F4EXC — 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 F4EXC, decoded by SO8OO in southeastern Poland. 659 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 48 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-23.
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 659 FT8 messages attributed to F4EXC as the transmitting token by decoded message structure across 48 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (61%), followed by 20 m (24%) and 10 m (15%). Most decodes (92%) fell within the six-hour window 04:00-10:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (68%); the estimated median was -5.1 dB.
Overview
Bands
Last attributed message: 2026-10-23 05:42 UTC
Observed FT8 message patterns
- Attributed sample
- 659 messages
- Active dates
- 48 UTC dates
- Estimated median S/N
- -5.1 dB
- Estimated 10th-90th percentile
- -14 to +6 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 42, moderate (-15 to -9 dB) 169, strong (≥ -8 dB) 448.
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 F4EXC 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.
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 | F4EXC S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-23 05:42 | 40m | -12 / -14 | SV1DKR | -13 / +1 | 4 | ✓ Full exchange observed |
| 10-23 05:41 | 40m | -4 / - | IZ8XXE | - / -4 | 2 | ✓ Closing fragment |
| 10-23 05:40 | 40m | -8 / - | TA2VUZ | - / -16 | 2 | Partial capture |
| 10-23 05:36 | 40m | -6 / - | V47NT | - / -17 | 3 | ✓ Closing fragment |
| 10-21 05:19 | 40m | -5 / - | HI3CH | - / -13 | 6 | Partial capture |
| 10-19 06:40 | 40m | -1 / +3 | GJ0KYZ | -2 / 0 | 4 | ✓ Full exchange observed |
| 10-19 06:39 | 40m | -6 / - | F5MDW | - / -2 | 2 | ✓ Closing fragment |
| 10-19 05:50 | 40m | -6 / - | R5BM/M | - / -6 | 2 | Partial capture |
| 10-19 05:46 | 40m | -4 / -7 | FM/VE3DZ | -11 / -6 | 5 | Partial capture |
| 10-15 05:10 | 40m | -10 / - | N5RN | - / -19 | 2 | Partial capture |
| 10-15 05:08 | 40m | -2 / +5 | 5B4AMM | -6 / 0 | 3 | ✓ Full exchange observed |
| 10-15 05:04 | 40m | -3 / - | EA5JFO | - / -8 | 2 | ✓ Closing fragment |
| 10-15 04:45 | 40m | -7 / - | RA9SJG | - / -13 | 3 | ✓ Closing fragment |
| 10-15 04:43 | 40m | - / -10 | SV2DXG | -11 / - | 2 | ✓ Closing fragment |
| 10-15 04:41 | 40m | - / -19 | RK9UE | -12 / - | 2 | ✓ Closing fragment |
| 10-15 04:36 | 40m | -4 / - | EP2AES | - / -18 | 2 | Partial capture |
| 10-12 06:40 | 40m | -11 / - | F4HKP | - / -8 | 5 | Partial capture |
| 10-12 06:16 | 40m | -7 / - | F4HKP | - / -17 | 12 | Partial capture |
| 10-12 06:14 | 40m | -2 / - | SN5N | - / -11 | 2 | ✓ Closing fragment |
| 10-12 06:11 | 40m | -8 / - | F4NGK | - / -11 | 2 | ✓ Closing fragment |
| 10-12 06:07 | 40m | 0 / -7 | LY5A | +6 / -2 | 4 | ✓ Full exchange observed |
| 10-12 06:05 | 40m | +4 / - | HK3TY | - / -9 | 2 | Partial capture |
| 10-12 06:04 | 40m | -6 / -9 | F4NHL | -19 / - | 2 | ✓ Closing observed |
| 10-12 06:01 | 40m | -4 / -21 | HB9ELE | +4 / -10 | 4 | ✓ Full exchange observed |
