Grid IO73 Band Conditions — Dublin
Localized HF conditions for Maidenhead locator IO73. Coordinating at 53.50°, -5.00°. Updated with real-time telemetry from NOAA and DX cluster reports.
IO73 conditions are FAIR. Best bands: 10m, 20m, 30m, 40m, 60m. SFI: 137.
From Dublin, work the 04:19 UTC and 20:35 UTC grayline windows: probe 20m, 30m, and 40m in the 15 minutes either side while the terminator crosses IO73.
10m and 15m typically deliver the most consistent Europe outbound DX while solar flux remains healthy.
This square sits in Western/Central Europe footprint and is best used as a planning center for portable, field-day, and home-station band decisions.
- Latitude zone
- upper mid-latitude
- Local phase
- Daylight
- Aurora exposure
- low at this latitude
- Grayline
- 04:19 UTC / 20:35 UTC
- Best high band
- 10m
- Nearest city
- Dublin
● Local Band Quality Scorings
Use this local score for IO73, then compare the global live ranking oncurrent ham band conditionsbefore changing bands.
● Best DX Windows from IO73 — Dublin
Great-circle distance, short-path beam heading, the bands most likely open right now from IO73 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 | 4,229 mi | 298° | 10m, 15m, 20m | Open now |
| South Asia | 4,725 mi | 82° | 10m, 15m, 20m | Open now |
| South America | 5,672 mi | 231° | 10m, 15m, 20m | Open now |
| Southern Africa | 5,799 mi | 152° | 10m, 15m, 20m | Open now |
| East Asia / Japan | 5,869 mi | 29° | 10m, 15m, 20m | Open now |
| Oceania | 10,386 mi | 48° | 40m, 20m, 80m | Open now |
● Band-by-Time Plan for IO73
A planning heuristic for the local day at IO73, built from sunrise 04:19 UTC, sunset 20:35 UTC, 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 IO73 and the adjacent squares
These are the newest 10m, 15m, and 20m reports where one side of the path sits in IO73, IO74, IO72, IO83, IO63. 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 IO73, 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