F4CYH — 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 F4CYH, decoded by SO8OO in southeastern Poland. 2,574 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 48 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-11-05.
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 2,574 FT8 messages attributed to F4CYH as the transmitting token by decoded message structure across 48 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (32%), followed by 160 m (31%) and 80 m (26%). Most decodes (93%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16.4 dB.
Overview
Bands
Last attributed message: 2026-11-05 21:54 UTC
Observed FT8 message patterns
- Attributed sample
- 2,574 messages
- Active dates
- 48 UTC dates
- Estimated median S/N
- -16.4 dB
- Estimated 10th-90th percentile
- -23 to -7.2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,446, moderate (-15 to -9 dB) 800, strong (≥ -8 dB) 328.
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 F4CYH 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 F4CYH
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
- JN26 · 1,897 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,298 km (approx.)
- Last such locator decoded
- 2026-11-05 21:54 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 | F4CYH S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-05 21:01 | 160m | - / -17 | SP7ENZ | -6 / - | 2 | Partial capture |
| 11-05 21:00 | 160m | -22 / -16 | E75CC | -3 / -2 | 4 | ✓ Full exchange observed |
| 11-05 20:48 | 160m | - / +1 | OK1KKI | -6 / - | 2 | ✓ Closing fragment |
| 11-05 20:31 | 160m | - / -8 | F4HER | -20 / - | 2 | ✓ Closing fragment |
| 11-05 20:27 | 160m | - / -9 | DF2NV | -4 / - | 2 | ✓ Closing fragment |
| 11-05 20:22 | 160m | -21 / - | UN0GY | - / - | 2 | Partial capture |
| 11-05 20:15 | 160m | -19 / - | G4ZOB | - / -20 | 4 | ✓ Closing fragment |
| 11-05 20:11 | 160m | -16 / -2 | DL6EL | -14 / -11 | 3 | ✓ Full exchange observed |
| 11-05 20:10 | 160m | -22 / -3 | DL6EI | -18 / -8 | 4 | ✓ Full exchange observed |
| 11-05 19:22 | 160m | -23 / -11 | SP2BDR | -4 / -10 | 5 | ✓ Full exchange observed |
| 11-05 19:20 | 160m | -15 / -10 | SP8VJV | +5 / +2 | 5 | ✓ Full exchange observed |
| 11-05 19:16 | 160m | -20 / - | EA2EWL | - / -3 | 2 | ✓ Closing fragment |
| 11-05 19:07 | 60m | -20 / -14 | GX6RAF/P | -12 / +9 | 4 | ✓ Full exchange observed |
| 11-05 19:03 | 60m | -21 / -5 | SQ2EAR | -19 / - | 2 | ✓ Closing observed |
| 11-05 19:00 | 60m | -17 / - | UR5WD | - / 0 | 3 | ✓ Closing fragment |
| 11-04 22:44 | 80m | -7 / - | TC2ATA | - / -12 | 4 | ✓ Closing fragment |
| 11-04 22:43 | 80m | +2 / - | DB2QM | - / -8 | 2 | Partial capture |
| 11-04 22:36 | 80m | -9 / -9 | SV5BYP | -13 / -9 | 5 | ✓ Full exchange observed |
| 11-04 22:33 | 80m | -2 / - | EA4D | - / -4 | 2 | ✓ Closing fragment |
| 11-04 22:31 | 80m | - / -1 | OE5TXF | +23 / - | 4 | ✓ Closing fragment |
| 11-04 22:29 | 80m | -9 / - | TJ1GD | - / - | 2 | Partial capture |
| 11-04 22:26 | 80m | - / -11 | 4O7CC | -2 / - | 2 | ✓ Closing fragment |
