DL3JH — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DL3JH, decoded by SO8OO in southeastern Poland. 15 FT8 messages attributed to this token as transmitter, on 40m, 10m, across 2 UTC dates in the available aggregate history. Observed between 2026-07-25 and 2026-09-09.
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 15 FT8 messages attributed to DL3JH as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (93%), followed by 10 m (7%). In this small sample, the estimated median decoder S/N was -18 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-09 15:53 UTC
Observed FT8 message patterns
- Attributed sample
- 15 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -18 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 1.
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 DL3JH in decoded directed-looking exchanges:
Most frequent locator attributed to DL3JH
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
- JO30 · 11 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,053 km (approx.)
- Last such locator decoded
- 2026-09-09 15:53 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 | DL3JH S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-13 12:59 | 40m | - / -9 | SQ6EMJ | -12 / - | 3 | ✓ Closing fragment |
| 09-13 12:53 | 40m | - / -15 | UX7QV | +5 / - | 3 | ✓ Closing fragment |
| 09-09 15:47 | 40m | -13 / -21 | HF5A | -3 / -2 | 7 | ✓ Full exchange observed |
| 09-09 15:47 | 40m | - / +1 | DK7ZT | -3 / - | 2 | Partial capture |
| 09-09 15:46 | 40m | - / - | DF3IS | -2 / - | 3 | Partial capture |
| 09-09 15:45 | 40m | - / - | F5RRS | -9 / - | 4 | Partial capture |
| 09-09 15:02 | 40m | - / - | DL9KM | -9 / - | 7 | Partial capture |
| 09-09 15:02 | 40m | -20 / -14 | DJ0MAB | -9 / -8 | 6 | ✓ Full exchange observed |
| 09-09 15:01 | 40m | - / - | DA1ST | -5 / - | 3 | Partial capture |
| 09-09 14:59 | 40m | - / - | F5RRS | -13 / - | 2 | Partial capture |
| 09-09 14:59 | 40m | - / 0 | DK7ZT | -11 / - | 4 | Partial capture |
| 09-09 14:59 | 40m | - / - | DL2ZJA | -11 / - | 5 | Partial capture |
| 07-25 09:49 | 10m | - / -10 | YO4NF | -3 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 154800 -19 1538 DL3JH IN3OWY JN56 154800 -3 405 DL3JH HF5A JO92 154815 -13 1539 HF5A DL3JH -02 154830 -3 405 DL3JH HF5A R-21 (x4) 155315 -15 1539 CQ DL3JH JO30 125300 +7 1120 DL3JH UX7QV KN29 (x3) 125900 -11 1404 DL3JH SQ6EMJ JO80 (x2) 125930 -14 1119 DL3JH DL6CMF JO52 130000 -9 1404 DL3JH SQ6EMJ 73
UTC dB Audio Message 094700 -10 727 HG8LXL DL3JH RR73 094915 -4 727 DL3JH YO4NF -10 (x2)
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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