HF780C — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving HF780C, decoded by SO8OO in southeastern Poland. 226 FT8 messages attributed to this token as transmitter, on 40m, across 6 UTC dates in the available aggregate history. Observed between 2026-08-29 and 2026-09-14.
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 226 FT8 messages attributed to HF780C as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). Several six-hour UTC windows tied for the largest share (59%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (90%); the estimated median was -3 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 226 messages
- Active dates
- 6 UTC dates
- Estimated median S/N
- -3 dB
- Estimated 10th-90th percentile
- -9 to +2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 21, strong (≥ -8 dB) 203.
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 HF780C 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.
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 | HF780C S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-14 16:51 | 40m | -4 / - | SP100PKP | -5 / - | 5 | ✓ Closing observed |
| 09-14 16:46 | 40m | -4 / - | R1QF/P | - / - | 3 | ✓ Closing fragment |
| 09-14 16:41 | 40m | -4 / - | R1QF/P | -7 / - | 3 | ✓ Closing observed |
| 09-14 16:37 | 40m | -2 / - | R3DIK/M | -11 / - | 3 | ✓ Closing observed |
| 09-14 16:30 | 40m | +6 / - | OZ/DG4BRT | - / - | 2 | ✓ Closing fragment |
| 09-14 16:24 | 40m | 0 / - | R3DIK/M | - / - | 3 | ✓ Closing fragment |
| 09-14 16:17 | 40m | +1 / - | R1QF/P | -2 / - | 4 | ✓ Closing observed |
| 09-12 18:12 | 40m | - / - | SP100PKP | -4 / - | 2 | ✓ Closing fragment |
| 09-12 18:07 | 40m | -2 / - | RA7E/P | -2 / - | 4 | ✓ Closing observed |
| 09-12 17:57 | 40m | -3 / - | SP9DPM/P | +2 / - | 7 | ✓ Closing observed |
| 09-12 17:49 | 40m | -2 / - | IK1MJK/P | +3 / - | 3 | ✓ Closing observed |
| 09-12 17:44 | 40m | -2 / - | IK1MJK/P | - / - | 3 | ✓ Closing fragment |
| 09-12 17:40 | 40m | -4 / - | UB3ADO/P | -16 / - | 2 | ✓ Closing observed |
| 09-12 17:29 | 40m | -2 / - | UB3ADO/P | - / - | 4 | ✓ Closing fragment |
| 09-12 17:24 | 40m | -2 / - | EM70WWW | -8 / - | 3 | ✓ Closing observed |
| 09-12 17:20 | 40m | +2 / - | EM70WWW | - / - | 2 | ✓ Closing fragment |
| 09-11 09:46 | 40m | - / - | DK2MAX | -13 / - | 3 | Partial capture |
| 09-11 09:46 | 40m | - / - | KD0NDU | -17 / - | 3 | Partial capture |
| 09-11 09:45 | 40m | -8 / - | SV8/F6BLP | -11 / - | 5 | ✓ Closing observed |
| 09-11 09:37 | 40m | - / - | Z3/DD3ZZ | -13 / - | 2 | Partial capture |
| 09-11 09:35 | 40m | -10 / - | WS7ZCL/R | - / - | 6 | ✓ Closing fragment |
| 09-11 09:33 | 40m | -16 / - | SP100PKP | - / - | 2 | ✓ Closing fragment |
| 09-11 09:25 | 40m | -5 / - | WS7ZCL/R | -4 / - | 5 | ✓ Closing observed |
| 09-11 09:20 | 40m | -6 / - | SP100PKP | -8 / - | 7 | ✓ Closing observed |
| 09-08 16:41 | 40m | -2 / - | SV8/F6BLP | -10 / - | 11 | ✓ Closing observed |
| 09-08 16:37 | 40m | - / - | SP100PKP | -6 / - | 2 | ✓ Closing fragment |
| 09-08 15:51 | 40m | -3 / - | SP0YAGI | - / - | 3 | ✓ Closing fragment |
| 09-08 15:49 | 40m | -3 / - | R1943OD | -4 / - | 3 | ✓ Closing observed |
| 09-08 15:44 | 40m | -5 / - | SQ100PKP | +3 / - | 5 | ✓ Closing observed |
| 09-07 08:51 | 40m | -6 / - | HF160ID | -16 / - | 3 | ✓ Closing observed |
| 09-07 08:41 | 40m | -5 / - | R1943OD | - / - | 6 | ✓ Closing fragment |
| 09-07 08:34 | 40m | -3 / - | HF100PKP | - / - | 6 | ✓ Closing fragment |
| 09-07 08:24 | 40m | -1 / - | R1943OD | -17 / - | 11 | ✓ Closing observed |
| 09-07 08:19 | 40m | -4 / - | HF100PKP | - / - | 3 | ✓ Closing fragment |
| 09-07 08:17 | 40m | -4 / - | SP100PKP | - / - | 2 | ✓ Closing fragment |
| 09-07 08:10 | 40m | -7 / - | SN40KZE | +4 / - | 4 | ✓ Closing observed |
| 09-07 08:08 | 40m | -8 / - | SP1373AB | - / - | 2 | ✓ Closing fragment |
| 09-07 08:07 | 40m | -5 / - | SN40KZE | -7 / - | 2 | ✓ Closing observed |
| 09-07 07:51 | 40m | 0 / - | SP1373AB | -17 / - | 10 | ✓ Closing observed |
| 08-29 16:42 | 40m | -4 / - | <...> | - / - | 4 | ✓ Closing fragment |
| 08-29 16:28 | 40m | -8 / - | <...> | -1 / - | 4 | ✓ Closing fragment |
| 08-29 16:21 | 40m | -3 / - | <...> | -2 / - | 7 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 164800 -2 1297 R1QF/P HF780C RR73 165100 -6 1300 SP100PKP HF780C RR73 165115 -18 1299 HF780C R1QF/P 73 165130 -2 1300 CQ HF780C 165230 -5 1300 SP100PKP HF780C RR73 165245 -5 1300 HF780C SP100PKP 73 165300 -9 1300 CQ HF780C 165430 -3 1300 SP100PKP HF780C RR73 165445 -5 1308 HF780C YU65AEC 73 165530 -3 1300 CQ HF780C 165630 -3 1300 SP100PKP HF780C RR73 165645 +8 2468 HF780C II9IAGM 73 165730 -7 1300 CQ HF780C 193430 +5 1909 HF780C VP5/K5UR 73 193430 -12 2419 <HF780C> 2E0UMK IO92
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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