W9MK — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving W9MK, decoded by SO8OO in southeastern Poland. 5 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-08-06.
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 5 FT8 messages attributed to W9MK as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was -11 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 5 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- -11 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 3, 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 W9MK in decoded directed-looking exchanges:
Most frequent locator attributed to W9MK
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
- EN51 · 2 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 7,824 km (approx.)
- Last such locator decoded
- 2026-08-06 03:27 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 | W9MK S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-21 02:59 | 80m | - / - | EA5HM | -4 / - | 2 | Partial capture |
| 09-21 02:59 | 80m | - / - | LZ2VQ | +11 / - | 3 | Partial capture |
| 09-21 02:56 | 80m | - / -9 | TF4M | +1 / - | 4 | ✓ Closing fragment |
| 09-21 02:53 | 80m | - / -20 | F6AOJ | +8 / - | 2 | ✓ Closing fragment |
| 08-20 14:59 | 20m | - / -17 | R0AX | -12 / - | 2 | Partial capture |
| 08-15 00:42 | 20m | - / -16 | 9K2OW | -10 / - | 2 | ✓ Closing fragment |
| 08-15 00:40 | 20m | - / -14 | IK4TVP | -15 / - | 5 | Partial capture |
| 08-06 03:27 | 20m | -10 / -14 | TA3JOH | -15 / - | 5 | ✓ Closing observed |
| 08-06 03:15 | 20m | - / - | UA6UEU | -2 / - | 2 | Partial capture |
| 07-15 12:06 | 20m | - / -12 | DB5FW | -6 / - | 5 | ✓ Closing fragment |
| 07-15 12:02 | 20m | - / -4 | GJ0KYZ | -20 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 015945 -14 1383 W9MK HK3X RR73 025315 +6 947 W9MK F6AOJ -20 (x2) 025615 +2 2513 W9MK TF4M -09 (x4) 025915 +18 2206 W9MK LZ2VQ KN23 025915 -2 1913 W9MK EA5HM IM99 025945 +6 2206 W9MK LZ2VQ KN23 (x2) 030045 -6 1913 W9MK EA5HM IM99
UTC dB Audio Message 032700 -8 2486 TA3JOH W9MK EN51 (x2) 032745 -14 2185 W9MK TA3JOH -14 (x2) 032830 -10 2486 TA3JOH W9MK 73 004030 -17 1851 W9MK IK4TVP -14 (x5) 004230 -11 2464 W9MK 9K2OW -16 (x2) 143300 -13 484 W9MK XU7O -16 145945 -13 2182 W9MK R0AX -17 (x2)
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