F4CWZ — 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 F4CWZ, decoded by SO8OO in southeastern Poland. 543 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 29 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-21.
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 543 FT8 messages attributed to F4CWZ as the transmitting token by decoded message structure across 29 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (86%), followed by 20 m (14%). Most decodes (98%) 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 (80%); the estimated median was -2 dB.
Overview
Bands
Last attributed message: 2026-10-21 05:50 UTC
Observed FT8 message patterns
- Attributed sample
- 543 messages
- Active dates
- 29 UTC dates
- Estimated median S/N
- -2 dB
- Estimated 10th-90th percentile
- -12 to +7 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 21, moderate (-15 to -9 dB) 88, strong (≥ -8 dB) 434.
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 F4CWZ 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 F4CWZ
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
- JN38 · 375 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,084 km (approx.)
- Last such locator decoded
- 2026-10-21 05:50 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 | F4CWZ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-21 05:25 | 40m | 0 / - | HI3CH | - / - | 3 | Partial capture |
| 10-21 05:20 | 40m | +3 / - | N2MHS | - / - | 4 | Partial capture |
| 10-21 04:25 | 40m | - / - | UR9QQ | -11 / - | 3 | Partial capture |
| 10-17 05:04 | 40m | -21 / - | W5RBD | - / - | 2 | Partial capture |
| 10-17 04:53 | 40m | -7 / - | YV6BXN | - / -15 | 3 | Partial capture |
| 10-17 04:51 | 40m | -6 / - | KN1OBI | - / - | 2 | Partial capture |
| 10-17 04:45 | 40m | 0 / - | W8WEJ | - / -9 | 2 | Partial capture |
| 10-17 04:42 | 40m | -3 / -20 | UR4QWW | -12 / - | 3 | ✓ Closing observed |
| 10-17 04:17 | 40m | -7 / - | KN1OBI | - / - | 3 | Partial capture |
| 10-17 04:13 | 40m | -6 / - | W4QWX | - / - | 2 | Partial capture |
| 10-17 04:11 | 40m | -16 / - | KN1OBI | - / - | 2 | Partial capture |
| 10-16 04:58 | 40m | -13 / - | SV5AZK | - / -18 | 3 | ✓ Closing fragment |
| 10-16 04:36 | 40m | -10 / - | N2LEE | - / -12 | 2 | ✓ Closing fragment |
| 10-16 04:32 | 40m | -17 / - | CO8CF | - / - | 2 | Partial capture |
| 10-16 04:26 | 40m | - / - | TA3NK | -1 / - | 8 | Partial capture |
| 10-16 04:22 | 40m | -3 / - | W5MMW | - / -16 | 3 | ✓ Closing fragment |
| 10-16 04:19 | 40m | -6 / - | CO8CF | - / - | 2 | Partial capture |
| 10-10 05:45 | 40m | -3 / -12 | TA2VUZ | -17 / -8 | 5 | ✓ Full exchange observed |
| 10-10 05:22 | 40m | -1 / - | 4O/DL1FDH | - / - | 2 | Partial capture |
| 10-10 05:19 | 40m | +5 / - | W5RBD | - / - | 3 | Partial capture |
| 10-10 05:18 | 40m | +1 / - | KJ4QVJ | - / - | 2 | Partial capture |
| 10-10 05:13 | 40m | +14 / - | NW2H | - / - | 3 | Partial capture |
| 10-10 05:12 | 40m | +12 / - | W5RBD | - / - | 2 | Partial capture |
| 10-10 05:07 | 40m | +2 / - | YY5EHT | - / -12 | 2 | Partial capture |
| 10-07 13:40 | 40m | - / - | PD0IFI | -8 / - | 2 | Partial capture |
| 10-07 13:37 | 40m | -7 / - | TM4GGR | - / -2 | 4 | ✓ Closing fragment |
| 10-03 05:54 | 40m | +2 / - | KT4DZ | - / -19 | 4 | ✓ Closing fragment |
| 10-03 05:49 | 40m | +3 / - | NN9DD | - / - | 2 | Partial capture |
| 09-28 05:10 | 40m | -8 / - | XE1ACA | - / - | 2 | Partial capture |
| 09-28 04:47 | 40m | -2 / - | N7NU/VP9 | - / -20 | 10 | Partial capture |
| 09-28 04:40 | 40m | +14 / - | NW2H | - / - | 3 | Partial capture |
| 09-28 04:39 | 40m | - / -1 | PA0ARR | -20 / - | 2 | Partial capture |
| 09-28 04:39 | 40m | +4 / - | K5WVF | - / - | 2 | Partial capture |
| 09-28 04:39 | 40m | - / - | EA3HMM | -8 / - | 4 | Partial capture |
| 09-28 04:38 | 40m | -1 / - | KF8EXX | - / -18 | 3 | ✓ Closing fragment |
| 09-28 04:36 | 40m | +10 / - | K1PAD | - / -6 | 3 | ✓ Closing fragment |
| 09-23 06:02 | 40m | -1 / -10 | DL9KM | -1 / - | 6 | ✓ Closing observed |
| 09-23 06:02 | 40m | +1 / +2 | GJ0KYZ | -7 / - | 4 | ✓ Closing observed |
| 09-23 06:01 | 40m | +1 / - | ZL3GK | - / -12 | 3 | ✓ Closing fragment |
| 09-23 04:55 | 40m | +5 / - | J48S | - / -13 | 3 | ✓ Closing fragment |
| 09-23 04:48 | 40m | +6 / - | KE5ETC | - / -19 | 3 | ✓ Closing fragment |
| 09-23 04:44 | 40m | -6 / - | KB5YNF | - / -13 | 4 | ✓ Closing fragment |
| 09-23 04:31 | 40m | -4 / - | KB5YNF | - / - | 2 | Partial capture |
| 09-23 04:28 | 40m | -2 / - | KS2D | - / -13 | 4 | ✓ Closing fragment |
| 09-23 04:27 | 40m | - / - | US3EW | +3 / - | 5 | Partial capture |
| 09-23 04:27 | 40m | - / - | RZ4FWA | -16 / - | 2 | Partial capture |
| 09-23 04:26 | 40m | +1 / -17 | R2EA/P | +5 / -5 | 6 | ✓ Full exchange observed |
| 09-23 04:26 | 40m | - / - | UR9QQ | -8 / - | 4 | Partial capture |
| 09-23 04:23 | 40m | -4 / - | AC0ZO | - / -11 | 5 | ✓ Closing fragment |
| 09-20 05:32 | 40m | +7 / - | N0BUZ | - / -8 | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 050400 -24 1741 W5RBD F4CWZ JN38 (x2) 050715 -15 248 W8SLR F4CWZ JN38 042530 -10 1242 F4CWZ UR9QQ KN77 (x3) 052030 -1 1152 N2MHS F4CWZ JN38 (x4) 052545 +0 1942 HI3CH F4CWZ JN38 (x3) 055015 -1 1242 K3DY F4CWZ JN38 045430 +1 388 F4CWZ RR73; EA4EWV <...> -02
UTC dB Audio Message 072945 +5 2438 Z31PM F4CWZ JN38 (x3) 073130 -8 979 VK4XK F4CWZ JN38 (x2) 094245 -8 1619 SP4AV F4CWZ JN38 164115 +4 829 RI1FJL F4CWZ JN38 (x4) 062845 -7 771 <...> F4CWZ R-09 064045 -2 1783 VK3FWR F4CWZ JN38 (x4)
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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