SP7AH — 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 SP7AH, decoded by SO8OO in southeastern Poland. 885 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 65 UTC dates in the available aggregate history. Observed between 2026-06-07 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 885 FT8 messages attributed to SP7AH as the transmitting token by decoded message structure across 65 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (53%), followed by 60 m (31%) and 40 m (12%). Most decodes (73%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (82%); the estimated median was +3.9 dB.
Overview
Bands
Last attributed message: 2026-10-23 18:24 UTC
Observed FT8 message patterns
- Attributed sample
- 885 messages
- Active dates
- 65 UTC dates
- Estimated median S/N
- +3.9 dB
- Estimated 10th-90th percentile
- -12 to +16.4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 41, moderate (-15 to -9 dB) 122, strong (≥ -8 dB) 722.
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 SP7AH 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 SP7AH
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
- KO00 · 352 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 84 km (approx.)
- Last such locator decoded
- 2026-10-23 18:05 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 | SP7AH S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-23 18:23 | 80m | +5 / - | LZ936BA | - / -5 | 4 | Partial capture |
| 10-23 18:09 | 80m | - / - | UA4FKT | -4 / - | 2 | Partial capture |
| 10-23 18:08 | 80m | +7 / 0 | SP9PLK | +6 / - | 5 | ✓ Full exchange observed |
| 10-23 17:45 | 80m | +8 / +10 | SP4VIT | -1 / +7 | 4 | ✓ Full exchange observed |
| 10-22 18:10 | 60m | - / +6 | DL3IKE | 0 / - | 2 | ✓ Closing fragment |
| 10-22 18:04 | 60m | - / - | ON6LEO | +7 / - | 3 | ✓ Closing fragment |
| 10-22 17:29 | 60m | -10 / -1 | F9IE | -3 / -5 | 6 | ✓ Full exchange observed |
| 10-22 17:20 | 60m | -8 / - | SP5GEO | - / -15 | 2 | ✓ Closing fragment |
| 10-22 17:18 | 60m | -8 / - | OH5YZ | - / -6 | 2 | ✓ Closing fragment |
| 10-22 17:13 | 60m | - / -8 | LZ1SAD | +1 / - | 3 | ✓ Closing fragment |
| 10-22 16:48 | 40m | - / - | R6DVV | -17 / - | 3 | Partial capture |
| 10-22 16:46 | 40m | - / -2 | PA7D | -14 / - | 2 | Partial capture |
| 10-19 20:28 | 40m | - / - | F4BYA | +1 / - | 4 | Partial capture |
| 10-18 21:09 | 60m | - / -3 | ON4LDZ | -10 / - | 3 | ✓ Closing fragment |
| 10-18 21:04 | 60m | - / -10 | G1HGD | -14 / - | 2 | ✓ Closing fragment |
| 10-18 20:49 | 60m | - / -5 | HB9PLH | -5 / - | 2 | ✓ Closing fragment |
| 10-18 20:22 | 60m | - / -6 | IK2CMI | -18 / - | 2 | ✓ Closing fragment |
| 10-18 19:48 | 40m | - / - | R7KEO | -13 / - | 3 | Partial capture |
| 10-18 19:47 | 40m | - / -3 | LA2GCA | -16 / - | 2 | ✓ Closing fragment |
| 10-16 21:52 | 40m | - / - | IU8RHZ | -17 / - | 2 | Partial capture |
| 10-16 19:55 | 40m | - / -7 | ON3MOH | -8 / - | 5 | Partial capture |
| 10-16 06:09 | 60m | 0 / - | VP2MAW | - / -23 | 7 | Partial capture |
| 10-16 05:37 | 80m | +4 / - | Z61DX | - / -1 | 3 | ✓ Closing fragment |
| 10-16 05:21 | 80m | +3 / - | R9CS/P | - / -20 | 8 | Partial capture |
| 10-16 05:14 | 80m | -16 / - | PJ4/DH8BQA | - / - | 2 | Partial capture |
| 10-16 05:10 | 80m | -8 / - | PJ4/DH8BQA | - / - | 2 | Partial capture |
| 10-16 05:08 | 80m | -12 / - | RD9M/3 | - / - | 4 | Partial capture |
| 10-15 06:02 | 40m | - / -10 | Z61DX | -2 / - | 2 | ✓ Closing fragment |
| 10-15 05:54 | 60m | -5 / - | HB9DWR | -24 / -17 | 4 | ✓ Closing observed |
| 10-15 05:34 | 60m | -12 / - | G0IOW | - / -7 | 3 | ✓ Closing fragment |
| 10-15 05:32 | 60m | -1 / - | SM0BRF | - / +7 | 2 | ✓ Closing fragment |
