9A1AD — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Croatia Most frequent locator attributed to this token: JN85

Receiver-side FT8 activity involving 9A1AD, decoded by SO8OO in southeastern Poland. 154 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 15 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-09-14.

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 154 FT8 messages attributed to 9A1AD 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 80 m (27%) and 20 m (1%). Most decodes (77%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (74%); the estimated median was -4 dB.

Overview

154
Messages attributed
15
UTC dates decoded
32
Active 15-min windows
-4 dB
Estimated median S/N

Bands

First attributed message: 2026-06-11
Last attributed message: 2026-09-14 19:38 UTC

Observed FT8 message patterns

Attributed sample
154 messages
Active dates
15 UTC dates
Estimated median S/N
-4 dB
Estimated 10th-90th percentile
-13 to +4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 11, moderate (-15 to -9 dB) 29, strong (≥ -8 dB) 114.

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 9A1AD 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 9A1AD

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
JN85 · 109 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
610 km (approx.)
Last such locator decoded
2026-09-14 19:38 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 UTCBand9A1AD S/NCounterpartCounterpart S/NMsgsCapture
09-14 19:36 40m +4 / - RD1A/7 - / - 4 Partial capture
09-14 18:46 80m - / - RK6OQ +5 / - 2 Partial capture
09-14 18:43 80m -1 / - R3DIK/M - / -2 4 Partial capture
09-14 16:24 40m +4 / - SP0YAGI - / -10 2 Partial capture
09-11 20:03 40m -4 / - 2E0UMK - / -10 2 ✓ Closing fragment
09-11 19:58 40m -5 / - UB3ADO/P - / -9 5 Partial capture
09-11 08:33 40m -2 / - SP100PKP - / -3 2 Partial capture
09-03 22:04 80m - / - G7KCK -12 / - 3 Partial capture
09-03 21:50 80m - / - DL9KM -5 / - 7 Partial capture
09-03 21:46 80m - / - DK1MCS -2 / - 5 Partial capture
09-03 21:29 80m -7 / - RI1FJL - / - 14 Partial capture
09-02 14:37 40m +4 / - <...> - / -1 2 Partial capture
08-31 13:59 40m +3 / - HB10GBT - / -12 3 Partial capture
08-31 13:56 40m +2 / - <...> - / -2 2 Partial capture
08-30 10:27 40m -4 / - <...> - / - 6 Partial capture
08-24 10:06 40m -16 / - DP75BAC - / - 2 Partial capture
08-24 10:02 40m -6 / - <...> - / -8 4 Partial capture
08-14 20:58 40m -4 / - DJ6OI/P - / 0 2 Partial capture
08-14 19:47 40m -4 / - 9A170TESLA - / -7 2 Partial capture
07-05 19:58 40m -15 / - DL50IPARC - / - 3 Partial capture
07-03 21:05 40m -8 / - <...> - / -9 2 Partial capture
07-03 18:02 40m -12 / - <...> - / -11 7 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
195900  -9 1316  UB3ADO/P 9A1AD JN85 (x3)
200015  -5  741  9A1AD LX1LANZ -04
200030  -4 1316  UB3ADO/P 9A1AD R-09
200300  -4 1316  2E0UMK 9A1AD -10 (x2)
162445  +4  880  SP0YAGI 9A1AD JN85
162500  +0 1658  9A1AD R3DIK/M +01
162515  +4  880  SP0YAGI 9A1AD R-10
193445  +2  904  DL40RIG 9A1AD JN85
193645  +5  930  RD1A/7 9A1AD JN85 (x4)
80m
UTC    dB Audio  Message
215830  +4 2064  9A1AD IQ4JO JN63
215915  -9 1352  CQ 9A1AD JN85 (x3)
220400 -14 1721  9A1AD G7KCK IO82 (x3)
184300  -6  864  R3DIK/M 9A1AD JN85 (x3)
184515  +7 1303  9A1AD DL50IPARC -12
184530  -1  864  R3DIK/M 9A1AD R-02
184615 +10  864  9A1AD UA4FKT LO23
184615  +2 1159  9A1AD RK6OQ KN87 (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.

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