F4HEA — 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 F4HEA, decoded by SO8OO in southeastern Poland. 863 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 64 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-20.
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 863 FT8 messages attributed to F4HEA as the transmitting token by decoded message structure across 64 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (71%), followed by 20 m (16%) and 10 m (10%). Most decodes (80%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (80%); the estimated median was -3 dB.
Overview
Bands
Last attributed message: 2026-10-20 20:04 UTC
Observed FT8 message patterns
- Attributed sample
- 863 messages
- Active dates
- 64 UTC dates
- Estimated median S/N
- -3 dB
- Estimated 10th-90th percentile
- -10.8 to +5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 22, moderate (-15 to -9 dB) 149, strong (≥ -8 dB) 692.
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 F4HEA 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 F4HEA
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
- JN37 · 550 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,116 km (approx.)
- Last such locator decoded
- 2026-10-20 20:04 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 | F4HEA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-20 20:03 | 40m | +8 / - | R1CBW | - / - | 3 | Partial capture |
| 10-20 20:02 | 40m | -4 / -9 | PD1AQL | -6 / - | 4 | ✓ Closing observed |
| 10-20 19:55 | 40m | -6 / - | W9HT/VP9 | - / - | 4 | Partial capture |
| 10-18 18:50 | 40m | -4 / - | PD3JB | - / - | 2 | Partial capture |
| 10-18 18:46 | 40m | 0 / - | ON4KBU | - / - | 2 | Partial capture |
| 10-18 18:44 | 40m | -2 / - | PH9OY | - / 0 | 2 | ✓ Closing fragment |
| 10-18 18:40 | 40m | -3 / - | PE1NAO | - / -4 | 3 | ✓ Closing fragment |
| 10-18 18:37 | 40m | -5 / - | G0CLH | - / - | 3 | Partial capture |
| 10-18 18:35 | 40m | +1 / - | MW6YPO | - / -3 | 2 | ✓ Closing fragment |
| 10-18 18:32 | 40m | -1 / - | PD1HBL | - / - | 3 | Partial capture |
| 10-18 18:31 | 40m | +4 / - | GJ0KYZ | -4 / - | 3 | ✓ Closing observed |
| 10-18 18:30 | 40m | +10 / - | M7CYY | - / -2 | 2 | ✓ Closing fragment |
| 10-14 07:54 | 40m | - / -3 | OK1HEH | -15 / - | 3 | Partial capture |
| 10-14 07:30 | 40m | -11 / - | S55A | -10 / - | 3 | ✓ Closing observed |
| 10-14 07:30 | 40m | - / +3 | OT4R | -19 / - | 2 | Partial capture |
| 10-14 07:28 | 40m | - / -14 | YO3GNF | -8 / - | 3 | Partial capture |
| 10-13 19:51 | 40m | +1 / - | S57ACD | - / - | 3 | Partial capture |
| 10-13 19:49 | 40m | +2 / - | S52DD | - / +9 | 3 | ✓ Closing fragment |
| 10-13 19:48 | 40m | 0 / - | UR5SDB | - / +2 | 3 | ✓ Closing fragment |
| 10-13 19:43 | 40m | +1 / - | RX9ABI | - / -13 | 5 | ✓ Closing fragment |
| 10-13 19:39 | 40m | +6 / - | G0WTZ | - / - | 2 | Partial capture |
| 10-11 18:51 | 40m | +2 / - | ZL3RIK | - / - | 2 | Partial capture |
| 10-11 18:47 | 40m | +1 / - | ZL3RIK | - / - | 3 | Partial capture |
| 10-11 18:41 | 40m | 0 / - | OK1WCF | - / - | 4 | Partial capture |
