YO8RCA — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving YO8RCA, decoded by SO8OO in southeastern Poland. 410 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 31 UTC dates in the available aggregate history. Observed between 2026-06-18 and 2026-11-03.
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 410 FT8 messages attributed to YO8RCA as the transmitting token by decoded message structure across 31 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (59%), followed by 80 m (27%) and 20 m (10%). Most decodes (64%) fell within the six-hour window 03:00-09:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (85%); the estimated median was -1 dB.
Overview
Bands
Last attributed message: 2026-11-03 20:39 UTC
Observed FT8 message patterns
- Attributed sample
- 410 messages
- Active dates
- 31 UTC dates
- Estimated median S/N
- -1 dB
- Estimated 10th-90th percentile
- -10 to +9 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 49, strong (≥ -8 dB) 349.
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 YO8RCA 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.
Most frequent locator attributed to YO8RCA
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
- KN37 · 11 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 468 km (approx.)
- Last such locator decoded
- 2026-10-28 11:08 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 | YO8RCA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-03 21:04 | 60m | - / -12 | DK7ZT | -20 / - | 3 | ✓ Closing fragment |
| 11-03 21:03 | 60m | - / -3 | DK3JW | -7 / - | 4 | ✓ Closing fragment |
| 11-03 20:39 | 80m | -12 / - | YO3BMI | -16 / -15 | 2 | ✓ Closing observed |
| 11-03 20:25 | 80m | -5 / - | YO9FQT | - / -12 | 4 | Partial capture |
| 11-03 20:22 | 80m | - / -5 | IZ4ORF | -5 / - | 2 | ✓ Closing fragment |
| 11-03 20:18 | 80m | - / 0 | YO4BXX | +8 / - | 2 | ✓ Closing fragment |
| 11-03 20:16 | 80m | - / 0 | YO5QDI | 0 / - | 2 | ✓ Closing fragment |
| 11-03 20:09 | 80m | -4 / - | 9A4AA | - / -22 | 2 | ✓ Closing fragment |
| 11-03 20:05 | 80m | -4 / -4 | SV0LS | -8 / -12 | 6 | ✓ Full exchange observed |
| 11-03 19:59 | 80m | -7 / -9 | JH2FXK | -14 / -21 | 6 | ✓ Full exchange observed |
| 11-03 19:44 | 80m | -5 / -5 | IQ4JO | -4 / -15 | 6 | ✓ Full exchange observed |
| 11-02 06:52 | 40m | -7 / - | EA6AJW | - / -16 | 2 | ✓ Closing fragment |
| 11-02 06:47 | 40m | 0 / +1 | YO9HP | -2 / +2 | 4 | ✓ Full exchange observed |
| 11-02 06:46 | 40m | -3 / +8 | YO1BRANCUSI | -6 / -1 | 2 | Partial capture |
| 11-02 06:44 | 40m | +4 / -3 | LA3BO | +1 / -10 | 4 | ✓ Full exchange observed |
| 11-02 06:41 | 40m | 0 / -12 | IK4JPP | -6 / -9 | 5 | ✓ Full exchange observed |
| 11-02 06:40 | 40m | -2 / - | F1UNR | - / -23 | 4 | ✓ Closing fragment |
| 11-02 06:37 | 40m | 0 / - | GJ0KYZ | - / -10 | 3 | Partial capture |
| 11-01 20:18 | 60m | +2 / - | HA7NB | - / -2 | 2 | ✓ Closing fragment |
| 11-01 20:14 | 60m | -10 / - | OZ7FOC | - / -11 | 2 | ✓ Closing fragment |
| 11-01 19:44 | 60m | -4 / -14 | 9A4ZM | +1 / -11 | 6 | ✓ Full exchange observed |
| 11-01 19:43 | 60m | -3 / - | UN7EG | - / -19 | 2 | ✓ Closing fragment |
| 11-01 19:41 | 60m | +11 / +5 | SP2EWQ | -7 / - | 4 | ✓ Closing observed |
| 11-01 19:40 | 60m | +6 / - | 4O7CC | - / -20 | 2 | ✓ Closing fragment |
| 11-01 19:39 | 60m | +6 / -19 | GM6DX | -14 / -17 | 5 | Partial capture |
| 11-01 19:26 | 80m | - / -12 | SV2ROG | -18 / - | 2 | ✓ Closing fragment |
| 11-01 12:29 | 40m | -9 / - | DH1NGL | - / -10 | 2 | Partial capture |
