Grid CR01 Band Conditions
Localized HF conditions for Maidenhead locator CR01. Coordinating at 81.50°, -139.00°. Updated with real-time telemetry from NOAA and DX cluster reports.
CR01 conditions are FAIR. Best bands: 10m, 20m, 30m, 40m, 60m. SFI: 137.
From the CR01 operating area, work the no sunrise — polar day and no sunset — polar day grayline windows: probe 20m, 30m, and 40m in the 15 minutes either side while the terminator crosses CR01.
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
- no sunrise — polar day / no sunset — polar day
- Best high band
- 10m
- Nearest city
- the CR01 operating area
● Local Band Quality Scorings
Use this local score for CR01, then compare the global live ranking oncurrent ham band conditionsbefore changing bands.
● Best DX Windows from CR01 — the CR01 operating area
Great-circle distance, short-path beam heading, the bands most likely open right now from CR01 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 |
|---|---|---|---|---|
| North America | 3,098 mi | 134° | 10m, 15m, 20m | Open now |
| Europe | 3,279 mi | 27° | 10m, 15m, 20m | Open now |
| East Asia / Japan | 3,691 mi | 269° | 10m, 15m, 20m | Open now |
| South Asia | 5,173 mi | 325° | 10m, 15m, 20m | Open now |
| South America | 7,152 mi | 101° | 10m, 15m, 20m | Open now |
| Oceania | 8,079 mi | 247° | 10m, 15m, 20m | Open now |
| Southern Africa | 8,581 mi | 16° | 10m, 15m, 20m | Open now |
● Band-by-Time Plan for CR01
A planning heuristic for the local day at CR01, built from sunrise no sunrise — polar day, sunset no sunset — polar day, 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 CR01 and the adjacent squares
These are the newest 10m, 15m, and 20m reports where one side of the path sits in CR01, CR02, CR00, CR11, BR91. 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 CR01, 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