RY9C — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving RY9C, decoded by SO8OO in southeastern Poland. 1,546 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 76 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-07.
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 1,546 FT8 messages attributed to RY9C as the transmitting token by decoded message structure across 76 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (37%), followed by 160 m (22%) and 40 m (21%). Most decodes (74%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -6.3 dB.
Overview
Bands
Last attributed message: 2026-10-07 15:20 UTC
Observed FT8 message patterns
- Attributed sample
- 1,546 messages
- Active dates
- 76 UTC dates
- Estimated median S/N
- -6.3 dB
- Estimated 10th-90th percentile
- -17 to +5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 197, moderate (-15 to -9 dB) 449, strong (≥ -8 dB) 900.
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 RY9C 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 RY9C
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
- LO96 · 319 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,547 km (approx.)
- Last such locator decoded
- 2026-10-07 15:19 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 | RY9C S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-07 15:19 | 80m | -5 / - | R8KAW/P | - / -11 | 3 | ✓ Closing fragment |
| 10-06 15:41 | 160m | -13 / - | R9CS/P | - / -3 | 18 | ✓ Closing fragment |
| 10-06 15:37 | 160m | -24 / - | R9CS/P | - / - | 3 | Partial capture |
| 10-06 15:30 | 160m | -18 / - | R9CS/P | - / - | 6 | Partial capture |
| 10-06 15:27 | 160m | -22 / - | R9CS/P | - / - | 3 | Partial capture |
| 10-06 15:19 | 160m | -16 / - | R9CS/P | - / -6 | 6 | Partial capture |
| 10-06 04:21 | 40m | -5 / - | C5R | - / - | 6 | Partial capture |
| 10-06 04:17 | 40m | -11 / - | R9CS/P | - / +2 | 5 | ✓ Closing fragment |
| 10-06 02:51 | 80m | -2 / - | N6PSE | - / - | 4 | Partial capture |
| 10-06 02:49 | 80m | -7 / - | R9CS/P | - / +4 | 4 | ✓ Closing fragment |
| 10-05 16:31 | 160m | -15 / - | R9CS/P | - / +1 | 7 | ✓ Closing fragment |
| 10-03 21:05 | 80m | - / - | OZ1HPS | -6 / - | 15 | Partial capture |
| 10-03 21:05 | 80m | -4 / -10 | RK3YWS/P | 0 / -8 | 8 | ✓ Full exchange observed |
| 10-03 21:00 | 80m | -5 / - | RK3YWS/P | - / - | 3 | Partial capture |
| 10-03 20:44 | 160m | -15 / - | RK3YWS/P | - / -9 | 15 | Partial capture |
| 10-03 20:13 | 80m | - / - | R3KDT | +4 / - | 2 | Partial capture |
| 10-03 19:57 | 80m | -3 / -8 | RY2FAP | +12 / -10 | 3 | ✓ Full exchange observed |
| 10-03 16:45 | 160m | -18 / - | RO2E/P | - / -18 | 2 | ✓ Closing fragment |
| 10-03 13:27 | 80m | - / 0 | RO2E/P | -16 / - | 4 | Partial capture |
| 10-03 13:14 | 80m | - / - | R2SDZ | -6 / - | 3 | Partial capture |
| 10-02 17:05 | 160m | -19 / - | UA9KBC | - / -17 | 2 | ✓ Closing fragment |
| 10-02 17:03 | 160m | - / - | LY2BNL | -13 / - | 4 | Partial capture |
| 10-02 17:02 | 160m | -20 / -21 | HA8EV | -1 / - | 4 | ✓ Closing observed |
| 10-02 16:58 | 160m | -15 / - | R9CS/P | - / -13 | 4 | ✓ Closing fragment |
