — Mixed / Phone / CW / Digital / Satellite / bands 160 m to 6 m / Challenge / Honor Roll. The Clublog tab scrapes the Asia Top-2000 Confirmed league every day and pulls out Indian prefixes. Both tabs share the same layout: green highlight for column leaders, red for changes since the last snapshot, click-through to QRZ.com on every callsign. Table layout adapted from the original VU DXCC list template by VU2DCC.