| 10-12 05:58 | 40m | -6 / -8 | YO2UKG | +2 / -16 | 23 | ✓ Full exchange observed |
| 10-12 03:16 | 40m | - / -20 | YY5EHT | -20 / - | 2 | Partial capture |
| 10-10 07:44 | 40m | -17 / - | W8CO | - / -15 | 3 | Partial capture |
| 10-06 06:23 | 40m | -10 / -10 | DL4ME | +10 / -4 | 3 | ✓ Full exchange observed |
| 10-06 06:18 | 40m | -8 / -11 | DG0KT | -12 / -12 | 5 | ✓ Full exchange observed |
| 10-06 06:13 | 40m | -10 / - | SQ8AZT | - / -2 | 2 | ✓ Closing fragment |
| 10-06 06:12 | 40m | -12 / - | AN5CV | - / 0 | 2 | ✓ Closing fragment |
| 10-06 06:10 | 40m | -4 / - | IR8PR | - / -15 | 2 | ✓ Closing fragment |
| 10-06 06:09 | 40m | -12 / - | RA3YAO | - / -15 | 3 | ✓ Closing fragment |
| 10-06 05:59 | 40m | +4 / -5 | RD3FY | -11 / -10 | 4 | ✓ Full exchange observed |
| 10-06 05:57 | 40m | -5 / - | YO3JW | - / -10 | 2 | ✓ Closing fragment |
| 10-06 05:54 | 40m | +8 / - | W5RBD | - / -17 | 2 | Partial capture |
| 10-05 06:13 | 40m | -8 / - | OH8GBO | - / -15 | 2 | ✓ Closing fragment |
| 10-03 12:21 | 10m | -22 / - | 3B8HE | - / -6 | 3 | ✓ Closing fragment |
| 10-03 12:11 | 10m | -17 / - | 5Z4RS | - / +2 | 2 | ✓ Closing fragment |
| 09-27 08:55 | 40m | -14 / - | F4NPE | - / -10 | 2 | ✓ Closing fragment |
| 09-27 08:53 | 40m | - / +3 | DK8EW | 0 / - | 2 | Partial capture |
| 09-27 08:51 | 40m | -14 / - | DG3YEV | - / -1 | 2 | Partial capture |
| 09-19 05:04 | 40m | -9 / -15 | HK3YL | -24 / - | 3 | ✓ Closing observed |
| 09-13 05:16 | 40m | 0 / - | V51WH | - / -16 | 6 | Partial capture |
| 09-13 05:14 | 40m | +1 / - | KI4NPG | - / -12 | 3 | ✓ Closing fragment |
| 09-13 05:10 | 40m | -1 / - | V51WH | - / -10 | 5 | Partial capture |
| 09-13 05:09 | 40m | -6 / - | OH5KNL | - / -13 | 2 | ✓ Closing fragment |
| 09-13 05:04 | 40m | 0 / -12 | SV8/F6BLP | -13 / -8 | 3 | Partial capture |
| 09-11 05:28 | 40m | -10 / - | ZL3TUX | - / - | 2 | ✓ Closing fragment |
| 09-11 05:24 | 40m | -8 / - | ZL1GMW | - / -15 | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 052215 -6 1942 HI3CH F4EXC -09 (x4) 053645 -4 2099 V47NT F4EXC -17 (x3) 054000 -10 1821 TA2VUZ F4EXC -16 (x2) 054115 -4 2427 IZ8XXE F4EXC -04 (x2) 054215 -12 1864 SV1DKR F4EXC +01 054230 -10 1863 F4EXC SV1DKR R-14 054245 -13 1864 SV1DKR F4EXC RR73 054300 -16 1863 F4EXC SV1DKR 73
UTC dB Audio Message 073745 -10 1183 F4EXC IZ3NVR R-07 (x2) 073915 -11 1811 9A2CD F4EXC RR73 074400 -8 1908 RU9AD F4EXC -15 (x2) 075345 -10 1254 F4EXC DN9AD JO52 085900 -10 1375 F4EXC EX8ABR R-15 (x2) 121100 -15 2135 5Z4RS F4EXC +02 (x2) 122100 -24 1540 3B8HE F4EXC -06 (x3) 122900 -6 2566 YB8XOB F4EXC RR73 125230 -13 744 F4EXC TL8GD R-01
UTC dB Audio Message 073415 -3 1129 VK3ARW F4EXC -10 (x2) 073545 +2 2357 ZL4TT F4EXC -15 (x2) 075145 -5 1975 VK3GZY F4EXC -19 (x2) 080400 -6 1832 LB0XJ F4EXC -04 071845 +16 398 ER1SKI/QRP F4EXC -11 (x3) 072030 -9 397 F4EXC ER1SKI/QRP R-05 072500 +14 2860 VK3HA F4EXC RR73 (x2) 080130 +5 2554 VK5RJ F4EXC -10 (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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