| 10-02 16:13 | 160m | -12 / - | UA9YDR | - / -6 | 2 | Partial capture |
| 10-01 01:56 | 80m | -1 / - | SQ100PKP | - / -16 | 2 | Partial capture |
| 10-01 01:54 | 80m | -8 / -3 | G1CEC | -9 / -9 | 5 | ✓ Full exchange observed |
| 10-01 01:52 | 80m | +1 / - | UA9JTJ/9 | - / - | 3 | Partial capture |
| 09-30 18:20 | 80m | - / - | IU1VQG | -4 / - | 3 | Partial capture |
| 09-30 18:18 | 80m | +1 / - | R8KAA | - / -8 | 5 | ✓ Closing fragment |
| 09-28 01:19 | 80m | -2 / - | R9CS/P | -10 / -2 | 5 | ✓ Full exchange observed |
| 09-27 02:50 | 80m | -12 / -16 | CT7AUT | -6 / -17 | 6 | ✓ Full exchange observed |
| 09-27 02:48 | 80m | - / - | EC3A | 0 / - | 2 | Partial capture |
| 09-27 02:47 | 80m | -17 / -5 | LA9GX | +16 / -1 | 5 | ✓ Full exchange observed |
| 09-27 02:46 | 80m | -10 / +6 | OH1TSM | +1 / -2 | 5 | ✓ Full exchange observed |
| 09-27 02:45 | 80m | -12 / - | UC6W | - / - | 3 | Partial capture |
| 09-27 01:49 | 80m | +10 / +1 | R4AGE | -5 / -6 | 4 | ✓ Full exchange observed |
| 09-27 01:45 | 80m | +6 / -9 | UA6Q/M | +15 / -2 | 3 | Partial capture |
| 09-27 01:43 | 80m | +10 / - | PP1DX | - / -22 | 4 | ✓ Closing fragment |
| 09-26 18:42 | 160m | -11 / - | UB1WAE | - / -15 | 5 | ✓ Closing fragment |
| 09-26 18:29 | 80m | 0 / - | UB8CQC | - / -3 | 5 | ✓ Closing fragment |
| 09-26 18:24 | 80m | - / -1 | UF3T | 0 / - | 5 | Partial capture |
| 09-26 18:09 | 80m | - / - | RK6MC | -7 / - | 4 | Partial capture |
| 09-26 18:09 | 80m | - / -5 | RU3KO | -21 / - | 2 | ✓ Closing fragment |
| 09-26 18:03 | 160m | -8 / - | RN1NEB | - / -11 | 2 | ✓ Closing fragment |
| 09-26 17:54 | 160m | -8 / -6 | UA1A | -19 / -14 | 3 | ✓ Full exchange observed |
| 09-26 17:31 | 80m | -5 / -4 | RA6HIH | -10 / - | 4 | ✓ Closing observed |
| 09-26 17:28 | 80m | -4 / -3 | R3HH | -11 / 0 | 6 | ✓ Full exchange observed |
| 09-26 17:27 | 80m | -5 / -16 | DH3KM | +10 / - | 6 | ✓ Closing observed |
| 09-26 17:26 | 80m | -3 / -2 | R3PLA | -10 / -6 | 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 211315 -4 1131 RY9C OZ1HPS JO45 (x2) 031345 +6 712 RY9C RM5F KO85 024945 -7 2498 R9CS/P RY9C +04 (x3) 025100 +5 3016 RY9C RR73; R2OM <...> +00 025115 -6 2498 R9CS/P RY9C 73 025145 -4 2498 N6PSE RY9C LO96 (x4) 151915 -5 1381 R8KAW/P RY9C LO96 (x3)
UTC dB Audio Message 154245 -10 1593 R9CS/P RY9C LO96 (x15)
UTC dB Audio Message 142745 -8 2036 R8PG/P RY9C RR73 125445 -9 1665 RY9C SP7ROM JO91 041745 -13 2242 R9CS/P RY9C +02 (x4) 042100 -6 546 RY9C RR73; UA3UBT <...> +20 042115 -9 1048 R9CS/P RY9C 73 042145 -11 1048 C5R RY9C LO96 (x6) 042515 -8 1048 R9CS/P RY9C R-02
UTC dB Audio Message 032845 -9 666 HK3TY RY9C -05 032900 -8 2793 RY9C HK3TY R-10 032915 -2 666 HK3TY RY9C RR73 033145 -10 666 AK7W RY9C -18 (x4) 033445 -6 667 UW5ESX RY9C -13 (x2) 033745 +1 667 KA0BOJ RY9C R-20 (x2) 051100 -3 1014 RC1TF RY9C -04 (x2) 045915 -21 1963 <...> RY9C -16 050000 -3 1950 RY9C F5RRS JN36
UTC dB Audio Message 094730 -1 693 RY9C EA3ADX -10 (x4) 101745 -4 498 RY9C TK5K R-02 (x2) 142745 +8 2751 RY9C IV3DXW JN65 (x3) 123045 -12 2605 <...> RY9C -20 (x6)
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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