F4IVG — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving F4IVG, decoded by SO8OO in southeastern Poland. 2,965 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 41 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-09.
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 2,965 FT8 messages attributed to F4IVG as the transmitting token by decoded message structure across 41 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (91%), followed by 40 m (5%) and 10 m (2%). The busiest six-hour window was 16:00-22:00 UTC, containing 41% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (61%); the estimated median was -5.8 dB.
Overview
Bands
Last attributed message: 2026-09-09 23:07 UTC
Observed FT8 message patterns
- Attributed sample
- 2,965 messages
- Active dates
- 41 UTC dates
- Estimated median S/N
- -5.8 dB
- Estimated 10th-90th percentile
- -18 to +7.4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 455, moderate (-15 to -9 dB) 705, strong (≥ -8 dB) 1,805.
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 F4IVG 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 F4IVG
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
- JN05 · 1,224 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,626 km (approx.)
- Last such locator decoded
- 2026-09-09 23:03 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 | F4IVG S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-09 23:04 | 40m | -8 / - | YC2UKL | - / -14 | 5 | Partial capture |
| 09-09 22:59 | 40m | - / +7 | IS0/IK2YCW | +6 / - | 2 | ✓ Closing fragment |
| 09-09 22:57 | 40m | - / - | UA9SY | -11 / - | 12 | Partial capture |
| 09-09 22:56 | 40m | -8 / - | BG8SRK | - / -13 | 2 | ✓ Closing fragment |
| 09-09 22:53 | 40m | - / - | UA9SY | -8 / - | 4 | Partial capture |
| 09-09 22:53 | 40m | -12 / - | DP75BAC | - / -15 | 5 | Partial capture |
| 09-09 22:50 | 40m | -15 / - | RX6AOB | - / -5 | 3 | ✓ Closing fragment |
| 09-09 22:44 | 40m | - / - | UA9SY | -14 / - | 4 | Partial capture |
| 09-09 22:38 | 40m | - / - | UR9QQ | -13 / - | 5 | Partial capture |
| 09-09 22:36 | 40m | -11 / -10 | RX9WM | -6 / - | 4 | ✓ Closing observed |
| 09-09 22:35 | 40m | - / - | UA9SY | -10 / - | 6 | Partial capture |
| 09-09 22:34 | 40m | -18 / - | UR4QWW | - / -5 | 2 | ✓ Closing fragment |
| 09-09 22:31 | 40m | -10 / - | R2CC | - / -17 | 4 | Partial capture |
| 09-09 22:29 | 40m | -14 / - | SM5MRQ | - / -9 | 3 | Partial capture |
| 09-09 22:27 | 40m | -11 / - | UR4QWW | - / -8 | 2 | Partial capture |
| 09-09 22:25 | 40m | -10 / - | BH3HAC | - / -18 | 3 | Partial capture |
| 09-09 22:23 | 40m | -7 / - | BH4GUU | - / -17 | 3 | Partial capture |
| 09-09 22:20 | 40m | -11 / - | PW8BR | - / -16 | 5 | Partial capture |
| 09-09 22:18 | 40m | -6 / - | RX6AOB | - / -15 | 2 | Partial capture |
| 09-09 22:15 | 40m | -6 / - | R70SAB | - / -15 | 3 | ✓ Closing fragment |
| 09-09 22:13 | 40m | -8 / - | BH4GUU | - / -20 | 2 | Partial capture |
| 09-09 22:09 | 40m | -10 / - | BG4UWQ | - / -19 | 4 | Partial capture |
| 09-09 22:06 | 40m | -13 / - | BG5JGG | - / -16 | 3 | ✓ Closing fragment |
| 09-09 22:03 | 40m | -11 / -5 | GM5DNA | -22 / 0 | 3 | ✓ Full exchange observed |
| 09-09 22:01 | 40m | -10 / - | RC9WC | - / -15 | 3 | ✓ Closing fragment |
