Grid FN21 Band Conditions — New York
Localized HF conditions for Maidenhead locator FN21. Coordinating at 41.50°, -75.00°. Updated with real-time telemetry from NOAA and DX cluster reports.
FN21 conditions are GOOD. Best bands: 10m, 12m, 15m, 17m, 20m. SFI: 137.
From New York, work the 09:45 UTC and 00:29 UTC grayline windows: probe 20m, 30m, and 40m in the 15 minutes either side while the terminator crosses FN21.
After sunset, 20m transitions and 40m becomes the reliable DX fallback from this part of North America.
This square sits in USA footprint and is best used as a planning center for portable, field-day, and home-station band decisions.
- Latitude zone
- mid-latitude
- Local phase
- Darkness
- Aurora exposure
- low at this latitude
- Grayline
- 09:45 UTC / 00:29 UTC
- Best high band
- 10m
- Nearest city
- New York
● Local Band Quality Scorings
Use this local score for FN21, then compare the global live ranking oncurrent ham band conditionsbefore changing bands.
● Best DX Windows from FN21 — New York
Great-circle distance, short-path beam heading, the bands most likely open right now from FN21 to each DX region at SFI 137 / Kp 2, 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 | 1,221 mi | 269° | 40m, 80m, 20m | Open now |
| Europe | 3,915 mi | 50° | 10m, 15m, 20m | Open now |
| South America | 4,052 mi | 161° | 40m, 20m, 80m | Open now |
| East Asia / Japan | 6,689 mi | 334° | 40m, 20m, 80m | Open now |
| South Asia | 7,721 mi | 27° | 10m, 15m, 20m | Open now |
| Southern Africa | 7,930 mi | 104° | 10m, 15m, 20m | Open now |
| Oceania | 9,824 mi | 273° | 40m, 20m, 80m | Open now |
● Band-by-Time Plan for FN21
A planning heuristic for the local day at FN21, built from sunrise 09:45 UTC, sunset 00:29 UTC, SFI 137, and Kp 2. 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 FN21 and the adjacent squares
These are the newest 10m, 15m, and 20m reports where one side of the path sits in FN21, FN22, FN20, FN31, FN11. 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 FN21: 10m POOR, 15m POOR, 20m FAIR. Current solar conditions (SFI 137, K 2) favor 10m, 15m, 20m for this contest weekend.
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