| 11-01 12:12 | 40m | - / -8 | DH1NGL | +4 / - | 5 | Partial capture |
| 11-01 12:11 | 40m | -6 / -9 | EW6GB/P | +2 / -11 | 3 | ✓ Full exchange observed |
| 10-28 11:08 | 40m | -10 / -12 | HA1BF | -10 / -19 | 5 | ✓ Full exchange observed |
| 10-28 11:03 | 40m | -12 / +4 | YO1BRANCUSI | -6 / +2 | 3 | Partial capture |
| 10-28 10:36 | 40m | -14 / - | LZ2KSQ | - / -13 | 2 | Partial capture |
| 10-28 08:33 | 40m | -5 / - | PG4T | - / -21 | 3 | Partial capture |
| 10-28 08:21 | 40m | -3 / - | SP1EG | -17 / -10 | 4 | Partial capture |
| 10-28 08:21 | 40m | -6 / - | LZ2KSQ | - / -14 | 2 | ✓ Closing fragment |
| 10-28 08:17 | 40m | -6 / - | YO3OBB | -7 / +2 | 4 | ✓ Full exchange observed |
| 10-26 19:31 | 80m | +8 / -2 | YO7LMU | +7 / -3 | 5 | ✓ Full exchange observed |
| 10-26 19:04 | 80m | +1 / - | F1PBZ | - / -25 | 3 | Partial capture |
| 10-26 18:40 | 80m | +3 / - | YO8BJK | -12 / - | 2 | ✓ Closing observed |
| 10-26 18:40 | 80m | - / -8 | UA3GJM | -5 / - | 2 | Partial capture |
| 10-26 18:38 | 80m | +2 / - | YO8ROM | - / -2 | 2 | Partial capture |
| 10-26 18:29 | 80m | 0 / -5 | SP9UPH | +4 / -14 | 6 | ✓ Full exchange observed |
| 10-26 18:27 | 80m | +2 / +3 | YO4NF | +3 / +1 | 3 | ✓ Full exchange observed |
| 10-26 18:27 | 80m | +4 / -9 | OZ9FF | +2 / -21 | 3 | ✓ Full exchange observed |
| 10-19 07:51 | 40m | -16 / -13 | SP4GDW | -20 / -20 | 4 | ✓ Full exchange observed |
| 10-19 07:47 | 40m | -5 / - | ON3ANY | - / -17 | 3 | Partial capture |
| 10-19 07:44 | 40m | +1 / - | LB2WD | - / -20 | 3 | Partial capture |
| 10-19 07:34 | 40m | -12 / -17 | ON8LX | -11 / -13 | 10 | ✓ Full exchange observed |
| 10-18 17:49 | 80m | +8 / - | EW6BZ | - / -16 | 3 | Partial capture |
| 10-18 17:45 | 80m | -2 / +8 | YO3OBB | +12 / -5 | 4 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 194515 -1 1945 9A4ZM YO8RCA -11 194530 +4 1945 YO8RCA 9A4ZM R-14 194545 -8 1945 9A4ZM YO8RCA RR73 194600 +2 1945 YO8RCA 9A4ZM 73 201430 -8 1778 OZ7FOC YO8RCA -11 (x2) 201800 +1 1034 HA7NB YO8RCA -02 (x2) 210300 -10 1420 YO8RCA DK3JW JN67 (x3) 210430 -23 1901 YO8RCA DK7ZT -12 210430 -8 1420 YO8RCA DK3JW 73 210500 -16 1901 YO8RCA DK7ZT -12 (x2)
UTC dB Audio Message 200815 -6 1279 YO8RCA SV0LS 73 200900 -6 2180 9A4AA YO8RCA -22 (x2) 201630 -3 2225 YO8RCA YO5QDI R+00 (x2) 201800 +10 2796 YO8RCA YO4BXX R+00 (x2) 202200 -7 1944 YO8RCA IZ4ORF R-05 (x2) 202515 -3 1654 YO9FQT YO8RCA -12 (x4) 203915 -12 1501 YO3BMI YO8RCA -15 204000 -16 1500 YO8RCA YO3BMI 73
UTC dB Audio Message 064215 -10 2515 YO8RCA IK4JPP RR73 064230 -2 2516 IK4JPP YO8RCA 73 064430 +5 2879 LA3BO YO8RCA -10 064445 +3 2878 YO8RCA LA3BO R-03 064500 +4 2879 LA3BO YO8RCA RR73 064515 -1 2878 YO8RCA LA3BO 73 064645 -3 963 YO1BRANCUSI YO8RCA -01 064700 -6 963 YO8RCA YO1BRANCUSI R+08 064730 -6 1231 YO8RCA YO9HP +01 064845 +2 1231 YO9HP YO8RCA R+02 (x2) 065000 +1 1231 YO8RCA YO9HP RR73 065215 -8 2107 EA6AJW YO8RCA -16 (x2) 065400 -12 3010 YO8RCA OH6IH -03
UTC dB Audio Message 132945 -7 2571 YO8RCA JR6EZE R-17 133000 -8 2572 JR6EZE YO8RCA RR73 133015 -3 2571 YO8RCA JR6EZE 73 133100 -13 2323 OK5AG/P YO8RCA -14 (x2) 082345 -7 2081 YO8RCA F4IVG R-08 (x2) 154915 -8 1174 YO8RCA F5PBG IN78 (x4) 155300 -10 1379 YO8RCA JA4FKX 73 070345 -4 1468 VK3BOY YO8RCA -13 (x3)
UTC dB Audio Message 074745 -13 1097 YO8RCA F6ASS R-05 (x2) 092930 +9 556 YO8RCA Z34K R+15 (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.
CW
No CW receptions recorded for this callsign in the last 30 days.
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