WB9FIU — 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: EM79

Receiver-side FT8 activity involving WB9FIU, decoded by SO8OO in southeastern Poland. 109 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-20 and 2026-09-23.

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 109 FT8 messages attributed to WB9FIU as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (69%), followed by 20 m (31%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

109
Messages attributed
9
UTC dates decoded
20
Active 15-min windows
-14 dB
Estimated median S/N

Bands

40m · 75 20m · 34
First attributed message: 2026-06-20
Last attributed message: 2026-09-23 01:19 UTC

Observed FT8 message patterns

Attributed sample
109 messages
Active dates
9 UTC dates
Estimated median S/N
-14 dB
Estimated 10th-90th percentile
-18 to -7 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 41, moderate (-15 to -9 dB) 54, strong (≥ -8 dB) 14.

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 WB9FIU in decoded directed-looking exchanges:

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to WB9FIU

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
EM79 · 85 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,775 km (approx.)
Last such locator decoded
2026-09-23 01:19 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 UTCBandWB9FIU S/NCounterpartCounterpart S/NMsgsCapture
11-07 04:11 60m - / - IW2EQR -10 / - 2 Partial capture
11-07 03:58 60m - / -13 EA3JW -8 / - 4 ✓ Closing fragment
11-07 03:55 60m - / - F5RRS 0 / - 4 Partial capture
11-07 03:52 60m - / -19 OM2DX -9 / - 2 Partial capture
11-07 03:49 60m - / -6 F5BRF -16 / - 2 ✓ Closing fragment
11-07 03:47 60m - / -18 EA3NE -11 / - 3 Partial capture
11-01 01:03 40m - / - CT7BLY -6 / - 2 Partial capture
10-31 02:12 40m - / - F5PBG 0 / - 2 Partial capture
10-26 00:35 40m - / -6 G3TKT -16 / - 3 ✓ Closing fragment
10-26 00:35 40m - / - TA2EE -22 / - 2 Partial capture
10-26 00:31 40m - / -4 MW0USK +3 / - 4 ✓ Closing fragment
10-21 14:53 10m - / -13 CN8WK +8 / - 2 ✓ Closing fragment
10-19 05:18 80m - / -4 EA8DO -14 / - 2 ✓ Closing fragment
10-14 03:19 40m - / - F4BJN -16 / - 2 Partial capture
10-14 03:17 40m - / - F8MRQ +2 / - 4 Partial capture
10-04 01:38 40m - / -15 EX7CQ -13 / - 11 ✓ Closing fragment
09-26 00:13 40m - / - IU8RFW -17 / - 5 Partial capture
09-23 01:21 40m - / - F5RRS -24 / - 3 Partial capture
09-23 01:17 40m -14 / -5 SV5AZK -13 / - 11 Partial capture
09-23 01:14 40m -15 / -18 A99AA -12 / - 4 ✓ Closing observed
09-23 01:08 40m -16 / -13 8Q7PR -12 / - 7 ✓ Closing observed
09-23 01:06 40m -16 / - HA1BF - / 0 3 ✓ Closing fragment
09-22 02:16 40m -10 / - A61DD - / - 2 Partial capture
09-22 02:13 40m -12 / - A61DD - / - 2 Partial capture
09-22 02:02 40m -13 / - A61DD - / - 7 Partial capture
09-22 00:24 40m - / - PD0DDA -5 / - 12 Partial capture
09-22 00:22 40m -16 / -14 A61DD -5 / - 18 Partial capture
09-16 03:07 40m - / - UT2AU -4 / - 2 Partial capture
09-16 03:04 40m -21 / -11 9K2WA -14 / -15 4 Partial capture
09-15 02:49 40m -18 / -6 MW7RHR -5 / -16 10 ✓ Full exchange observed
09-15 02:46 40m - / - RA6ABC +15 / - 3 Partial capture
09-15 02:43 40m -12 / - OM5CM - / -15 4 ✓ Closing fragment
09-10 02:17 40m - / - F5PBG +2 / - 4 Partial capture
09-06 01:57 40m - / - F6FHZ -8 / - 2 Partial capture
09-06 01:56 40m -18 / -8 HA7TM -11 / -5 3 ✓ Full exchange observed
09-06 01:53 40m -20 / - TT1GD - / -23 2 Partial capture
09-02 00:18 40m - / - G5TV -8 / - 6 Partial capture
08-25 01:39 40m -8 / -15 UA3DPM +3 / -19 6 ✓ Full exchange observed
08-25 01:35 40m -6 / +7 LA4GHA -5 / -19 7 ✓ Full exchange observed
08-24 23:40 40m - / -20 IU0NAD -6 / - 3 Partial capture
08-24 23:30 40m - / - IU0NAD -5 / - 3 Partial capture
08-24 23:28 40m - / -12 LZ2VQ 0 / - 3 ✓ Closing fragment
08-24 23:27 40m - / -16 IW2DNI -2 / - 8 Partial capture
08-24 23:26 40m - / - F4BYA +2 / - 4 Partial capture
08-24 23:26 40m - / -15 PC2J +4 / - 3 ✓ Closing fragment
08-24 03:00 40m -16 / - TA3NK - / - 19 Partial capture
08-24 02:59 40m -11 / - EK1KE - / - 2 Partial capture
08-24 02:53 40m -12 / - EA5HM -12 / -22 7 Partial capture
08-22 00:20 20m -13 / - 8Z1IT - / -7 3 ✓ Closing fragment
08-21 02:07 20m - / -11 A41KB -16 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

60m 
UTC    dB Audio  Message
034800 -11 1862  WB9FIU EA3NE RRR
034900 -15 1201  WB9FIU F5BRF -06 (x2)
035200  -9 2731  WB9FIU OM2DX -19 (x2)
035500  +1 1970  WB9FIU F5RRS JN36 (x4)
035845  -9 2202  WB9FIU EA3JW JN11 (x4)
041130  -7  924  WB9FIU IW2EQR JN45 (x2)
40m 
UTC    dB Audio  Message
024300  -6 2986  WB9FIU A41HA -14
003115  +4 1197  WB9FIU MW0USK -04 (x4)
003515 -22 1921  WB9FIU TA2EE KM69
003515 -15 2184  WB9FIU G3TKT IO92 (x3)
003715 -23 1922  WB9FIU TA2EE KM69
020430 -18 1141  WB9FIU PS8RV GI84
021200  +0 1239  WB9FIU F5PBG IN78 (x2)
010330  -6 1991  WB9FIU CT7BLY IM67 (x2)
10m 
UTC    dB Audio  Message
150930 -15 2106  WB9FIU CR7CDR IM58
145345 +10 2601  WB9FIU CN8WK -13 (x2)
80m 
UTC    dB Audio  Message
012030 -21 1167  WB9FIU D2UY -17 (x2)
051845 -13 1114  WB9FIU EA8DO -04 (x2)
20m 
UTC    dB Audio  Message
020700 -16 2213  WB9FIU A41KB -11 (x2)
002030 -13  912  8Z1IT WB9FIU EM79 (x3)

Decoder S/N history by band

Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.

CW

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

Explore CW reception at SO8OO

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