IV3DSG — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IV3DSG, decoded by SO8OO in southeastern Poland. 3,791 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 90 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-20.
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 3,791 FT8 messages attributed to IV3DSG as the transmitting token by decoded message structure across 90 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (32%), followed by 80 m (31%) and 20 m (18%). Most decodes (63%) 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 (77%); the estimated median was -3 dB.
Overview
Bands
Last attributed message: 2026-09-20 19:59 UTC
Observed FT8 message patterns
- Attributed sample
- 3,791 messages
- Active dates
- 90 UTC dates
- Estimated median S/N
- -3 dB
- Estimated 10th-90th percentile
- -13 to +7 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 219, moderate (-15 to -9 dB) 664, strong (≥ -8 dB) 2,908.
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 · 1,593 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 755 km (approx.)
- Last such locator decoded
- 2026-09-20 19:58 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 |
|---|---|---|---|---|---|---|
| 09-20 19:58 | 80m | +1 / +4 | S58BJ | -6 / +2 | 5 | ✓ Full exchange observed |
| 09-20 19:56 | 80m | +4 / - | JA4FKX | - / - | 3 | Partial capture |
| 09-20 19:53 | 80m | +1 / -18 | SM7TZK | +2 / +1 | 6 | Partial capture |
| 09-20 19:28 | 60m | +4 / +5 | E74C | -14 / -1 | 5 | ✓ Full exchange observed |
| 09-20 19:23 | 60m | +3 / +6 | OM8FR | -4 / +3 | 7 | ✓ Full exchange observed |
| 09-20 19:20 | 60m | - / - | DL8UD | +2 / - | 2 | ✓ Closing fragment |
| 09-20 19:12 | 60m | +3 / +7 | EA8AIN | -20 / +1 | 5 | ✓ Full exchange observed |
| 09-20 19:07 | 60m | +2 / +9 | SM7NDX | -3 / +5 | 6 | ✓ Full exchange observed |
| 09-20 19:02 | 60m | +1 / - | EA9AR | - / - | 3 | Partial capture |
| 09-20 19:02 | 60m | -1 / +2 | SV1DKR | -7 / +9 | 5 | ✓ Full exchange observed |
| 09-20 19:01 | 60m | +2 / - | F6HRP | +9 / +10 | 5 | ✓ Full exchange observed |
| 09-20 18:58 | 60m | 0 / 0 | SQ2BXI | -6 / -7 | 5 | ✓ Full exchange observed |
| 09-20 18:57 | 60m | +2 / - | OE3UKW | +10 / +7 | 5 | ✓ Full exchange observed |
| 09-20 18:55 | 60m | +2 / - | CN8DN | - / -8 | 5 | ✓ Closing fragment |
| 09-20 18:53 | 60m | +4 / +4 | OZ1NIB | -2 / +3 | 5 | ✓ Full exchange observed |
| 09-20 18:51 | 60m | +4 / +8 | DL1DOS | 0 / +9 | 6 | ✓ Full exchange observed |
| 09-19 19:44 | 80m | -5 / - | OE9HGV | -8 / - | 6 | ✓ Full exchange observed |
| 09-19 19:38 | 80m | -7 / - | RA9SJG | - / - | 2 | Partial capture |
| 09-19 19:34 | 80m | 0 / - | V51WH | - / - | 4 | Partial capture |
| 09-19 19:03 | 60m | +6 / - | OZ1SMB | - / - | 2 | Partial capture |
| 09-18 20:01 | 60m | +8 / -6 | SP9FBN | +2 / -1 | 8 | ✓ Full exchange observed |
| 09-18 19:58 | 60m | +11 / - | OZ3MC | -8 / +2 | 6 | ✓ Full exchange observed |
| 09-18 19:56 | 60m | +11 / - | CU3EM | - / -14 | 3 | ✓ Closing fragment |
| 09-18 19:51 | 60m | +7 / - | EB5R | - / -10 | 7 | ✓ Closing fragment |
| 09-18 19:48 | 60m | +7 / - | DL6GCE | - / -8 | 5 | ✓ Closing fragment |
