Grid PF40 Band Conditions — Australia
Localized HF conditions for Maidenhead locator PF40. Coordinating at -39.50°, 129.00°. Updated with real-time telemetry from NOAA and DX cluster reports.
PF40 conditions are FAIR. Best bands: 10m, 12m, 15m, 17m, 20m. SFI: 137.
From Australia operating area, work the 22:38 UTC and 08:25 UTC grayline windows: probe 20m, 30m, and 40m in the 15 minutes either side while the terminator crosses PF40.
10m is the first place to check for long-haul openings from this region, with 15m close behind.
This square sits in Australia footprint and is best used as a planning center for portable, field-day, and home-station band decisions.
- Latitude zone
- mid-latitude
- Local phase
- Daylight
- Aurora exposure
- low at this latitude
- Grayline
- 22:38 UTC / 08:25 UTC
- Best high band
- 10m
- Nearest city
- Australia operating area
● Local Band Quality Scorings
Use this local score for PF40, then compare the global live ranking oncurrent ham band conditionsbefore changing bands.
● Best DX Windows from PF40 — Australia operating area
Great-circle distance, short-path beam heading, the bands most likely open right now from PF40 to each DX region at SFI 137 / Kp 3, and a current verdict. "Open now" means a suitable band is scoring well on that path; "Try ~HH:MM" points at the next far-end grayline. Band picks and status are a planning heuristic, not a measurement.
| Target | Distance | Beam | Bands to try | Status |
|---|---|---|---|---|
| Oceania | 1,356 mi | 68° | 10m, 15m, 20m | Open now |
| East Asia / Japan | 5,248 mi | 7° | 10m, 15m, 20m | Open now |
| South Asia | 5,373 mi | 312° | 10m, 15m, 20m | Open now |
| Southern Africa | 5,731 mi | 242° | 10m, 15m, 20m | Open now |
| South America | 8,644 mi | 172° | 40m, 20m, 80m | Open now |
| Europe | 9,445 mi | 305° | 10m, 15m, 20m | Open now |
| North America | 9,951 mi | 75° | 10m, 15m, 20m | Open now |
● Band-by-Time Plan for PF40
A planning heuristic for the local day at PF40, built from sunrise 22:38 UTC, sunset 08:25 UTC, SFI 137, and Kp 3. Not a measurement — a starting point for where to listen as the day turns.
Grayline enhancement — low bands reach long distances as the terminator passes.
High bands rising with the sun; check 10m for DX.
Peak high-band window — 10m and 15m open widest.
Second grayline peak — 20m holds, then hands off to 40m.
Low bands own the darkness — 40m for DX, 80m regional.
Recent local activity
Spots touching PF40 and the adjacent squares
These are the newest 10m, 15m, and 20m reports where one side of the path sits in PF40, PF41, PE49, PF50, PF30. This gives the page unique, local context instead of a generic solar snapshot.
Top DX targets
Where this grid is reaching right now
Contest preview
Next major contest outlook
No contest event is currently loaded. For planning from PF40, start with 10m EXCELLENT, 15m EXCELLENT, 20m GOOD and keep 20m available as the safest all-around fallback.
Open contest calendarNearby grids