IU3VSZ — 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 IU3VSZ, decoded by SO8OO in southeastern Poland. 389 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 50 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-11-04.
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 389 FT8 messages attributed to IU3VSZ as the transmitting token by decoded message structure across 50 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (47%), followed by 80 m (30%) and 20 m (13%). Most decodes (87%) 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 -5 dB.
Overview
Bands
Last attributed message: 2026-11-04 14:55 UTC
Observed FT8 message patterns
- Attributed sample
- 389 messages
- Active dates
- 50 UTC dates
- Estimated median S/N
- -5 dB
- Estimated 10th-90th percentile
- -18 to +5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 69, moderate (-15 to -9 dB) 90, strong (≥ -8 dB) 230.
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 IU3VSZ 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 IU3VSZ
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
- JN55 · 241 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 945 km (approx.)
- Last such locator decoded
- 2026-11-04 14:55 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 | IU3VSZ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-04 14:54 | 40m | -6 / - | HS5NMF | - / - | 3 | Partial capture |
| 11-04 14:20 | 40m | -4 / - | DH2NJS | -14 / +1 | 7 | ✓ Full exchange observed |
| 11-04 14:18 | 40m | -6 / - | OE3RWR | +1 / +5 | 6 | ✓ Full exchange observed |
| 11-03 20:05 | 80m | +4 / - | F6BHK | - / -11 | 2 | Partial capture |
| 11-03 20:04 | 80m | -8 / - | SV1EKI | - / - | 2 | ✓ Closing fragment |
| 11-03 19:57 | 80m | -5 / - | OD5ZZ | - / - | 3 | Partial capture |
| 11-03 19:56 | 80m | -4 / - | PE2JMR | - / - | 3 | Partial capture |
| 11-02 18:43 | 40m | +2 / - | D2UY | - / -9 | 6 | Partial capture |
| 11-02 18:41 | 80m | -3 / - | SP9TBT/5 | - / - | 2 | Partial capture |
| 11-02 18:38 | 80m | -6 / - | EW6DM | - / - | 2 | Partial capture |
| 11-02 18:35 | 80m | 0 / - | UA9XL/P | - / - | 2 | Partial capture |
| 11-02 18:30 | 80m | -2 / - | UA9XL/P | - / - | 4 | Partial capture |
| 11-02 18:28 | 80m | -3 / -15 | LY3BFH | +9 / - | 4 | ✓ Closing observed |
| 11-02 18:24 | 80m | -6 / - | YT2ZE | -9 / -10 | 4 | ✓ Closing observed |
| 11-02 18:19 | 40m | +7 / - | OH3OJ | - / -17 | 2 | ✓ Closing fragment |
| 11-02 18:17 | 40m | +5 / - | UW8SM | - / - | 2 | ✓ Closing fragment |
| 11-02 18:16 | 40m | +8 / +7 | PA3BMB | -2 / -19 | 6 | ✓ Full exchange observed |
| 11-02 18:14 | 40m | +7 / - | UR5XEJ | - / -8 | 4 | ✓ Closing fragment |
| 11-02 17:55 | 40m | -13 / -3 | SV1DKR | -7 / - | 3 | Partial capture |
| 11-02 17:50 | 40m | -7 / - | A92AE | - / - | 2 | Partial capture |
| 11-01 17:03 | 40m | -8 / - | DB6FA | - / -7 | 3 | ✓ Closing fragment |
| 11-01 17:02 | 40m | - / - | G4DBW | +1 / - | 2 | Partial capture |
| 11-01 17:01 | 40m | -4 / - | OZ5AGJ | - / -14 | 3 | ✓ Closing fragment |
| 11-01 16:58 | 40m | -3 / - | UA9SHH | - / -7 | 4 | ✓ Closing fragment |
| 10-30 18:03 | 40m | - / - | DL1BBO | -4 / - | 3 | Partial capture |
