F1SAA — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving F1SAA, decoded by SO8OO in southeastern Poland. 806 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 43 UTC dates in the available aggregate history. Observed between 2026-06-06 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 806 FT8 messages attributed to F1SAA as the transmitting token by decoded message structure across 43 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (43%), followed by 40 m (27%) and 10 m (15%). Most decodes (57%) fell within the six-hour window 18:00-00:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8.7 dB.
Overview
Bands
Last attributed message: 2026-09-20 14:46 UTC
Observed FT8 message patterns
- Attributed sample
- 806 messages
- Active dates
- 43 UTC dates
- Estimated median S/N
- -8.7 dB
- Estimated 10th-90th percentile
- -18 to +2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 136, moderate (-15 to -9 dB) 270, strong (≥ -8 dB) 400.
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 F1SAA 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 F1SAA
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
- JN25 · 422 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,346 km (approx.)
- Last such locator decoded
- 2026-09-20 14:45 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 | F1SAA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-20 14:45 | 40m | -7 / - | HB9ELE | +2 / +2 | 5 | ✓ Full exchange observed |
| 09-19 22:18 | 40m | +1 / - | SQ6FHT | - / -16 | 4 | ✓ Closing fragment |
| 09-19 21:55 | 80m | -12 / -19 | OZ1A | +1 / -15 | 3 | Partial capture |
| 09-19 21:49 | 80m | -13 / -8 | IQ4JO | +13 / 0 | 5 | ✓ Full exchange observed |
| 09-19 21:44 | 80m | -16 / -7 | SP100PKP | +27 / - | 2 | Partial capture |
| 09-19 21:38 | 80m | -14 / -23 | ON6WDL | +20 / +3 | 5 | ✓ Full exchange observed |
| 09-19 21:36 | 80m | -22 / - | 9A60CBM | - / - | 2 | Partial capture |
| 09-11 22:05 | 40m | +2 / - | SN31ROT | - / - | 3 | Partial capture |
| 09-11 21:54 | 80m | -14 / -8 | DO9MH | -20 / -12 | 7 | ✓ Full exchange observed |
| 09-11 21:52 | 80m | -7 / - | SP100PKP | - / - | 2 | Partial capture |
| 09-11 21:49 | 80m | -8 / -8 | II0CDS | -22 / -6 | 5 | ✓ Full exchange observed |
| 09-10 22:41 | 60m | -12 / - | TF8KW | - / -10 | 4 | ✓ Closing fragment |
| 09-10 21:59 | 40m | -1 / - | UA2FFD | - / - | 2 | Partial capture |
| 09-10 21:50 | 40m | -5 / - | DC9GT | - / -7 | 3 | ✓ Closing fragment |
| 09-10 21:46 | 40m | 0 / - | 9J2FI | - / - | 2 | Partial capture |
| 09-10 21:44 | 40m | -10 / - | EA8CZ | - / -12 | 2 | Partial capture |
| 09-10 21:41 | 40m | -9 / - | SO100PKP | - / -10 | 2 | Partial capture |
| 09-10 21:31 | 60m | -23 / - | SN31ROT | - / - | 2 | Partial capture |
| 09-08 22:19 | 60m | -19 / -11 | EH1PDA | -16 / -2 | 3 | ✓ Full exchange observed |
| 09-08 22:14 | 60m | -22 / -15 | VE1YX | -15 / - | 4 | ✓ Closing observed |
| 09-08 22:12 | 60m | -19 / - | EA8DGI | - / - | 3 | Partial capture |
| 09-06 21:58 | 40m | -2 / 0 | EG26PDA | -24 / -4 | 3 | Partial capture |
| 09-06 21:56 | 40m | 0 / +2 | R1943OD | +10 / -4 | 3 | Partial capture |
| 09-06 21:42 | 60m | -24 / -8 | SN40KZE | -14 / - | 2 | Partial capture |
| 09-05 22:13 | 60m | - / -12 | G8OO | +2 / - | 3 | ✓ Closing fragment |
| 09-05 22:05 | 60m | - / -9 | LA4O | -6 / - | 2 | ✓ Closing fragment |
| 09-05 22:02 | 60m | - / -12 | OH3GBW | 0 / - | 3 | ✓ Closing fragment |
| 09-05 21:57 | 60m | - / +2 | PH82LIB | -12 / - | 2 | Partial capture |
