W3DIY — 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: FM19

Receiver-side FT8 activity involving W3DIY, decoded by SO8OO in southeastern Poland. 373 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 66 UTC dates in the available aggregate history. Observed between 2026-06-15 and 2026-10-19.

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 373 FT8 messages attributed to W3DIY as the transmitting token by decoded message structure across 66 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (38%), followed by 40 m (35%) and 20 m (27%). Most decodes (96%) fell within the six-hour window 22:00-04:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14.8 dB.

Overview

373
Messages attributed
66
UTC dates decoded
133
Active 15-min windows
-14.8 dB
Estimated median S/N

Bands

First attributed message: 2026-06-15
Last attributed message: 2026-10-19 01:23 UTC

Observed FT8 message patterns

Attributed sample
373 messages
Active dates
66 UTC dates
Estimated median S/N
-14.8 dB
Estimated 10th-90th percentile
-23 to -2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 165, moderate (-15 to -9 dB) 134, strong (≥ -8 dB) 74.

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.

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 W3DIY

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
FM19 · 137 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,310 km (approx.)
Last such locator decoded
2026-10-19 01:23 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 UTCBandW3DIY S/NCounterpartCounterpart S/NMsgsCapture
10-20 21:54 40m - / -14 LB7ZG -9 / - 3 ✓ Closing fragment
10-20 21:53 40m - / -16 EA6TU -20 / - 2 ✓ Closing fragment
10-13 01:33 40m -18 / - OD5XX - / - 2 Partial capture
10-11 01:58 80m - / - DG5RN +6 / - 2 Partial capture
10-11 01:56 80m - / - SV1BLD +3 / - 3 Partial capture
10-11 01:56 80m -14 / -23 UR4SXA -4 / +2 4 ✓ Full exchange observed
10-11 01:19 80m -16 / -9 IZ5NRF +7 / -9 4 ✓ Full exchange observed
10-10 13:58 10m - / -13 4Z5AV -2 / - 2 ✓ Closing fragment
10-06 02:14 80m - / -17 4Z4MU -16 / - 2 Partial capture
10-06 02:14 80m - / - DK8HC +3 / - 2 Partial capture
10-06 02:13 80m - / -22 G6PWS -1 / - 3 ✓ Closing fragment
10-06 02:11 80m -14 / -9 S51TN +10 / -16 6 ✓ Full exchange observed
10-06 02:11 80m - / -19 UX1UA +8 / - 2 Partial capture
10-06 02:10 80m -16 / - N1KSY - / - 2 ✓ Closing fragment
10-06 02:04 80m -12 / - HI3JCC - / -7 2 Partial capture
10-06 01:56 40m -19 / - 3B8FA - / -14 3 ✓ Closing fragment
10-06 01:00 40m -20 / -10 IQ0AAX -14 / -16 4 ✓ Full exchange observed
10-06 00:56 80m - / -6 LZ4TL +10 / - 4 Partial capture
10-05 22:14 40m -14 / - PB2A -10 / - 2 ✓ Closing observed
10-05 22:13 40m -17 / +5 M0OVG -6 / - 3 ✓ Closing observed
10-04 22:36 80m -17 / - RO2E/M - / - 2 Partial capture
10-01 23:54 80m -21 / -6 LY5A +17 / +1 5 ✓ Full exchange observed
