F1DSZ — 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 F1DSZ, decoded by SO8OO in southeastern Poland. 1,209 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 89 UTC dates in the available aggregate history. Observed between 2026-06-07 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 1,209 FT8 messages attributed to F1DSZ as the transmitting token by decoded message structure across 89 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (69%), followed by 20 m (25%) and 10 m (5%). Several six-hour UTC windows tied for the largest share (54%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (84%); the estimated median was -3 dB.
Overview
Bands
Last attributed message: 2026-10-22 18:13 UTC
Observed FT8 message patterns
- Attributed sample
- 1,209 messages
- Active dates
- 89 UTC dates
- Estimated median S/N
- -3 dB
- Estimated 10th-90th percentile
- -10 to +4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 11, moderate (-15 to -9 dB) 182, strong (≥ -8 dB) 1,016.
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 F1DSZ 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 F1DSZ
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
- JN06 · 546 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,581 km (approx.)
- Last such locator decoded
- 2026-10-22 18:13 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 | F1DSZ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-22 18:10 | 40m | 0 / - | EA4D | -5 / -4 | 4 | ✓ Closing observed |
| 10-22 18:07 | 40m | -1 / - | LY2BSW | - / -15 | 3 | ✓ Closing fragment |
| 10-22 18:03 | 40m | -2 / - | LB7UK | - / - | 2 | ✓ Closing fragment |
| 10-22 17:59 | 40m | -3 / - | G0OYR | -6 / -7 | 9 | Partial capture |
| 10-22 17:59 | 40m | +2 / - | LB7UK | - / -12 | 2 | Partial capture |
| 10-22 17:58 | 40m | 0 / - | SP5MIG | - / -6 | 2 | ✓ Closing fragment |
| 10-22 17:57 | 40m | -4 / - | M0LJN | - / -14 | 2 | ✓ Closing fragment |
| 10-22 17:55 | 40m | -1 / - | HA4UC | - / -15 | 2 | ✓ Closing fragment |
| 10-22 17:54 | 40m | -4 / - | RW6HP | - / -3 | 2 | ✓ Closing fragment |
| 10-22 15:55 | 40m | - / -3 | DD0IPA | -9 / - | 2 | ✓ Closing fragment |
| 10-22 15:53 | 40m | - / -12 | E77D | +1 / - | 2 | ✓ Closing fragment |
| 10-22 15:49 | 40m | -4 / - | PE1PIX | -10 / - | 2 | ✓ Closing observed |
| 10-22 15:47 | 40m | - / -9 | DH0BRO | +7 / - | 2 | ✓ Closing fragment |
| 10-22 06:19 | 40m | -5 / - | SK2TT | - / -9 | 4 | ✓ Closing fragment |
| 10-20 15:30 | 10m | - / +1 | CN8NS | -16 / - | 2 | Partial capture |
| 10-19 07:11 | 40m | -5 / +8 | IU3SRT | -3 / +3 | 5 | ✓ Full exchange observed |
| 10-19 07:08 | 40m | -7 / -4 | F1PBZ | -1 / 0 | 4 | ✓ Full exchange observed |
| 10-19 06:58 | 40m | -6 / - | OR82CLM | - / -3 | 2 | Partial capture |
| 10-19 06:14 | 40m | -3 / - | EA7LGI | - / -5 | 3 | ✓ Closing fragment |
| 10-19 06:08 | 40m | -2 / - | OH7MA | -8 / +1 | 6 | ✓ Full exchange observed |
| 10-19 06:06 | 40m | -1 / - | DB3EH | - / - | 3 | Partial capture |
| 10-19 05:47 | 40m | 0 / -11 | R2SDZ | 0 / -4 | 5 | ✓ Full exchange observed |
| 10-18 08:19 | 40m | -10 / - | EA3JAQ | - / -5 | 2 | ✓ Closing fragment |
| 10-18 07:43 | 40m | -8 / - | OE8JOTA | - / -6 | 2 | Partial capture |