| 09-18 19:45 | 60m | +8 / - | OS4K | - / -15 | 2 | ✓ Closing fragment |
| 09-18 19:43 | 60m | +10 / +5 | SM0EJR | -6 / -1 | 5 | ✓ Full exchange observed |
| 09-18 19:37 | 60m | -3 / - | OZ/DG4BRT | - / -4 | 3 | Partial capture |
| 09-18 19:30 | 60m | +3 / +5 | IK2ZJP | -20 / +6 | 11 | ✓ Full exchange observed |
| 09-18 19:27 | 60m | +1 / +6 | DG0OFT | -1 / +10 | 7 | ✓ Full exchange observed |
| 09-18 19:26 | 60m | 0 / - | DK2BK | 0 / +10 | 5 | ✓ Full exchange observed |
| 09-18 19:24 | 60m | -2 / - | IK2ZJP | - / - | 3 | Partial capture |
| 09-18 19:21 | 60m | 0 / -6 | SP9DPI | -17 / -25 | 7 | ✓ Full exchange observed |
| 09-18 19:20 | 60m | -2 / -5 | HA3PG | -7 / -3 | 6 | ✓ Full exchange observed |
| 09-18 19:17 | 60m | +1 / -8 | SQ8AA | 0 / -4 | 17 | ✓ Full exchange observed |
| 09-18 19:17 | 60m | +2 / - | F4GAJ | - / - | 2 | Partial capture |
| 09-18 19:13 | 60m | +2 / - | IK2ZJP | - / - | 7 | Partial capture |
| 09-18 19:10 | 60m | 0 / -3 | E79D | +6 / +8 | 6 | ✓ Full exchange observed |
| 09-18 19:07 | 60m | 0 / - | F4GAJ | - / - | 6 | Partial capture |
| 09-18 19:05 | 60m | -1 / - | PA6OOI | - / - | 3 | Partial capture |
| 09-18 19:03 | 60m | -5 / - | PA0GSP | -8 / -1 | 4 | ✓ Closing observed |
| 09-18 19:01 | 60m | -3 / - | F5RMK | -10 / -1 | 4 | ✓ Closing observed |
| 09-18 18:57 | 60m | -4 / - | IZ3PZM | - / -18 | 2 | ✓ Closing fragment |
| 09-18 18:55 | 60m | -5 / - | IK2DUW | - / -4 | 4 | ✓ Closing fragment |
| 09-18 18:53 | 60m | -4 / +7 | DC5CH | -4 / -1 | 5 | ✓ Full exchange observed |
| 09-18 18:51 | 60m | -4 / - | EA3JIJ | - / -13 | 3 | ✓ Closing fragment |
| 09-18 18:50 | 60m | 0 / - | DL5ZG | -10 / +2 | 3 | ✓ Closing observed |
| 09-18 11:58 | 40m | -8 / -15 | S55X | -22 / +2 | 4 | ✓ Full exchange observed |
| 09-18 11:53 | 40m | -8 / - | 9A60CBM | - / - | 4 | Partial capture |
| 09-18 06:34 | 60m | +6 / - | G0TSM/P | - / -16 | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 194715 +8 1589 IV3DSG RK6OQ KN87 195345 +0 1099 SM7TZK IV3DSG JN66 (x2) 195430 -2 1099 IV3DSG SM7TZK -18 195445 +4 670 SM7TZK IV3DSG R+01 195500 +5 1099 IV3DSG SM7TZK -18 195515 -1 670 SM7TZK IV3DSG R-01 195615 +6 670 JA4FKX IV3DSG JN66 (x3) 195815 -5 670 S58BJ IV3DSG JN66 195830 -8 1506 IV3DSG S58BJ +04 195845 +4 670 S58BJ IV3DSG R+02 195900 -3 1506 IV3DSG S58BJ RR73 195915 +3 670 S58BJ IV3DSG 73
UTC dB Audio Message 191345 +4 1128 EA8AIN IV3DSG 73 192030 +1 1444 IV3DSG DL8UD +11 (x2) 192330 +4 1129 OM8FR IV3DSG JN66 (x3) 192445 -3 1371 IV3DSG OM8FR +06 192500 +1 1129 OM8FR IV3DSG R+03 192515 -5 1371 IV3DSG OM8FR RR73 192530 +4 1129 OM8FR IV3DSG 73 192800 +6 1129 E74C IV3DSG JN66 192815 -14 1561 IV3DSG E74C +05 192830 +3 1129 E74C IV3DSG R-01 192845 -13 1561 IV3DSG E74C RR73 192900 +4 1129 E74C IV3DSG 73
UTC dB Audio Message 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 064315 -2 876 IV3DSG DL7GAL +08 (x2) 115315 -8 513 9A60CBM IV3DSG JN66 (x4) 115545 -4 513 IW2JIE IV3DSG JN66 115845 -21 1586 IV3DSG S55X -15 115900 -7 513 S55X IV3DSG R+02 115915 -23 1586 IV3DSG S55X RR73 115930 -10 512 S55X 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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