WA0DYJ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: FM18

Receiver-side FT8 activity involving WA0DYJ, decoded by SO8OO in southeastern Poland. 556 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 25 UTC dates in the available aggregate history. Observed between 2026-06-06 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 556 FT8 messages attributed to WA0DYJ as the transmitting token by decoded message structure across 25 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (92%), followed by 40 m (8%). Most decodes (89%) fell within the six-hour window 21:00-03:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

556
Messages attributed
25
UTC dates decoded
73
Active 15-min windows
-9 dB
Estimated median S/N

Bands

40m · 47 20m · 509
First attributed message: 2026-06-06
Last attributed message: 2026-09-21 02:31 UTC

Observed FT8 message patterns

Attributed sample
556 messages
Active dates
25 UTC dates
Estimated median S/N
-9 dB
Estimated 10th-90th percentile
-20 to +2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 107, moderate (-15 to -9 dB) 177, strong (≥ -8 dB) 272.

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 WA0DYJ 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 WA0DYJ

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
FM18 · 254 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,390 km (approx.)
Last such locator decoded
2026-09-21 02:31 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 UTCBandWA0DYJ S/NCounterpartCounterpart S/NMsgsCapture
09-21 02:31 40m -21 / -6 PY7DJ -16 / - 3 ✓ Closing observed
09-21 02:20 40m -18 / - KG9OH - / -10 4 Partial capture
09-19 01:20 40m - / - F4LFG -4 / - 3 Partial capture
09-04 03:08 40m - / -13 DG7NFX -21 / - 2 ✓ Closing fragment
09-04 03:07 40m - / -16 IZ8EYN 0 / - 4 Partial capture
09-04 03:03 40m - / -20 IZ2ACM -10 / - 3 ✓ Closing fragment
09-04 02:58 40m - / -5 ON3CL +3 / - 7 ✓ Closing fragment
09-03 02:39 40m -15 / - SP9WLC - / -17 2 Partial capture
09-03 02:36 40m - / - EA5W -1 / - 2 Partial capture
09-03 02:35 40m -11 / - WV8U - / +3 2 ✓ Closing fragment
09-03 02:31 40m -4 / - KS2D - / - 2 Partial capture
09-03 02:30 40m -10 / - KB8ZIO - / +4 3 ✓ Closing fragment
09-03 02:29 40m -12 / - K5DCW - / -7 2 ✓ Closing fragment
09-02 01:49 40m - / - US1CR -2 / - 2 Partial capture
09-02 01:44 40m - / - N5VX -23 / - 2 Partial capture
09-02 01:39 40m - / - UA6AKW -5 / - 4 Partial capture
09-02 01:39 40m - / -5 F5UOU -8 / - 4 ✓ Closing fragment
09-02 01:36 40m - / - PC2J -14 / - 4 Partial capture
09-02 01:26 40m - / - PC2J -13 / - 3 Partial capture
09-02 01:17 40m - / - DL1UDO -23 / - 2 Partial capture
09-02 01:04 40m -21 / 0 PV8AJ -12 / -11 3 ✓ Full exchange observed
09-02 00:58 40m - / -19 UW5IM +7 / - 4 Partial capture
09-02 00:55 40m - / - EA5FD -10 / - 2 Partial capture
09-02 00:51 40m -22 / - K8ATL - / - 2 Partial capture
09-02 00:48 40m - / - PC2J -11 / - 3 Partial capture
09-02 00:45 40m - / - PC2J -8 / - 2 Partial capture
09-02 00:40 40m - / -5 CT3IQ -18 / - 4 ✓ Closing fragment
09-02 00:15 40m - / - PC2J -15 / - 5 Partial capture
09-02 00:12 40m - / - F6FHZ -7 / - 5 Partial capture
09-01 01:46 40m - / -15 PT7YV -2 / - 2 ✓ Closing fragment
09-01 01:41 40m - / -13 W4WHQ -14 / - 6 Partial capture
09-01 01:31 40m - / - F6FHZ -10 / - 6 Partial capture
09-01 01:29 40m - / -13 IZ8EYN -4 / - 5 Partial capture
09-01 01:29 40m - / - UA4FKT +7 / - 3 Partial capture
09-01 01:20 40m - / - F6FHZ -4 / - 5 Partial capture
08-31 02:02 40m - / - G5TV -2 / - 3 Partial capture
08-31 01:53 40m - / - IK2ZJR -8 / - 7 Partial capture
08-31 01:01 40m - / - G5TV -15 / - 3 Partial capture
08-31 00:56 40m - / -24 M0KEE -1 / - 9 Partial capture
08-31 00:56 40m - / - G5TV -7 / - 3 Partial capture
08-31 00:47 40m - / - G5TV -2 / - 2 Partial capture
08-29 21:13 20m -19 / - IK4HLQ - / +2 2 ✓ Closing fragment
08-29 21:10 20m -9 / - OK7CM - / -9 3 ✓ Closing fragment
08-29 21:08 20m -9 / - LX7I - / +6 3 ✓ Closing fragment
08-29 01:05 20m -10 / - <...> -24 / -12 3 Partial capture
08-29 01:00 20m -6 / -6 PT7PT -18 / -11 13 Partial capture
08-29 00:54 20m -16 / - N1UL -15 / -9 6 Partial capture
08-29 00:52 20m -20 / - KC9JJS - / -8 2 Partial capture
08-29 00:07 20m -12 / - 7Z1CZ - / - 6 Partial capture
08-25 01:16 20m -22 / +7 HC5RF -12 / -1 4 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
012515 -20 1813  WA0DYJ GM6URC -14
013700 -21 2170  WA0DYJ 9A5E -07
014315 -24 1569  YN8ZAC WA0DYJ FM18
014445 -11  563  W1DWE WA0DYJ R+03
021600 -14 1245  K4MOR WA0DYJ RR73
021730 -18 1245  KE9EEW WA0DYJ RR73
021800 -19 1244  CQ WA0DYJ FM18                        a1 (x2)
022000 -19 1244  KG9OH WA0DYJ -10 (x4)
023130 -21 2244  PY7DJ WA0DYJ FM18
023245 -16 2326  WA0DYJ PY7DJ -06 (x2)
80m 
UTC    dB Audio  Message
020915  -7 2279  WA0DYJ F5HNQ IN98 (x2)
20m 
UTC    dB Audio  Message
010445  -8 1869  CQ WA0DYJ FM18
010500 -19 1870  WA0DYJ PT7PT R-12
010515  -6 1712  <...> WA0DYJ FM18
010530 -24 1714  WA0DYJ <...> +24
010545 -13 1712  <...> WA0DYJ R-12
210400 -18 2080  KF0WRX WA0DYJ FM18
210830 -10  935  LX7I WA0DYJ FM18 (x3)
211045  -8 2765  OK7CM WA0DYJ FM18 (x3)
211330 -18 1969  IK4HLQ WA0DYJ R+02 (x2)
211700 -13 1257  OH8KA WA0DYJ R-04

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.

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