IU7VOL — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IU7VOL, decoded by SO8OO in southeastern Poland. 1,509 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 67 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 1,509 FT8 messages attributed to IU7VOL as the transmitting token by decoded message structure across 67 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (48%), followed by 40 m (27%) and 20 m (19%). Most decodes (68%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.
Overview
Bands
Last attributed message: 2026-09-20 05:58 UTC
Observed FT8 message patterns
- Attributed sample
- 1,509 messages
- Active dates
- 67 UTC dates
- Estimated median S/N
- -7 dB
- Estimated 10th-90th percentile
- -16 to +4.1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 172, moderate (-15 to -9 dB) 485, strong (≥ -8 dB) 852.
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 IU7VOL 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 IU7VOL
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
- JN81 · 680 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,009 km (approx.)
- Last such locator decoded
- 2026-09-19 15:51 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 | IU7VOL S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-20 05:56 | 40m | -11 / -7 | PD0PMF | 0 / -4 | 8 | Partial capture |
| 09-19 15:50 | 40m | -10 / - | RA4ADF/P | - / - | 2 | Partial capture |
| 09-17 20:31 | 40m | - / - | F5SJC | -6 / - | 2 | ✓ Closing fragment |
| 09-17 20:28 | 40m | -6 / - | M0PFX | - / -13 | 6 | Partial capture |
| 09-17 20:26 | 40m | -8 / -6 | LA2GCA | -14 / -6 | 3 | Partial capture |
| 09-17 20:25 | 40m | -6 / -21 | PE0V | -7 / -7 | 3 | ✓ Full exchange observed |
| 09-17 20:11 | 80m | - / - | RA6OY | +2 / - | 4 | Partial capture |
| 09-17 14:31 | 40m | -13 / -6 | HA7JLR | -5 / -1 | 8 | ✓ Full exchange observed |
| 09-17 14:31 | 40m | -12 / +8 | E70SZ | -2 / +5 | 8 | ✓ Full exchange observed |
| 09-16 20:49 | 40m | -6 / -17 | DK4RH | -2 / - | 4 | ✓ Closing observed |
| 09-16 20:48 | 40m | -10 / - | JH1CTV | - / -25 | 2 | ✓ Closing fragment |
| 09-16 20:47 | 40m | -12 / - | RW3DDZ | - / -17 | 2 | ✓ Closing fragment |
| 09-16 20:46 | 40m | +2 / - | DK9MS | - / -3 | 2 | ✓ Closing fragment |
| 09-16 20:30 | 40m | +6 / - | PD0LH | - / -15 | 2 | ✓ Closing fragment |
| 09-16 20:19 | 80m | - / -16 | SV1DKR | -1 / - | 3 | ✓ Closing fragment |
| 09-16 20:00 | 40m | -4 / - | JF1UVJ | - / -16 | 2 | ✓ Closing fragment |
| 09-16 20:00 | 40m | - / - | R3SN | -4 / - | 4 | Partial capture |
| 09-15 16:58 | 40m | - / - | SP6LHT | +5 / - | 3 | Partial capture |
| 09-15 16:53 | 40m | -6 / -5 | DL2NYC | +6 / - | 5 | ✓ Closing observed |
| 09-14 20:56 | 80m | -1 / - | MM0VIK | - / - | 7 | Partial capture |
| 09-14 20:55 | 80m | -5 / -3 | YO6LM | +12 / 0 | 5 | ✓ Full exchange observed |
| 09-14 20:52 | 80m | 0 / - | II9IAGM | - / +5 | 4 | Partial capture |
| 09-14 20:50 | 80m | - / -21 | HF5A | +3 / - | 3 | ✓ Closing fragment |
| 09-14 20:40 | 40m | -6 / - | M7NXS/P | - / - | 2 | Partial capture |
| 09-14 20:38 | 80m | -2 / -16 | UX7QV | +14 / -2 | 5 | ✓ Full exchange observed |
| 09-14 20:33 | 80m | -10 / - | II4IANT | -7 / - | 4 | ✓ Closing observed |
| 09-14 20:32 | 80m | -7 / - | F5NNN | -6 / -5 | 8 | ✓ Closing observed |
