SP7NHS — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SP7NHS, decoded by SO8OO in southeastern Poland. 13 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-07-31 and 2026-09-12.
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 13 FT8 messages attributed to SP7NHS as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (62%), followed by 40 m (38%). In this small sample, the estimated median decoder S/N was -21 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-12 04:58 UTC
Observed FT8 message patterns
- Attributed sample
- 13 messages
- Active dates
- 5 UTC dates
- Estimated median S/N
- -21 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) 1, strong (≥ -8 dB) 2.
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 SP7NHS 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 SP7NHS
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
- JO91 · 4 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 262 km (approx.)
- Last such locator decoded
- 2026-09-12 04:57 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 | SP7NHS S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-12 04:57 | 40m | -24 / - | J38DX | - / - | 2 | ✓ Closing fragment |
| 08-22 04:54 | 20m | -22 / -8 | UA4FEN | -7 / -4 | 4 | ✓ Full exchange observed |
| 08-22 04:53 | 20m | -20 / - | XQ1KK | -2 / -14 | 3 | ✓ Closing observed |
| 08-22 04:50 | 20m | -21 / - | W6WWD | - / -17 | 3 | ✓ Closing fragment |
| 08-11 15:46 | 20m | - / +10 | DJ0MAB | -16 / - | 3 | ✓ Closing fragment |
| 08-07 15:53 | 20m | - / - | F4HSB | -23 / - | 3 | Partial capture |
| 07-31 05:01 | 40m | -6 / - | <...> | - / -10 | 2 | Partial capture |
| 07-27 04:56 | 20m | - / - | UR4QWW | -10 / - | 2 | Partial capture |
| 07-22 02:36 | 40m | - / - | UA4FKT | -18 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 023600 -15 1672 SP7NHS UA4FKT LO23 (x2) 050130 -6 1590 <...> SP7NHS JO91 (x2) 172245 -15 1914 LB3FK SP7NHS 73 045730 -24 2290 J38DX SP7NHS JO91 (x2)
UTC dB Audio Message 154415 -16 1835 HZ1YJ SP7NHS JO91 154630 -15 1835 SP7NHS DJ0MAB JN49 (x3) 154930 -14 1835 SP7NHS F5IXN JN23 045030 -19 1591 W6WWD SP7NHS JO91 (x3) 045315 -21 1591 XQ1KK SP7NHS R-14 045330 -2 1075 SP7NHS XQ1KK RR73 045345 -20 1591 XQ1KK SP7NHS 73 045400 -6 1591 SP7NHS UA4FEN -08 045415 -21 1592 UA4FEN SP7NHS R-04 045430 -8 1591 SP7NHS UA4FEN RR73 045445 -22 1591 UA4FEN SP7NHS 73
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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