SP4ASA — 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 SP4ASA, decoded by SO8OO in southeastern Poland. 121 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, across 14 UTC dates in the available aggregate history. Observed between 2026-06-26 and 2026-10-22.
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 121 FT8 messages attributed to SP4ASA as the transmitting token by decoded message structure across 14 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (77%), followed by 60 m (12%) and 40 m (12%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (94%); the estimated median was +2 dB.
Overview
Bands
Last attributed message: 2026-10-22 21:01 UTC
Observed FT8 message patterns
- Attributed sample
- 121 messages
- Active dates
- 14 UTC dates
- Estimated median S/N
- +2 dB
- Estimated 10th-90th percentile
- -7 to +11 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 7, strong (≥ -8 dB) 114.
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 SP4ASA 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 SP4ASA
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
- KO03 · 88 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 400 km (approx.)
- Last such locator decoded
- 2026-10-22 21:00 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 | SP4ASA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-22 21:00 | 80m | -8 / -13 | 4X1UF | -15 / -14 | 4 | ✓ Full exchange observed |
| 10-22 20:09 | 60m | - / -15 | EA5FD | -8 / - | 5 | ✓ Closing fragment |
| 10-22 20:09 | 60m | - / - | IK2RZQ | -15 / - | 3 | Partial capture |
| 10-22 19:42 | 80m | -2 / - | EA7TR | - / - | 3 | Partial capture |
| 10-16 19:20 | 40m | - / -8 | 4X1UF | -14 / - | 2 | Partial capture |
| 10-16 19:06 | 80m | +3 / - | IZ8XXE | - / - | 3 | Partial capture |
| 10-13 20:05 | 40m | - / - | DH1HF | -9 / - | 5 | Partial capture |
| 10-13 20:00 | 40m | - / - | DH1HF | -14 / - | 2 | Partial capture |
| 10-09 20:20 | 40m | - / -3 | SV5BYP | -3 / - | 3 | ✓ Closing fragment |
| 10-09 20:16 | 40m | -10 / - | SV6JHA | - / -15 | 3 | Partial capture |
| 10-09 20:13 | 40m | -6 / - | SP3GTP | - / - | 2 | Partial capture |
| 10-09 20:11 | 40m | -8 / - | OM7AMA | - / - | 2 | Partial capture |
| 10-09 20:09 | 40m | -8 / - | AO5CV | - / - | 3 | Partial capture |
| 10-09 19:48 | 80m | -3 / -8 | US2YW | 0 / 0 | 6 | ✓ Full exchange observed |
| 10-09 19:46 | 80m | +11 / -10 | YO5QDI | -8 / - | 3 | ✓ Closing observed |
| 10-07 19:52 | 80m | +6 / - | M0MLS | - / - | 2 | ✓ Closing fragment |
| 10-07 19:43 | 60m | - / -8 | F5PBG | -13 / - | 2 | ✓ Closing fragment |
| 10-07 19:43 | 60m | - / -17 | G0AZH | -10 / - | 3 | Partial capture |
| 10-07 19:37 | 60m | - / +1 | OK1BN | -14 / - | 4 | ✓ Closing fragment |
| 10-07 19:32 | 60m | - / -5 | EA1IOK | +1 / - | 5 | ✓ Closing fragment |
| 10-07 19:31 | 60m | - / - | YL2NX | +5 / - | 3 | Partial capture |
| 10-07 19:30 | 60m | - / -7 | HA5UK | -17 / - | 2 | Partial capture |
| 10-06 20:40 | 80m | - / -6 | EU1EU | +6 / - | 2 | ✓ Closing fragment |
