UA9OBN — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Asiatic Russia Most frequent locator attributed to this token: NO15

Receiver-side FT8 activity involving UA9OBN, decoded by SO8OO in southeastern Poland. 51 FT8 messages attributed to this token as transmitter, on 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-08-31.

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 51 FT8 messages attributed to UA9OBN as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Several six-hour UTC windows tied for the largest share (75%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

51
Messages attributed
7
UTC dates decoded
13
Active 15-min windows
-14 dB
Estimated median S/N

Bands

20m · 51
First attributed message: 2026-06-07
Last attributed message: 2026-08-31 14:45 UTC

Observed FT8 message patterns

Attributed sample
51 messages
Active dates
7 UTC dates
Estimated median S/N
-14 dB
Estimated 10th-90th percentile
-20 to -5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 16, moderate (-15 to -9 dB) 24, strong (≥ -8 dB) 11.

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 UA9OBN in decoded directed-looking exchanges:

Most frequent locator attributed to UA9OBN

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
NO15 · 26 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
4,032 km (approx.)
Last such locator decoded
2026-08-30 04:30 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 UTCBandUA9OBN S/NCounterpartCounterpart S/NMsgsCapture
09-13 16:05 40m - / -5 R3KFT 0 / - 2 ✓ Closing fragment
09-13 15:53 40m - / -12 R2SN +2 / - 3 ✓ Closing fragment
09-13 15:49 40m - / -20 R6YG 0 / - 2 ✓ Closing fragment
09-08 03:23 40m - / -23 R6OK -18 / - 2 ✓ Closing fragment
09-06 16:54 40m - / -5 R3YAR +9 / - 2 ✓ Closing fragment
09-06 16:35 40m - / -20 RK3YWA -6 / - 3 ✓ Closing fragment
09-06 16:28 40m - / -15 RA6LTD +2 / - 8 Partial capture
09-06 16:24 40m - / -13 R7OQ -3 / - 12 ✓ Closing fragment
09-05 15:24 40m - / -15 RC6OX -4 / - 2 ✓ Closing fragment
08-31 14:45 20m -20 / -6 RA3TT -8 / - 3 ✓ Closing observed
08-31 10:57 20m - / -13 RV3YN -16 / - 3 ✓ Closing fragment
08-30 14:03 40m - / -14 RM6OS +8 / - 2 ✓ Closing fragment
08-30 12:03 20m - / -13 RA6OQ -2 / - 2 ✓ Closing fragment
08-30 11:46 20m - / -14 RO6OP +1 / - 2 ✓ Closing fragment
08-30 11:43 20m - / -10 UI6O +2 / - 2 Partial capture
08-30 04:31 20m -16 / - R2GBR - / -9 2 Partial capture
08-30 04:27 20m -12 / - RV3X - / -6 4 ✓ Closing fragment
08-30 04:20 20m -12 / - R6OU - / -15 4 ✓ Closing fragment
08-25 12:33 20m - / -11 RA6MQ +2 / - 2 ✓ Closing fragment
08-23 16:14 20m - / -16 PD1AQL -11 / - 4 ✓ Closing fragment
08-07 05:58 20m - / -4 R3UAX 0 / - 2 ✓ Closing fragment
08-06 05:39 20m - / -17 R3YK -4 / - 2 ✓ Closing fragment
08-01 16:50 40m - / -24 RN6HK -7 / - 3 ✓ Closing fragment
08-01 16:43 40m - / -10 R50RKZ -14 / - 2 ✓ Closing fragment
07-29 16:21 20m - / -12 JY5CG -18 / - 2 ✓ Closing fragment
07-26 16:58 40m - / -8 UA3ZQN -14 / - 3 ✓ Closing fragment
07-25 18:18 40m - / -11 RA3AJT -10 / - 2 ✓ Closing fragment
07-25 17:37 20m - / -7 RA3UEV -10 / - 2 ✓ Closing fragment
07-25 10:13 20m - / -13 RW4COM -19 / - 2 ✓ Closing fragment
07-24 16:42 20m - / -7 R4HBC -10 / - 2 ✓ Closing fragment
07-22 05:03 20m - / -17 RV3QI +6 / - 2 ✓ Closing fragment
07-21 02:35 20m - / - HZ1TT -23 / - 2 ✓ Closing fragment
07-15 16:29 40m - / -13 RK6MC -16 / - 3 ✓ Closing fragment
07-13 04:42 20m - / -16 RD6OX -1 / - 3 ✓ Closing fragment
07-10 08:02 20m - / -15 R3YAU -11 / - 3 Partial capture
06-29 02:54 20m - / -15 LZ1ZF +2 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
165700  -1  683  UA9OBN RN3YN -17 (x2)
032330 -20 1822  UA9OBN R6OK -23 (x2)
154930  -2 2309  UA9OBN R6YG -20 (x2)
155200  -2 2603  UA9OBN R4UA RR73
155300  -2  962  UA9OBN R2SN -12 (x3)
155815 -12 1478  UA9OBN RV3DEP KO86
160530  -3 2336  UA9OBN R3KFT -05 (x2)
022330 -10  393  UA9OBN R4ZZ -06
022715 -19 1693  UA9OBN R9CB 73
20m 
UTC    dB Audio  Message
043030 -14 1000  CQ UA9OBN NO15
043100 -18  999  R2GBR UA9OBN R-09 (x2)
114330  +1  863  UA9OBN UI6O -10 (x2)
114615  +0 1485  UA9OBN RO6OP -14 (x2)
120315  -8 2558  UA9OBN RA6OQ -13 (x2)
105715  -8 2314  UA9OBN RV3YN -13 (x3)
144500  -8 1901  UA9OBN RA3TT -06 (x2)
144545 -20  942  RA3TT UA9OBN 73
10m 
UTC    dB Audio  Message
060215 -15 2290  UA9OBN RA7T -09

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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