AD8J — 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: EM85

Receiver-side FT8 activity involving AD8J, decoded by SO8OO in southeastern Poland. 417 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 15 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-07.

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 417 FT8 messages attributed to AD8J as the transmitting token by decoded message structure across 15 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (73%), followed by 20 m (27%). 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 -15 dB.

Overview

417
Messages attributed
15
UTC dates decoded
56
Active 15-min windows
-15 dB
Estimated median S/N

Bands

First attributed message: 2026-06-08
Last attributed message: 2026-10-07 00:40 UTC

Observed FT8 message patterns

Attributed sample
417 messages
Active dates
15 UTC dates
Estimated median S/N
-15 dB
Estimated 10th-90th percentile
-23 to -6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 195, moderate (-15 to -9 dB) 154, strong (≥ -8 dB) 68.

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 AD8J

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
EM85 · 106 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,995 km (approx.)
Last such locator decoded
2026-10-06 01:47 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 UTCBandAD8J S/NCounterpartCounterpart S/NMsgsCapture
10-07 00:34 40m -16 / - W3HVG - / -10 2 Partial capture
10-07 00:34 40m - / -7 ON8FAB -14 / - 2 Partial capture
10-07 00:31 40m - / -16 DK5WL +10 / - 2 ✓ Closing fragment
10-07 00:24 40m - / - UA4FKT 0 / - 2 Partial capture
10-06 01:42 40m -18 / - EI3CTB - / -25 2 ✓ Closing fragment
10-06 01:41 40m -20 / - KC1ZDZ - / +6 2 ✓ Closing fragment
10-06 01:35 40m - / -11 LZ1QZ -11 / - 3 ✓ Closing fragment
10-06 01:32 40m - / -14 4X5CG -6 / - 3 ✓ Closing fragment
10-06 01:03 40m - / - RD3FY -16 / - 2 Partial capture
10-06 00:55 40m -22 / - TA4SSK - / -25 3 Partial capture
10-06 00:51 40m -21 / - 9A4AA - / -10 2 ✓ Closing fragment
10-06 00:33 40m -22 / - KC9TQV - / - 2 ✓ Closing fragment
10-06 00:32 40m -24 / - VE3ODR - / +6 2 ✓ Closing fragment
10-06 00:28 40m -22 / - N4RAF - / -15 2 ✓ Closing fragment
10-06 00:23 40m -20 / +2 EA2AR -8 / - 4 ✓ Closing observed
10-06 00:23 40m -22 / - W8SEA - / -4 2 ✓ Closing fragment
10-06 00:21 40m -22 / - SV2SIF - / -13 2 ✓ Closing fragment
10-06 00:07 40m -24 / - IX4WIO - / -17 3 Partial capture
10-06 00:02 40m -24 / -11 CT3IQ -12 / -7 4 ✓ Full exchange observed
10-05 23:33 40m -22 / - KN4DGI - / -6 2 ✓ Closing fragment
10-05 23:31 40m -20 / - US1CR - / -16 2 ✓ Closing fragment
10-05 23:27 40m - / -9 M0PEL -3 / - 5 ✓ Closing fragment
10-05 01:06 40m -10 / - HB9GII - / -16 2 ✓ Closing fragment
10-05 01:04 40m -10 / - RK3YWS/P - / -1 3 Partial capture
10-05 01:02 40m -10 / - S57ACD - / -19 4 ✓ Closing fragment
10-05 01:00 40m -7 / - LZ1DPP - / -16 2 Partial capture
10-05 00:59 40m -8 / - KD9MAB - / -8 2 ✓ Closing fragment
10-05 00:55 40m -7 / - KC8TDS - / +10 5 ✓ Closing fragment
10-05 00:54 40m -8 / - LZ2II -12 / -4 3 ✓ Full exchange observed
10-05 00:52 40m -8 / - PD2JR - / -17 2 ✓ Closing fragment
10-05 00:51 40m -5 / - RK3YWS/P - / +7 2 Partial capture
10-05 00:43 40m - / -12 IW1GB -4 / - 2 Partial capture
10-05 00:41 40m - / - PA3MVD -15 / - 8 Partial capture
10-05 00:39 40m -6 / -1 IK2YYO -17 / - 6 ✓ Closing observed
10-05 00:37 40m -2 / - KP2B - / -12 2 Partial capture
10-05 00:28 40m - / -8 F6FDY +2 / - 3 ✓ Closing fragment
10-05 00:21 40m - / -13 EC1ALT -12 / - 2 ✓ Closing fragment
10-05 00:09 40m -2 / -10 M0LAD +1 / -16 6 Partial capture
10-05 00:08 40m +1 / -5 HB9EFK +7 / -8 3 ✓ Full exchange observed
10-05 00:06 40m 0 / - GM7JQK -9 / -25 7 ✓ Closing observed
10-05 00:05 40m -2 / - OK1DXR - / -14 2 ✓ Closing fragment
10-05 00:04 40m - / - EI2KM +6 / - 2 ✓ Closing fragment
10-03 01:40 160m - / - LA9JKA -7 / - 9 Partial capture
10-03 01:30 160m - / -21 IW4AOT +8 / - 3 Partial capture
10-03 01:25 160m - / - LA9JKA -8 / - 2 Partial capture
08-31 01:32 40m - / -11 G8KHF -2 / - 7 Partial capture
08-31 00:44 40m - / - R3PJV -8 / - 3 Partial capture
08-31 00:41 40m - / - RK6ZX -3 / - 2 Partial capture
08-28 02:02 60m - / -14 ES2AJ +14 / - 2 ✓ Closing fragment
08-28 01:57 60m - / - LB1UK -12 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

10m
UTC    dB Audio  Message
175230  -5  455  AD8J EA7LHN R-13 (x2)
144830 -15 2476  AD8J EA7Z R-06
40m
UTC    dB Audio  Message
014500 -19 1923  CQ AD8J EM85 (x5)
002400  +1  792  AD8J UA4FKT LO23 (x2)
003130 +11  592  AD8J DK5WL R-16 (x2)
003330 -13  793  AD8J TA3NK KM39
003400 -13  793  AD8J ON8FAB -07
003415 -16  792  W3HVG AD8J -10
003430 -14  793  AD8J ON8FAB -07
003545 -15  793  W3HVG AD8J -10
004045 -13  743  GB85ATC AD8J -16
160m
UTC    dB Audio  Message
012530  -8 1563  AD8J LA9JKA JP32 (x2)
013000  +3 2202  AD8J IW4AOT -21 (x3)
014030 -10 1589  AD8J LA9JKA JP32 (x2)
014100  +1  591  AD8J IZ0BYM JN61
014130 -17 1589  AD8J LA9JKA JP32 (x7)
60m
UTC    dB Audio  Message
015715  -7 1128  AD8J LA1HU R+03
015745 -12 1402  AD8J LB1UK JP54
015745 -11 1128  AD8J LA1HU 73
015815 -13 1402  AD8J LB1UK JP54
020200 +13 2493  AD8J ES2AJ R-14 (x2)
20m
UTC    dB Audio  Message
022315 -24 1900  CQ AD8J EM85 (x2)
022445 -23 1900  IW5ALZ AD8J -12 (x4)
184015  -5 2035  AD8J PD1ADA JO21 (x5)
184230 -17 1706  PD1ADA AD8J RR73
184300 -19 1706  OZ9FF AD8J -11
184315  -6 2126  AD8J OZ9FF R-09 (x2)
80m
UTC    dB Audio  Message
013930  +2 2062  AD8J UX7QV KN29 (x7)

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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