What grid square is Copenhagen?

JO66 is the live DXRadar reference square for Copenhagen. The exact portable or home QTH may vary within the square, but this page tracks the center of JO66 for planning propagation.

How do I find my grid square?

Use a Maidenhead grid lookup from your GPS coordinates or street address, then compare that grid with the nearby squares linked on this page. A 4-character grid is enough for most HF planning.

What bands are open in JO66 right now?

JO66 is currently rated POOR. The best bands right now are 10m, 20m, 30m, 40m, 60m, with 10m as the main band to watch first.

Grid JO66 Band Conditions — Copenhagen

Localized HF conditions for Maidenhead locator JO66. Coordinating at 56.50°, 13.00°. Updated with real-time telemetry from NOAA and DX cluster reports.

JO66 conditions are POOR. Best bands: 10m, 20m, 30m, 40m, 60m. SFI: 105.

Regional Radar

SFI

105

K-Index

1.33 Kp

Center Coords

56.5, 13.0

Local Phase

Night

Grayline window

Sunrise 04:53 UTC

Sunset 17:10 UTC from JO66

From Copenhagen, work the 04:53 UTC and 17:10 UTC grayline windows: probe 20m, 30m, and 40m in the 15 minutes either side while the terminator crosses JO66.

Best band now

10m

European evening operation usually shifts toward 20m and 40m once the high bands soften.

Closest operating hub

Copenhagen

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: Darkness
Aurora exposure: watch during geomagnetic storms
Grayline: 04:53 UTC / 17:10 UTC
Best high band: 10m
Nearest city: Copenhagen

● Local Band Quality Scorings

Use this local score for JO66, then compare the global live ranking oncurrent ham band conditionsbefore changing bands.

10m

POOR

15m

POOR

20m

FAIR

40m

EXCELLENT

80m

EXCELLENT

● Best DX Windows from JO66 — Copenhagen

Great-circle distance, short-path beam heading, the bands most likely open right now from JO66 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
South Asia	4,013 mi	98°	40m, 20m, 80m	Open now
North America	4,714 mi	309°	40m, 20m, 80m	Open now
East Asia / Japan	5,283 mi	43°	40m, 20m, 80m	Open now
Southern Africa	5,751 mi	168°	40m, 20m, 80m	Open now
South America	6,386 mi	246°	40m, 20m, 80m	Open now
Oceania	9,676 mi	67°	40m, 20m, 80m	Open now

● Band-by-Time Plan for JO66

A planning heuristic for the local day at JO66, built from sunrise 04:53 UTC, sunset 17:10 UTC, SFI 105, and Kp 1.33. Not a measurement — a starting point for where to listen as the day turns.

Dawn grayline

around 04:53 UTC

40m · 30m · 20m

Grayline enhancement — low bands reach long distances as the terminator passes.

Morning

after 04:53 UTC

20m · 15m

Modest SFI — 20m is the daytime workhorse here.

Midday

local noon

15m · 20m

20m and 15m carry the daytime load at this SFI.

Dusk grayline

around 17:10 UTC

20m · 40m

Second grayline peak — 20m holds, then hands off to 40m.

Night

after 17:10 UTC

40m · 80m

Low bands own the darkness — 40m for DX, 80m regional.

Recent local activity

Spots touching JO66 and the adjacent squares

These are the newest 10m, 15m, and 20m reports where one side of the path sits in JO66, JO67, JO65, JO76, JO56. This gives the page unique, local context instead of a generic solar snapshot.

No fresh PSKReporter paths are cached for the immediate JO66 footprint right now. That usually means you should widen the search to the nearest regional hubs below or fall back to 20m/40m for the next operating window.

Top DX targets

Where this grid is reaching right now

No outbound targets were strong enough to rank from the current cache. Check back after the next PSKReporter refresh or switch to the regional grids below.

Contest preview

Next major contest outlook

No contest event is currently loaded. For planning from JO66, start with 10m POOR, 15m POOR, 20m FAIR and keep 20m available as the safest all-around fallback.

Open contest calendar

Nearby grids