| 09-05 16:38 | 40m | -8 / - | 3B8FA | - / - | 2 | Partial capture |
| 09-05 16:35 | 40m | 0 / - | AM42SDC | - / -3 | 2 | Partial capture |
| 09-05 16:33 | 40m | -4 / +2 | OZ7KJ/P | 0 / -11 | 4 | Partial capture |
| 09-05 16:27 | 40m | -6 / - | EV6Z | - / - | 2 | Partial capture |
| 09-05 16:26 | 40m | -2 / - | MW0USK | -4 / -2 | 4 | ✓ Closing observed |
| 08-30 22:48 | 20m | -11 / - | 5N0YEN | - / - | 3 | Partial capture |
| 08-30 22:30 | 20m | -16 / - | EB3JT | -10 / -13 | 3 | ✓ Closing observed |
| 08-30 22:22 | 20m | -7 / - | VE5SD | - / -21 | 3 | ✓ Closing fragment |
| 08-30 22:17 | 20m | -8 / - | JA4IZL | - / -17 | 2 | Partial capture |
| 08-30 22:13 | 20m | 0 / - | JR1NHD | - / -5 | 3 | ✓ Closing fragment |
| 08-29 21:59 | 60m | -19 / -20 | ER1CW | -10 / -15 | 4 | ✓ Full exchange observed |
| 08-29 21:52 | 60m | -17 / 0 | PA5150EVH | -11 / -7 | 2 | Partial capture |
| 08-22 22:40 | 20m | -11 / - | VK8NSB | -24 / -11 | 4 | ✓ Closing observed |
| 08-22 22:32 | 20m | -4 / - | TJ1GD | - / -8 | 3 | ✓ Closing fragment |
| 08-15 22:02 | 40m | -8 / - | UA3IAP | - / - | 4 | Partial capture |
| 08-15 21:59 | 40m | - / -13 | UT6HN | -4 / - | 2 | Partial capture |
| 08-15 21:56 | 40m | -8 / - | TF4M | - / -4 | 2 | Partial capture |
| 08-15 21:54 | 40m | -13 / -5 | S55OO | -14 / - | 2 | ✓ Closing observed |
| 08-15 21:52 | 40m | -11 / - | RW3C/P | - / - | 2 | Partial capture |
| 08-15 21:40 | 60m | - / -4 | SE7LH | -7 / - | 2 | ✓ Closing fragment |
| 08-15 21:37 | 60m | - / -4 | F5MYK | -5 / - | 3 | ✓ Closing fragment |
| 08-15 21:37 | 60m | - / -8 | LY8O | -3 / - | 5 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 215945 -2 1803 UA2FFD F1SAA JN25 220545 +1 2339 SN31ROT F1SAA JN25 (x3) 220900 +7 393 EA8BBJ F1SAA JN25 221800 +3 1055 SQ6FHT F1SAA -16 (x4) 143930 +2 2892 SM7VGQ F1SAA JN25 144500 -9 693 HB9ELE F1SAA JN25 144515 +4 693 F1SAA HB9ELE +19 144530 -7 693 HB9ELE F1SAA R+02 144545 +1 693 F1SAA HB9ELE RR73 144600 -5 693 HB9ELE F1SAA 73
UTC dB Audio Message 213830 -15 2779 ON6WDL F1SAA R+03 213845 +21 2779 F1SAA ON6WDL RR73 213900 -8 2779 ON6WDL F1SAA 73 214345 -10 1875 9A60CBM F1SAA JN25 214445 -16 1031 SP100PKP F1SAA JN25 214530 +27 1031 F1SAA SP100PKP -07 214930 -9 2590 IQ4JO F1SAA JN25 214945 +13 2590 F1SAA IQ4JO -08 215000 -15 2590 IQ4JO F1SAA R+00 215015 +13 2590 F1SAA IQ4JO RR73 215030 -15 2590 IQ4JO F1SAA 73 215330 -13 832 DR2A F1SAA R-11 215530 -12 2535 OZ1A F1SAA JN25 215545 +1 2535 F1SAA OZ1A -19 215600 -12 2535 OZ1A F1SAA R-15
UTC dB Audio Message 221545 -10 1566 BA4OO F1SAA -14 221715 -7 1347 JA4IZL F1SAA -17 (x2) 222200 -6 356 VE5SD F1SAA JN25 (x3) 223000 -21 2259 KI5YNZ F1SAA 73 223015 -10 2260 F1SAA EB3JT JN01 223100 -21 2259 EB3JT F1SAA -13 (x2) 224845 -11 1250 5N0YEN F1SAA JN25 (x3) 144045 -21 1762 OZ1AFR F1SAA -16 154900 -18 1022 BI4JJO F1SAA -06
UTC dB Audio Message 221500 -15 1416 F1SAA VE1YX FN74 (x2) 221545 -22 1416 VE1YX F1SAA RR73 221715 -11 612 OE8DDX F1SAA JN25 221900 -16 2045 F1SAA EH1PDA -11 221915 -19 2045 EH1PDA F1SAA R-02 221930 -16 2045 F1SAA EH1PDA RR73 212845 -19 2115 AM42SDC F1SAA R-04 213145 -22 1605 SN31ROT F1SAA JN25 (x2) 224145 -8 910 TF8KW F1SAA JN25 (x4) 214330 -12 1621 F1SAA II8IHBC -13
UTC dB Audio Message 154315 -24 1638 M8GTD F1SAA JN25 (x2) 154630 -12 2601 M3TLJ F1SAA R-04 142645 -11 857 UX7QV F1SAA JN25 142730 -15 1644 SP3DOF F1SAA JN25 (x4) 152900 -20 1682 F1SAA SV5BYP KM46 (x7)
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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