9A6SJU — 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: Croatia Most frequent locator attributed to this token: JN95

Receiver-side FT8 activity involving 9A6SJU, decoded by SO8OO in southeastern Poland. 327 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 15 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-10-22.

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 327 FT8 messages attributed to 9A6SJU 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 (98%), followed by 20 m (2%). Most decodes (72%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (68%); the estimated median was -6 dB.

Overview

327
Messages attributed
15
UTC dates decoded
42
Active 15-min windows
-6 dB
Estimated median S/N

Bands

First attributed message: 2026-06-10
Last attributed message: 2026-10-22 15:13 UTC

Observed FT8 message patterns

Attributed sample
327 messages
Active dates
15 UTC dates
Estimated median S/N
-6 dB
Estimated 10th-90th percentile
-13 to 0 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 16, moderate (-15 to -9 dB) 90, strong (≥ -8 dB) 221.

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 9A6SJU

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
JN95 · 189 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
536 km (approx.)
Last such locator decoded
2026-10-22 15:13 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 UTCBand9A6SJU S/NCounterpartCounterpart S/NMsgsCapture
10-22 15:10 40m -6 / -9 PD1ACS -5 / - 6 ✓ Closing observed
10-22 15:05 40m -4 / - RV3GZ -16 / -18 4 ✓ Closing observed
10-22 15:00 40m -5 / - SM6VAG - / -23 3 Partial capture
10-22 07:14 40m -19 / -9 PC2F -19 / -4 3 Partial capture
10-22 07:11 40m -20 / - IU1QXQ -23 / -1 2 Partial capture
10-22 07:08 40m -11 / - F4NKT - / -13 5 Partial capture
10-22 07:01 40m - / -16 DJ2DL/QRP -19 / - 2 ✓ Closing fragment
10-22 06:47 40m -11 / - F1IQH -18 / - 5 ✓ Closing observed
10-22 06:42 40m -12 / -6 IK4LZH -2 / - 8 ✓ Full exchange observed
10-22 06:42 40m - / -2 ON3MOH -9 / - 3 ✓ Closing fragment
10-22 06:40 40m -7 / -12 G3TKT -14 / -11 3 ✓ Full exchange observed
10-21 18:38 40m - / -10 F1PBZ +4 / - 2 ✓ Closing fragment
10-21 18:36 40m - / - TA3NK -18 / - 4 Partial capture
10-21 18:34 40m - / -6 IU0DHV -8 / - 3 ✓ Closing fragment
10-21 18:30 40m - / -1 RG6ZF -11 / - 3 ✓ Closing fragment
10-21 18:28 40m - / -17 PD3FCA -12 / - 2 Partial capture
08-31 13:02 20m - / -5 GE8DQP -9 / - 2 ✓ Closing fragment
08-31 12:59 20m - / +6 PD4PMS -2 / - 3 ✓ Closing fragment
08-31 12:56 20m - / - OZ1SMB -10 / - 2 Partial capture
08-31 12:53 20m - / -10 F1IQH -2 / - 2 Partial capture
08-31 12:44 20m - / -3 ON3MOH +5 / - 3 ✓ Closing fragment
08-31 12:42 20m - / -16 R7OV -12 / - 2 ✓ Closing fragment
08-30 13:31 20m - / -16 TA2GG +6 / - 3 ✓ Closing fragment
08-30 13:27 20m - / -13 F1RMS +1 / - 3 ✓ Closing fragment
08-30 07:32 20m - / -14 TC30AGU -4 / - 9 Partial capture
08-30 07:28 20m - / -12 PA0RRS -9 / - 4 ✓ Closing fragment
08-30 07:27 20m - / -14 PD1HPB -3 / - 3 ✓ Closing fragment
08-28 17:27 20m - / +9 F5SJC +12 / - 4 ✓ Closing fragment
08-28 17:09 20m - / -12 OH3MB -13 / - 3 ✓ Closing fragment
08-28 16:57 20m - / - M7MOK -5 / - 3 Partial capture
08-28 06:02 20m - / -6 F4BYA +3 / - 8 ✓ Closing fragment
08-27 13:32 20m - / -8 2E1HAT +1 / - 8 ✓ Closing fragment
08-27 13:28 20m - / -9 M7WWG -4 / - 2 Partial capture
08-27 07:55 20m - / -11 TA3NK +10 / - 3 ✓ Closing fragment
08-27 07:49 20m - / -1 F1IQH -18 / - 3 Partial capture
08-27 07:40 20m - / -6 F4HSB 0 / - 4 Partial capture
08-26 15:50 20m - / +4 PD1JVE +11 / - 3 ✓ Closing fragment
08-26 15:47 20m - / -4 F1ODM +6 / - 2 ✓ Closing fragment
08-25 16:41 20m - / -13 CT1BFP -5 / - 4 ✓ Closing fragment
08-24 16:24 20m - / - 2E1HAT +9 / - 12 Partial capture
08-24 16:08 20m - / - 2E1HAT 0 / - 10 Partial capture
08-17 09:51 20m - / -21 UT7UJ 0 / - 2 ✓ Closing fragment
08-17 09:49 20m - / -14 M7TYH -14 / - 2 ✓ Closing fragment
08-17 09:40 20m - / +8 SH5RJX -22 / - 2 ✓ Closing fragment
08-15 19:04 20m - / - 2W0YOX -4 / - 2 Partial capture
08-15 18:57 20m - / -13 EA3GXK -6 / - 5 ✓ Closing fragment
08-14 09:48 20m - / -18 PD3LKN -4 / - 3 ✓ Closing fragment
08-14 09:45 20m - / -5 YL2JZ -13 / - 3 ✓ Closing fragment
07-29 18:27 40m -11 / - R3DGH - / -7 2 ✓ Closing fragment
07-29 18:09 40m - / -11 RZ2H -17 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
150200  -2  653  RV3GZ 9A6SJU -15 (x3)
150615 -16  659  9A6SJU RV3GZ 73
150630  -7  660  RV3GZ 9A6SJU 73
150700  -8  660  CQ 9A6SJU JN95 (x3)
151015  -5  663  9A6SJU PD1ACS JO32 (x2)
151100  -6  663  PD1ACS 9A6SJU RR73
151115  -5  663  9A6SJU PD1ACS R-09
151130  -6  664  PD1ACS 9A6SJU RR73
151145  -5  663  9A6SJU PD1ACS 73
151330  -3  666  CQ 9A6SJU JN95
20m
UTC    dB Audio  Message
124230 -12  559  9A6SJU R7OV 73
124430  +2  561  9A6SJU ON3MOH JO10 (x3)
124730  -7  562  9A6SJU M9NTS R-06
125230  +1  564  9A6SJU DL6AZ JO42
125300  -2  564  9A6SJU F1IQH R-10 (x2)
125600  -9 3004  9A6SJU OZ1SMB JO54 (x2)
125930  -4  433  9A6SJU PD4PMS JO22 (x3)
130200  -8 1043  9A6SJU GE8DQP R-05 (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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee