F4CQA — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving F4CQA, decoded by SO8OO in southeastern Poland. 10 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-19 and 2026-09-20.
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 10 FT8 messages attributed to F4CQA as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (90%), followed by 40 m (10%). In this small sample, the estimated median decoder S/N was -15 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-20 08:14 UTC
Observed FT8 message patterns
- Attributed sample
- 10 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -15 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 3.
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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with F4CQA in decoded directed-looking exchanges:
Most frequent locator attributed to F4CQA
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
- JN17 · 6 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,401 km (approx.)
- Last such locator decoded
- 2026-09-20 06:54 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 | F4CQA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-20 08:03 | 40m | - / - | UX7QV | +1 / - | 7 | Partial capture |
| 09-20 08:01 | 40m | - / +7 | DJ0MAB | -15 / - | 3 | Partial capture |
| 09-20 07:00 | 80m | - / -3 | DO5WG | -19 / - | 2 | Partial capture |
| 09-19 22:35 | 80m | -13 / +3 | ON4MAP | -8 / -2 | 5 | ✓ Full exchange observed |
| 09-19 22:33 | 80m | -10 / - | R2BFU | - / - | 3 | Partial capture |
| 09-19 22:30 | 80m | -8 / +2 | OK1UOZ | 0 / +6 | 4 | ✓ Full exchange observed |
| 09-06 13:50 | 40m | - / +3 | DL9PN | -4 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 135045 -2 2794 F4CQA DL9PN JN39 (x2) 080130 -16 1873 F4CQA DJ0MAB R+07 (x3) 080330 +1 1873 F4CQA UX7QV KN29 (x7) 081000 -23 1679 F4CQA SH5RJX JO78 081445 -13 994 SH5RJX F4CQA -05
UTC dB Audio Message 223145 +1 1627 F4CQA OK1UOZ 73 223300 -8 1334 R2BFU F4CQA JN17 (x3) 223430 -15 1334 CQ F4CQA JN17 (x2) 223515 -6 553 F4CQA ON4MAP JO20 223515 -10 2644 F4CQA OM1AGE JN88 223530 -10 1334 ON4MAP F4CQA -02 223545 -13 554 F4CQA ON4MAP R+03 223600 -16 1334 ON4MAP F4CQA RR73 223615 -5 553 F4CQA ON4MAP 73 065400 -22 1653 CQ F4CQA JN17 070030 -14 1020 F4CQA DO5WG JO40 (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.
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