IV3DSG — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IV3DSG, decoded by SO8OO in southeastern Poland. 3,480 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 86 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-16.
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 3,480 FT8 messages attributed to IV3DSG as the transmitting token by decoded message structure across 86 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (32%), followed by 60 m (27%) and 20 m (20%). Most decodes (61%) fell within the six-hour window 18:00-00:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (75%); the estimated median was -3 dB.
Overview
Bands
Last attributed message: 2026-09-16 05:24 UTC
Observed FT8 message patterns
- Attributed sample
- 3,480 messages
- Active dates
- 86 UTC dates
- Estimated median S/N
- -3 dB
- Estimated 10th-90th percentile
- -13.9 to +6.2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 216, moderate (-15 to -9 dB) 653, strong (≥ -8 dB) 2,611.
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 IV3DSG 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 IV3DSG
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
- JN66 · 1,434 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 755 km (approx.)
- Last such locator decoded
- 2026-09-16 05:23 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 | IV3DSG S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-16 05:23 | 80m | -2 / - | F4ILK | - / -10 | 3 | ✓ Closing fragment |
| 09-16 05:19 | 80m | 0 / - | EB3DBR | - / -7 | 3 | ✓ Closing fragment |
| 09-16 05:16 | 80m | +3 / - | VP2MAA | - / - | 6 | Partial capture |
| 09-16 05:14 | 80m | 0 / - | F5MYK | - / -16 | 2 | ✓ Closing fragment |
| 09-16 05:12 | 80m | +2 / -13 | F1TXI | -22 / -11 | 5 | ✓ Full exchange observed |
| 09-16 04:13 | 40m | -13 / -10 | RD6OX | -1 / +2 | 4 | ✓ Full exchange observed |
| 09-16 04:08 | 80m | -3 / - | KG8CW | - / - | 5 | Partial capture |
| 09-16 04:05 | 80m | -8 / - | SQ100PKP | - / - | 3 | Partial capture |
| 09-16 04:04 | 80m | -6 / - | W4WFC | - / - | 2 | Partial capture |
| 09-16 04:01 | 80m | -7 / -4 | SP8XGU | 0 / -12 | 5 | ✓ Full exchange observed |
| 09-16 03:55 | 80m | -7 / - | ON6DL | - / -4 | 8 | ✓ Closing fragment |
| 09-16 03:52 | 80m | -6 / - | K2TNO | - / - | 3 | Partial capture |
| 09-16 03:51 | 80m | - / - | OE5DML | -1 / - | 2 | Partial capture |
| 09-16 03:49 | 80m | 0 / -10 | EB3JT | -19 / -13 | 4 | ✓ Full exchange observed |
| 09-16 03:48 | 80m | 0 / -5 | TA2K | -24 / -15 | 4 | ✓ Full exchange observed |
| 09-16 03:46 | 80m | -1 / - | F1IQH | - / - | 3 | Partial capture |
| 09-16 03:43 | 80m | +6 / - | HF100PKP | - / +5 | 2 | Partial capture |
| 09-16 03:41 | 80m | +1 / -13 | SP7SZJ | +10 / +1 | 5 | ✓ Full exchange observed |
| 09-16 03:40 | 80m | +5 / - | R2RCQ | - / - | 2 | Partial capture |
| 09-16 03:37 | 60m | -12 / -1 | SV9BMG | -16 / +2 | 5 | ✓ Full exchange observed |
| 09-16 03:35 | 60m | -8 / -4 | OZ/DG4BRT | +1 / +4 | 3 | Partial capture |
| 09-16 03:32 | 60m | -2 / - | W1IE | - / -1 | 4 | ✓ Closing fragment |
| 09-16 03:29 | 60m | -6 / - | 5B4VL | - / - | 4 | Partial capture |
| 09-16 03:27 | 60m | -9 / - | KC4RNF | - / -14 | 3 | ✓ Closing fragment |
| 09-16 03:25 | 60m | +5 / - | HA0AA | - / +6 | 3 | ✓ Closing fragment |
| 09-16 03:23 | 60m | -2 / - | MI0NWA | -4 / +6 | 5 | ✓ Full exchange observed |