| 09-14 20:31 | 80m | -4 / +1 | II7IABB | -3 / -9 | 4 | Partial capture |
| 09-14 20:30 | 80m | -7 / -1 | OE3OOG | 0 / - | 5 | ✓ Closing observed |
| 09-14 20:30 | 80m | - / +1 | YO4NF | +14 / - | 3 | ✓ Closing fragment |
| 09-14 20:27 | 80m | -9 / - | II8IHBC | - / -16 | 5 | Partial capture |
| 09-14 15:59 | 40m | - / -15 | PA3BBG | -18 / - | 4 | ✓ Closing fragment |
| 09-14 15:00 | 40m | -18 / -1 | IU6CWS | -16 / +7 | 4 | ✓ Full exchange observed |
| 09-14 14:55 | 40m | -15 / - | IT9KMN | - / - | 2 | ✓ Closing fragment |
| 09-14 14:44 | 40m | -8 / - | RA6OY | -1 / -6 | 9 | Partial capture |
| 09-14 14:44 | 40m | -12 / +4 | S57CT | +4 / - | 7 | ✓ Closing observed |
| 09-14 14:36 | 40m | -18 / - | HB9AMO | - / +8 | 2 | Partial capture |
| 09-14 14:32 | 40m | -19 / - | PD1RGW | - / - | 3 | Partial capture |
| 09-14 14:27 | 40m | -17 / -6 | OE6OCG | -3 / - | 4 | ✓ Full exchange observed |
| 09-13 21:03 | 40m | - / -5 | TA4SSK | -6 / - | 2 | Partial capture |
| 09-13 20:52 | 80m | - / - | ON4MAP | -8 / - | 6 | Partial capture |
| 09-13 20:50 | 80m | -2 / - | IU1DXU | - / +2 | 2 | ✓ Closing fragment |
| 09-13 20:48 | 80m | -7 / -14 | OZ1LGJ | -2 / -9 | 5 | ✓ Full exchange observed |
| 09-13 17:08 | 40m | - / -14 | OE6OCG | -8 / - | 3 | ✓ Closing fragment |
| 09-13 17:01 | 40m | - / -13 | IK1MJK/P | -10 / - | 2 | ✓ Closing fragment |
| 09-13 16:43 | 40m | -7 / - | PA5MR | - / -24 | 3 | Partial capture |
| 09-12 16:35 | 40m | -15 / - | RY3F | -2 / - | 2 | ✓ Closing observed |
| 09-12 16:33 | 40m | -11 / - | II0CDS | - / -1 | 3 | ✓ Closing fragment |
| 09-12 16:31 | 40m | -13 / -7 | IN3LHF | -8 / -11 | 5 | ✓ Full exchange observed |
| 09-11 16:22 | 40m | -3 / -12 | UR4QWW | -9 / - | 6 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 155200 -12 1685 IU7VOL II8IHBC +11 155630 -11 878 IU7VOL II0IHMG +16 155645 -11 1443 RA4ADF/P IU7VOL R+22 155700 -14 878 IU7VOL RR73; IZ3VIW <...> +14 155745 -7 1443 I8JPO IU7VOL +14 160145 -12 1442 UA4FEN IU7VOL R-10 055615 +0 642 IU7VOL PD0PMF JO32 055630 -14 1896 IU2SLI IU7VOL 73 055645 -2 642 IU7VOL PD0PMF JO32 055700 -12 1897 PD0PMF IU7VOL -04 055715 +2 642 IU7VOL PD0PMF JO32 055730 -9 1896 PD0PMF IU7VOL -06 055745 -1 641 IU7VOL PD0PMF R-07 055800 -11 1897 PD0PMF IU7VOL -06 (x2)
UTC dB Audio Message 205800 -4 2057 MM0VIK IU7VOL JN81 (x4) 200930 -8 1379 IQ4JO IU7VOL RR73 201000 -11 1379 CQ IU7VOL JN81 201900 +0 1681 IU7VOL SV1DKR KM18 (x3) 201045 -11 1416 CQ IU7VOL JN81 (x2) 201130 +9 1416 IU7VOL RA6OY KN88 (x4)
UTC dB Audio Message 171930 -1 2938 IU7VOL DB6FK 73 172100 -1 454 IU7VOL HB9RYB JN47 (x2) 172200 +2 1829 IU7VOL PD0ONP JO21 172200 -3 454 IU7VOL HB9RYB JN47 (x2) 172330 +4 1829 IU7VOL PD0ONP JO21 (x2) 172930 +5 1800 IU7VOL GJ0KYZ RR73 173700 -3 868 IU7VOL F4NBB -18 (x2) 173845 -2 868 CQ IU7VOL JN81 174430 -9 868 IU7VOL F4EFZ JN17 (x3)
UTC dB Audio Message 160330 +11 2534 IU7VOL DB2HA JO52 160400 -6 1488 IU7VOL DO3PKE JO61 160400 +18 2534 IU7VOL DB2HA R+04 160430 +4 1487 IU7VOL DO3PKE JO61 160430 +13 2534 IU7VOL DB2HA R+04 160500 +4 1486 IU7VOL DO3PKE R-02 160500 +13 2534 IU7VOL DB2HA R+04 160530 +2 1486 IU7VOL DO3PKE 73 160530 +12 2535 IU7VOL DB2HA JO52 (x3) 160730 -13 1470 IU7VOL PD4DX JO33 (x2) 161800 -13 2156 IU7VOL DO6KDS JO30 (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.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee