Grid EB21 Band Conditions
Localized HF conditions for Maidenhead locator EB21. Coordinating at -78.50°, -95.00°. Updated with real-time telemetry from NOAA and DX cluster reports.
EB21 conditions are FAIR. Best bands: 10m, 20m, 30m, 40m, 60m. SFI: 121.
From the EB21 operating area, work the 11:54 UTC and 00:32 UTC grayline windows: probe 20m, 30m, and 40m in the 15 minutes either side while the terminator crosses EB21.
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
- 11:54 UTC / 00:32 UTC
- Best high band
- 10m
- Nearest city
- the EB21 operating area
● Local Band Quality Scorings
Use this local score for EB21, then compare the global live ranking oncurrent ham band conditionsbefore changing bands.
● Best DX Windows from EB21 — the EB21 operating area
Great-circle distance, short-path beam heading, the bands most likely open right now from EB21 to each DX region at SFI 121 / Kp 1.67, 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 | 4,516 mi | 240° | 10m, 15m, 20m | Open now |
| South America | 4,557 mi | 40° | 40m, 20m, 80m | Open now |
| Southern Africa | 4,857 mi | 125° | 40m, 20m, 80m | Open now |
| North America | 8,120 mi | 357° | 10m, 15m, 20m | Open now |
| South Asia | 8,527 mi | 172° | 40m, 20m, 80m | Open now |
| East Asia / Japan | 9,141 mi | 241° | 10m, 15m, 20m | Open now |
| Europe | 9,785 mi | 91° | 40m, 20m, 80m | Open now |
● Band-by-Time Plan for EB21
A planning heuristic for the local day at EB21, built from sunrise 11:54 UTC, sunset 00:32 UTC, SFI 121, and Kp 1.67. 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 EB21 and the adjacent squares
These are the newest 10m, 15m, and 20m reports where one side of the path sits in EB21, EB22, EB20, EB31, EB11. 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
CQ World Wide DX Contest - SSB starts Sat, 24 Oct 2026 00:00:00 GMT. Current forecast from EB21: 10m EXCELLENT, 15m EXCELLENT, 20m GOOD. Current solar conditions (SFI 121, K 1.67) favor 10m, 15m, 20m for this contest weekend.
Open contest calendarNearby grids
Four adjacent squares for internal path checking
Regional hub links