UA9JTJ/9 — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Asiatic Russia

Receiver-side FT8 activity involving UA9JTJ/9, decoded by SO8OO in southeastern Poland. 431 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 17 UTC dates in the available aggregate history. Observed between 2026-09-13 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 431 FT8 messages attributed to UA9JTJ/9 as the transmitting token by decoded message structure across 17 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (67%), followed by 40 m (33%). Most decodes (59%) fell within the six-hour window 20:00-02:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9.5 dB.

Overview

431
Messages attributed
17
UTC dates decoded
101
Active 15-min windows
-9.5 dB
Estimated median S/N

Bands

First attributed message: 2026-09-13
Last attributed message: 2026-10-07 15:31 UTC

Observed FT8 message patterns

Attributed sample
431 messages
Active dates
17 UTC dates
Estimated median S/N
-9.5 dB
Estimated 10th-90th percentile
-18 to +3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 87, moderate (-15 to -9 dB) 150, strong (≥ -8 dB) 194.

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.

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 UTCBandUA9JTJ/9 S/NCounterpartCounterpart S/NMsgsCapture
10-07 15:38 80m - / -3 RA3PDG +2 / - 2 Partial capture
10-07 15:29 40m - / -1 DK5DW -5 / - 5 Partial capture
10-07 15:15 40m +6 / - ON5HE - / -8 2 Partial capture
10-07 15:07 40m - / - DK5DW -4 / - 7 Partial capture
10-07 15:04 40m - / - EW2GI -11 / - 3 Partial capture
10-07 14:57 40m - / -1 DK5DW -7 / - 2 Partial capture
10-07 14:39 40m - / - DK5DW -7 / - 3 Partial capture
10-07 07:28 40m - / -7 PC2J -10 / - 2 Partial capture
10-07 07:18 40m - / -14 DF3VX -20 / - 2 Partial capture
10-07 06:45 40m - / - PE1NPS -19 / - 3 Partial capture
10-07 06:36 40m - / - PE1NPS -18 / - 2 Partial capture
10-07 06:29 40m - / -3 DF3VX -16 / - 2 Partial capture
10-07 06:19 40m - / +9 DL4SEW -6 / - 2 Partial capture
10-07 05:47 40m - / - F4IOE -6 / - 4 Partial capture
10-07 05:46 80m - / -7 HB9EKJ -12 / - 10 Partial capture
10-07 05:12 40m - / +6 S55OO +1 / - 3 Partial capture
10-07 05:05 40m - / - F4IOE -2 / - 2 Partial capture
10-07 04:08 80m - / -4 HB9ALO -9 / - 2 Partial capture
10-07 03:55 80m - / -11 RC6OU -6 / - 2 Partial capture
10-07 03:44 80m - / -4 SP7IIT +4 / - 2 Partial capture
10-07 03:10 40m - / - LZ1BK -18 / - 2 Partial capture
10-07 03:02 40m - / -7 RU4I -3 / - 2 Partial capture
10-07 03:01 40m - / -19 LZ2II -2 / - 3 Partial capture
10-07 02:13 40m - / - R4HHN -8 / - 2 Partial capture
10-07 01:55 40m - / - DL1UDO -15 / - 3 Partial capture
10-06 23:47 80m - / - R2AL +7 / - 7 Partial capture
10-06 23:39 80m - / - R2AL +7 / - 5 Partial capture
10-06 23:26 80m - / - UA9FLI -12 / - 2 Partial capture
10-06 22:14 80m - / -8 RX3ASQ +1 / - 3 Partial capture
10-06 22:10 80m - / - RX3ASQ +3 / - 2 Partial capture
10-06 22:07 80m - / - RX3ASQ +2 / - 2 Partial capture
10-06 21:49 80m - / - RX3ASQ +2 / - 3 Partial capture
10-06 21:45 80m - / - RX3ASQ +4 / - 2 Partial capture
10-06 21:38 80m - / - RX3ASQ -2 / - 2 Partial capture
10-06 21:29 80m - / -5 R2AL +8 / - 6 Partial capture
10-06 21:28 80m - / - DG6YMK -4 / - 2 Partial capture
10-06 21:23 80m - / -9 RX3ASQ -6 / - 3 Partial capture
10-06 21:11 80m - / - R2AL +1 / - 3 Partial capture
10-06 21:05 80m - / - R2AL +2 / - 3 Partial capture
10-06 21:04 80m - / -9 RX3ASQ -7 / - 5 Partial capture
10-06 21:01 80m - / - RX3ASQ -10 / - 2 Partial capture
10-06 20:53 80m - / - RX3ASQ -10 / - 4 Partial capture
10-06 20:45 80m - / +2 R2AL +2 / - 4 Partial capture
10-06 20:24 80m - / - R2AL +9 / - 4 Partial capture
10-06 19:35 80m - / - R2AL +8 / - 4 Partial capture
10-06 19:31 80m - / - R2AL +7 / - 4 Partial capture
10-06 19:29 80m - / +2 HB9EKJ -12 / - 2 Partial capture
10-06 19:22 80m - / -5 HB9EKJ -18 / - 3 Partial capture
10-06 18:50 40m - / - UB6OCP -13 / - 7 Partial capture
10-06 18:22 80m - / - E70SZ +6 / - 5 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
150915  -4 1243  UA9JTJ/9 DK5DW JN68 (x4)
151515  +2 1243  ON5HE UA9JTJ/9 -08 (x2)
151615  +5 1243  UA9JTJ/9 YR26AB 73
151645  +6 1243  UA9CR UA9JTJ/9 R-04
152900  -2 1243  UA9JTJ/9 DK5DW JN68 (x5)
153130  -1 1243  OR80AF UA9JTJ/9 73
164900  -6  841  UA9JTJ/9 PH2M -02
80m
UTC    dB Audio  Message
040815  -9 1083  UA9JTJ/9 HB9ALO JN45 (x2)
054645 -12 1375  UA9JTJ/9 HB9EKJ R-07 (x10)
153815  +2 1082  UA9JTJ/9 RA3PDG KO83 (x2)
160115 -21 1285  UA9JTJ/9 IU5VMV -11

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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