Grid DO81 Band Conditions — Canada
Localized HF conditions for Maidenhead locator DO81. Coordinating at 51.50°, -103.00°. Updated with real-time telemetry from NOAA and DX cluster reports.
DO81 conditions are FAIR. Best bands: 10m, 20m, 30m, 40m, 60m. SFI: 137.
From Canada operating area, work the 11:01 UTC and 02:57 UTC grayline windows: probe 20m, 30m, and 40m in the 15 minutes either side while the terminator crosses DO81.
10m and 20m are the main daytime rate bands from this part of North America. Watch 10m first if SFI stays elevated.
This square sits in Canada footprint and is best used as a planning center for portable, field-day, and home-station band decisions.
- Latitude zone
- upper mid-latitude
- Local phase
- Daylight
- Aurora exposure
- low at this latitude
- Grayline
- 11:01 UTC / 02:57 UTC
- Best high band
- 10m
- Nearest city
- Canada operating area
● Local Band Quality Scorings
Use this local score for DO81, then compare the global live ranking oncurrent ham band conditionsbefore changing bands.
● Best DX Windows from DO81 — Canada operating area
Great-circle distance, short-path beam heading, the bands most likely open right now from DO81 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 |
|---|---|---|---|---|
| Europe | 4,401 mi | 41° | 10m, 15m, 20m | Open now |
| South America | 5,330 mi | 136° | 10m, 15m, 20m | Open now |
| East Asia / Japan | 5,357 mi | 314° | 10m, 15m, 20m | Open now |
| South Asia | 7,358 mi | 359° | 10m, 15m, 20m | Open now |
| Oceania | 8,519 mi | 262° | 10m, 15m, 20m | Open now |
| Southern Africa | 9,262 mi | 76° | 40m, 20m, 80m | Open now |
● Band-by-Time Plan for DO81
A planning heuristic for the local day at DO81, built from sunrise 11:01 UTC, sunset 02:57 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 DO81 and the adjacent squares
These are the newest 10m, 15m, and 20m reports where one side of the path sits in DO81, DO82, DO80, DO91, DO71. 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
Worked All Europe - SSB starts Sat, 12 Sep 2026 00:00:00 GMT. Current forecast from DO81: 10m EXCELLENT, 15m EXCELLENT, 20m GOOD. Current solar conditions (SFI 137, K 3) favor 10m, 15m, 20m for this contest weekend.
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