IU5VLU — 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 IU5VLU, decoded by SO8OO in southeastern Poland. 624 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 56 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-11-05.
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 624 FT8 messages attributed to IU5VLU as the transmitting token by decoded message structure across 56 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (43%), followed by 40 m (21%) and 60 m (17%). Most decodes (72%) fell within the six-hour window 14:00-20:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.
Overview
Bands
Last attributed message: 2026-11-05 20:06 UTC
Observed FT8 message patterns
- Attributed sample
- 624 messages
- Active dates
- 56 UTC dates
- Estimated median S/N
- -10 dB
- Estimated 10th-90th percentile
- -19 to -1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 147, moderate (-15 to -9 dB) 225, strong (≥ -8 dB) 252.
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 IU5VLU 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 IU5VLU
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
- JN52 · 323 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,170 km (approx.)
- Last such locator decoded
- 2026-11-05 20:06 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 | IU5VLU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-05 20:03 | 40m | -2 / - | JL1OXH | - / - | 3 | Partial capture |
| 11-02 18:54 | 80m | -10 / -11 | DK7UY | -8 / +3 | 9 | ✓ Full exchange observed |
| 11-02 17:44 | 80m | -16 / - | LY3PW | - / - | 2 | Partial capture |
| 11-01 19:57 | 80m | -10 / - | SV9MBH | - / - | 4 | Partial capture |
| 11-01 19:52 | 80m | -9 / 0 | HG0NPJ | +6 / -5 | 4 | ✓ Full exchange observed |
| 11-01 19:49 | 80m | -7 / -7 | SP5OXJ | +6 / -2 | 4 | ✓ Full exchange observed |
| 11-01 19:46 | 80m | -10 / -15 | YO4NT | +1 / -3 | 5 | ✓ Full exchange observed |
| 11-01 19:40 | 80m | -7 / - | YO5QDI | - / - | 4 | Partial capture |
| 11-01 19:39 | 80m | -10 / - | DL9KM | - / -15 | 2 | ✓ Closing fragment |
| 11-01 19:38 | 80m | -5 / - | DL6EL | -1 / - | 2 | ✓ Closing observed |
| 11-01 19:37 | 80m | -3 / - | HB3YPJ | - / -15 | 3 | ✓ Closing fragment |
| 11-01 19:35 | 80m | -2 / - | DA6DNA | - / -16 | 2 | ✓ Closing fragment |
| 11-01 19:31 | 80m | -3 / - | 5B4AMX | - / -15 | 4 | ✓ Closing fragment |
| 11-01 19:29 | 80m | 0 / -1 | IQ4JO | -1 / +1 | 3 | ✓ Full exchange observed |
| 11-01 19:23 | 80m | -8 / - | D2UY | - / -14 | 4 | ✓ Closing fragment |
| 11-01 19:21 | 80m | - / -13 | YO4NT | +2 / - | 2 | Partial capture |
| 11-01 19:19 | 80m | -9 / -16 | DO1SHK | -10 / - | 5 | ✓ Closing observed |
| 11-01 19:14 | 80m | -8 / - | 9A2WA | - / -13 | 2 | ✓ Closing fragment |
| 11-01 19:09 | 80m | -7 / - | LZ2VQ | -10 / -7 | 4 | ✓ Closing observed |
| 11-01 19:07 | 80m | -5 / - | JA4FKX | -19 / - | 2 | ✓ Closing observed |
| 11-01 19:02 | 80m | -3 / -11 | YT2U | +4 / -13 | 5 | ✓ Full exchange observed |
| 11-01 19:00 | 80m | -7 / - | TA4SSK | - / -8 | 3 | ✓ Closing fragment |
| 11-01 17:56 | 80m | 0 / -3 | US7UK | -2 / -8 | 6 | ✓ Full exchange observed |
