SV4MYO — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SV4MYO, decoded by SO8OO in southeastern Poland. 12 FT8 messages attributed to this token as transmitter, on 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-20 and 2026-09-03.
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 12 FT8 messages attributed to SV4MYO 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 (100%). In this small sample, the estimated median decoder S/N was -16 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 12 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -16 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 5, strong (≥ -8 dB) 0.
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 SV4MYO in decoded directed-looking exchanges:
Most frequent locator attributed to SV4MYO
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
- KM19 · 10 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,164 km (approx.)
- Last such locator decoded
- 2026-09-03 04:33 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 | SV4MYO S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-18 07:08 | 40m | - / -15 | DK7ZT | -6 / - | 3 | Partial capture |
| 09-18 07:08 | 40m | - / -13 | GJ0KYZ | -7 / - | 3 | Partial capture |
| 09-03 04:28 | 40m | -16 / - | IT9ECY | - / - | 9 | Partial capture |
| 08-20 04:08 | 40m | - / - | US3EW | -11 / - | 4 | Partial capture |
| 08-20 04:08 | 40m | -14 / 0 | IK2UCL | -8 / +1 | 5 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 042915 -17 2105 IT9ECY SV4MYO KM19 (x8) 070730 -12 729 SV4MYO IQ0AAI -04 070830 -7 731 SV4MYO GJ0KYZ -13 070830 -8 1907 SV4MYO DK7ZT -15 070900 -7 731 SV4MYO GJ0KYZ -13 070900 -4 1907 SV4MYO DK7ZT -15 070930 -6 730 SV4MYO GJ0KYZ -13 070930 -7 1907 SV4MYO DK7ZT -15
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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