K5RSB — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving K5RSB, decoded by SO8OO in southeastern Poland. 18 FT8 messages attributed to this token as transmitter, on 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-26 and 2026-08-27.
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 18 FT8 messages attributed to K5RSB as the transmitting token by decoded message structure across 2 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 -15 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 18 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -15 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 9, strong (≥ -8 dB) 4.
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 K5RSB in decoded directed-looking exchanges:
Most frequent locator attributed to K5RSB
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
- EM20 · 6 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 9,123 km (approx.)
- Last such locator decoded
- 2026-08-27 04:15 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 UTC | Band | K5RSB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-15 05:38 | 40m | - / -6 | PA2MD | -5 / - | 2 | ✓ Closing fragment |
| 09-13 05:07 | 40m | - / -13 | IW4DV | +9 / - | 3 | ✓ Closing fragment |
| 09-12 06:39 | 40m | - / -21 | GJ0KYZ | -12 / - | 4 | Partial capture |
| 09-12 06:21 | 40m | - / - | DK4RH | -2 / - | 7 | Partial capture |
| 09-12 06:19 | 40m | - / -16 | MI0TMW | -18 / - | 2 | ✓ Closing fragment |
| 09-12 06:16 | 40m | - / -12 | DK8WQ | -2 / - | 2 | Partial capture |
| 09-12 06:06 | 40m | - / -12 | ON1DGN | -22 / - | 2 | Partial capture |
| 09-12 05:53 | 40m | - / -7 | PA3T | 0 / - | 2 | ✓ Closing fragment |
| 09-12 05:18 | 40m | - / - | PD2RM | -14 / - | 2 | Partial capture |
| 09-12 05:06 | 40m | - / - | DB1TH | +11 / - | 3 | Partial capture |
| 09-12 05:03 | 40m | - / - | IU3VXW | +9 / - | 2 | Partial capture |
| 09-12 04:57 | 40m | - / - | S51CC | -8 / - | 2 | Partial capture |
| 09-12 04:04 | 40m | - / -16 | LZ2VQ | -8 / - | 2 | ✓ Closing fragment |
| 09-12 03:58 | 40m | - / -11 | F5PBG | +12 / - | 3 | ✓ Closing fragment |
| 09-12 03:55 | 40m | - / -11 | EA2DYB | +11 / - | 3 | ✓ Closing fragment |
| 09-11 05:23 | 40m | - / -9 | F5MSE | -8 / - | 2 | ✓ Closing fragment |
| 09-11 05:17 | 40m | - / -13 | DL2MIJ | +8 / - | 4 | ✓ Closing fragment |
| 09-11 05:12 | 40m | - / -15 | F4EXC | -2 / - | 2 | Partial capture |
| 09-11 05:04 | 40m | - / - | DL9YNG | -8 / - | 2 | Partial capture |
| 09-11 04:14 | 40m | - / -14 | IW8RQA | -1 / - | 3 | ✓ Closing fragment |
| 09-10 04:25 | 40m | - / -20 | SV1ENM | +2 / - | 2 | ✓ Closing fragment |
| 09-08 05:44 | 40m | - / - | IK1UGX | -2 / - | 2 | Partial capture |
| 09-04 02:57 | 40m | - / -7 | KC4DPT | -10 / - | 3 | ✓ Closing fragment |
| 09-04 02:40 | 40m | - / - | G5TV | -4 / - | 5 | Partial capture |
| 08-31 03:10 | 40m | - / -13 | EA5HM | -11 / - | 3 | ✓ Closing fragment |
| 08-30 05:40 | 20m | - / -9 | VK2ZR | -4 / - | 3 | ✓ Closing fragment |
| 08-29 05:27 | 20m | - / -2 | IS0AWZ | -16 / - | 3 | ✓ Closing fragment |
| 08-29 01:07 | 20m | - / -5 | W1TXT | -9 / - | 2 | Partial capture |
| 08-29 00:50 | 20m | - / - | HJ3ZOM | -7 / - | 7 | Partial capture |
| 08-28 08:50 | 20m | - / -14 | F1THK | -10 / - | 2 | ✓ Closing fragment |
| 08-28 08:39 | 20m | - / -15 | EA2DR | -8 / - | 3 | ✓ Closing fragment |
| 08-28 08:37 | 20m | - / - | F5LMJ | -7 / - | 3 | Partial capture |
| 08-28 08:27 | 20m | - / -15 | EA1BL | -11 / - | 2 | ✓ Closing fragment |
| 08-28 07:46 | 20m | - / -15 | F5URG | +4 / - | 2 | Partial capture |
| 08-28 06:22 | 20m | - / -12 | IZ8EYN | +6 / - | 3 | ✓ Closing fragment |
| 08-28 06:21 | 20m | - / -15 | S58WW | +13 / - | 2 | ✓ Closing fragment |
| 08-27 08:31 | 20m | - / -20 | ON4CJU | +2 / - | 5 | Partial capture |
| 08-27 07:50 | 20m | - / -13 | ON1DGN | -2 / - | 4 | Partial capture |
| 08-27 07:28 | 20m | - / -13 | 9A5E | 0 / - | 2 | ✓ Closing fragment |
| 08-27 07:21 | 20m | - / - | F4JQH | +1 / - | 3 | Partial capture |
| 08-27 06:07 | 20m | - / -15 | F5JQF | +5 / - | 3 | ✓ Closing fragment |
| 08-27 05:59 | 20m | - / -16 | DL3MIB | +11 / - | 4 | Partial capture |
| 08-27 05:54 | 20m | - / -9 | OS4K | +2 / - | 4 | Partial capture |
| 08-27 05:44 | 20m | - / - | M3TLJ | -9 / - | 3 | Partial capture |
| 08-27 04:25 | 20m | -18 / - | RI1FJL | - / -10 | 7 | Partial capture |
| 08-26 07:44 | 20m | - / -11 | UT7UJ | -15 / - | 4 | Partial capture |
| 08-26 07:42 | 20m | - / -20 | PD0WC | +3 / - | 3 | ✓ Closing fragment |
| 08-26 07:26 | 20m | - / -20 | PA3DTN | +1 / - | 4 | ✓ Closing fragment |
| 08-26 05:49 | 20m | - / - | R8CKD | -8 / - | 2 | Partial capture |
| 08-26 05:30 | 20m | - / -6 | EA5N | +10 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 062230 +1 2887 K5RSB DK4RH JO31 (x5) 063900 -12 1131 K5RSB GJ0KYZ IN89 (x4) 050700 +11 888 K5RSB IW4DV JN54 050700 +11 2853 K5RSB F4EXC -15 050730 +7 888 K5RSB IW4DV R-13 (x2) 053845 -6 843 K5RSB PA2MD -06 (x2)
UTC dB Audio Message 005100 -10 539 K5RSB HJ3ZOM RRR (x6) 010745 -9 1130 K5RSB W1TXT -05 (x3) 052730 -15 1378 K5RSB IS0AWZ -02 (x3) 054045 -5 2676 K5RSB VK2ZR -09 (x3)
UTC dB Audio Message 040145 +22 415 K5RSB SP3PLD JO72 (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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