IS0UDF — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IS0UDF, decoded by SO8OO in southeastern Poland. 246 related FT8 messages, 11 CQ messages, observed on 80m, 40m, 20m, 10m, across 28 UTC dates. Heard between 2026-05-04 and 2026-07-27.
These are automated observations at the SO8OO receiver, not the station's official logbook. Times are UTC. Decoder S/N describes messages received at SO8OO; inferred entity and location data may be inaccurate for portable, remote or special-event operation.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee
Overview
Frequent QSO partners observed at SO8OO
Stations IS0UDF worked most often, as logged from our receiver:
Activity Heatmap
Locator transmitted by IS0UDF
Approximate centre of JN40, decoded 2026-08-20 18:35 UTC. A transmitted locator is not proof of the operator's permanent location.
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 | IS0UDF S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-20 18:29 | 20m | -4 / - | XU7O | - / - | 2 | Partial capture |
| 08-20 18:22 | 20m | -6 / - | XU7O | - / - | 2 | Partial capture |
| 07-27 22:57 | 20m | - / - | EA6UE | -12 / - | 2 | Partial capture |
| 07-05 22:37 | 40m | - / -7 | GB2WWA | -16 / - | 2 | ✓ Closing fragment |
| 07-05 22:33 | 80m | - / -7 | 9A5E | +16 / - | 2 | ✓ Closing fragment |
| 07-04 20:25 | 40m | - / -16 | DJ0MAB | -21 / - | 3 | Partial capture |
| 07-03 20:56 | 40m | - / -14 | TM2WWA | -2 / - | 2 | ✓ Closing fragment |
| 06-30 19:01 | 20m | - / - | SV1EGE | -10 / - | 3 | Partial capture |
| 06-30 13:24 | 20m | - / -18 | SN0WWA | -18 / - | 2 | ✓ Closing fragment |
| 06-30 13:19 | 20m | - / -18 | II3WWA | -15 / - | 2 | ✓ Closing fragment |
| 06-30 12:41 | 10m | - / -23 | F6EXV | -22 / - | 4 | ✓ Closing fragment |
| 06-29 21:06 | 40m | - / -14 | SN1WWA | -14 / - | 2 | ✓ Closing fragment |
| 06-29 20:46 | 40m | - / -14 | TM2WWA | -12 / - | 2 | ✓ Closing fragment |
| 06-29 20:29 | 40m | - / -8 | II3WWA | 0 / - | 2 | ✓ Closing fragment |
| 06-29 14:57 | 20m | - / -22 | GJ0KYZ | -5 / - | 4 | Partial capture |
| 06-29 14:53 | 20m | - / -17 | GB2WWA | -2 / - | 4 | ✓ Closing fragment |
| 06-24 18:14 | 10m | - / -1 | PA1X | -17 / - | 4 | ✓ Closing fragment |
| 06-13 16:56 | 20m | - / -10 | 4O4DB | -9 / - | 3 | ✓ Closing fragment |
| 06-10 22:56 | 40m | - / -7 | IQ9BF | -15 / - | 3 | ✓ Closing fragment |
| 06-10 22:41 | 80m | - / -14 | HB9EFK | +12 / - | 2 | ✓ Closing fragment |
| 06-10 22:39 | 80m | - / -14 | Z62NS | +2 / - | 2 | ✓ Closing fragment |
| 06-10 22:31 | 20m | - / -7 | IW9HPG | +14 / - | 2 | Partial capture |
| 06-10 21:16 | 20m | - / - | F1PPH | -20 / - | 3 | Partial capture |
| 06-07 13:46 | 10m | - / -8 | D2UY | +4 / - | 4 | Partial capture |
| 06-07 12:56 | 20m | - / - | F4BYA | -8 / - | 2 | Partial capture |
| 06-05 13:26 | 10m | -16 / - | C91RU | - / - | 10 | Partial capture |
| 06-03 12:28 | 10m | -17 / -9 | R2EA | +8 / -13 | 4 | ✓ Full exchange observed |
| 06-03 12:25 | 10m | - / -7 | DO3NN | -5 / - | 2 | ✓ Closing fragment |
| 06-03 12:25 | 10m | - / -19 | YU5BU | +4 / - | 4 | ✓ Closing fragment |
| 06-03 12:23 | 10m | -16 / 0 | DL1NEO | +5 / - | 4 | ✓ Closing observed |
| 05-27 19:22 | 10m | - / -15 | LW2EDM | -4 / - | 2 | Partial capture |
| 05-27 12:26 | 10m | -15 / - | YB9FAO | - / - | 2 | Partial capture |
| 05-27 08:38 | 10m | - / -21 | VU2KPH | -12 / - | 3 | Partial capture |
| 05-26 21:05 | 40m | -16 / - | F4LEB | -16 / -12 | 3 | ✓ Closing observed |
| 05-26 21:04 | 40m | - / - | UX7QV | 0 / - | 2 | ✓ Closing fragment |
| 05-26 20:52 | 40m | - / - | IW0ECV | +4 / - | 2 | ✓ Closing fragment |
| 05-26 20:45 | 40m | -11 / - | IK7NXU | -1 / +10 | 6 | ✓ Full exchange observed |
| 05-26 20:39 | 40m | - / -24 | DJ0ABM | +2 / - | 2 | ✓ Closing fragment |
| 05-26 20:36 | 40m | -12 / - | IS0YHV | - / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 183930 -12 2495 IS0UDF RR73; RN3ZBX <...> +00 184215 -23 1930 SN2WWA IS0UDF 73 190100 -12 1272 IS0UDF SV1EGE KM17 (x3) 211830 -18 1815 IS0UDF CS2WWA RR73 133930 -18 1076 IS0UDF II7WWA -08 131045 -12 2591 IS0UDF F1PBZ -13 225700 -9 1841 IS0UDF EA6UE JM19 (x2) 182245 -4 1310 XU7O IS0UDF JN40 (x5)
UTC dB Audio Message 170845 -8 1138 IS0UDF II0RTER -05 202930 +0 2808 IS0UDF II3WWA -08 (x2) 204630 -11 1204 IS0UDF TM2WWA -14 (x2) 210615 -15 2033 IS0UDF SN1WWA -14 (x2) 201700 -17 2005 IS0UDF II9WWA RR73 205600 -2 1222 IS0UDF TM2WWA -14 (x2) 202530 -24 1606 IS0UDF DJ0MAB JN49 (x3) 223730 -16 2163 IS0UDF GB2WWA -07 (x2)
UTC dB Audio Message 223930 +3 1353 IS0UDF Z62NS -14 (x2) 224145 +11 2532 IS0UDF HB9EFK -14 (x2) 223130 -18 1576 SX0W IS0UDF JN40 223345 +13 2128 IS0UDF 9A5E -07 (x2)
UTC dB Audio Message 205445 -21 1871 IS0UDF M0BEW -09 195730 -23 1704 CQ IS0UDF JN40 181315 -7 2287 IS0UDF G7ILZ IO93 181415 -14 2216 IS0UDF PA1X JO22 (x4) 123200 -9 759 IS0UDF GB2WWA RR73 124100 -24 1755 IS0UDF F6EXV R-23 (x4) 124330 +2 2184 IS0UDF F4FSY -13 124715 -6 1861 IS0UDF II7WWA -12 130445 -20 1469 IS0UDF II9WWA -05
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.