📡  By VE6KIX  ·  Free  ·  Portable  ·  Windows

PropDeck Companion

The desktop companion for FT8 & FT4 — live roster, DXCC & grid hunting, activation spotting, alerts, logging and uploads. Everything between your decoder and the world.

One portable .exe — no installer, no runtime, nothing else to set up.

PropDeck Companion — ROSTER
CallsignCallingStageDXCCGridActivatorkmdBAge
JA3ABCCQCQJapanPM748.1k-142s
VK2XYZVE6KIXExchangeAustraliaQF5613k-215s
K5PGWN7QQQEndingUnited StatesEM12US-00162.7k-0917s
W1AWCQCQUnited StatesFN313.0k-0531s
DL2XXCQCQGermanyJO317.4k-1845s
EA8QQCQCQCanary Is.IL187.9k-1698s
inverted DXCC = never-worked entity inverted grid = never-worked square blue = they're calling you red ring = you're working them yellow = on your watch list strikethrough = dupe today

Plug in anything

Speaks your decoder's language

Built on the standard WSJT-X UDP protocol — stock messages only, no plugins, no patched builds. Point your decoder's UDP server at it and go.

WSJT-XJTDXMSHVDecodium 4

One window, whole session

Built for the way you actually operate

🎯

Hunt new ones, automatically

Checked live against your master logbook: a DXCC entity or grid square you've never worked lights its cell the moment it's decoded — and the highlight clears itself the moment you work one.

📻

A roster that reads at a glance

GridTracker's own colour language, taken from its source: each signal owns a cell, so a watched dupe calling you from a new country shows every mark at once, each in its place.

🏕️

POTA · SOTA · WWFF aware

Live activation references spotted in the roster and written into your QSO comments automatically — CQ POTA is understood even before the spot caches catch up.

⚔️

Made for FT8 Battle

Forwards every fresh QSO to FT8 Battle in stock WSJT-X format, blocks the UTC-day dupes that would cost you points, and carries your /name tag. Dupes are struck through in the roster — and still land in your local log.

🔔

Watch list with real alerts

Callsigns you care about flash and sound the moment they appear. Sounds queue politely around your transmit periods — nothing ever fights your decoder for the audio device.

📗

Logs everywhere they belong

Local daily ADIF, uploads to QRZ.com and LoTW, and ADIF relays to up to three other programs at once — GridTracker, JTAlert, whatever your shack runs.

✍️

Review before it counts

Optional manual-submit mode holds every QSO for review: fix a grid, edit a comment, then submit — and the correction lands in your log and everywhere downstream.

🗺️

Live maps via PropDeck.net

The bridge streams your session to PropDeck.net, and the deck lights up with your propagation in real time. Made for each other — literally.

📦

Portable, honest software

One .exe you can carry on a thumb drive. Your config and logs live beside it in plain sight. It reads your master logbook and never, ever writes to it.

The architecture

Everything between your decoder and the world

Companion sits in the middle of your shack's traffic — one hop, zero friction, every QSO enriched on the way through.

Your decoder

WSJT-X · JTDX · MSHV
Decodium 4

PropDeck Companion

  • live roster + hunting
  • UTC-day dupe filter
  • POTA/SOTA/WWFF enrich
  • watch alerts + review

FT8 Battle

dupe-filtered forwarding

PropDeck.net

live map & propagation

QRZ · LoTW

logbook uploads

Local ADIF + relays

daily log · 3 forwards

Better together

PropDeck in the browser.
Companion in the shack.

Two halves of one deck. Run either on its own — together they're the whole picture.

propdeck.net · any browser

PropDeck

The live view of your world on the air.

  • Real-time propagation mapping
  • See your session as it happens
  • Anywhere you have a browser

your shack pc · windows

PropDeck Companion

The working end, next to your decoder.

  • Roster, hunting & alerts
  • Logging, dupe filter & uploads
  • Feeds the deck automatically

Get on the air

Up and running in three minutes

⬇  Download PropDeck Companion

PropDeck-Companion.exe · portable · Windows 10/11 · free

  1. Run the .exe. No installer — config and logs are created right beside it. First run: Windows SmartScreen will warn about an unrecognised app — click More info → Run anyway. Free, unsigned software; you only do it once.
  2. Point your decoder at it. Set your decoder's UDP server to 127.0.0.1:2237 (multicast groups supported too).
  3. Operate. The roster fills, new DXCC light up, dupes get struck through, and every fresh QSO flows to FT8 Battle, QRZ, LoTW and PropDeck.net. That's it.