IU4DTV/QRP — 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 IU4DTV/QRP, decoded by SO8OO in southeastern Poland. 207 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 9 UTC dates in the available aggregate history. Observed between 2026-07-14 and 2026-11-07.
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 207 FT8 messages attributed to IU4DTV/QRP as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (43%), followed by 40 m (40%) and 20 m (8%). Most decodes (77%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.
Overview
Bands
Last attributed message: 2026-11-07 12:47 UTC
Observed FT8 message patterns
- Attributed sample
- 207 messages
- Active dates
- 9 UTC dates
- Estimated median S/N
- -16 dB
- Estimated 10th-90th percentile
- -22 to -7 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 109, moderate (-15 to -9 dB) 67, strong (≥ -8 dB) 31.
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 IU4DTV/QRP 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.
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 | IU4DTV/QRP S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-07 17:19 | 60m | - / -7 | SP9UPH | +3 / - | 2 | Partial capture |
| 11-07 15:51 | 60m | - / -1 | LZ1ST | -6 / - | 3 | Partial capture |
| 11-07 14:36 | 40m | - / -8 | DL3MIB | +1 / - | 3 | Partial capture |
| 11-07 12:47 | 40m | - / - | 9A4ZM | -12 / - | 2 | Partial capture |
| 11-07 12:46 | 40m | -15 / - | EA1UQ | - / -20 | 2 | Partial capture |
| 11-07 11:29 | 40m | - / -2 | OH3MB | -10 / - | 2 | Partial capture |
| 11-07 11:04 | 40m | - / -6 | UT2SQ | +10 / - | 2 | Partial capture |
| 11-07 07:27 | 40m | - / - | IK4TVP | -15 / - | 2 | Partial capture |
| 11-07 07:08 | 80m | - / -17 | SP2CG | +6 / - | 2 | Partial capture |
| 11-07 06:36 | 40m | - / - | SP5BN | -4 / - | 2 | Partial capture |
| 11-07 05:46 | 40m | - / - | DM2FK | -10 / - | 3 | Partial capture |
| 11-07 05:39 | 40m | - / -19 | I2NOI | -4 / - | 9 | Partial capture |
| 11-07 05:28 | 40m | - / -15 | RU6K | -2 / - | 2 | Partial capture |
| 11-07 04:47 | 40m | - / - | RC6OX | -13 / - | 2 | Partial capture |
| 11-07 04:19 | 40m | - / -3 | RA6HN | -12 / - | 4 | Partial capture |
| 11-07 03:33 | 40m | - / -21 | NG4C | -9 / - | 4 | Partial capture |
| 11-07 00:34 | 40m | - / - | F4FLF | +8 / - | 4 | Partial capture |
| 11-07 00:33 | 40m | - / - | F5PBG | +4 / - | 3 | Partial capture |
| 11-07 00:29 | 60m | - / -5 | LZ2VQ | -4 / - | 2 | Partial capture |
| 11-06 22:16 | 40m | - / - | DK8SJ | -9 / - | 2 | Partial capture |
| 11-06 21:47 | 40m | - / +7 | EA5GLY | +4 / - | 3 | Partial capture |
| 11-06 21:15 | 40m | - / - | DD7EE | -7 / - | 4 | Partial capture |
| 11-06 21:15 | 80m | -12 / - | <...> | -8 / - | 4 | ✓ Closing fragment |
| 11-06 21:04 | 40m | - / -15 | DL7ARV | -17 / - | 7 | Partial capture |
| 11-06 21:04 | 80m | - / - | LY1DY | -2 / - | 4 | Partial capture |
| 11-06 20:54 | 80m | -19 / - | <...> | +8 / - | 2 | ✓ Closing fragment |
| 11-06 20:53 | 40m | -6 / - | BA4IE | - / -18 | 4 | Partial capture |
| 11-06 20:52 | 80m | -19 / -9 | DO5OT | +4 / -11 | 4 | Partial capture |
| 11-06 20:45 | 40m | - / - | SX200H | -7 / - | 2 | ✓ Closing fragment |
| 11-06 20:41 | 80m | -16 / -15 | DL1HTY | -16 / -13 | 3 | Partial capture |
| 11-06 20:07 | 40m | -12 / - | ON7AC | - / -18 | 2 | Partial capture |
| 11-06 19:51 | 60m | - / - | <...> | -10 / - | 2 | ✓ Closing fragment |
| 11-06 18:56 | 40m | - / -18 | R6DOP | -14 / - | 2 | Partial capture |
| 11-06 18:47 | 40m | - / - | PH9OY | -16 / - | 5 | Partial capture |
| 11-06 17:54 | 40m | - / - | DL1DEU | -18 / - | 2 | Partial capture |
| 11-06 17:43 | 40m | - / - | PD1HBL | -12 / - | 4 | Partial capture |
| 11-06 17:38 | 40m | -14 / - | <...> | - / - | 2 | ✓ Closing fragment |
| 11-06 17:27 | 40m | -10 / - | <...> | - / - | 5 | ✓ Closing fragment |
| 11-06 17:24 | 40m | -15 / - | <...> | -5 / - | 2 | ✓ Closing fragment |
| 11-06 17:06 | 40m | - / -6 | 9A9A | -13 / - | 2 | Partial capture |
| 11-06 17:05 | 40m | - / -17 | LZ1DPP | -9 / - | 2 | Partial capture |
| 11-06 16:57 | 40m | -3 / - | <...> | +1 / - | 2 | ✓ Closing fragment |
| 11-06 16:36 | 40m | - / -8 | LZ1DPP | -9 / - | 19 | Partial capture |
| 11-06 16:31 | 40m | - / -8 | LZ1DPP | -13 / - | 3 | Partial capture |
| 11-06 16:27 | 40m | - / -8 | LZ1DPP | -16 / - | 3 | Partial capture |
| 11-06 16:26 | 40m | -12 / +1 | PD9HIX | -2 / - | 3 | ✓ Closing observed |
| 11-06 15:30 | 40m | -15 / - | <...> | -7 / - | 2 | ✓ Closing fragment |
| 11-06 15:19 | 40m | -13 / - | <...> | 0 / - | 3 | ✓ Closing fragment |
| 11-06 15:15 | 40m | -10 / - | <...> | - / - | 2 | ✓ Closing fragment |
| 11-06 13:54 | 40m | -19 / - | <...> | +3 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 202230 -21 1186 CQ IU4DTV/QRP (x3) 212330 -21 1238 EA5JLX IU4DTV/QRP R-16 002830 -9 2092 IU4DTV/QRP EA3FCQ -20 002930 -5 2371 IU4DTV/QRP LZ2VQ KN23 (x2) 051100 -16 848 CQ IU4DTV/QRP (x2) 155100 -5 1190 IU4DTV/QRP LZ1ST KN21 (x3) 162230 -12 1241 IU4DTV/QRP DM5ME JO52 171915 +4 2327 IU4DTV/QRP SP9UPH JO90 (x2)
UTC dB Audio Message 102445 -15 1016 IU4DTV/QRP F4IDT +07 110400 +10 836 IU4DTV/QRP UT2SQ KN29 (x2) 112930 -11 1226 IU4DTV/QRP OH3MB KP20 (x2) 124645 -17 1999 EA1UQ IU4DTV/QRP R-20 124715 -13 1616 IU4DTV/QRP 9A4ZM JN86 124745 -13 1999 EA1UQ IU4DTV/QRP R-20 124745 -11 1615 IU4DTV/QRP 9A4ZM JN86 124845 -16 1618 IU4DTV/QRP DA1ST JO41 143630 +2 1181 IU4DTV/QRP DL3MIB JN57 (x3) 155745 -7 1614 IU4DTV/QRP E74E +00 165445 -7 1303 IU4DTV/QRP 9A7BB JN75
UTC dB Audio Message 211700 -10 1029 <...> IU4DTV/QRP 73 211715 -8 1032 IU4DTV/QRP <...> 73 211800 -19 1029 ON1JP IU4DTV/QRP R-17 211830 -18 1029 <...> IU4DTV/QRP 73 212215 -2 1029 IU4DTV/QRP <...> 73 213300 -11 1029 CQ IU4DTV/QRP (x4) 215830 +7 1029 IU4DTV/QRP DL5RMH -06 221800 -8 2187 IU4DTV/QRP DM2HEY -11 052200 +0 2850 IU4DTV/QRP <...> 73 052915 -2 818 CQ IU4DTV/QRP 070800 +1 821 IU4DTV/QRP SP2CG JO94 (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.
CW
No CW receptions recorded for this callsign in the last 30 days.
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