| 10-18 07:36 | 40m | -5 / - | F4HSB | -21 / - | 2 | ✓ Closing observed |
| 10-18 07:33 | 40m | -6 / - | VO1ACZ | - / -18 | 3 | ✓ Closing fragment |
| 10-18 07:32 | 40m | -6 / - | HI3LER | - / -13 | 2 | ✓ Closing fragment |
| 10-18 07:30 | 40m | -5 / - | W2GHD | - / -9 | 2 | ✓ Closing fragment |
| 10-17 16:13 | 40m | - / -2 | EH5CMP | -14 / - | 2 | ✓ Closing fragment |
| 10-16 16:54 | 40m | -6 / - | R3DID | - / - | 2 | Partial capture |
| 10-16 16:51 | 40m | -6 / -12 | IQ3TR | -2 / -1 | 3 | ✓ Full exchange observed |
| 10-16 16:51 | 40m | -4 / - | CT2JWM | - / -8 | 2 | ✓ Closing fragment |
| 10-16 16:48 | 40m | -7 / - | PA6VLG | - / - | 2 | Partial capture |
| 10-16 16:47 | 40m | -6 / - | S58M | - / - | 2 | Partial capture |
| 10-16 16:45 | 40m | -7 / - | EA5KT | - / -10 | 3 | ✓ Closing fragment |
| 10-16 16:41 | 40m | -7 / 0 | OE2CAL | +16 / +1 | 5 | ✓ Full exchange observed |
| 10-15 18:53 | 40m | +4 / - | M7ECL | - / -12 | 2 | ✓ Closing fragment |
| 10-15 18:52 | 40m | +4 / -8 | PD1DP | +4 / -5 | 4 | ✓ Full exchange observed |
| 10-14 18:33 | 40m | - / - | ON5RJ | -8 / - | 2 | Partial capture |
| 10-14 18:33 | 40m | +2 / - | G4ANS | -2 / -1 | 3 | ✓ Closing observed |
| 10-14 18:29 | 40m | +4 / 0 | IU4SQE | -15 / - | 3 | Partial capture |
| 10-14 18:28 | 40m | +5 / -8 | 9A3MA | -10 / -6 | 6 | ✓ Full exchange observed |
| 10-14 18:05 | 40m | +5 / - | IU1WMA | - / -9 | 2 | Partial capture |
| 10-14 18:00 | 40m | +3 / - | SG3A | - / -6 | 3 | ✓ Closing fragment |
| 10-14 17:57 | 40m | +2 / -9 | UN0GY | -10 / - | 4 | ✓ Closing observed |
| 10-14 17:55 | 40m | +3 / - | IW2HWN | - / -18 | 4 | ✓ Closing fragment |
| 10-14 17:53 | 40m | +3 / - | OZ1AKN | - / -7 | 3 | ✓ Closing fragment |
| 10-12 20:44 | 40m | -2 / - | D2ACE | - / - | 2 | Partial capture |
| 10-12 20:42 | 40m | -3 / - | BI4IWL | - / -20 | 3 | ✓ Closing fragment |
| 10-12 20:40 | 40m | +7 / - | BG7BVI | - / -8 | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 180530 -3 1114 CQ F1DSZ JN06 a1 (x3) 180700 +3 1115 LY2BSW F1DSZ -15 (x3) 180830 +0 1114 TA2VUZ F1DSZ JN06 180945 +1 1115 CQ F1DSZ JN06 181000 -4 1115 F1DSZ EA4D IN80 181015 +1 1059 EA4D F1DSZ -04 (x2) 181100 -6 1115 F1DSZ EA4D 73 181115 -5 1059 PE1BOL F1DSZ -14 181245 -9 1106 CQ F1DSZ JN06 (x2)
UTC dB Audio Message 073230 -5 541 HG1DRC F1DSZ JN06 153015 -18 2266 F1DSZ CN8NS +01 (x2)
UTC dB Audio Message 210415 -11 1641 F1DSZ YO7LMU/QRP -10
UTC dB Audio Message 183600 -6 567 R4NAN F1DSZ JN06 183730 -4 567 G4BHT F1DSZ JN06 (x3) 183900 -2 567 EA4EER F1DSZ JN06 (x3) 184530 -17 2464 F1DSZ EA3JIJ -10 (x2) 184700 +12 2668 F1DSZ 9A3EYA -12 (x2) 185100 +11 568 HB9DBM F1DSZ JN06 (x3) 185215 -6 1841 F1DSZ HB9DBM RR73
UTC dB Audio Message 143015 +6 1900 F1DSZ RA3TT -10 143030 +6 533 RA3TT F1DSZ R-04 143045 +1 1900 F1DSZ RA3TT RR73 143345 +10 533 SP5MIG F1DSZ JN06 (x3) 143630 -2 533 OZ/DG5LAC F1DSZ JN06 143700 +2 533 G7TWX F1DSZ JN06 150800 +5 534 4X5ZX F1DSZ R-09 150815 -14 1631 F1DSZ 4X5ZX RR73 151145 +4 534 9A6NCC F1DSZ JN06 (x3) 152500 +4 533 RV9CD F1DSZ R-10 (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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