SP5IDR — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SP5IDR, decoded by SO8OO in southeastern Poland. 1,017 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 33 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-09-03.
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 1,017 FT8 messages attributed to SP5IDR as the transmitting token by decoded message structure across 33 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (44%), followed by 80 m (36%) and 160 m (19%). Most decodes (73%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (64%); the estimated median was -4.2 dB.
Overview
Bands
Last attributed message: 2026-09-03 17:54 UTC
Observed FT8 message patterns
- Attributed sample
- 1,017 messages
- Active dates
- 33 UTC dates
- Estimated median S/N
- -4.2 dB
- Estimated 10th-90th percentile
- -17 to +9.9 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 151, moderate (-15 to -9 dB) 216, strong (≥ -8 dB) 650.
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 SP5IDR 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 SP5IDR
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
- KO01 · 402 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 182 km (approx.)
- Last such locator decoded
- 2026-09-03 17:54 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 | SP5IDR S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-03 17:54 | 160m | -10 / - | YO4NT | - / - | 2 | Partial capture |
| 09-03 17:50 | 160m | -12 / - | 9A3K | - / - | 2 | Partial capture |
| 09-03 17:46 | 160m | -4 / -19 | RZ6LY | +11 / -4 | 5 | ✓ Full exchange observed |
| 09-03 17:46 | 160m | -6 / -14 | SP3IOE | -11 / -16 | 4 | ✓ Full exchange observed |
| 09-03 17:41 | 80m | +2 / +2 | OZ7CL | -10 / - | 6 | Partial capture |
| 09-03 17:39 | 80m | +4 / - | LY5W | - / - | 2 | Partial capture |
| 09-03 17:09 | 80m | +15 / -6 | OK1YQ | -8 / -17 | 6 | Partial capture |
| 09-03 17:07 | 80m | +16 / +3 | LY8O | -12 / -9 | 7 | ✓ Full exchange observed |
| 09-03 17:04 | 80m | +15 / -6 | RA6ZS | +2 / -20 | 6 | ✓ Full exchange observed |
| 09-03 17:02 | 80m | +12 / - | DL8DWL | - / - | 2 | Partial capture |
| 09-03 16:59 | 80m | +10 / -7 | YO4NT | +4 / -6 | 6 | ✓ Full exchange observed |
| 08-30 19:24 | 160m | 0 / +4 | SP5UFK | -3 / - | 6 | ✓ Full exchange observed |
| 08-30 19:21 | 160m | +1 / -18 | EW1I | +2 / +3 | 7 | ✓ Full exchange observed |
| 08-30 19:15 | 160m | -3 / - | SP4LVG | -5 / +3 | 7 | ✓ Full exchange observed |
| 08-30 19:10 | 160m | -5 / +5 | SP3ATB | -9 / -10 | 7 | ✓ Full exchange observed |
| 08-30 19:04 | 160m | -3 / -7 | OH7GGX | -7 / -13 | 7 | ✓ Full exchange observed |
| 08-30 19:03 | 160m | 0 / -12 | SP6TL | -6 / -5 | 4 | ✓ Full exchange observed |
| 08-30 18:58 | 160m | -5 / +7 | OZ1ADL | -5 / -3 | 7 | ✓ Full exchange observed |
| 08-30 18:55 | 160m | -13 / -18 | UD8S | -24 / - | 3 | Partial capture |
| 08-30 18:54 | 160m | -3 / -11 | PA3FR | -14 / -18 | 8 | ✓ Full exchange observed |
| 08-30 18:49 | 80m | +6 / - | SQ7HJX | - / - | 3 | Partial capture |
| 08-30 18:46 | 80m | +4 / -1 | 9A9N | +1 / -15 | 7 | ✓ Full exchange observed |
| 08-30 18:44 | 80m | +8 / - | SQ8V | - / - | 2 | Partial capture |
| 08-30 18:27 | 80m | +13 / - | SP8BJU | - / - | 5 | Partial capture |
| 08-30 18:24 | 80m | +8 / -10 | SP7OK | +3 / -16 | 7 | ✓ Full exchange observed |
| 08-30 18:23 | 80m | +12 / - | UY5BF | - / - | 2 | Partial capture |
| 08-30 18:22 | 80m | - / - | DL3MIB | +4 / - | 2 | Partial capture |
| 08-30 18:21 | 80m | +21 / -4 | EW8CW | -1 / -13 | 5 | ✓ Full exchange observed |
| 08-28 05:21 | 40m | -6 / - | CT7AUT | - / -11 | 3 | ✓ Closing fragment |
