UB8CRM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Asiatic Russia Most frequent locator attributed to this token: MO06

Receiver-side FT8 activity involving UB8CRM, decoded by SO8OO in southeastern Poland. 15 FT8 messages attributed to this token as transmitter, on 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-06-19.

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 15 FT8 messages attributed to UB8CRM as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was -19 dB; no usual signal pattern is inferred.

Overview

15
Messages attributed
4
UTC dates decoded
5
Active 15-min windows
-19 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-06-19 15:49 UTC

Observed FT8 message patterns

Attributed sample
15 messages
Active dates
4 UTC dates
Estimated median S/N
-19 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 5, strong (≥ -8 dB) 0.

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).

Most frequent locator attributed to UB8CRM

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
MO06 · 10 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
2,670 km (approx.)
Last such locator decoded
2026-06-19 15:49 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 UTCBandUB8CRM S/NCounterpartCounterpart S/NMsgsCapture
09-17 16:44 40m - / -6 RA9SJG -16 / - 2 ✓ Closing fragment
09-17 16:24 40m - / -17 UA6ANQ 0 / - 2 ✓ Closing fragment
09-17 05:39 40m - / -21 R3KJF -4 / - 3 ✓ Closing fragment
09-16 14:21 40m - / -5 UB4FGK -16 / - 4 ✓ Closing fragment
09-16 14:15 40m - / - RZ6AOJ -8 / - 2 ✓ Closing fragment
09-15 17:14 40m - / -4 R2SN +2 / - 2 ✓ Closing fragment
09-15 17:03 40m - / - R3KHR +5 / - 3 Partial capture
09-15 16:51 40m - / -10 R1WBW -1 / - 3 ✓ Closing fragment
09-15 16:50 40m - / -10 UA3NFG -17 / - 2 ✓ Closing fragment
09-15 16:41 40m - / -13 RJ6ON +1 / - 2 ✓ Closing fragment
09-14 17:39 40m - / -18 UB6OAJ -3 / - 3 ✓ Closing fragment
09-14 17:37 40m - / -10 RL3FA -2 / - 3 ✓ Closing fragment
09-14 17:28 40m - / - R6ZEJ +7 / - 2 Partial capture
09-14 17:27 40m - / - R2ASY -12 / - 2 Partial capture
09-14 17:25 40m - / -4 R3UAF -3 / - 3 ✓ Closing fragment
09-14 17:22 40m - / -22 RU3OZ 0 / - 5 ✓ Closing fragment
09-14 17:20 40m - / -14 RG5A +3 / - 3 ✓ Closing fragment
09-14 17:17 40m - / -6 RA3TVW -3 / - 3 ✓ Closing fragment
09-14 05:36 40m - / -16 RX3DQX -3 / - 3 Partial capture
09-14 03:48 40m - / - R4ML -10 / - 2 ✓ Closing fragment
09-14 03:35 40m - / -12 RT7N -6 / - 2 Partial capture
09-14 03:35 40m - / -10 R5AV 0 / - 3 ✓ Closing fragment
08-22 05:30 20m - / - RA3ZDU -2 / - 4 Partial capture
08-10 18:16 20m - / -22 G3VCQ +10 / - 3 Partial capture
08-06 19:11 20m - / -16 R3UAX -3 / - 2 ✓ Closing fragment
07-31 03:57 20m - / -14 RT6C +20 / - 2 ✓ Closing fragment
07-31 03:24 20m - / -8 IK0FUX +9 / - 2 ✓ Closing fragment
07-29 18:19 20m - / -15 9A6NTK -4 / - 2 ✓ Closing fragment
07-19 18:02 20m - / -19 RX4SA -8 / - 2 ✓ Closing fragment
07-19 17:55 20m - / +2 <...> -14 / - 2 Partial capture
07-18 02:56 20m - / -12 RV6BH -10 / - 2 ✓ Closing fragment
07-07 18:39 20m - / +1 RL2Y -15 / - 2 Partial capture
07-07 17:59 20m - / -13 RA0SCA -9 / - 2 Partial capture
06-30 17:59 20m - / -14 GB2WWA +8 / - 2 Partial capture
06-27 18:52 40m - / -5 R3DFC -6 / - 2 ✓ Closing fragment
06-27 18:51 40m - / -13 UA3PTK -14 / - 2 ✓ Closing fragment
06-27 18:33 40m - / - RA3BY -18 / - 2 Partial capture
06-24 14:36 20m - / -14 UN0GY -8 / - 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
141845 -15  833  UB8CRM UB4LDD -20
142145 -16 2143  UB8CRM UB4FGK LO33 (x4)
053900  +0  979  UB8CRM R3KJF KO91 (x3)
162445  +0 1896  UB8CRM UA6ANQ -17 (x2)
162845 -10 2241  UB8CRM RA4ADF -11
163415 -16 1792  UB8CRM UB4CLH -20
163445  +1  738  UB8CRM R6CW -13
164430 -16 1981  UB8CRM RA9SJG -06 (x2)
20m
UTC    dB Audio  Message
032400  +9 2962  UB8CRM IK0FUX -08 (x2)
035545  -4 1611  UB8CRM RX6ABW RR73
035745 +20 2786  UB8CRM RT6C -14 (x2)
191130  -4 2017  UB8CRM R3UAX -16 (x2)
181630  +6 2255  UB8CRM G3VCQ -22 (x3)
180930 -14 1594  UB8CRM IZ6BYS R-15
053030  -2 2755  UB8CRM RA3ZDU KO90 (x4)

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