DM5HF — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DM5HF, decoded by SO8OO in southeastern Poland. 72 FT8 messages attributed to this token as transmitter, on 160m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-26 and 2026-09-27.
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 72 FT8 messages attributed to DM5HF as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (100%). In this small sample, the estimated median decoder S/N was +1 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 72 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- +1 dB
- Estimated 10th-90th percentile
- -7 to +11 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 72.
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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with DM5HF in decoded directed-looking exchanges:
Most frequent locator attributed to DM5HF
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
- JO43 · 46 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 964 km (approx.)
- Last such locator decoded
- 2026-09-27 18:14 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 | DM5HF S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-27 18:21 | 160m | -4 / - | F4NPE | - / -18 | 2 | Partial capture |
| 09-27 18:14 | 160m | -7 / +3 | SP3CUG | +6 / -4 | 3 | Partial capture |
| 09-27 18:11 | 160m | -2 / +3 | SQ9PBV | +6 / -18 | 8 | ✓ Full exchange observed |
| 09-27 18:08 | 160m | -6 / -7 | DK9BF | -4 / +3 | 6 | ✓ Full exchange observed |
| 09-27 18:05 | 160m | 0 / -2 | DO1BWO | -11 / -14 | 8 | ✓ Full exchange observed |
| 09-27 18:04 | 160m | -2 / -1 | OK1VKX | +10 / -3 | 5 | ✓ Full exchange observed |
| 09-26 04:32 | 160m | +3 / - | SQ2BXI | - / -15 | 3 | ✓ Closing fragment |
| 09-26 04:26 | 160m | +4 / - | W9JJ | - / - | 3 | Partial capture |
| 09-26 04:22 | 160m | +8 / - | MW7TTA | - / -25 | 2 | ✓ Closing fragment |
| 09-26 04:15 | 160m | +15 / -2 | DL9KM | -16 / -12 | 6 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 181145 -2 2442 SQ9PBV DM5HF -18 181200 +5 2442 DM5HF SQ9PBV R+03 181215 -4 2442 SQ9PBV DM5HF -18 181230 +9 2442 DM5HF SQ9PBV R+03 181245 -2 2442 SQ9PBV DM5HF RR73 181300 +8 2442 DM5HF SQ9PBV 73 181330 +0 2442 SQ9PBV DM5HF 73 181400 -2 2442 CQ DM5HF JO43 181415 +5 1331 DM5HF SP3CUG JO82 181430 -7 1329 SP3CUG DM5HF -04 181445 +6 1331 DM5HF SP3CUG R+03 182100 -8 1330 CQ DM5HF 182130 -7 1329 F4NPE DM5HF -18 (x2) 182245 -5 2086 DM5HF SP2AA JO93
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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