| 09-09 21:58 | 40m | -9 / - | KB3VNG | - / -12 | 5 | Partial capture |
| 09-09 21:53 | 40m | -7 / - | SN100PKP | - / -15 | 3 | Partial capture |
| 09-09 21:53 | 40m | - / - | UR9QQ | -17 / - | 2 | Partial capture |
| 09-09 21:50 | 40m | -5 / -6 | IU5VLR | -7 / - | 4 | ✓ Closing observed |
| 09-09 21:48 | 40m | -8 / - | SN100PKP | - / -18 | 2 | Partial capture |
| 09-09 21:47 | 40m | - / -7 | IZ8PPI | -17 / - | 3 | Partial capture |
| 09-09 21:40 | 40m | -10 / - | Z68PX | - / -19 | 13 | ✓ Closing fragment |
| 09-05 22:42 | 40m | -17 / - | KB3IFH | - / -10 | 2 | Partial capture |
| 09-05 22:28 | 40m | - / -19 | R2GFN | +6 / - | 3 | ✓ Closing fragment |
| 09-05 22:23 | 40m | -16 / - | ON1DGN | - / -13 | 2 | ✓ Closing fragment |
| 09-05 22:18 | 40m | -17 / - | SP2KC | -15 / 0 | 3 | Partial capture |
| 09-05 22:15 | 40m | -20 / - | YO4FZV | - / -7 | 2 | ✓ Closing fragment |
| 09-05 22:14 | 40m | - / -8 | F1PBZ | +3 / - | 3 | Partial capture |
| 09-05 22:09 | 40m | -16 / - | LA9H | - / -12 | 5 | Partial capture |
| 09-05 22:07 | 40m | -16 / - | EA1CUI | - / +3 | 3 | Partial capture |
| 09-05 22:03 | 40m | -13 / - | UA3UBV/1 | - / -9 | 3 | Partial capture |
| 09-05 20:47 | 40m | - / +1 | M8FQT | -18 / - | 2 | ✓ Closing fragment |
| 09-05 20:34 | 40m | - / -13 | F1PBZ | -1 / - | 3 | Partial capture |
| 09-04 00:48 | 80m | - / -2 | IS0KEB | -16 / - | 4 | Partial capture |
| 09-04 00:28 | 80m | -10 / - | HK3X | - / -20 | 4 | Partial capture |
| 09-04 00:24 | 80m | -10 / - | TF3VS | - / -2 | 4 | Partial capture |
| 09-04 00:20 | 80m | -7 / - | UA9LT | -12 / -7 | 5 | ✓ Closing observed |
| 09-04 00:15 | 80m | -13 / -15 | HF40BLP | +18 / -5 | 3 | Partial capture |
| 09-04 00:15 | 80m | - / +2 | F1PBZ | +2 / - | 2 | Partial capture |
| 09-04 00:15 | 80m | - / -22 | R9SR | +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 230130 -2 2196 CQ F4IVG JN05 230145 -7 2198 F4IVG UA9SY LO63 230200 -1 2196 CQ F4IVG JN05 (x2) 230245 -10 2198 F4IVG UA9SY LO63 230300 -4 2196 CQ F4IVG JN05 230315 -11 2198 F4IVG UA9SY LO63 230330 -5 2196 CQ F4IVG JN05 230345 -10 2198 F4IVG UA9SY LO63 (x2) 230430 -8 2196 YC2UKL F4IVG -14 (x5)
UTC dB Audio Message 002230 -12 1633 F4IVG UA9LT 73 002245 -8 1633 CQ F4IVG JN05 002315 -8 1633 VE1RSM F4IVG -11 002445 -9 1633 TF3VS F4IVG -02 (x4) 002800 -11 1633 HK3X F4IVG -20 (x4) 004800 -13 2450 F4IVG IS0KEB R-02 (x4)
UTC dB Audio Message 104000 -10 844 F4IVG PE2K JO22 104015 -4 1142 DF3QL F4IVG RR73 104030 -16 845 F4IVG PE2K JO22 104030 -4 2521 F4IVG DF3QL 73 104045 +4 1142 CQ F4IVG JN05 104100 -13 844 F4IVG PE2K JO22 104100 -2 1142 F4IVG R7OV KN87 104115 -4 1141 CQ F4IVG JN05 104130 -1 1142 F4IVG R7OV KN87 104145 -2 1142 CQ F4IVG JN05 104200 +0 1142 F4IVG R7OV KN87 104215 -5 1142 CQ F4IVG JN05 104230 -7 1142 F4IVG R7OV KN87 104245 -6 1142 CQ F4IVG JN05 (x2)
UTC dB Audio Message 095230 -20 1609 DL1HBG F4IVG -13 095730 -21 1610 CQ F4IVG JN05 (x4) 100100 -24 1610 DL7UKM F4IVG -05 (x2) 100515 -4 1222 F4IVG EA3AKY JN01 100830 -24 1609 CQ F4IVG JN05 (x2) 100930 -16 2113 JA9NFO F4IVG -21 101200 -21 2113 DN9AD F4IVG RR73 101300 -18 2113 IZ6BYS F4IVG -10 (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.
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