Grid DM19 Band Conditions — USA
Localized HF conditions for Maidenhead locator DM19. Coordinating at 39.50°, -117.00°. Updated with real-time telemetry from NOAA and DX cluster reports.
DM19 conditions are POOR. Best bands: 10m, 20m, 30m, 40m, 60m. SFI: 105.
From USA operating area, work the 13:35 UTC and 01:48 UTC grayline windows: probe 20m, 30m, and 40m in the 15 minutes either side while the terminator crosses DM19.
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
- 13:35 UTC / 01:48 UTC
- Best high band
- 10m
- Nearest city
- USA operating area
● Local Band Quality Scorings
Use this local score for DM19, then compare the global live ranking oncurrent ham band conditionsbefore changing bands.
● Best DX Windows from DM19 — USA operating area
Great-circle distance, short-path beam heading, the bands most likely open right now from DM19 to each DX region at SFI 105 / Kp 1.33, 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 | 1,015 mi | 86° | 40m, 80m, 20m | Open now |
| South America | 5,343 mi | 122° | 40m, 20m, 80m | Open now |
| East Asia / Japan | 5,372 mi | 307° | 10m, 15m, 20m | Open now |
| Europe | 5,467 mi | 32° | 40m, 20m, 80m | Open now |
| Oceania | 7,647 mi | 248° | 10m, 15m, 20m | Open now |
| South Asia | 8,079 mi | 344° | 10m, 15m, 20m | Open now |
| Southern Africa | 10,114 mi | 78° | 40m, 20m, 80m | Open now |
● Band-by-Time Plan for DM19
A planning heuristic for the local day at DM19, built from sunrise 13:35 UTC, sunset 01:48 UTC, SFI 105, and Kp 1.33. 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.
Modest SFI — 20m is the daytime workhorse here.
20m and 15m carry the daytime load at this SFI.
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 DM19 and the adjacent squares
These are the newest 10m, 15m, and 20m reports where one side of the path sits in DM19, DN10, DM18, DM29, DM09. 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 DM19, start with 10m POOR, 15m POOR, 20m FAIR and keep 20m available as the safest all-around fallback.
Open contest calendarNearby grids