WD4GBW — 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: FM17

Receiver-side FT8 activity involving WD4GBW, decoded by SO8OO in southeastern Poland. 76 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 16 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-09-21.

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 76 FT8 messages attributed to WD4GBW as the transmitting token by decoded message structure across 16 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (87%), followed by 40 m (13%). 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 -9 dB.

Overview

76
Messages attributed
16
UTC dates decoded
29
Active 15-min windows
-9 dB
Estimated median S/N

Bands

40m · 10 20m · 66
First attributed message: 2026-06-13
Last attributed message: 2026-09-21 22:48 UTC

Observed FT8 message patterns

Attributed sample
76 messages
Active dates
16 UTC dates
Estimated median S/N
-9 dB
Estimated 10th-90th percentile
-18 to -3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 15, moderate (-15 to -9 dB) 25, strong (≥ -8 dB) 36.

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 WD4GBW 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 WD4GBW

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
FM17 · 42 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,470 km (approx.)
Last such locator decoded
2026-09-07 00:17 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 UTCBandWD4GBW S/NCounterpartCounterpart S/NMsgsCapture
11-03 22:51 40m - / -13 LZ1ZF -21 / - 3 ✓ Closing fragment
11-03 22:45 40m - / -11 G0HSP 0 / - 2 Partial capture
10-26 22:21 40m - / -5 GU7DAI +8 / - 2 ✓ Closing fragment
10-23 23:29 40m - / -10 EA8AE -12 / - 2 ✓ Closing fragment
10-16 21:56 40m - / -14 OE3MZC +7 / - 3 ✓ Closing fragment
10-14 23:05 40m - / -7 G4IFX +10 / - 2 ✓ Closing fragment
09-21 22:59 40m - / -16 EA1FKI -18 / - 2 ✓ Closing fragment
09-21 22:43 40m -13 / -13 UR1CCT -13 / - 2 ✓ Closing observed
09-21 22:42 40m - / -11 IZ5WTV +6 / - 2 ✓ Closing fragment
09-20 22:02 40m - / -19 PD2TX +9 / - 3 ✓ Closing fragment
09-20 21:54 40m - / -18 G8KHF -1 / - 3 ✓ Closing fragment
09-11 23:14 40m -14 / - G4DZE - / -14 2 ✓ Closing fragment
09-10 23:00 40m - / -11 WB8CQV +2 / - 2 ✓ Closing fragment
09-09 23:03 40m - / -6 F5MSE +6 / - 2 ✓ Closing fragment
09-09 22:45 40m - / -16 IW9HPG +13 / - 3 ✓ Closing fragment
09-09 22:42 40m - / -2 EA4HPY -3 / - 2 ✓ Closing fragment
09-09 21:27 40m - / -25 EA1KCU -3 / - 2 ✓ Closing fragment
09-07 00:19 40m - / -5 IZ4IRO +9 / - 3 ✓ Closing fragment
09-07 00:17 40m -20 / - IW2CAK/2 - / -13 2 Partial capture
09-06 23:42 40m - / -13 CR7BRV -8 / - 2 ✓ Closing fragment
09-06 23:41 40m -14 / -10 OO0O -10 / - 2 Partial capture
09-04 00:04 40m - / -14 ON1JP -14 / - 2 Partial capture
08-28 21:32 20m -8 / - GM0HTT - / -10 2 Partial capture
08-28 20:48 20m - / - MI7RDK +7 / - 2 Partial capture
08-28 20:47 20m - / +3 S58Z -1 / - 2 ✓ Closing fragment
08-28 10:58 20m - / -9 LA6RJA +6 / - 2 ✓ Closing fragment
08-26 21:03 20m -4 / - GM0DYU -2 / -14 4 ✓ Closing observed
08-26 20:38 20m -18 / - PD0MNO - / -19 2 Partial capture
08-26 20:32 20m -14 / -8 DL7GAL -2 / -25 5 ✓ Full exchange observed
08-26 20:31 20m -17 / - EA8UP - / -6 2 ✓ Closing fragment
08-25 22:51 20m -6 / - SP1TJ - / -7 3 ✓ Closing fragment
08-25 22:50 20m -7 / - TJ1GD - / - 3 Partial capture
08-25 22:11 20m -12 / - SP1TJ - / - 2 Partial capture
08-25 22:03 20m -13 / - TA1CQ - / - 3 Partial capture
08-24 23:39 20m -8 / - TJ1GD - / - 2 Partial capture
08-24 23:22 20m -6 / - TJ1GD - / - 2 Partial capture
08-22 23:01 40m - / -17 HB9HSJ +6 / - 2 ✓ Closing fragment
08-21 23:19 20m -18 / -6 9K2GR +11 / - 5 ✓ Closing observed
08-21 22:41 20m -14 / -15 PE1EBT -2 / -12 5 ✓ Full exchange observed
08-21 21:50 20m -11 / -6 DL3EBJ +10 / - 3 ✓ Closing observed
08-21 21:38 20m - / -18 HZ1SK -12 / - 2 ✓ Closing fragment
08-20 22:22 20m -8 / - TF3JB - / - 2 ✓ Closing fragment
08-20 22:06 20m -6 / - 9A4AA - / - 4 Partial capture
08-20 21:44 20m -16 / -7 DH0YAH -4 / - 3 ✓ Closing observed
08-15 12:40 20m - / +1 GB2TNL -11 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
230530  +9 2794  WD4GBW G4IFX RR73
215645  +3 1085  WD4GBW OE3MZC -14 (x3)
232915 -12 1315  WD4GBW EA8AE -10 (x2)
003215 -20 1339  WD4GBW CT2HUU -13
222100 +10  352  WD4GBW GU7DAI -05 (x2)
204215  -5 2644  WD4GBW DJ1SL RR73
224545  +0 2723  WD4GBW G0HSP -11 (x2)
225115 -24 1762  WD4GBW LZ1ZF -13 (x3)
80m 
UTC    dB Audio  Message
204900 -12 1308  WD4GBW DL7UHD JO62
20m 
UTC    dB Audio  Message
203830 -21 2208  PD0MNO WD4GBW FM17 (x2)
210300  -8 2978  GM0DYU WD4GBW FM17 (x2)
210345  -2 2980  WD4GBW GM0DYU RR73
210400  -3 2979  GM0DYU WD4GBW 73
210715 -12 2181  G1CEC WD4GBW FM17
105815  +4  524  WD4GBW LA6RJA -09 (x2)
204715  +2 3042  WD4GBW S58Z +03 (x2)
204845 +10  284  WD4GBW MI7RDK IO74 (x2)
213230  -9 2750  GM0HTT WD4GBW FM17 (x2)

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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