Grid DM79 Band Conditions — Denver
Localized HF conditions for Maidenhead locator DM79. Coordinating at 39.50°, -105.00°. Updated with real-time telemetry from NOAA and DX cluster reports.
DM79 conditions are GOOD. Best bands: 10m, 12m, 15m, 17m, 20m. SFI: 137.
From Southern California, work the 11:51 UTC and 02:23 UTC grayline windows: probe 20m, 30m, and 40m in the 15 minutes either side while the terminator crosses DM79.
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
- 11:51 UTC / 02:23 UTC
- Best high band
- 10m
- Nearest city
- Southern California
● Local Band Quality Scorings
Use this local score for DM79, then compare the global live ranking oncurrent ham band conditionsbefore changing bands.
● Best DX Windows from DM79 — Southern California
Great-circle distance, short-path beam heading, the bands most likely open right now from DM79 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 |
|---|---|---|---|---|
| South America | 4,830 mi | 131° | 40m, 20m, 80m | Open now |
| Europe | 5,105 mi | 37° | 10m, 15m, 20m | Open now |
| East Asia / Japan | 5,860 mi | 314° | 40m, 20m, 80m | Open now |
| South Asia | 8,183 mi | 357° | 40m, 20m, 80m | Open now |
| Oceania | 8,250 mi | 254° | 40m, 20m, 80m | Open now |
| Southern Africa | 9,480 mi | 87° | 10m, 15m, 20m | Open now |
● Band-by-Time Plan for DM79
A planning heuristic for the local day at DM79, built from sunrise 11:51 UTC, sunset 02:23 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 DM79 and the adjacent squares
These are the newest 10m, 15m, and 20m reports where one side of the path sits in DM79, DN70, DM78, DM89, DM69. 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 DM79, start with 10m POOR, 15m POOR, 20m FAIR and keep 20m available as the safest all-around fallback.
Open contest calendarNearby grids
Four adjacent squares for internal path checking
Regional hub links