9A1CCS — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving 9A1CCS, decoded by SO8OO in southeastern Poland. 562 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-07-24.

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 562 FT8 messages attributed to 9A1CCS as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (85%), followed by 40 m (15%). Most decodes (80%) fell within the six-hour window 07:00-13:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13.9 dB.

Overview

562
Messages attributed
8
UTC dates decoded
59
Active 15-min windows
-13.9 dB
Estimated median S/N

Bands

First attributed message: 2026-06-08
Last attributed message: 2026-07-24 12:54 UTC

Observed FT8 message patterns

Attributed sample
562 messages
Active dates
8 UTC dates
Estimated median S/N
-13.9 dB
Estimated 10th-90th percentile
-21 to -6.1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 226, moderate (-15 to -9 dB) 242, strong (≥ -8 dB) 94.

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 9A1CCS

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 · 393 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
610 km (approx.)
Last such locator decoded
2026-07-24 12:54 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 UTCBand9A1CCS S/NCounterpartCounterpart S/NMsgsCapture
07-24 12:52 20m -9 / - RA0SCZ - / - 4 Partial capture
07-24 12:48 20m -14 / -11 PD5FL -14 / -9 9 Partial capture
07-24 12:41 20m -7 / - UG4P - / - 8 Partial capture
07-24 12:35 20m -12 / - EW4MO - / +5 2 Partial capture
07-24 12:33 20m -15 / - R3TKM - / +2 3 Partial capture
07-24 12:32 20m - / - OE6CLD -9 / - 3 Partial capture
07-24 12:31 20m -12 / - 2E1HAT - / - 4 Partial capture
07-24 12:27 20m -14 / - R8OAE - / - 2 Partial capture
07-24 12:25 20m -14 / - LB4PI - / - 2 Partial capture
07-24 12:23 20m -15 / -14 <...> -16 / - 5 Partial capture
07-24 11:58 20m - / - F5RRS -12 / - 4 Partial capture
07-24 11:55 20m - / - OE6CLD -2 / - 12 Partial capture
07-24 11:54 20m - / -17 YO6LM -12 / - 2 ✓ Closing fragment
07-24 11:19 20m -18 / - PD4RJ - / - 2 ✓ Closing fragment
07-24 11:17 20m -17 / - EA8DGI - / -13 4 ✓ Closing fragment
07-24 11:16 20m -15 / - M0DPK - / - 2 Partial capture
07-24 11:04 20m -14 / -21 DL1UDO -24 / -13 3 Partial capture
07-24 11:02 20m -15 / - G4LBJ - / +6 2 Partial capture
07-24 11:00 20m -12 / - HB9EIZ/P - / -15 2 ✓ Closing fragment
07-24 10:58 20m -12 / - PD5RC - / -10 5 ✓ Closing fragment
07-24 10:57 20m -15 / - IT9FJE - / +4 3 ✓ Closing fragment
07-24 10:56 20m -16 / - DL2EEO - / - 2 Partial capture
07-24 10:55 20m - / - F5RRS -8 / - 4 Partial capture
07-24 10:54 20m -12 / - SQ8DIO - / - 2 Partial capture
07-24 10:51 20m -18 / - RK9UN - / - 4 Partial capture
07-24 10:49 20m -18 / - RA0SCZ - / - 2 Partial capture
07-24 10:47 20m -11 / - OH1CIN - / - 4 Partial capture
07-24 10:45 20m -5 / - A61CK - / - 3 Partial capture
07-24 10:44 20m -10 / - PD4JOH - / - 2 Partial capture
07-24 10:42 20m -4 / - SQ7OCJ - / -19 2 Partial capture
07-24 10:40 20m -10 / - A41ZZ - / - 3 Partial capture
07-24 10:39 20m -14 / - R9YQ - / - 2 Partial capture
07-24 10:37 20m -13 / - RA0WBI - / - 2 Partial capture
07-24 10:36 20m -15 / - M5WJF - / - 2 Partial capture
07-24 10:34 20m -18 / - F4NJZ - / - 2 Partial capture
07-24 10:22 20m - / -8 OZ1IIO -21 / - 7 Partial capture
07-24 10:16 20m -14 / -8 OZ1IIO -19 / - 6 Partial capture
07-24 10:12 20m -15 / - A61DI - / -12 5 ✓ Closing fragment
07-24 10:10 20m -16 / - OH1CIN - / - 3 Partial capture
07-24 10:08 20m -12 / - PA0HCL - / -11 4 ✓ Closing fragment
07-24 10:07 20m -15 / -17 R3XBB -20 / -24 4 ✓ Full exchange observed
07-24 10:05 20m -10 / - M0JBF - / - 3 Partial capture
07-24 10:03 20m -4 / - M0DPK - / - 4 Partial capture
07-24 09:59 20m - / - PD1ADA -16 / - 6 Partial capture
07-24 09:58 20m -14 / - PD0FF - / +1 3 ✓ Closing fragment
07-24 09:57 20m -10 / - IU5HIU -10 / -14 7 Partial capture
07-24 09:56 20m -9 / - R3XBB - / - 3 Partial capture
07-24 09:51 20m -16 / -10 UT4VL -14 / -8 6 ✓ Full exchange observed
07-24 09:49 20m -14 / - ON3JJT - / -5 2 Partial capture
07-24 09:47 20m -17 / - M7VZK - / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m
UTC    dB Audio  Message
124800 -15 1345  PD5FL 9A1CCS R-09 (x2)
124915 -11  911  9A1CCS PD5FL -11 (x5)
125200  -9 1345  RA0SCZ 9A1CCS JN85
125215 -16  912  9A1CCS PD5FL -11
125230  -5 1345  RA0SCZ 9A1CCS JN85
125245 -14  912  9A1CCS PD5FL -11
125300  -8 1345  RA0SCZ 9A1CCS JN85 (x2)
125400 -12 1345  PD4JOH 9A1CCS JN85
054800 -10  921  9A1CCS W8OBX FM25
40m
UTC    dB Audio  Message
174900 -10 1747  OE7JUM 9A1CCS JN85 (x2)
175100 -11 1747  <...> 9A1CCS JN85 (x8)
175530 -13 1747  DB5OET 9A1CCS JN85 (x5)

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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