| 08-28 05:18 | 40m | -2 / -22 | KB2FCV | -11 / -12 | 3 | ✓ Full exchange observed |
| 08-28 05:17 | 40m | -12 / - | ON7HM | - / -8 | 2 | ✓ Closing fragment |
| 08-28 04:48 | 80m | - / - | DO1BOC | -8 / - | 17 | Partial capture |
| 08-28 04:39 | 80m | +3 / -3 | SQ9EJ | +5 / -15 | 7 | ✓ Full exchange observed |
| 08-28 04:36 | 80m | +8 / -5 | HA3TBL | +2 / -14 | 5 | ✓ Full exchange observed |
| 08-28 04:31 | 80m | +10 / +2 | DA6TT | +3 / -3 | 4 | ✓ Full exchange observed |
| 08-28 04:28 | 80m | - / - | DO5HOK | -9 / - | 2 | Partial capture |
| 08-28 04:24 | 80m | +10 / - | SP5KG | +12 / - | 5 | ✓ Full exchange observed |
| 08-28 04:22 | 80m | +8 / -10 | MM0KQC | -9 / -5 | 5 | ✓ Full exchange observed |
| 08-28 04:19 | 80m | +3 / -12 | 9A3AUH | +2 / -9 | 12 | ✓ Full exchange observed |
| 08-28 04:16 | 80m | +4 / -6 | DO5HOK | -4 / -11 | 7 | ✓ Full exchange observed |
| 08-28 04:15 | 80m | -2 / -3 | SP6FME | +11 / - | 7 | ✓ Full exchange observed |
| 08-28 04:14 | 80m | -1 / +1 | HA3HX | -6 / +7 | 5 | ✓ Full exchange observed |
| 08-28 04:10 | 80m | -1 / -16 | VE3DZ | 0 / -18 | 10 | Partial capture |
| 08-28 04:08 | 80m | +4 / -9 | IN3IZQ | -16 / -18 | 4 | ✓ Full exchange observed |
| 08-28 04:06 | 80m | +6 / -5 | YO4KMU | -4 / - | 4 | ✓ Closing observed |
| 08-28 04:03 | 80m | +7 / -14 | OR7K | -5 / - | 4 | ✓ Closing observed |
| 08-28 03:58 | 80m | +1 / -4 | MI7XHT | -5 / -11 | 5 | ✓ Full exchange observed |
| 08-28 03:56 | 80m | -2 / -13 | EA3AKY | -16 / - | 4 | ✓ Closing observed |
| 08-27 16:36 | 160m | -18 / - | SQ9PBV | -14 / - | 6 | Partial capture |
| 08-27 16:35 | 160m | -22 / - | SP3KRE | - / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 174645 -12 406 SP5IDR RX6CC KN96 174645 -11 2110 SP5IDR SP3IOE R-14 174645 +17 798 SP5IDR RZ6LY -19 174700 -6 1384 SP3IOE SP5IDR RR73 174715 -11 2110 SP5IDR SP3IOE 73 174800 -6 1384 CQ SP5IDR KO01 (x2) 174845 +9 2207 SP5IDR RZ6LY -15 174900 -5 1384 RZ6LY SP5IDR R-04 174915 +6 2207 SP5IDR RZ6LY RR73 174930 -4 1384 RZ6LY SP5IDR 73 175045 -13 1384 9A3K SP5IDR KO01 (x2) 175400 -8 1384 YO4NT SP5IDR KO01 (x2)
UTC dB Audio Message 171030 +12 1391 OK1YQ SP5IDR R-17 (x3) 171230 +7 1391 CQ SP5IDR KO01 171345 -20 713 SP5IDR DO2KMB JO42 173930 +4 1390 LY5W SP5IDR KO01 (x2) 174030 +2 1390 CQ SP5IDR KO01 174130 +5 1390 OZ7CL SP5IDR KO01 (x2) 174345 -12 1048 SP5IDR OZ7CL +02 (x5)
UTC dB Audio Message 161145 -13 1671 SP5IDR IK2YYO JN55 161215 -5 1535 SP5IDR IV3VFP JN66 161215 -5 1671 SP5IDR IK2YYO JN55 161245 -4 1535 SP5IDR IV3VFP JN66 161245 -11 1671 SP5IDR IK2YYO JN55 161315 -4 1535 SP5IDR IV3VFP JN66 (x2) 051730 -12 1355 ON7HM SP5IDR -08 051815 -11 2747 SP5IDR KB2FCV -22 051830 +2 1355 KB2FCV SP5IDR R-12 (x2) 051930 -11 1355 ON7HM SP5IDR RR73 052115 -6 1442 CT7AUT SP5IDR KO01 (x3)
UTC dB Audio Message 102030 -15 1323 SP5IDR DO5PY JN49 104100 -24 1287 SP5IDR DL1UDO JO31 104230 -9 1848 SP5IDR DJ3HW JO30 104230 -21 1494 SP5IDR DO2MS JO40 104330 -12 1849 SP5IDR DJ3HW JO30 104400 -14 2459 SP5IDR ON5RZ R-04 (x2) 104630 -13 1858 SP5IDR IK4IDY RR73 143415 -12 1433 SP5IDR RC6OU KN98 (x2) 144430 -5 2995 SP5IDR EA8ACW -08 (x5)
UTC dB Audio Message 122645 -10 1746 SP5IDR EC3A R-08 (x2) 123215 -22 1609 SP5IDR F1PPH JN25 123215 -6 2671 SP5IDR F1PBZ -04 (x2) 200815 -16 2305 SP5IDR UT7UJ -20 (x2) 164345 -12 802 SP5IDR UR5LY -11 164345 +0 2068 SP5IDR RZ4FWA LO23 (x2) 164445 -10 757 SP5IDR UR5LY RR73 164445 +0 2068 SP5IDR RZ4FWA LO23 164945 -9 1523 SP5IDR I3QDK JN65 (x2) 165515 -22 1659 SP5IDR BG8HNC R-18
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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