Grid PC81 Band Conditions
Localized HF conditions for Maidenhead locator PC81. Coordinating at -68.50°, 137.00°. Updated with real-time telemetry from NOAA and DX cluster reports.
PC81 conditions are FAIR. Best bands: 10m, 20m, 30m, 40m, 60m. SFI: 137.
From the PC81 operating area, work the 01:16 UTC and 04:42 UTC grayline windows: probe 20m, 30m, and 40m in the 15 minutes either side while the terminator crosses PC81.
10m is the headline band right now, with 20m as the dependable fallback if conditions soften.
This square sits in a mixed-region footprint and is best used as a planning center for portable, field-day, and home-station band decisions.
- Latitude zone
- high-latitude
- Local phase
- Daylight
- Aurora exposure
- watch during geomagnetic storms
- Grayline
- 01:16 UTC / 04:42 UTC
- Best high band
- 10m
- Nearest city
- the PC81 operating area
● Local Band Quality Scorings
Use this local score for PC81, then compare the global live ranking oncurrent ham band conditionsbefore changing bands.
● Best DX Windows from PC81 — the PC81 operating area
Great-circle distance, short-path beam heading, the bands most likely open right now from PC81 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 | 2,711 mi | 18° | 10m, 15m, 20m | Open now |
| Southern Africa | 5,054 mi | 241° | 10m, 15m, 20m | Open now |
| South America | 6,620 mi | 165° | 40m, 20m, 80m | Open now |
| South Asia | 6,909 mi | 306° | 10m, 15m, 20m | Open now |
| East Asia / Japan | 7,221 mi | 1° | 10m, 15m, 20m | Open now |
| North America | 9,569 mi | 106° | 40m, 20m, 80m | Open now |
| Europe | 10,275 mi | 261° | 10m, 15m, 20m | Open now |
● Band-by-Time Plan for PC81
A planning heuristic for the local day at PC81, built from sunrise 01:16 UTC, sunset 04:42 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 PC81 and the adjacent squares
These are the newest 10m, 15m, and 20m reports where one side of the path sits in PC81, PC82, PC80, PC91, PC71. 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 PC81, start with 10m EXCELLENT, 15m EXCELLENT, 20m GOOD and keep 20m available as the safest all-around fallback.
Open contest calendarNearby grids
Four adjacent squares for internal path checking
Regional hub links