| 10-30 18:00 | 40m | -3 / -8 | OH3SW | +4 / +1 | 5 | ✓ Full exchange observed |
| 10-22 18:20 | 80m | -6 / - | RU9CK | - / - | 2 | Partial capture |
| 10-21 19:27 | 80m | -2 / -3 | YO3FRI | +2 / -4 | 6 | ✓ Full exchange observed |
| 10-17 18:24 | 40m | +2 / - | HF40BLP | - / -13 | 3 | Partial capture |
| 10-14 18:11 | 80m | -4 / - | JF8QNF | - / - | 5 | Partial capture |
| 10-12 18:02 | 40m | +4 / - | Z62NS | - / - | 4 | Partial capture |
| 10-12 17:59 | 40m | +1 / - | DL4DP | - / -13 | 2 | Partial capture |
| 10-12 17:57 | 40m | +7 / - | SP9IML | - / -12 | 4 | ✓ Closing fragment |
| 10-12 17:55 | 40m | -3 / - | 4O4DB | -7 / -1 | 3 | ✓ Closing observed |
| 10-12 17:54 | 40m | +3 / - | Z62NS | - / - | 2 | Partial capture |
| 10-07 18:55 | 40m | 0 / - | IT9ACJ/ISUB | - / -9 | 12 | Partial capture |
| 09-30 19:11 | 80m | -3 / -5 | HB3YOY | -10 / - | 3 | ✓ Closing observed |
| 09-30 19:09 | 80m | -2 / -1 | F1PBZ | -10 / - | 3 | ✓ Closing observed |
| 09-29 18:11 | 40m | 0 / - | VJ6X | - / - | 2 | Partial capture |
| 09-29 18:10 | 40m | +2 / - | JA3FYC | - / - | 2 | Partial capture |
| 09-29 18:08 | 40m | +10 / - | VJ6X | - / - | 2 | Partial capture |
| 09-29 18:06 | 40m | +4 / - | UB9WPD | - / -18 | 4 | ✓ Closing fragment |
| 09-28 19:50 | 80m | -1 / -8 | OH3FM | +2 / -15 | 6 | ✓ Full exchange observed |
| 09-28 18:38 | 80m | - / -12 | RA2FCF | -4 / - | 2 | ✓ Closing fragment |
| 09-28 18:37 | 80m | - / - | UA4FKT | -1 / - | 4 | Partial capture |
| 09-28 18:36 | 80m | -17 / - | HB3YPJ | - / -10 | 3 | ✓ Closing fragment |
| 09-28 18:33 | 80m | -8 / - | UR5VLC | -6 / - | 3 | ✓ Closing observed |
| 09-28 18:25 | 40m | +6 / - | MI5JYK | - / - | 5 | Partial capture |
| 09-28 18:18 | 40m | +3 / - | M0KPW | - / -16 | 6 | ✓ Closing fragment |
| 09-26 19:49 | 80m | - / -10 | M6XZD | -4 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 141845 -4 1115 OE3RWR IU3VSZ +05 141900 -1 1595 IU3VSZ OE3RWR R+15 141915 -9 1115 OE3RWR IU3VSZ RRR 141930 +1 1595 IU3VSZ OE3RWR 73 141945 -6 1115 OE3RWR IU3VSZ 73 142000 -15 1115 IU3VSZ DH2NJS JO50 (x2) 142045 -5 1712 DH2NJS IU3VSZ +01 142100 -13 1115 IU3VSZ DH2NJS R+11 (x2) 142145 -2 1711 DH2NJS IU3VSZ RRR 142200 -16 1115 IU3VSZ DH2NJS 73 145400 -5 1931 HS5NMF IU3VSZ JN55 (x3)
UTC dB Audio Message 183900 -6 896 EW6DM IU3VSZ JN55 184115 -1 395 SP9TBT/5 IU3VSZ JN55 (x2) 195600 -4 927 PE2JMR IU3VSZ JN55 (x3) 195730 -5 928 OD5ZZ IU3VSZ JN55 (x3) 200200 -8 2108 PE2JMR IU3VSZ R-08 200300 -7 2108 CQ IU3VSZ JN55 200400 -8 2108 SV1EKI IU3VSZ RRR (x2) 200500 +5 2108 F6BHK IU3VSZ -11 (x2)
UTC dB Audio Message 151115 -11 2170 S54E IU3VSZ JN55 (x2) 151245 -19 2170 UX0KR IU3VSZ -12 (x3) 174200 -22 1415 LU9ET IU3VSZ JN55 (x3) 111730 -17 1485 LY2BBF IU3VSZ JN55 (x2)
UTC dB Audio Message 055945 -21 2135 V31DL IU3VSZ JN55 (x3) 060930 -15 725 HK3W IU3VSZ JN55 061400 -18 1384 VK2JJM IU3VSZ JN55 061500 -20 1384 HK3W IU3VSZ JN55 (x3) 062145 -12 625 LZ2VQ IU3VSZ R-08 062615 -17 930 <EY35D> IU3VSZ JN55 062715 -18 1703 OE/DL6CGU IU3VSZ JN55 062800 -21 1703 HK3W IU3VSZ JN55 (x2) 113545 -8 710 ZB2LGT IU3VSZ JN55 191215 -4 2226 WV2B IU3VSZ JN55
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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