IZ1RFL — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IZ1RFL, decoded by SO8OO in southeastern Poland. 263 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 36 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-21.
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 263 FT8 messages attributed to IZ1RFL as the transmitting token by decoded message structure across 36 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (46%), followed by 10 m (29%) and 20 m (25%). Most decodes (53%) fell within the six-hour window 02:00-08:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (82%); the estimated median was -1 dB.
Overview
Bands
Last attributed message: 2026-09-21 17:36 UTC
Observed FT8 message patterns
- Attributed sample
- 263 messages
- Active dates
- 36 UTC dates
- Estimated median S/N
- -1 dB
- Estimated 10th-90th percentile
- -10 to +9 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 11, moderate (-15 to -9 dB) 37, strong (≥ -8 dB) 215.
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 IZ1RFL 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 IZ1RFL
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
- JN44 · 171 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,137 km (approx.)
- Last such locator decoded
- 2026-09-21 17:34 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 | IZ1RFL S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-21 17:32 | 40m | +9 / - | KH8WW | - / -17 | 9 | ✓ Closing fragment |
| 09-21 04:17 | 40m | -7 / - | JY5IB | - / -16 | 2 | ✓ Closing fragment |
| 09-21 04:11 | 40m | +7 / - | SQ9CXH | - / +9 | 2 | ✓ Closing fragment |
| 09-21 04:09 | 40m | +9 / - | 5Z4VJ | - / -11 | 4 | ✓ Closing fragment |
| 09-20 03:23 | 40m | +4 / - | YN1ZGN | - / -13 | 3 | ✓ Closing fragment |
| 09-14 04:19 | 40m | -2 / - | R3DIK/M | - / - | 2 | Partial capture |
| 09-12 04:22 | 40m | -2 / - | J38LD | - / - | 8 | Partial capture |
| 09-12 04:14 | 40m | -10 / - | D44TWO | - / - | 3 | Partial capture |
| 09-08 03:50 | 40m | -2 / - | J38DX | - / - | 5 | Partial capture |
| 09-07 16:09 | 40m | -3 / - | Z68BR | - / - | 3 | Partial capture |
| 09-06 06:18 | 40m | +6 / -1 | T77NC | -4 / -2 | 6 | ✓ Full exchange observed |
| 09-03 05:53 | 40m | -2 / - | 4O7CC | -14 / -1 | 4 | ✓ Closing observed |
| 09-03 04:55 | 40m | -2 / - | HK0RMR | - / - | 5 | Partial capture |
| 09-03 04:39 | 40m | +6 / - | HK0RMR | - / - | 7 | Partial capture |
| 08-27 09:48 | 10m | +2 / - | 5W1SA | - / -15 | 8 | ✓ Closing fragment |
| 08-27 09:38 | 10m | +3 / - | 5W1SA | - / - | 11 | Partial capture |
| 08-27 09:34 | 10m | +4 / - | 5W1SA | - / - | 2 | Partial capture |
| 08-23 04:17 | 40m | +5 / - | 9J2FI | - / -15 | 5 | ✓ Closing fragment |
| 08-21 13:25 | 10m | -6 / - | 5A1AL | - / -4 | 5 | ✓ Closing fragment |
| 08-19 04:40 | 40m | -8 / - | OJ0YL | - / -7 | 4 | ✓ Closing fragment |
| 08-12 05:03 | 40m | -13 / - | CM3EFM | - / - | 4 | Partial capture |
| 08-05 06:56 | 20m | +9 / - | NL8F | - / -16 | 2 | ✓ Closing fragment |
| 07-31 05:57 | 20m | -3 / - | 5P1KZX | -15 / - | 2 | Partial capture |
| 07-27 04:16 | 20m | +8 / - | <...> | - / -14 | 4 | Partial capture |
| 07-27 04:13 | 20m | -1 / - | <...> | - / - | 2 | Partial capture |
| 07-26 04:00 | 40m | -6 / - | T40FRC | - / - | 4 | Partial capture |
| 07-25 09:26 | 10m | +2 / - | EX7DY | - / -25 | 5 | ✓ Closing fragment |
| 07-25 03:26 | 40m | -1 / - | HI8UD | - / - | 3 | Partial capture |
| 07-25 03:20 | 40m | 0 / - | XE1PM | - / - | 2 | Partial capture |
| 07-24 17:17 | 20m | -19 / - | VU4R | - / -23 | 3 | Partial capture |
| 07-24 04:03 | 40m | -8 / - | XQ3SK | - / - | 3 | ✓ Closing fragment |
| 07-23 06:26 | 20m | -1 / - | AH6U | - / -10 | 3 | Partial capture |
| 07-23 06:22 | 20m | -5 / - | KH6U | - / - | 4 | Partial capture |
| 07-21 03:26 | 40m | +6 / - | HC2GRC | - / -11 | 3 | ✓ Closing fragment |
| 07-21 03:16 | 40m | -16 / - | VP5G | - / - | 2 | Partial capture |
| 07-09 16:38 | 20m | -10 / - | T22TT | - / - | 2 | Partial capture |
| 07-09 16:17 | 20m | -12 / - | YH7AA | - / - | 4 | Partial capture |
| 07-09 16:14 | 20m | -2 / - | YH7AA | - / - | 2 | Partial capture |
| 07-09 15:34 | 20m | -7 / - | T22TT | - / - | 4 | Partial capture |
| 07-09 15:00 | 20m | -6 / - | T22TT | - / - | 2 | Partial capture |
| 07-09 14:39 | 20m | -7 / - | YH2AZ | - / - | 2 | Partial capture |
| 07-09 14:36 | 20m | -2 / - | YH1AU | - / - | 3 | ✓ Closing fragment |
| 07-09 14:33 | 20m | -3 / - | YH1AU | - / - | 2 | Partial capture |
| 07-09 14:30 | 20m | -1 / - | YH1AA | - / -13 | 3 | ✓ Closing fragment |
| 07-05 15:23 | 10m | -10 / - | II7WWA | - / -6 | 3 | ✓ Closing fragment |
| 07-05 03:37 | 40m | -3 / - | EG4WWA | - / - | 3 | ✓ Closing fragment |
| 07-05 03:28 | 40m | -11 / - | HI8WWA | - / -10 | 5 | ✓ Closing fragment |
| 07-04 07:47 | 20m | -8 / - | II8WWA | - / - | 2 | Partial capture |
| 07-02 14:41 | 20m | -4 / - | 8A1WWA | - / - | 3 | ✓ Closing fragment |
| 07-02 09:27 | 10m | +4 / - | LZ2VQ | - / +7 | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 041030 +10 309 5Z4VJ IZ1RFL 73 041100 +5 309 SQ9CXH IZ1RFL +09 (x2) 041715 -8 1025 JY5IB IZ1RFL R-16 (x2) 042230 -7 2870 IZ1RFL KT0W RR73 173215 +11 1031 KH8WW IZ1RFL JN44 (x9)
UTC dB Audio Message 094145 +3 298 5W1SA IZ1RFL JN44 (x15)
UTC dB Audio Message 171930 -18 209 VU4R IZ1RFL R-23 035630 -9 731 IZ1RFL RR73; DL8ZBA <...> -08 035645 +3 2872 VP5G IZ1RFL 73 041315 +1 2858 <...> IZ1RFL JN44 (x6) 055700 -3 2918 5P1KZX IZ1RFL JN44 055715 -15 2480 IZ1RFL 5P1KZX +32 055830 -4 2915 SP6AXW IZ1RFL +00 065600 +6 412 NL8F IZ1RFL R-16 (x2) 065715 -6 2164 IZ1RFL R6DVV KN95
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.
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