RW0UM — 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: Asiatic Russia Most frequent locator attributed to this token: OO90

Receiver-side FT8 activity involving RW0UM, decoded by SO8OO in southeastern Poland. 17 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-10-27.

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 17 FT8 messages attributed to RW0UM 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 (88%), followed by 80 m (12%). In this small sample, the estimated median decoder S/N was -17 dB; no usual signal pattern is inferred.

Overview

17
Messages attributed
7
UTC dates decoded
8
Active 15-min windows
-17 dB
Estimated median S/N

Bands

80m · 2 20m · 15
First attributed message: 2026-06-11
Last attributed message: 2026-10-27 21:40 UTC

Observed FT8 message patterns

Attributed sample
17 messages
Active dates
7 UTC dates
Estimated median S/N
-17 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, moderate (-15 to -9 dB) 3, strong (≥ -8 dB) 1.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with RW0UM in decoded directed-looking exchanges:

Most frequent locator attributed to RW0UM

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
OO90 · 10 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
6,379 km (approx.)
Last such locator decoded
2026-08-27 22:26 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 UTCBandRW0UM S/NCounterpartCounterpart S/NMsgsCapture
11-04 21:25 160m - / - SV2AEL +3 / - 3 Partial capture
11-04 21:23 160m - / - S58T +16 / - 2 Partial capture
11-04 21:16 160m - / - SV2AEL 0 / - 3 Partial capture
11-04 21:04 160m - / -17 S58T +14 / - 6 Partial capture
11-03 16:12 160m - / - RU3OW -15 / - 3 Partial capture
11-03 16:07 160m - / -20 UI6A -20 / - 3 Partial capture
11-03 16:06 160m - / - RU3OW -13 / - 5 Partial capture
11-03 15:52 160m - / - RW1C 0 / - 6 Partial capture
11-03 15:49 160m - / -3 UA6MF -4 / - 7 Partial capture
11-03 14:50 160m - / -7 UA6MF -2 / - 5 Partial capture
11-03 14:45 160m - / - UA6MF +4 / - 2 Partial capture
11-03 14:19 160m - / - UA6MF -9 / - 2 Partial capture
11-01 21:31 160m - / - R3LA +8 / - 3 Partial capture
11-01 21:29 160m - / - UA6MF +4 / - 4 Partial capture
11-01 21:28 160m - / - R5BM -3 / - 7 Partial capture
11-01 21:17 160m - / - R5BM -9 / - 16 Partial capture
11-01 21:10 160m - / - R5BM -11 / - 6 Partial capture
10-31 16:04 160m - / -20 RW1C -22 / - 2 Partial capture
10-31 16:01 160m - / - RU3FM +9 / - 6 Partial capture
10-31 15:58 160m - / -22 UI6A -22 / - 3 Partial capture
10-31 15:41 160m - / -21 UI6A -18 / - 2 Partial capture
10-31 14:23 160m - / -21 RA3SS -9 / - 5 ✓ Closing fragment
10-30 17:06 160m - / - RW1C -5 / - 6 Partial capture
10-30 17:00 160m - / -19 RA3SS -8 / - 5 ✓ Closing fragment
10-30 16:58 160m - / - RW1C -5 / - 5 Partial capture
10-30 16:55 160m - / - IK0HBN +2 / - 7 Partial capture
10-30 16:45 160m - / - RZ6LY -10 / - 6 Partial capture
10-30 16:44 160m - / -21 UI6A -16 / - 4 Partial capture
10-30 16:34 160m - / -20 R2SDZ -12 / - 7 Partial capture
10-30 16:23 160m - / - R2SDZ -20 / - 2 Partial capture
10-30 16:21 160m - / - IK0HBN -6 / - 3 Partial capture
10-29 21:29 160m - / -20 R5WW +8 / - 5 Partial capture
10-28 22:18 160m - / - RM5F -16 / - 4 Partial capture
10-28 21:45 160m - / - IK0HBN +9 / - 8 Partial capture
10-28 21:28 160m - / - IK0HBN +5 / - 9 Partial capture
10-28 21:21 160m - / 0 R5AJ +9 / - 7 ✓ Closing fragment
10-28 21:18 160m - / - IK0HBN +12 / - 13 Partial capture
10-27 21:42 80m - / -6 UN0GY -15 / - 2 ✓ Closing fragment
10-27 21:33 160m - / - RA3RDN -12 / - 2 Partial capture
10-27 21:27 160m - / - RA3RDN -11 / - 3 Partial capture
10-27 21:23 160m - / -10 R5AJ +9 / - 3 ✓ Closing fragment
10-25 21:42 160m - / - UA4FKT -2 / - 3 Partial capture
10-24 22:03 160m - / -21 UA3GX -4 / - 4 Partial capture
10-24 22:02 160m - / - RJ6B -6 / - 2 Partial capture
10-23 16:07 160m - / - RW1C -6 / - 2 Partial capture
10-22 21:37 160m - / - R4FDK -5 / - 7 Partial capture
10-22 21:24 160m - / - R5AJ +13 / - 4 Partial capture
10-22 21:15 160m - / - R5AJ +10 / - 8 Partial capture
10-22 21:13 160m - / - RJ6B 0 / - 4 Partial capture
10-22 21:10 160m - / -2 4J3DJ 0 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

160m 
UTC    dB Audio  Message
161315 -15 1138  RW0UM RU3OW KO91
210415 +18  979  RW0UM S58T -17 (x6)
211615  +0  299  RW0UM SV2AEL KN10 (x3)
212330 +15  735  RW0UM S58T JN76 (x2)
212500  -4  299  RW0UM SV2AEL KN10 (x3)
80m 
UTC    dB Audio  Message
161615 -13 1445  RW0UM UB4FGK LO33
161615  +0 2460  RW0UM OH1MLZ KP23
161645 -13 1446  RW0UM UB4FGK LO33
161645  +3 2460  RW0UM OH1MLZ KP23
154100 -17 1573  RW0UM RN1ON LP04 (x5)
193200  -1 1662  RW0UM UA6MF KN97 (x2)
214045 -24  961  BH3FZG RW0UM RR73
214230 -14 2513  RW0UM UN0GY -06 (x2)
214445  -2 1232  RW0UM RX3ASQ KO95
40m 
UTC    dB Audio  Message
214900 -11 1532  RW0UM RA4UKL R-18 (x2)
214115  +0 2301  RW0UM LA9GX -14 (x2)
214415  -7 2027  RW0UM RZ4FWA LO23 (x3)
212645 -16 1529  RW0UM RA4UKL LO24 (x2)
213530 -16  904  RW0UM IZ5DKR JN53
155415  -4  445  RW0UM RJ3T -17 (x2)
220545 -11 1636  RW0UM IK6DLK JN63 (x2)
220815 -11 2794  RW0UM R2ASY KO85
20m 
UTC    dB Audio  Message
052630 -13 1848  RW0UM R9FAK 73
073300 -23 2226  RW0UM R2DX R-21 (x3)
074300  -1 2326  RW0UM RU6FS RR73
074300 -18 1742  RW0UM LA0FA JO59 (x2)
074900 -17 1970  RW0UM R3DHP KO95
075200  -7 1772  RW0UM CT1BWU IM59 (x7)

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

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