RT25RK — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia

Receiver-side FT8 activity involving RT25RK, decoded by SO8OO in southeastern Poland. 538 FT8 messages attributed to this token as transmitter, on 80m, 20m, 10m, across 8 UTC dates in the available aggregate history. Observed between 2026-07-02 and 2026-07-13.

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 538 FT8 messages attributed to RT25RK as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (68%), followed by 10 m (29%) and 80 m (3%). Most decodes (57%) fell within the six-hour window 04:00-10:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

538
Messages attributed
8
UTC dates decoded
84
Active 15-min windows
-14 dB
Estimated median S/N

Bands

80m · 14 20m · 367 10m · 157
First attributed message: 2026-07-02
Last attributed message: 2026-07-13 13:44 UTC

Observed FT8 message patterns

Attributed sample
538 messages
Active dates
8 UTC dates
Estimated median S/N
-14 dB
Estimated 10th-90th percentile
-20 to -3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 187, moderate (-15 to -9 dB) 231, strong (≥ -8 dB) 120.

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 RT25RK 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.

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 UTCBandRT25RK S/NCounterpartCounterpart S/NMsgsCapture
07-13 13:42 10m -7 / - <...> -9 / - 5 ✓ Closing fragment
07-13 13:36 10m -8 / - <...> - / - 4 ✓ Closing fragment
07-13 13:32 10m -14 / - <...> - / - 2 ✓ Closing fragment
07-13 13:21 10m -12 / - <...> - / - 3 ✓ Closing fragment
07-13 13:16 10m -14 / - <...> - / - 2 ✓ Closing fragment
07-13 13:11 10m -8 / - <...> -5 / - 3 ✓ Closing fragment
07-13 13:01 10m -3 / - R9ZAH - / - 3 ✓ Closing fragment
07-13 12:46 10m -8 / - <...> - / - 10 ✓ Closing fragment
07-13 12:40 10m -4 / - <...> -11 / - 4 ✓ Closing fragment
07-13 12:33 10m -5 / - <...> -18 / - 7 ✓ Closing fragment
07-13 12:21 10m -1 / - <...> - / - 3 ✓ Closing fragment
07-13 12:17 10m -1 / - F4LNM -6 / -8 4 Partial capture
07-13 12:17 10m -1 / - <...> +5 / - 3 ✓ Closing fragment
07-13 12:04 10m -4 / - <...> -18 / - 10 ✓ Closing fragment
07-13 08:46 10m -6 / - <...> - / - 3 ✓ Closing fragment
07-13 08:43 10m -16 / - <...> -16 / - 2 ✓ Closing fragment
07-13 06:44 20m -16 / - <...> - / - 4 ✓ Closing fragment
07-13 06:37 20m -16 / - <...> - / - 3 ✓ Closing fragment
07-13 06:26 20m -4 / - <...> -7 / - 2 ✓ Closing fragment
07-13 04:55 20m -16 / - <...> -7 / - 2 ✓ Closing fragment
07-13 04:52 20m -13 / - <...> - / - 3 ✓ Closing fragment
07-13 04:47 20m -15 / - <...> - / - 3 ✓ Closing fragment
07-13 04:36 20m -10 / - <...> -5 / - 3 ✓ Closing fragment
07-13 04:31 20m -12 / - <...> - / - 2 ✓ Closing fragment
07-13 04:25 20m -10 / - <...> - / - 2 ✓ Closing fragment
07-13 04:05 20m -11 / - <...> - / - 8 ✓ Closing fragment
07-13 04:01 20m -16 / - <...> +11 / - 3 ✓ Closing fragment
07-13 03:46 20m -20 / - RX6LN - / - 2 ✓ Closing fragment
07-13 03:38 20m -13 / - <...> - / - 5 ✓ Closing fragment
07-11 06:07 20m -10 / - <...> -16 / - 2 ✓ Closing fragment
07-11 06:02 20m -15 / - <...> -12 / - 3 ✓ Closing fragment
07-11 05:56 20m -16 / - <...> - / - 4 ✓ Closing fragment
07-11 05:34 20m -12 / - <...> - / - 2 ✓ Closing fragment
07-06 09:11 10m -13 / - <...> -10 / - 6 ✓ Closing fragment
07-05 11:27 10m +1 / - <...> - / - 3 ✓ Closing fragment
07-05 11:17 10m -2 / - <...> - / - 2 ✓ Closing fragment
07-05 11:04 10m +2 / - <...> - / - 5 ✓ Closing fragment
07-05 10:56 10m +1 / - <...> - / - 2 ✓ Closing fragment
07-05 06:07 20m -24 / - <...> -10 / - 2 ✓ Closing fragment
07-05 05:54 20m -24 / - <...> - / - 2 ✓ Closing fragment
07-04 12:14 20m -18 / - <...> - / - 3 ✓ Closing fragment
07-04 12:08 20m -23 / - <...> - / - 2 ✓ Closing fragment
07-04 12:02 20m -13 / - <...> - / - 3 ✓ Closing fragment
07-04 10:07 20m -16 / - <...> - / - 2 ✓ Closing fragment
07-04 09:43 20m -24 / - <...> -8 / - 2 ✓ Closing fragment
07-04 06:16 20m -14 / - <...> - / - 2 ✓ Closing fragment
07-04 05:57 20m -14 / - <...> - / - 3 ✓ Closing fragment
07-04 05:52 20m -14 / - YR50NADIA - / - 2 ✓ Closing fragment
07-04 05:43 20m -13 / - <...> - / - 4 ✓ Closing fragment
07-04 05:36 20m -12 / - <...> -12 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

10m 
UTC    dB Audio  Message
133315  -9 1335  <...> RT25RK RR73
133445 -12 1335  CQ RT25RK (x2)
133645  -7 1335  <...> RT25RK RR73 (x3)
133845 -20 1335  CQ RT25RK
133945 -10 1335  <...> RT25RK 73 (x5)
134430 -16 1737  <RT25RK> DN9ZZ JO32
134430  -9 1335  RT25RK <...> 73
134445 -10 1336  CQ RT25RK
20m 
UTC    dB Audio  Message
064430 -14 1078  <...> RT25RK (x3)
064830 -14 1028  CQ RT25RK (x2)
065030 -15 1028  <...> RT25RK RR73
065100  -7 1028  CQ RT25RK (x9)
80m 
UTC    dB Audio  Message
183100 -10 1965  <...> RT25RK RR73
183145  +1  782  RT25RK <...> RR73
183530 -14 1965  <...> RT25RK RR73
183545  +1 1798  <RT25RK> R3RB LO03
183545  +6  951  RT25RK <...> 73
183615  +3 1799  RT25RK R3RB LO03 (x3)
183730 -14 1965  <...> RT25RK RR73 (x5)
184030 -13 2304  CQ RT25RK (x2)

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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