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SFI --K ---:-- UTC

Grid JP90 Band Conditions — Stockholm

Localized HF conditions for Maidenhead locator JP90. Coordinating at 60.50°, 19.00°. Updated with real-time telemetry from NOAA and DX cluster reports.

JP90 conditions are POOR. Best bands: 10m, 20m, 30m, 40m, 60m. SFI: 105.

Regional Radar
SFI
105
K-Index
1.33 Kp
Center Coords
60.5, 19.0
Local Phase
Night
Grayline window
Sunrise 04:28 UTC
Sunset 16:47 UTC from JP90

From Stockholm, work the 04:28 UTC and 16:47 UTC grayline windows: probe 20m, 30m, and 40m in the 15 minutes either side while the terminator crosses JP90.

Best band now
10m

Night operation should keep 20m on watch and move to 40m as the path darkens.

Closest operating hub
Stockholm

This square sits in a mixed-region footprint and is best used as a planning center for portable, field-day, and home-station band decisions.

Latitude zone
high-latitude
Local phase
Darkness
Aurora exposure
watch during geomagnetic storms
Grayline
04:28 UTC / 16:47 UTC
Best high band
10m
Nearest city
Stockholm

Local Band Quality Scorings

Use this local score for JP90, 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 JP90 — Stockholm

Great-circle distance, short-path beam heading, the bands most likely open right now from JP90 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.

TargetDistanceBeamBands to tryStatus
South Asia3,860 mi106°40m, 20m, 80mOpen now
North America4,701 mi312°40m, 20m, 80mOpen now
East Asia / Japan4,935 mi48°40m, 20m, 80mOpen now
Southern Africa5,990 mi174°40m, 20m, 80mOpen now
South America6,688 mi251°40m, 20m, 80mOpen now
Oceania9,372 mi69°10m, 15m, 20mOpen now

Band-by-Time Plan for JP90

A planning heuristic for the local day at JP90, built from sunrise 04:28 UTC, sunset 16:47 UTC, SFI 105, and Kp 1.33. Not a measurement — a starting point for where to listen as the day turns.

Dawn grayline
around 04:28 UTC
40m · 30m · 20m

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

Morning
after 04:28 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 16:47 UTC
20m · 40m

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

Night
after 16:47 UTC
40m · 80m

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

Recent local activity

Spots touching JP90 and the adjacent squares

These are the newest 10m, 15m, and 20m reports where one side of the path sits in JP90, JP91, JO99, KP00, JP80. This gives the page unique, local context instead of a generic solar snapshot.

No fresh PSKReporter paths are cached for the immediate JP90 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 JP90, start with 10m POOR, 15m POOR, 20m FAIR and keep 20m available as the safest all-around fallback.

Open contest calendar