W2GCM — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving W2GCM, decoded by SO8OO in southeastern Poland. 5 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-06-23 and 2026-09-16.
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 W2GCM as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (60%), followed by 40 m (20%) and 20 m (20%). In this small sample, the estimated median decoder S/N was -15 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-16 03:35 UTC
Observed FT8 message patterns
- Attributed sample
- 5 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -15 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 3, 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 W2GCM in decoded directed-looking exchanges:
Most frequent locator attributed to W2GCM
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
- FN20 · 2 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 7,111 km (approx.)
- Last such locator decoded
- 2026-09-16 00:50 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 | W2GCM S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-16 03:32 | 80m | -15 / - | IT9JWH | -6 / -10 | 3 | Partial capture |
| 09-16 03:31 | 80m | - / -10 | HB9ALO | -10 / - | 4 | ✓ Closing fragment |
| 09-16 03:28 | 80m | -14 / - | DO1ID | +6 / - | 2 | ✓ Closing observed |
| 09-16 03:26 | 80m | - / -17 | YO8RAW | +9 / - | 9 | ✓ Closing fragment |
| 09-16 03:23 | 80m | - / -11 | DO1ID | +2 / - | 2 | Partial capture |
| 09-16 03:19 | 80m | - / -15 | OK1ZCF | -11 / - | 3 | Partial capture |
| 09-16 03:18 | 80m | - / - | DO1DX | -4 / - | 4 | Partial capture |
| 09-16 03:18 | 80m | - / - | OK2SFP | +5 / - | 8 | Partial capture |
| 09-16 03:13 | 80m | - / -11 | DO1ID | +6 / - | 2 | Partial capture |
| 09-16 03:12 | 80m | - / -8 | OK1FRG | +8 / - | 7 | ✓ Closing fragment |
| 09-16 03:11 | 80m | - / -18 | PA4PA | +6 / - | 2 | ✓ Closing fragment |
| 07-27 00:02 | 20m | - / -8 | A71UN | -13 / - | 5 | Partial capture |
| 06-23 23:43 | 20m | - / -2 | GM4HYG | -9 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 032800 +11 1025 W2GCM YO8RAW -17 032800 +6 382 W2GCM DO1ID RR73 032815 -14 553 DO1ID W2GCM 73 032830 +12 1025 W2GCM YO8RAW -17 (x3) 033000 +10 1927 W2GCM YO9IAB KN25 033030 +14 811 W2GCM YO8RAW RR73 033100 -4 751 W2GCM HB9ALO JN45 (x3) 033230 -9 655 W2GCM IT9JWH JM76 033230 -13 751 W2GCM HB9ALO 73 033330 -3 656 W2GCM IT9JWH JM76 033515 -15 553 IT9JWH W2GCM -10
UTC dB Audio Message 005045 -24 1639 JJ3DKQ/P W2GCM FN20 005500 -14 2057 W2GCM MI7XHT IO64
UTC dB Audio Message 233945 -20 1773 K4CAE W2GCM FN20 234330 -9 251 W2GCM GM4HYG -02 (x3) 000230 -12 1545 W2GCM A71UN -08 (x5)
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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