| 10-11 18:38 | 40m | 0 / -11 | UT3UQJ | -16 / -4 | 5 | ✓ Full exchange observed |
| 10-11 18:32 | 40m | +1 / - | TA9EN | - / -18 | 3 | Partial capture |
| 10-11 18:25 | 40m | -4 / - | JA3FYC | - / - | 3 | Partial capture |
| 10-11 18:16 | 40m | -6 / - | HA8AR | - / - | 2 | Partial capture |
| 10-11 18:15 | 40m | -2 / - | G0CEZ | - / - | 2 | Partial capture |
| 10-11 18:09 | 40m | -8 / -15 | EU6AQ | -8 / -14 | 4 | ✓ Full exchange observed |
| 10-10 18:45 | 40m | +6 / - | SQ8NA | - / - | 4 | Partial capture |
| 10-10 18:43 | 40m | +10 / - | SP7ROH | - / -11 | 2 | Partial capture |
| 10-03 19:09 | 40m | +7 / - | G7JUR | - / - | 4 | Partial capture |
| 10-03 19:01 | 40m | - / -6 | IQ0AAX | -6 / - | 2 | ✓ Closing fragment |
| 10-03 18:49 | 40m | +3 / - | JI4JKO | - / - | 2 | Partial capture |
| 10-03 18:43 | 40m | +1 / +5 | II5GG | 0 / +5 | 5 | ✓ Full exchange observed |
| 10-02 19:55 | 40m | +16 / - | JA6CNL | - / - | 3 | Partial capture |
| 10-02 19:49 | 40m | +7 / - | JA0RUG | - / -22 | 5 | ✓ Closing fragment |
| 10-01 08:46 | 40m | -11 / - | FM6WAN | - / - | 2 | Partial capture |
| 09-26 19:29 | 40m | +3 / - | 2I0WMN | - / - | 2 | Partial capture |
| 09-20 19:44 | 80m | -17 / -9 | IQ0AAI | -5 / - | 8 | Partial capture |
| 09-20 19:36 | 80m | -16 / - | SN40KZE | - / +6 | 2 | Partial capture |
| 09-20 19:27 | 40m | +7 / - | PH82LIB | -6 / -3 | 4 | Partial capture |
| 09-20 19:15 | 40m | +1 / -7 | II7IAME | -2 / - | 6 | Partial capture |
| 09-20 18:42 | 80m | - / -10 | IQ0AAI | -4 / - | 6 | Partial capture |
| 09-20 18:26 | 40m | - / - | RZ4FWA | -14 / - | 2 | Partial capture |
| 09-20 18:23 | 40m | -1 / -12 | UT7NI | +4 / 0 | 5 | ✓ Full exchange observed |
| 09-20 18:19 | 40m | +1 / +3 | YU65AEC | +5 / -2 | 4 | Partial capture |
| 09-19 19:18 | 80m | -15 / - | 4L6EZ | - / - | 2 | Partial capture |
| 09-19 18:59 | 40m | +2 / - | JH5LCN | - / -25 | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 184630 -3 566 ON4KBU F4HEA JN37 185015 -3 566 PD3JB F4HEA JN37 (x2) 185230 -6 566 GI4OGS F4HEA JN37 195515 -6 567 W9HT/VP9 F4HEA JN37 (x4) 200200 -6 566 PD1AQL F4HEA JN37 200215 -2 821 F4HEA PD1AQL -09 (x2) 200300 -3 566 PD1AQL F4HEA 73 200330 +2 566 R1CBW F4HEA JN37 (x3)
UTC dB Audio Message 184400 -4 1351 F4HEA IQ0AAI -08 (x2) 193645 -16 531 SN40KZE F4HEA JN37 193830 +1 558 F4HEA II9IAGM -15 193845 -15 532 SN40KZE F4HEA R+06 (x2) 194215 -14 532 IQ0AAI F4HEA JN37 194430 -5 1351 F4HEA IQ0AAI -09 (x2) 194515 -17 532 IQ0AAI F4HEA JN37 194530 -5 1351 F4HEA IQ0AAI -15 (x5)
UTC dB Audio Message 084400 +4 602 GW0GTW F4HEA JN37 (x4) 084600 +3 602 EB3JT F4HEA +13 084615 +2 601 F4HEA EB3JT R-03 084630 +0 602 EB3JT F4HEA RR73 (x2) 084730 +5 602 F5IXN F4HEA -25 (x3) 085045 +3 601 9A60CBM F4HEA JN37 085200 -5 1917 F4HEA RW1CW KO59 (x2) 085615 +7 601 9A60CBM F4HEA JN37
UTC dB Audio Message 085215 -11 607 <...> F4HEA JN37 085400 +3 1252 F4HEA II7MGXX -14 (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.
Explore CW reception at SO8OOFT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee