IU8RFW — 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 IU8RFW, decoded by SO8OO in southeastern Poland. 10,724 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 84 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-22.
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 10,724 FT8 messages attributed to IU8RFW as the transmitting token by decoded message structure across 84 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (82%), followed by 20 m (18%) and 10 m (0%). The busiest six-hour window was 19:00-01:00 UTC, containing 46% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9.5 dB.
Overview
Bands
Last attributed message: 2026-10-22 14:07 UTC
Observed FT8 message patterns
- Attributed sample
- 10,724 messages
- Active dates
- 84 UTC dates
- Estimated median S/N
- -9.5 dB
- Estimated 10th-90th percentile
- -19 to -0.1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2,364, moderate (-15 to -9 dB) 3,544, strong (≥ -8 dB) 4,816.
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 IU8RFW 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 IU8RFW
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
- JN70 · 7,607 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,175 km (approx.)
- Last such locator decoded
- 2026-10-22 14:07 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 | IU8RFW S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-22 14:04 | 40m | -18 / - | 9A4ZM | - / - | 5 | Partial capture |
| 10-22 13:56 | 40m | -22 / -12 | PA7ZZ | -12 / - | 3 | ✓ Closing observed |
| 10-22 13:46 | 40m | -18 / - | PV2YZC | - / - | 3 | Partial capture |
| 10-22 13:43 | 40m | -19 / - | IK6VXO | - / - | 4 | Partial capture |
| 10-22 13:34 | 40m | -21 / +10 | E77D | +6 / - | 4 | ✓ Full exchange observed |
| 10-22 13:28 | 40m | -20 / - | RD6OX | - / - | 2 | Partial capture |
| 10-22 13:21 | 40m | -21 / - | IZ3NUI | - / -8 | 4 | ✓ Closing fragment |
| 10-22 13:18 | 40m | -21 / - | DU7G | - / - | 3 | Partial capture |
| 10-22 08:58 | 40m | - / +3 | ON3PDM | -14 / - | 2 | Partial capture |
| 10-22 08:37 | 40m | -7 / -8 | PD7JLP | -18 / - | 3 | ✓ Closing observed |
| 10-22 08:30 | 40m | - / +1 | SP6CC | -16 / - | 2 | ✓ Closing fragment |
| 10-22 08:01 | 40m | -3 / - | ON8CA | - / - | 4 | Partial capture |
| 10-22 07:59 | 40m | -3 / -22 | M0OXO | -13 / -18 | 8 | ✓ Full exchange observed |
| 10-22 07:55 | 40m | -8 / - | DC1SN | - / - | 2 | Partial capture |
| 10-22 07:51 | 40m | -8 / - | US1MM | - / - | 2 | Partial capture |
| 10-22 07:48 | 40m | -9 / - | F4NHL | - / - | 5 | Partial capture |
| 10-22 07:47 | 40m | -7 / - | DL3KD | -6 / -10 | 4 | ✓ Closing observed |
| 10-22 07:39 | 40m | -8 / - | IK8OAM | - / - | 3 | Partial capture |
| 10-22 07:35 | 40m | -6 / - | OE2VDL | - / - | 2 | Partial capture |
| 10-22 07:34 | 40m | -8 / -8 | OZ8R | +4 / - | 3 | ✓ Closing observed |
| 10-22 07:24 | 40m | -6 / - | IZ1UJM | - / -9 | 2 | Partial capture |
| 10-22 07:10 | 40m | -8 / - | YL3ASK | - / - | 4 | Partial capture |
| 10-22 07:07 | 40m | -3 / - | ON5GM | - / - | 5 | Partial capture |
| 10-22 07:06 | 40m | -6 / - | F6AUS | -4 / -2 | 3 | ✓ Closing observed |
| 10-22 07:02 | 40m | -7 / - | IT9FOW | - / - | 3 | Partial capture |
| 10-22 06:58 | 40m | -8 / -2 | UA3DPM | -2 / - | 4 | Partial capture |
| 10-22 06:49 | 40m | -5 / -8 | ON7KRI | -12 / +4 | 4 | ✓ Full exchange observed |
| 10-22 06:42 | 40m | -2 / -14 | I4VOL | -10 / - | 5 | ✓ Full exchange observed |
| 10-22 06:40 | 40m | -1 / -13 | R2HM | -9 / - | 5 | ✓ Closing observed |
| 10-22 06:37 | 40m | +2 / - | F4HEN | -9 / -1 | 4 | ✓ Closing observed |
| 10-22 06:35 | 40m | -2 / - | IK3JLT | - / - | 4 | Partial capture |
| 10-22 06:33 | 40m | - / -10 | DL0MLU | -10 / - | 2 | ✓ Closing fragment |
| 10-22 06:29 | 40m | -2 / - | IU2PYG | - / - | 4 | Partial capture |
| 10-22 06:24 | 40m | +1 / -10 | ES6RQ | +1 / -7 | 11 | ✓ Full exchange observed |
| 10-22 06:22 | 40m | +4 / -6 | IZ8HXG | -18 / -6 | 3 | Partial capture |
| 10-22 06:14 | 40m | 0 / - | DL5XL | - / - | 5 | Partial capture |
| 10-22 06:11 | 40m | -2 / - | EA1U | - / - | 5 | Partial capture |
| 10-22 06:08 | 40m | -1 / -1 | IV3GOW | -10 / - | 9 | ✓ Full exchange observed |
| 10-22 06:05 | 40m | -2 / - | F1JUM | - / - | 6 | Partial capture |
| 10-22 06:01 | 40m | -2 / - | R4DI | - / - | 4 | Partial capture |
| 10-22 05:54 | 40m | +1 / - | ON3UA | - / - | 6 | Partial capture |
| 10-22 05:51 | 40m | +2 / - | HA5AQ | - / - | 6 | Partial capture |
| 10-22 05:48 | 40m | +1 / - | HB9AMO | - / - | 5 | Partial capture |
| 10-22 05:46 | 40m | -10 / - | HB9ITZ/P | - / -15 | 2 | ✓ Closing fragment |
| 10-22 05:37 | 40m | -7 / -9 | LZ4DPB | -6 / - | 6 | ✓ Closing observed |
| 10-22 05:34 | 40m | -8 / - | YL2CI | - / -4 | 2 | ✓ Closing fragment |
| 10-22 05:31 | 40m | -5 / - | OK2SV | - / - | 4 | Partial capture |
| 10-22 05:28 | 40m | -4 / - | SP3SPK | - / -8 | 4 | ✓ Closing fragment |
| 10-22 05:23 | 40m | -3 / - | DF7QR | - / -23 | 8 | ✓ Closing fragment |
| 10-22 05:20 | 40m | +2 / - | YL3BF | - / - | 6 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 134530 -20 1983 IK6VXO IU8RFW JN70 134615 -18 1983 PV2YZC IU8RFW JN70 (x3) 134945 -20 1983 DF2QZ IU8RFW JN70 135415 -17 1983 CQ IU8RFW JN70 135600 -22 1983 PA7ZZ IU8RFW JN70 135615 -10 1996 IU8RFW PA7ZZ -12 (x2) 140415 -17 1983 9A4ZM IU8RFW JN70 (x5) 140715 -23 1983 CQ IU8RFW JN70
UTC dB Audio Message 125215 -11 973 IU8RFW F4NDC -07 (x2) 151415 -17 1971 IU8RFW F6IQA -07 080245 -4 2656 IU8RFW ON3PVC -02 (x2) 081130 -24 1879 SP6LUT IU8RFW JN70 081630 -24 1879 UR9QQ IU8RFW RR73 081815 -11 790 IU8RFW F4LZZ -15 (x2) 090630 -21 2013 DK0MM IU8RFW R+09 110730 -24 1852 IU8RFW F4FSY +01 102945 -16 1064 IU8RFW CU2AP -15 (x2)
UTC dB Audio Message 003915 -2 1451 IU8RFW DK7UY JO44 (x4)
UTC dB Audio Message 194930 -12 1688 IU8RFW G0UDE -01 (x2) 195100 -8 611 DC7PM IU8RFW JN70 195245 -11 694 IU8RFW F/PE1DST +04 195615 -11 376 IU8RFW F4NKF -03 (x2) 195930 -14 909 RA2FG IU8RFW JN70 200030 -17 1105 RT2F IU8RFW JN70 200215 -2 2432 IU8RFW OZ1LGJ -15 (x3) 201015 -21 1487 SP9AMH IU8RFW JN70 201715 -21 1832 IU8RFW <...> -22 202300 -22 1404 <...> IU8RFW JN70 165930 -13 1960 IU8RFW RA3P -08
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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