| 11-01 17:50 | 80m | -9 / -13 | E79D | +7 / - | 3 | ✓ Closing observed |
| 11-01 17:48 | 80m | -8 / +5 | Z62NS | -3 / - | 2 | Partial capture |
| 10-31 19:35 | 60m | -13 / - | 6W/IK2HKT | - / -7 | 17 | Partial capture |
| 10-31 19:32 | 60m | -16 / - | SP5DFK/QRP | - / - | 4 | Partial capture |
| 10-31 19:21 | 60m | -7 / - | SP5DFK/QRP | - / - | 6 | Partial capture |
| 10-31 19:17 | 60m | -7 / - | YL2NX | -8 / -9 | 3 | Partial capture |
| 10-31 19:16 | 60m | -10 / +5 | F6FHZ | -20 / -3 | 6 | ✓ Full exchange observed |
| 10-31 19:10 | 60m | -12 / 0 | SV9GPV | +2 / - | 7 | ✓ Closing observed |
| 10-25 06:42 | 40m | -14 / - | OK1PHM | -4 / - | 2 | ✓ Closing observed |
| 10-25 06:40 | 40m | - / -10 | OZ6G | -4 / - | 2 | ✓ Closing fragment |
| 10-25 06:35 | 40m | - / -16 | F1PBZ | -5 / - | 4 | ✓ Closing fragment |
| 10-11 16:39 | 60m | -20 / - | H49A | - / - | 2 | Partial capture |
| 10-07 17:50 | 40m | +2 / - | VU3OSA | - / - | 2 | Partial capture |
| 10-06 19:14 | 40m | 0 / - | VJ6X | - / -13 | 3 | ✓ Closing fragment |
| 10-06 19:10 | 40m | -2 / - | V51WH | - / -11 | 6 | ✓ Closing fragment |
| 10-02 06:24 | 40m | -10 / - | W5XO | - / -14 | 3 | ✓ Closing fragment |
| 09-28 18:22 | 40m | - / -18 | EA3AAY | -10 / - | 2 | ✓ Closing fragment |
| 09-28 18:09 | 60m | - / -3 | DK1XAM | -3 / - | 3 | Partial capture |
| 09-28 18:09 | 60m | -11 / - | S51XA | - / - | 2 | Partial capture |
| 09-28 18:06 | 60m | -10 / -7 | PA2PF | -12 / -7 | 5 | ✓ Full exchange observed |
| 09-28 18:05 | 60m | -8 / -7 | DD6ZV | -1 / -1 | 5 | ✓ Full exchange observed |
| 09-28 18:03 | 60m | -8 / -12 | 4X5EF | -16 / -7 | 5 | ✓ Full exchange observed |
| 09-27 06:09 | 60m | -18 / - | ZL2AGY | - / -21 | 3 | ✓ Closing fragment |
| 09-27 06:08 | 60m | -18 / - | N9UA | - / - | 2 | Partial capture |
| 09-26 18:44 | 60m | -8 / - | IW4DV | -4 / - | 3 | Partial capture |
| 09-26 18:42 | 60m | -9 / +2 | F6ICX | -3 / -2 | 5 | ✓ Full exchange observed |
| 09-26 18:39 | 60m | -11 / -11 | SQ3TR | +2 / -2 | 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 191545 +1 2788 VJ6X IU5VLU 73 175045 +0 2037 VU3OSA IU5VLU JN52 (x2) 063530 -7 2543 IU5VLU F1PBZ -16 (x4) 063745 -15 768 OA4ENG IU5VLU JN52 064030 -3 522 IU5VLU OZ6G R-10 (x2) 064230 -4 2488 IU5VLU OK1PHM RR73 064245 -14 843 OK1PHM IU5VLU 73 200330 +0 2974 JL1OXH IU5VLU JN52 (x3)
UTC dB Audio Message 195900 -18 1783 SV9MBH IU5VLU JN52 200030 -14 1836 IU5VLU YO5QDI -08 174330 -5 2120 OM2WQ IU5VLU JN52 174415 -21 2120 LY3PW IU5VLU JN52 (x2) 185445 -10 2120 IU5VLU DK7UY JO44 (x3) 185600 -9 2252 DK7UY IU5VLU +03 185615 -8 2120 IU5VLU DK7UY JO44 185630 -10 2252 DK7UY IU5VLU +00 185645 +1 2253 IU5VLU DK7UY R-11 185700 -12 2253 DK7UY IU5VLU RR73 185715 -8 2253 IU5VLU DK7UY 73 201145 +2 2552 RU4CK/P IU5VLU JN52
UTC dB Audio Message 193645 -19 1200 6W/IK2HKT IU5VLU JN52 (x15)
UTC dB Audio Message 160500 -20 1639 IU5VLU C5R +13
UTC dB Audio Message 153345 -11 1925 EA6AQG IU5VLU JN52 (x8) 074030 -6 695 YS1GMV IU5VLU JN52 (x2) 060715 -21 1722 OA1F IU5VLU JN52 (x5)
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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