What grid square is Vienna?

JN77 is the live DXRadar reference square for Vienna. The exact portable or home QTH may vary within the square, but this page tracks the center of JN77 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 JN77 right now?

JN77 is currently rated GOOD. The best bands right now are 10m, 12m, 15m, 17m, 20m, with 10m as the main band to watch first.

HomeSFI --K ---:-- UTC

Grid JN77 Band Conditions — Vienna

Localized HF conditions for Maidenhead locator JN77. Coordinating at 47.50°, 15.00°. Updated with real-time telemetry from NOAA and DX cluster reports.

JN77 conditions are GOOD. Best bands: 10m, 12m, 15m, 17m, 20m. SFI: 137.

Regional Radar

SFI

137

K-Index

2 Kp

Center Coords

47.5, 15.0

Local Phase

Night

Grayline window

Sunrise 03:25 UTC

Sunset 18:49 UTC from JN77

From Vienna, work the 03:25 UTC and 18:49 UTC grayline windows: probe 20m, 30m, and 40m in the 15 minutes either side while the terminator crosses JN77.

Best band now

10m

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

Closest operating hub

Vienna

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: low at this latitude
Grayline: 03:25 UTC / 18:49 UTC
Best high band: 10m
Nearest city: Vienna

● Local Band Quality Scorings

Use this local score for JN77, 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 JN77 — Vienna

Great-circle distance, short-path beam heading, the bands most likely open right now from JN77 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 Asia	3,863 mi	94°	40m, 20m, 80m	Open now
Southern Africa	5,124 mi	170°	40m, 20m, 80m	Open now
North America	5,182 mi	312°	10m, 15m, 20m	Open now
East Asia / Japan	5,680 mi	43°	40m, 20m, 80m	Open now
South America	6,219 mi	247°	10m, 15m, 20m	Open now
Oceania	9,775 mi	79°	40m, 20m, 80m	Open now

● Band-by-Time Plan for JN77

A planning heuristic for the local day at JN77, built from sunrise 03:25 UTC, sunset 18:49 UTC, SFI 137, and Kp 2. Not a measurement — a starting point for where to listen as the day turns.

Dawn grayline

around 03:25 UTC

40m · 30m · 20m

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

Morning

after 03:25 UTC

20m · 15m · 10m

High bands rising with the sun; check 10m for DX.

Midday

local noon

10m · 15m · 20m

Peak high-band window — 10m and 15m open widest.

Dusk grayline

around 18:49 UTC

20m · 40m

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

Night

after 18:49 UTC

40m · 80m

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

Recent local activity

Spots touching JN77 and the adjacent squares

These are the newest 10m, 15m, and 20m reports where one side of the path sits in JN77, JN78, JN76, JN87, JN67. This gives the page unique, local context instead of a generic solar snapshot.

No fresh PSKReporter paths are cached for the immediate JN77 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 JN77, start with 10m POOR, 15m POOR, 20m FAIR and keep 20m available as the safest all-around fallback.

Open contest calendar

Nearby grids