| 11-04 22:21 | 80m | -6 / -3 | DO1OAS | -7 / -15 | 3 | Partial capture |
| 11-04 22:17 | 160m | -22 / - | CT2GQA | - / - | 3 | Partial capture |
| 11-04 22:14 | 160m | - / -22 | E75CC | +4 / - | 2 | Partial capture |
| 11-04 21:45 | 160m | -19 / - | DK80NDS | - / - | 3 | Partial capture |
| 11-04 21:40 | 160m | -20 / - | RU3GF | - / -14 | 3 | Partial capture |
| 11-04 21:27 | 160m | -24 / -14 | 9A5AFP | -1 / -12 | 5 | ✓ Full exchange observed |
| 11-04 21:23 | 160m | -18 / - | SV9MBH | -24 / -16 | 8 | Partial capture |
| 11-04 21:21 | 160m | - / -14 | DL2VN | -12 / - | 3 | ✓ Closing fragment |
| 11-04 21:13 | 160m | - / -9 | OK1AWC | -3 / - | 2 | ✓ Closing fragment |
| 11-04 21:02 | 160m | -18 / - | SP2GJI | +13 / -4 | 3 | ✓ Closing observed |
| 11-04 20:54 | 160m | -17 / -24 | R2AFP | -18 / -24 | 5 | Partial capture |
| 11-04 20:50 | 160m | -21 / -17 | RA1WU | +8 / -5 | 6 | ✓ Full exchange observed |
| 11-04 20:47 | 160m | -18 / - | DJ9HX | -2 / +8 | 2 | Partial capture |
| 11-04 20:31 | 160m | -17 / - | G3AML | - / -21 | 2 | ✓ Closing fragment |
| 11-04 19:58 | 160m | -20 / - | F5BZB | -6 / +7 | 3 | Partial capture |
| 11-04 18:41 | 160m | -24 / -16 | IK4HPW | -22 / -17 | 4 | Partial capture |
| 11-04 18:35 | 160m | -20 / - | RT2H | - / - | 2 | Partial capture |
| 11-04 18:33 | 160m | -18 / - | ES2AJ | - / - | 2 | Partial capture |
| 11-04 18:30 | 160m | -24 / -13 | DL6WAB | -18 / -17 | 4 | ✓ Full exchange observed |
| 11-04 18:25 | 160m | -13 / -11 | OZ2LIN | -4 / -5 | 5 | ✓ Full exchange observed |
| 11-04 18:25 | 160m | -20 / - | DJ0FX | -13 / +8 | 3 | ✓ Closing observed |
| 11-04 18:02 | 160m | -24 / -15 | S51NA | -10 / -6 | 6 | ✓ Full exchange observed |
| 11-04 17:57 | 160m | - / -17 | SP7HKK | -2 / - | 4 | ✓ Closing fragment |
| 11-04 17:49 | 160m | - / -21 | OK1VKX | -22 / - | 2 | ✓ Closing fragment |
| 11-03 22:02 | 80m | -7 / +3 | IU1DXU | -8 / - | 4 | ✓ Full exchange observed |
| 11-03 21:59 | 80m | - / +3 | IK0YUJ | 0 / - | 3 | ✓ Closing fragment |
| 11-03 21:46 | 80m | -13 / -15 | UX0CZ | -16 / -11 | 6 | ✓ Full exchange observed |
| 11-03 21:44 | 80m | -10 / - | IU1HGN | - / -24 | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 212215 -16 1789 CQ F4CYH JN26 (x4) 212845 -23 1790 SP9JZT F4CYH JN26 213115 -24 1789 EI3EBB F4CYH 73 213600 -15 1771 CQ F4CYH JN26 (x9)
UTC dB Audio Message 190130 -19 1457 CQ F4CYH JN26 190230 -16 1457 UR5WD F4CYH R+00 (x2) 190345 -19 1412 F4CYH SQ2EAR R-05 190400 -21 1457 SQ2EAR F4CYH RR73 190530 -18 1457 CQ F4CYH JN26 (x5) 190745 -14 809 F4CYH GX6RAF/P IO91 190800 -18 1457 GX6RAF/P F4CYH +09 190815 -9 809 F4CYH GX6RAF/P R-14 190830 -22 1457 GX6RAF/P F4CYH RR73 191200 -21 1457 CQ F4CYH JN26
UTC dB Audio Message 224000 -6 1272 CQ F4CYH JN26 224030 -1 1272 EI2HF F4CYH JN26 224100 -2 1272 CQ F4CYH JN26 (x4) 224300 +1 1272 DB2QM F4CYH -08 (x2) 224400 -7 1272 TC2ATA F4CYH -12 (x4) 224630 -8 1272 F4MID F4CYH -23 224700 -10 1272 CQ F4CYH JN26 (x2)
UTC dB Audio Message 204515 -2 1947 CQ F4CYH JN26 (x15)
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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