| 10-06 20:38 | 80m | - / -4 | YO4NF | +5 / - | 3 | ✓ Closing fragment |
| 10-06 20:37 | 80m | +5 / - | TA4SSK | - / -13 | 2 | Partial capture |
| 10-06 20:36 | 80m | +3 / - | AO5CV | - / - | 2 | Partial capture |
| 10-04 22:36 | 80m | +6 / +1 | HA4MDE | -7 / - | 3 | Partial capture |
| 10-04 22:22 | 80m | +6 / - | SX2LGT | - / - | 3 | Partial capture |
| 10-04 22:20 | 80m | +12 / - | G7RHF | - / - | 2 | Partial capture |
| 10-03 21:59 | 40m | - / -20 | EX7CQ | -9 / - | 2 | ✓ Closing fragment |
| 10-01 18:19 | 40m | - / -10 | IU8RFW | -11 / - | 3 | Partial capture |
| 09-13 18:48 | 40m | -4 / - | IN3IZQ | -7 / - | 2 | ✓ Closing observed |
| 09-08 19:27 | 60m | -2 / - | EH1PDA | - / - | 3 | Partial capture |
| 09-08 19:25 | 60m | -4 / - | OH3JF | - / - | 3 | Partial capture |
| 09-08 19:24 | 60m | -7 / - | OH3GBW | - / - | 2 | Partial capture |
| 09-08 19:20 | 60m | -2 / +1 | 9A4ZM | -3 / +3 | 6 | ✓ Full exchange observed |
| 09-08 19:19 | 60m | 0 / -2 | SV1EKI | -2 / -5 | 5 | ✓ Full exchange observed |
| 08-28 20:25 | 80m | - / -5 | HB9FGO | -12 / - | 2 | ✓ Closing fragment |
| 08-28 20:25 | 80m | - / -13 | R2EA/P | -4 / - | 3 | ✓ Closing fragment |
| 08-28 20:22 | 80m | +4 / - | TA3GO | - / - | 2 | Partial capture |
| 08-28 20:20 | 80m | +1 / - | SM5KNV | - / - | 3 | Partial capture |
| 08-28 20:18 | 80m | -2 / - | 4X1UF | - / - | 2 | Partial capture |
| 08-15 20:10 | 80m | -2 / - | SN4K | - / - | 3 | Partial capture |
| 08-15 20:06 | 80m | +5 / - | JE6WOQ | - / - | 4 | Partial capture |
| 08-03 20:17 | 80m | +4 / - | OZ3FON | - / - | 3 | Partial capture |
| 08-03 20:15 | 80m | +5 / - | EA1B | - / - | 2 | Partial capture |
| 08-03 20:13 | 80m | +1 / - | OE9RWH | - / - | 2 | Partial capture |
| 08-03 20:12 | 80m | +7 / - | E70SZ | - / - | 2 | Partial capture |
| 08-03 20:07 | 80m | +11 / - | SV1EKI | - / - | 2 | Partial capture |
| 07-31 20:51 | 80m | +3 / -8 | M1WLK | -1 / -6 | 5 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 194915 -2 1131 SP4ASA US2YW R-08 194930 -6 1131 US2YW SP4ASA RRR 194945 +7 1131 SP4ASA US2YW 73 190630 +0 1131 IZ8XXE SP4ASA KO03 (x3) 194130 -5 1349 HB9DGZ SP4ASA KO03 194230 -4 1349 EA7TR SP4ASA KO03 (x3) 205900 -5 2046 SV9MBH SP4ASA KO03 210030 -8 2046 4X1UF SP4ASA KO03 210045 -15 537 SP4ASA 4X1UF -13 210100 -7 2046 4X1UF SP4ASA R-14 (x2)
UTC dB Audio Message 193845 -14 2035 SP4ASA OK1BN R+01 (x2) 194345 -11 585 SP4ASA G0AZH IO83 194345 -13 1664 SP4ASA F5PBG R-08 194415 -7 585 SP4ASA G0AZH IO83 194415 -13 1664 SP4ASA F5PBG 73 194445 -11 585 SP4ASA G0AZH R-17 200945 -14 2483 SP4ASA IK2RZQ JN45 200945 -11 771 SP4ASA EA5FD IM99 201015 -17 2483 SP4ASA IK2RZQ JN45 201015 -5 770 SP4ASA EA5FD IM99 201045 -13 2484 SP4ASA IK2RZQ JN45 201045 -11 771 SP4ASA EA5FD R-15 (x3)
UTC dB Audio Message 201630 -13 467 SV6JHA SP4ASA KO03 (x3) 202045 -4 600 SP4ASA SV5BYP -03 (x3) 200015 -16 1550 SP4ASA DH1HF JO30 (x7) 192045 -16 229 SP4ASA 4X1UF -08 (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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