| 10-15 05:28 | 60m | +6 / -5 | G0ABI | +5 / +6 | 6 | ✓ Full exchange observed |
| 10-15 05:26 | 80m | +9 / +1 | OM3ZAS | 0 / - | 4 | ✓ Full exchange observed |
| 10-15 05:24 | 80m | +9 / -3 | PA1AW | -6 / -2 | 5 | ✓ Full exchange observed |
| 10-15 05:23 | 80m | +8 / -7 | G0BLB | -7 / - | 2 | Partial capture |
| 10-15 05:16 | 80m | - / - | G0BLB | -5 / - | 2 | Partial capture |
| 10-15 05:13 | 80m | +16 / -17 | II5GG | -2 / -5 | 6 | ✓ Full exchange observed |
| 10-15 05:03 | 80m | +3 / -6 | ON3MOH/P | 0 / -8 | 5 | ✓ Full exchange observed |
| 10-14 20:26 | 80m | +9 / - | SP5HZM | - / -3 | 4 | ✓ Closing fragment |
| 10-14 20:24 | 80m | +14 / - | UK8AEA | - / -20 | 4 | ✓ Closing fragment |
| 10-14 20:20 | 80m | +14 / - | UK8AEA | - / -17 | 2 | Partial capture |
| 10-14 20:18 | 80m | +6 / - | JA7BXS | - / -21 | 4 | Partial capture |
| 10-14 20:16 | 80m | +13 / -18 | JA0LFV | -18 / -16 | 5 | Partial capture |
| 10-14 20:11 | 80m | +5 / - | UN3P | - / -7 | 3 | ✓ Closing fragment |
| 10-14 19:47 | 40m | - / -6 | GU4WRP | -16 / - | 2 | ✓ Closing fragment |
| 10-14 18:40 | 80m | +8 / - | EC5M | -10 / -15 | 4 | ✓ Closing observed |
| 10-14 18:38 | 80m | +8 / - | OL900LTV | +1 / +4 | 3 | Partial capture |
| 10-14 18:34 | 80m | +5 / 0 | SP9KKA | 0 / - | 5 | ✓ Full exchange observed |
| 10-14 18:30 | 80m | +7 / +1 | SP7OK | +5 / - | 5 | ✓ Full exchange observed |
| 10-13 18:38 | 80m | +2 / - | UD8D | - / -11 | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 180115 +1 1503 R8CW/4 SP7AH -01 180515 +4 1715 CQ SP7AH KO00 180830 +9 1715 SP9PLK SP7AH +12 180845 +5 1294 SP7AH SP9PLK R+00 180900 +6 1715 SP9PLK SP7AH RRR 180915 +7 1294 SP7AH SP9PLK 73 180930 +7 1715 SP9PLK SP7AH 73 180945 -3 1716 SP7AH UA4FKT LO23 (x2) 181045 +1 1715 YU65AEC SP7AH -06 182315 +12 1715 LZ936BA SP7AH -05 (x4) 182500 +3 2329 SP7AH R2DX/3 R+07
UTC dB Audio Message 171915 -9 1550 OH5YZ SP7AH 73 172015 -8 1550 SP5GEO SP7AH -15 (x2) 172115 -8 1550 CQ SP7AH KO00 172915 -11 1550 F9IE SP7AH KO00 (x2) 173000 -2 947 SP7AH F9IE -01 173015 -10 1550 F9IE SP7AH R-05 173030 -4 947 SP7AH F9IE RR73 173045 -11 1550 F9IE SP7AH 73 180445 +8 2089 SP7AH ON6LEO +13 (x3) 181045 -1 2539 SP7AH DL3IKE +06 (x2)
UTC dB Audio Message 202445 -24 1954 SP7AH RW3DDZ KO86 202515 -23 1694 SP7AH TA2ED -18 202545 -10 1326 SP7AH PD7BDN R+11 202745 -20 1694 SP7AH TA2EE KM69 202815 -1 2981 SP7AH F4BYA JN19 202845 +1 741 SP7AH ON1BH RR73 202845 +2 2981 SP7AH F4BYA JN19 (x3) 164600 -14 1474 SP7AH PA7D JO23 (x2) 164700 -14 1473 SP7AH EB1ESK IN82 164830 -17 2209 SP7AH R6DVV KN95 (x3)
UTC dB Audio Message 100900 -5 2808 SP7AH <...> R-03 174400 -16 2311 SP7AH HB10GBT R+06 143200 -16 979 SP7AH II7MGXX R-06 080700 -7 645 SP7AH A92GE -14 (x2) 144700 -16 846 SP7AH TN8GD -03
UTC dB Audio Message 205715 -12 1585 RI1FJZ SP7AH R-15 205730 -14 881 SP7AH RR73; UR8IF <...> -12 205745 -13 1586 RI1FJZ SP7AH 73 205815 -14 1584 RA9YTI SP7AH KO00 205930 -14 2299 MW7GQB SP7AH KO00 (x5) 194915 -11 829 SQ100PKP SP7AH R+06 195000 -4 2223 SP7AH UA3ZUX KO90 202045 +0 829 SQ100PKP SP7AH +12 202100 +4 1163 SP7AH HF100PKP R+07 202130 +8 1163 SP7AH RR73; SP7ROM <...> -10 202230 -14 2053 R2EA/P SP7AH -18
UTC dB Audio Message 140430 -10 1418 SP7AH UA6AOP KN95 153730 -5 2742 SP7AH R6DOB/7 R-17 181600 -18 530 SP7AH RR73; JJ2KDZ <...> -14 181730 -12 470 SP7AH TT1GD RR73 161800 -12 484 SP7AH XU7O R+01 (x2) 161930 -5 629 SP7AH UN7LEW R-17 162100 +8 2143 SP7AH SP6AXW JO80 (x4) 162800 -12 2369 SP7AH RD0L R-11 (x2) 163015 -16 847 C91RU SP7AH RRR 165115 -18 1122 SP7AH A61OK 73
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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