IU7VOL — 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 IU7VOL, decoded by SO8OO in southeastern Poland. 1,868 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 94 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-11-06.
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 1,868 FT8 messages attributed to IU7VOL as the transmitting token by decoded message structure across 94 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (39%), followed by 40 m (33%) and 20 m (15%). 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: 2026-11-06 05:54 UTC
Observed FT8 message patterns
- Attributed sample
- 1,868 messages
- Active dates
- 94 UTC dates
- Estimated median S/N
- -7 dB
- Estimated 10th-90th percentile
- -16 to +3.6 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 194, moderate (-15 to -9 dB) 604, strong (≥ -8 dB) 1,070.
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 · 836 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,009 km (approx.)
- Last such locator decoded
- 2026-11-06 05:54 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 | IU7VOL S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-06 05:55 | 80m | - / -8 | OM3ZAS | +2 / - | 2 | Partial capture |
| 10-30 04:34 | 40m | -10 / - | WA2HIP | - / - | 2 | Partial capture |
| 10-30 04:31 | 40m | -4 / - | RZ4FWA | -19 / -4 | 3 | ✓ Closing observed |
| 10-30 04:31 | 40m | -3 / -2 | M9XPN | -14 / - | 9 | ✓ Full exchange observed |
| 10-30 04:30 | 40m | - / - | PG0T | -8 / - | 2 | Partial capture |
| 10-30 04:26 | 40m | -5 / - | UA3ZQN | +1 / - | 5 | Partial capture |
| 10-30 04:24 | 40m | -5 / - | PG0T | -12 / -6 | 3 | Partial capture |
| 10-30 04:18 | 40m | -6 / - | WA2HIP | - / - | 10 | Partial capture |
| 10-29 18:13 | 80m | - / -6 | DL5SBY | +6 / - | 2 | ✓ Closing fragment |
| 10-29 18:11 | 80m | - / +5 | DB1TH | +13 / - | 3 | ✓ Closing fragment |
| 10-29 18:08 | 80m | - / -16 | R4HHN | -6 / - | 2 | Partial capture |
| 10-29 18:06 | 80m | - / -18 | R5AV | +1 / - | 2 | ✓ Closing fragment |
| 10-29 18:03 | 80m | - / +1 | IZ4EFV | -12 / - | 2 | ✓ Closing fragment |
| 10-29 17:57 | 80m | - / -11 | SP9ALK | -4 / - | 3 | Partial capture |
| 10-29 17:56 | 80m | - / -10 | DO5PY | -4 / - | 3 | ✓ Closing fragment |
| 10-29 17:54 | 80m | - / -8 | DO9SAM | +7 / - | 3 | ✓ Closing fragment |
| 10-28 21:29 | 40m | - / - | GW5VOG | -11 / - | 9 | Partial capture |
| 10-28 21:17 | 80m | -2 / - | SP7ENZ | +8 / +5 | 4 | ✓ Closing observed |
| 10-28 21:11 | 80m | - / - | DG5PW | -10 / - | 2 | Partial capture |
| 10-26 16:48 | 40m | - / - | IZ4AIF | -1 / - | 4 | Partial capture |
| 10-26 16:46 | 40m | - / -5 | DL6ZOG | -8 / - | 3 | ✓ Closing fragment |
| 10-26 16:31 | 40m | - / +7 | DF5DY | -8 / - | 4 | ✓ Closing fragment |
| 10-26 16:30 | 40m | -10 / - | TA3NK | -17 / - | 2 | ✓ Closing observed |
| 10-26 16:27 | 40m | -8 / -11 | F1UFX | -9 / -7 | 6 | ✓ Full exchange observed |
| 10-26 16:21 | 40m | -3 / - | F1UFX | - / -4 | 3 | ✓ Closing fragment |
| 10-26 16:20 | 40m | -5 / - | DK2NO | - / +8 | 2 | ✓ Closing fragment |
| 10-26 16:20 | 40m | -6 / - | DH2NJS | -5 / -17 | 14 | Partial capture |
| 10-25 16:45 | 40m | - / - | IK1NPE | -10 / - | 2 | Partial capture |
| 10-25 16:44 | 40m | - / - | DJ1TU | -2 / - | 4 | Partial capture |
| 10-25 16:41 | 40m | -7 / - | OE7JUM | - / +9 | 4 | ✓ Closing fragment |
| 10-25 16:40 | 40m | -7 / - | HB9ISP | - / +3 | 2 | ✓ Closing fragment |
| 10-25 06:00 | 40m | -11 / 0 | F5NNN | -14 / - | 3 | ✓ Closing observed |
| 10-25 05:59 | 40m | -14 / -7 | DK9LF | -17 / -10 | 5 | ✓ Full exchange observed |
| 10-25 05:57 | 40m | - / -1 | F1PBZ | -2 / - | 2 | ✓ Closing fragment |
| 10-25 05:52 | 40m | -7 / - | AA3DP | - / - | 6 | Partial capture |
| 10-25 05:50 | 40m | -12 / - | WZ4K | - / -18 | 4 | ✓ Closing fragment |
| 10-25 05:48 | 40m | -14 / - | DH2NJS | - / -17 | 2 | Partial capture |
| 10-25 05:43 | 40m | -16 / - | DH2NJS | -10 / -10 | 4 | Partial capture |
| 10-25 05:37 | 40m | - / -15 | DK8HC/P | -11 / - | 3 | Partial capture |
| 10-25 05:37 | 40m | -12 / -1 | PD1DBL | -8 / -19 | 12 | ✓ Full exchange observed |
| 10-24 16:19 | 40m | -17 / - | EA4IXO | - / -17 | 3 | Partial capture |
| 10-24 16:15 | 40m | - / -3 | DK9GZ | -13 / - | 3 | ✓ Closing fragment |
| 10-22 17:28 | 40m | -10 / -12 | 2E0ROJ | -14 / -8 | 7 | Partial capture |
| 10-22 17:27 | 40m | - / - | PA0MUS | -11 / - | 2 | Partial capture |
| 10-22 17:22 | 40m | -8 / - | F4NKT | - / -19 | 2 | Partial capture |
| 10-22 17:14 | 80m | - / - | PE2JMR | -2 / - | 3 | Partial capture |
| 10-21 20:33 | 80m | - / +4 | IW0FGX | -4 / - | 3 | ✓ Closing fragment |
| 10-21 20:33 | 80m | - / -2 | SV1DZB | -17 / - | 3 | ✓ Closing fragment |
| 10-21 20:28 | 80m | +8 / - | SM7TZK | - / - | 2 | Partial capture |
| 10-21 20:26 | 80m | - / -10 | DD8BA | +1 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 180630 +0 971 IU7VOL R5AV -18 (x2) 180830 -4 1017 IU7VOL R4HHN R-16 (x2) 181100 +11 2902 IU7VOL DB1TH JN68 (x3) 181300 +11 969 IU7VOL DA1ST JO41 181330 +7 971 IU7VOL DL5SBY R-06 181400 -16 2399 IU7VOL EA7KOM IM87 181400 +4 971 IU7VOL DL5SBY 73 181630 -12 427 IU7VOL IQ8CUM JN70 055445 -11 265 CQ IU7VOL JN81 055530 +0 1953 IU7VOL OM3ZAS -08 (x2)
UTC dB Audio Message 043100 -7 1007 IU7VOL M9XPN IO91 043115 -8 1007 RZ4FWA IU7VOL -04 043130 -14 1007 IU7VOL M9XPN IO91 043145 -1 1006 RZ4FWA IU7VOL RR73 043200 -19 1722 IU7VOL RZ4FWA 73 043200 -15 1007 IU7VOL M9XPN IO91 (x2) 043245 -3 1007 DG4SCG IU7VOL RR73 043315 +0 1006 M9XPN IU7VOL +11 (x2) 043400 -12 1006 IU7VOL M9XPN R-02 043415 -6 1006 M9XPN IU7VOL RR73 043430 -16 1006 IU7VOL M9XPN R-02 043445 -9 1006 WA2HIP IU7VOL JN81 (x2)
UTC dB Audio Message 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) 154215 -9 1727 CQ IU7VOL JN81 152500 -19 1594 IU7VOL CS7BPG IN51 (x3) 165645 -17 1059 CQ IU7VOL JN81
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)
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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