| 09-15 23:01 | 40m | - / +1 | EA5KB | -16 / - | 2 | ✓ Closing fragment |
| 09-15 22:55 | 80m | -6 / - | DO7KGB | - / - | 3 | Partial capture |
| 09-15 22:51 | 80m | 0 / - | SN100PKP | - / +2 | 2 | Partial capture |
| 09-15 22:51 | 80m | 0 / -6 | OE3OOG | -5 / -4 | 7 | ✓ Full exchange observed |
| 09-15 22:48 | 80m | +4 / - | SN1A | -3 / +3 | 4 | Partial capture |
| 09-15 22:47 | 80m | 0 / -17 | GI4DOH | -10 / -4 | 5 | ✓ Full exchange observed |
| 09-15 22:34 | 60m | +1 / - | G4DZE | -9 / +10 | 3 | ✓ Closing observed |
| 09-15 22:29 | 60m | +5 / - | G8OO | - / - | 6 | Partial capture |
| 09-15 22:27 | 60m | +2 / - | IW9FRA | - / - | 2 | Partial capture |
| 09-15 22:26 | 60m | +2 / - | VE1YX | -17 / -3 | 3 | ✓ Closing observed |
| 09-15 22:24 | 60m | +1 / - | OK1BN | - / -7 | 3 | ✓ Closing fragment |
| 09-15 22:21 | 60m | - / - | VE1YX | -12 / - | 2 | Partial capture |
| 09-15 22:20 | 60m | +5 / - | II8IHBC | -12 / -12 | 4 | Partial capture |
| 09-15 22:18 | 60m | +8 / -13 | GM0EZP | -12 / -4 | 4 | ✓ Full exchange observed |
| 09-15 12:16 | 40m | - / -2 | SN31ROT | +7 / - | 5 | Partial capture |
| 09-15 12:14 | 40m | -14 / - | SN40KZE | - / - | 3 | Partial capture |
| 09-15 12:11 | 40m | -17 / - | F6ARS | -12 / +8 | 5 | ✓ Full exchange observed |
| 09-15 12:09 | 40m | -13 / -2 | ON3YDM | -24 / -3 | 4 | ✓ Full exchange observed |
| 09-15 11:09 | 40m | -17 / +4 | LZ1ZF | -17 / -3 | 5 | ✓ Full exchange observed |
| 09-15 10:48 | 40m | -18 / -6 | DB1IUA | -17 / +6 | 6 | ✓ Full exchange observed |
| 09-15 10:46 | 40m | -8 / -11 | HB9SFL | -13 / - | 5 | Partial capture |
| 09-15 04:32 | 80m | -10 / - | CT7AUT | - / 0 | 2 | Partial capture |
| 09-15 04:31 | 80m | -7 / -9 | GW4HZA | -19 / -3 | 4 | ✓ Full exchange observed |
| 09-15 04:29 | 80m | +6 / - | G0ORC | - / -5 | 4 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 051400 +1 603 ON2WI IV3DSG JN66 051430 +3 603 F5MYK IV3DSG -16 (x2) 051600 +6 603 VP2MAA IV3DSG JN66 (x6) 051900 -1 604 EB3DBR IV3DSG JN66 (x3) 052330 -2 603 F4ILK IV3DSG JN66 (x3)
UTC dB Audio Message 121330 -17 2133 ON3YDM IV3DSG R-04 121400 -13 2133 SN40KZE IV3DSG JN66 (x3) 121615 +9 1186 IV3DSG SN31ROT -02 (x5) 230130 -18 1713 IV3DSG EA5KB +01 (x2) 041345 +3 947 IV3DSG RD6OX -10 041400 -16 2077 RD6OX IV3DSG R+02 041415 -5 947 IV3DSG RD6OX RR73 041430 -10 2078 RD6OX IV3DSG 73
UTC dB Audio Message 033015 -8 821 5B4VL IV3DSG JN66 (x3) 033215 +5 821 W1IE IV3DSG JN66 (x4) 033545 -9 821 OZ/DG4BRT IV3DSG JN66 033600 +1 1368 IV3DSG OZ/DG4BRT -04 033615 -8 821 OZ/DG4BRT IV3DSG R+04 033715 -12 821 SV9BMG IV3DSG JN66 033730 -18 1966 IV3DSG SV9BMG -01 033745 -11 1037 SV9BMG IV3DSG R+02 033800 -14 1966 IV3DSG SV9BMG RR73 033815 -14 1037 SV9BMG IV3DSG 73
UTC dB Audio Message 051430 -16 2333 IV3DSG R8QA -05 (x2) 051530 -5 2327 IV3DSG UA3NFG LO28 (x4) 051800 -11 2226 IV3DSG RO6G -11 052230 -4 968 IV3DSG TA7AO +08 (x2) 052445 -14 1751 IV3DSG R4AAR -14 (x2) 053515 -6 2675 IV3DSG VK2ZR -03 (x2) 193215 +7 1442 <...> IV3DSG JN66 064830 -20 1466 R8AU IV3DSG -12
UTC dB Audio Message 160300 -6 1184 OM3CPV IV3DSG R-01 (x4) 160800 -12 1586 OZ1BIN IV3DSG JN66 160815 -24 1585 IV3DSG OZ1BIN +11 160830 -10 1586 OZ1BIN IV3DSG R+05 (x2) 161600 -9 1977 ER3CT IV3DSG JN66 (x3) 161830 -12 1410 LA3YNA IV3DSG 73 162115 -9 921 ZA5G IV3DSG JN66 (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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