WF3H — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: EL09

Receiver-side FT8 activity involving WF3H, decoded by SO8OO in southeastern Poland. 93 FT8 messages attributed to this token as transmitter, on 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-06-18.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 93 FT8 messages attributed to WF3H as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Most decodes (100%) fell within the six-hour window 02:00-08:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

93
Messages attributed
3
UTC dates decoded
16
Active 15-min windows
-9 dB
Estimated median S/N

Bands

First attributed message: 2026-06-12
Last attributed message: 2026-06-18 04:51 UTC

Observed FT8 message patterns

Attributed sample
93 messages
Active dates
3 UTC dates
Estimated median S/N
-9 dB
Estimated 10th-90th percentile
-14 to -6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 48, strong (≥ -8 dB) 38.

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with WF3H in decoded directed-looking exchanges:

Most frequent locator attributed to WF3H

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator
EL09 · 14 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
9,433 km (approx.)
Last such locator decoded
2026-06-18 04:44 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

Observed FT8 exchanges

S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.

Time UTCBandWF3H S/NCounterpartCounterpart S/NMsgsCapture
09-13 20:16 40m - / - OZ/DG4BRT -11 / - 2 Partial capture
08-27 03:36 40m - / -24 DH1KJ +15 / - 4 ✓ Closing fragment
08-24 01:38 20m - / -2 IZ5UFW 0 / - 3 ✓ Closing fragment
08-24 01:27 20m - / - 5B4AMX -1 / - 3 ✓ Closing fragment
08-21 04:24 60m - / -21 HB9ALO -5 / - 4 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

40m
UTC    dB Audio  Message
033600 +16  542  WF3H DH1KJ -24 (x4)
201600 -16  280  WF3H YO4NF +01
201600 -11  361  <WF3H> OZ/DG4BRT (x2)
20m
UTC    dB Audio  Message
012400  -1 1847  WF3H 5B4AMX -02 (x4)
013800  -4  773  WF3H IZ5UFW 73 (x3)
60m
UTC    dB Audio  Message
042430  -2  941  WF3H HB9ALO JN45 (x4)

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee