UB6SAN — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KN86

Receiver-side FT8 activity involving UB6SAN, decoded by SO8OO in southeastern Poland. 1,141 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 37 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-08-11.

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 1,141 FT8 messages attributed to UB6SAN as the transmitting token by decoded message structure across 37 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (82%), followed by 20 m (12%) and 10 m (6%). Most decodes (62%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

1,141
Messages attributed
37
UTC dates decoded
202
Active 15-min windows
-12 dB
Estimated median S/N

Bands

40m · 937 20m · 138 10m · 66
First attributed message: 2026-06-10
Last attributed message: 2026-08-11 17:53 UTC

Observed FT8 message patterns

Attributed sample
1,141 messages
Active dates
37 UTC dates
Estimated median S/N
-12 dB
Estimated 10th-90th percentile
-20 to -3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 304, moderate (-15 to -9 dB) 485, strong (≥ -8 dB) 352.

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 UB6SAN 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 UB6SAN

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
KN86 · 527 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,187 km (approx.)
Last such locator decoded
2026-07-29 18:59 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 UTCBandUB6SAN S/NCounterpartCounterpart S/NMsgsCapture
08-09 18:30 40m 0 / - R1AE - / 0 3 ✓ Closing fragment
08-09 18:24 40m -8 / - R3DMC - / -17 2 ✓ Closing fragment
08-05 01:52 40m - / -5 K1HC -16 / - 2 ✓ Closing fragment
08-03 17:11 20m -22 / - RA3M - / -3 2 Partial capture
08-01 18:11 40m -19 / -11 ON4VT -9 / - 7 ✓ Closing observed
08-01 18:06 40m -21 / -4 R3ES -6 / +3 3 ✓ Full exchange observed
08-01 17:40 40m -20 / - R9FGF - / -4 2 ✓ Closing fragment
07-31 21:06 40m -9 / +3 9K2GR -17 / +5 3 ✓ Full exchange observed
07-31 21:02 40m -6 / +7 R2BIU -19 / +1 5 ✓ Full exchange observed
07-31 20:52 40m -12 / -2 UF1A -12 / - 4 ✓ Closing observed
07-31 19:46 40m -12 / -8 R1BNF -12 / -2 4 ✓ Full exchange observed
07-31 19:24 40m -8 / +5 R6AR -10 / +10 4 ✓ Full exchange observed
07-31 19:22 40m -8 / -4 RA3AJT 0 / - 3 ✓ Closing observed
07-31 18:54 40m -12 / 0 R7BO -17 / - 4 ✓ Full exchange observed
07-31 18:51 40m -10 / -5 RM1F -7 / -1 3 ✓ Full exchange observed
07-31 18:49 40m -13 / -9 EW8AAC -14 / - 3 ✓ Closing observed
07-31 18:47 40m -14 / - RA5CW -16 / -11 3 ✓ Closing observed
07-31 18:44 40m -12 / - R3KED - / +8 2 ✓ Closing fragment
07-31 18:35 40m -9 / +8 RN6AK -8 / - 7 ✓ Full exchange observed
07-31 18:34 40m -12 / - R6AO - / -2 2 ✓ Closing fragment
07-31 18:32 40m -14 / - R3DMC - / -10 2 Partial capture
07-31 18:28 40m -9 / 0 UA3YAJ -15 / +8 6 ✓ Full exchange observed
07-31 18:26 40m -11 / - 3D2USU - / -11 3 ✓ Closing fragment
07-31 18:24 40m -13 / - UA1CAS - / -7 3 Partial capture
07-31 18:19 40m -12 / +6 LZ3YY -8 / +10 7 ✓ Full exchange observed
07-31 18:13 40m -4 / - 3D2USU - / 0 3 ✓ Closing fragment
07-29 18:54 40m -10 / - R4CKL - / -10 2 ✓ Closing fragment
07-29 18:47 40m -17 / - RA0AEP - / -14 3 ✓ Closing fragment
07-29 18:44 40m -18 / - UB3LCO -14 / - 2 ✓ Closing observed
07-29 18:42 40m -16 / - UT8IFE - / -10 2 ✓ Closing fragment
07-29 18:39 40m -14 / - R1TAX - / -10 2 ✓ Closing fragment
07-29 18:38 40m -14 / +1 RW2Z 0 / - 6 ✓ Full exchange observed
07-29 18:37 40m -12 / - R3DGH - / +4 2 ✓ Closing fragment
07-29 18:35 40m -14 / -6 UA4POO -23 / 0 3 ✓ Full exchange observed
07-29 18:32 40m -14 / - R1QD - / -8 2 ✓ Closing fragment
07-29 18:26 40m - / -9 RA3QQI -6 / - 2 ✓ Closing fragment
07-29 18:13 40m -22 / - R1QD - / -20 2 Partial capture
07-29 18:01 40m - / +2 RL7M -18 / - 3 Partial capture
07-29 17:53 40m - / -2 R5FQ -15 / - 2 ✓ Closing fragment
07-28 20:35 40m -10 / - R4NBV -6 / - 2 ✓ Closing observed
07-28 20:29 40m -12 / -17 OE8YXK -2 / +2 6 ✓ Full exchange observed
07-28 20:26 40m -12 / - <...> - / +10 2 Partial capture
07-28 20:15 20m - / - EA1FUB -12 / - 12 Partial capture
07-28 20:08 20m - / -5 9A3K +1 / - 3 ✓ Closing fragment
07-28 20:08 20m -15 / - DK7UY -15 / -7 2 Partial capture
07-28 20:06 20m - / 0 DL6KA 0 / - 2 ✓ Closing fragment
07-28 20:05 20m - / -18 DL3RAJ -18 / - 2 ✓ Closing fragment
07-28 19:08 20m -2 / - M0DPK - / -19 2 Partial capture
07-28 18:28 20m - / -21 EA3AAY -13 / - 6 ✓ Closing fragment
07-28 18:26 20m - / -23 PE1NPS -15 / - 4 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
201930 -10 1743  UB6SAN EA1FUB IN53 (x4)
170930 -19 1959  UB6SAN RA3P R-08
171045 -23 2064  RK2Z UB6SAN RR73
171115 -21 2065  RA3M UB6SAN R-03 (x2)
030545 -16 2121  UB6SAN R5FY RR73
114215 -17 2430  R8CBB UB6SAN RR73
115330 -13 2656  UB6SAN IQ4JO JN63
115330 -22 1656  UB6SAN PD3LKN JO22
115430 -22 1328  RA0SE UB6SAN -12
115600 -24 1657  UB6SAN PD3LKN JO22
011115 -12 2370  UB6SAN HI8J RR73
40m 
UTC    dB Audio  Message
181545 -10  852  R6DZO UB6SAN 73
181615 -11  852  R4IQ UB6SAN -03
180245 -18 1882  UB6SAN EW8DU KO52
012445  -6 2884  AD8J UB6SAN -11
015245 -16 2216  UB6SAN K1HC R-05 (x2)
182445  -7  707  R3DMC UB6SAN -17 (x2)
182615  -9  707  G1CEC UB6SAN RR73
183030  -1 2881  R1AE UB6SAN +00 (x3)
183330  -2 2881  UB1QAI UB6SAN -19
183430  +0 2881  R4PEP UB6SAN +00
175300  -8 2743  UA1ZQN UB6SAN -20
10m 
UTC    dB Audio  Message
142915 -15  826  UB6SAN RA3BY 73
145615 -21 1976  UB6SAN R3AT -17 (x4)
165315 -14 1841  UB6SAN RU3XK +09 (x2)
165445 -10 2568  UB6SAN R2EA -05
170715 -20 2005  UB6SAN RA3ZGT -01 (x2)
170815  -5  395  UB6SAN R3LC KO64 (x3)
171400  -9 2634  UB6SAN R2DBL -04 (x2)
80m 
UTC    dB Audio  Message
192545 -14 1925  UB6SAN R3SV LO04 (x6)

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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