YC0BYR — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving YC0BYR, decoded by SO8OO in southeastern Poland. 12 FT8 messages attributed to this token as transmitter, on 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-08-24 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 12 FT8 messages attributed to YC0BYR as the transmitting token by decoded message structure across 3 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 -16 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 12 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -16 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 6, 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).
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with YC0BYR in decoded directed-looking exchanges:
Most frequent locator attributed to YC0BYR
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
- OI33 · 7 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 10,219 km (approx.)
- Last such locator decoded
- 2026-08-24 15:41 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 | YC0BYR S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-16 14:03 | 40m | - / - | UA4FKT | -4 / - | 3 | Partial capture |
| 08-31 16:16 | 20m | - / - | ON6AA | +16 / - | 2 | ✓ Closing fragment |
| 08-31 14:19 | 20m | - / -16 | RW9WT | -7 / - | 4 | ✓ Closing fragment |
| 08-31 14:18 | 20m | - / - | UN7LEW | 0 / - | 2 | ✓ Closing fragment |
| 08-31 14:15 | 20m | - / -9 | LX1JH | +6 / - | 2 | ✓ Closing fragment |
| 08-31 14:11 | 20m | - / -15 | DC7WH | -10 / - | 2 | ✓ Closing fragment |
| 08-26 16:13 | 10m | - / -9 | SV1AMH | -22 / - | 2 | Partial capture |
| 08-26 16:08 | 10m | - / -4 | CT3IQ | -12 / - | 3 | ✓ Closing fragment |
| 08-26 16:06 | 10m | - / -4 | EA8TK | -12 / - | 2 | ✓ Closing fragment |
| 08-24 13:52 | 20m | -19 / -14 | GJ0KYZ | +11 / -18 | 4 | ✓ Full exchange observed |
| 08-24 13:30 | 20m | - / -12 | RY7G | +6 / - | 5 | ✓ Closing fragment |
| 08-24 13:16 | 20m | - / -16 | RA3TOS | +2 / - | 2 | ✓ Closing fragment |
| 08-24 12:57 | 20m | - / -16 | UA7T | -5 / - | 3 | ✓ Closing fragment |
| 08-24 12:53 | 20m | - / - | R2DN | -6 / - | 6 | Partial capture |
| 08-24 12:35 | 20m | - / -13 | RD7LC | -1 / - | 2 | ✓ Closing fragment |
| 08-23 19:48 | 80m | - / - | SP5ALV | +9 / - | 4 | Partial capture |
| 08-23 14:15 | 40m | - / - | UG4L | -16 / - | 2 | Partial capture |
| 08-11 16:30 | 40m | - / - | UW5KW | +10 / - | 4 | Partial capture |
| 08-10 15:41 | 20m | - / -12 | EI4KF | +2 / - | 2 | ✓ Closing fragment |
| 08-09 17:22 | 20m | - / - | ON8BB | -9 / - | 3 | Partial capture |
| 08-09 17:20 | 20m | - / -5 | LZ4VR | -14 / - | 2 | ✓ Closing fragment |
| 08-09 17:17 | 20m | - / - | LZ4VR | -19 / - | 3 | Partial capture |
| 08-09 17:13 | 20m | - / 0 | LZ2HA | -12 / - | 3 | ✓ Closing fragment |
| 08-09 17:11 | 20m | - / - | LZ4VR | -17 / - | 3 | Partial capture |
| 08-09 17:10 | 20m | - / -19 | UX7UU | -2 / - | 5 | ✓ Closing fragment |
| 08-09 17:03 | 20m | - / -11 | YO4NF | -8 / - | 3 | ✓ Closing fragment |
| 08-08 02:17 | 20m | - / -16 | CN8NS | -22 / - | 2 | ✓ Closing fragment |
| 08-02 15:52 | 20m | - / -14 | SM3ULU | -17 / - | 3 | Partial capture |
| 08-01 15:21 | 20m | - / - | DG5LEO | -15 / - | 3 | Partial capture |
| 07-30 15:16 | 20m | - / -15 | R4FDW | -13 / - | 12 | Partial capture |
| 07-27 14:42 | 20m | - / -6 | EA3HMM | -20 / - | 2 | Partial capture |
| 07-22 16:18 | 20m | - / -15 | DG3YDE | -10 / - | 2 | ✓ Closing fragment |
| 07-22 16:18 | 20m | - / -15 | EA7DJN | -20 / - | 2 | Partial capture |
| 07-22 16:15 | 20m | - / -13 | EC3A | -10 / - | 3 | ✓ Closing fragment |
| 07-22 16:14 | 20m | - / - | PE9JAN | -8 / - | 2 | ✓ Closing fragment |
| 07-17 01:16 | 20m | - / -13 | 9K2YM | -7 / - | 2 | ✓ Closing fragment |
| 07-16 14:51 | 20m | - / -15 | KF0YOB | -8 / - | 2 | Partial capture |
| 07-13 14:48 | 20m | - / -12 | F4BPO | -12 / - | 4 | ✓ Closing fragment |
| 07-13 13:54 | 20m | - / - | IK3JLT | -22 / - | 4 | Partial capture |
| 07-13 13:50 | 20m | - / - | IK3JLT | -19 / - | 3 | Partial capture |
| 07-12 16:09 | 40m | - / -10 | RK4FF | -6 / - | 2 | ✓ Closing fragment |
| 07-12 16:08 | 40m | - / - | UW5ZM | -10 / - | 2 | ✓ Closing fragment |
| 07-11 17:31 | 40m | - / -25 | OE3KLU | +12 / - | 2 | Partial capture |
| 07-11 17:01 | 40m | - / - | R2EC | +1 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 173130 +12 630 YC0BYR OE3KLU -20 160845 -8 536 YC0BYR UW5ZM KN57 (x2) 160945 -6 405 YC0BYR RK4FF -10 (x2) 163045 +10 2735 YC0BYR UW5KW KO30 (x4) 141530 -16 1094 YC0BYR UG4L LO33 (x2) 140330 -3 2051 YC0BYR UA4FKT LO23 (x3) 144030 +3 2680 YC0BYR UA3QNA -24
UTC dB Audio Message 141145 -10 1559 YC0BYR DC7WH R-15 (x2) 141315 -22 1828 YC0BYR R2BDR -17 141545 +8 1551 YC0BYR LX1JH R-09 (x2) 141715 -5 1550 YC0BYR R5AT 73 141845 +2 1188 YC0BYR UN7LEW MO13 (x2) 141945 -6 1547 YC0BYR RW9WT LO64 (x4) 143245 -13 1544 YC0BYR ON2AJ JO11 161600 +16 2461 YC0BYR ON6AA JO11 (x2)
UTC dB Audio Message 160630 -13 2309 YC0BYR EA8TK R-04 (x2) 160800 -11 1543 YC0BYR CT3IQ IM12 (x3) 161300 -20 1831 YC0BYR SV1AMH KM18 (x2)
UTC dB Audio Message 194815 +12 1495 YC0BYR SP5ALV KO02 (x4)
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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