09-30 02:17 80m -17 / -19 UT7EV +4 / - 2 Partial capture
09-30 02:12 80m - / - DK1MCS +2 / - 4 Partial capture
09-30 02:09 80m -12 / - DL/AD2LX - / -18 2 Partial capture
09-30 01:38 40m - / -13 OD5ZZ -14 / - 2 Partial capture
09-30 01:36 40m - / - R6DZL +1 / - 2 Partial capture
09-29 00:19 80m - / - SP1MGM +6 / - 2 Partial capture
09-28 01:44 80m -16 / - OX3AH - / - 2 ✓ Closing fragment
09-27 02:10 80m - / -12 HA1RJ +20 / - 8 Partial capture
09-25 02:46 80m -8 / - SV9MBH - / -17 2 Partial capture
09-25 02:46 80m - / - G6PWS -1 / - 9 Partial capture
09-25 02:45 80m -9 / -9 DO6MFD -8 / -13 4 ✓ Full exchange observed
09-21 23:06 80m -22 / - KC1JOL - / -6 3 ✓ Closing fragment
09-18 03:41 40m - / - R6DVS -7 / - 4 Partial capture
09-18 03:40 40m - / -10 MI0OBC -9 / - 2 Partial capture
09-18 03:40 40m - / +2 US1VM +16 / - 6 Partial capture
09-18 03:39 40m -5 / - XE2SSB - / -7 3 ✓ Closing fragment
09-18 03:30 80m - / - RD7O -4 / - 2 Partial capture
09-18 03:29 80m - / - SP7IIT +15 / - 4 Partial capture
09-18 03:28 80m -24 / - SP100PKP 0 / -14 2 ✓ Closing observed
09-18 03:28 80m - / -12 UT7QF +12 / - 4 ✓ Closing fragment
09-18 03:23 80m - / - RD7O 0 / - 2 Partial capture
09-17 02:33 40m -12 / +6 N4DWD -22 / - 3 ✓ Full exchange observed
09-17 02:32 40m -12 / - YN8ZAC - / -3 2 ✓ Closing fragment
09-17 02:14 40m -14 / - W3GO - / +5 2 ✓ Closing fragment
09-15 23:23 80m -21 / -23 LZ1QZ +8 / -1 5 ✓ Full exchange observed
09-15 23:23 80m -20 / - EA8DS - / -13 2 ✓ Closing fragment
09-13 23:51 40m -10 / - EA1Y -22 / +1 4 ✓ Closing observed
09-13 23:30 80m - / - EC4TR -22 / - 8 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
015630 -21 2039  3B8FA W3DIY FM19 (x3)
011215 -19 2039  RN8C/M W3DIY FM19
012445 -17 2039  WP4TUN W3DIY FM19
022745 -18 2039  RN8C/M W3DIY FM19
013330 -17 2038  OD5XX W3DIY FM19 (x2)
012315 -11 2544  R2EA/P W3DIY FM19
012400  +0 1756  W3DIY RR73; K4JJL <...> -22
215300 -16 1677  W3DIY EA6TU -16 (x2)
215430  -9  615  W3DIY LB7ZG JP50 (x3)
80m
UTC    dB Audio  Message
012000 +10 1139  W3DIY IZ5NRF -09
012015 -12 2002  IZ5NRF W3DIY R-09
012030  +4 1139  W3DIY IZ5NRF RR73
012100  +5 1931  W3DIY F4EGM JN29
012100 -10 1165  W3DIY DO3BOX -15
014145 -20 2002  RU0LL/P W3DIY FM19
015600 -12 2003  UR4SXA W3DIY FM19
015615  -1  856  W3DIY UR4SXA -23
015630 -15 2003  UR4SXA W3DIY R+02
015645  -6  857  W3DIY UR4SXA RR73
015645  +5 2559  W3DIY SV1BLD KM17 (x3)
015815  +1 2650  W3DIY DG5RN JN59 (x2)
10m
UTC    dB Audio  Message
135800  -3 1646  W3DIY 4Z5AV -13 (x2)
20m
UTC    dB Audio  Message
120845 -17 2077  JA2LWA W3DIY R-14
171045 -14 2076  EW1MN W3DIY FM19
234315 -16 2076  RI1FJL W3DIY FM19 (x3)
155715 -22 2076  RL2F W3DIY 73
160130  -6  914  W3DIY G8IXM JO02
160230 +16 3026  W3DIY F5JQF JN26 (x8)

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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