GM5SNW — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving GM5SNW, decoded by SO8OO in southeastern Poland. 195 FT8 messages attributed to this token as transmitter, on 60m, 40m, across 4 UTC dates in the available aggregate history. Observed between 2026-09-10 and 2026-09-19.
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 195 FT8 messages attributed to GM5SNW as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (70%), followed by 60 m (30%). Most decodes (100%) fell within the six-hour window 20:00-02:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.
Overview
Bands
Last attributed message: 2026-09-19 23:45 UTC
Observed FT8 message patterns
- Attributed sample
- 195 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- -13 dB
- Estimated 10th-90th percentile
- -20 to -7 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 63, moderate (-15 to -9 dB) 102, strong (≥ -8 dB) 30.
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.
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with GM5SNW 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 GM5SNW
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
- IO84 · 57 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,753 km (approx.)
- Last such locator decoded
- 2026-09-19 23:38 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 | GM5SNW S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-19 23:38 | 40m | -10 / - | EW2ZC | - / -18 | 12 | Partial capture |
| 09-19 23:36 | 40m | -13 / - | EX7CQ | -7 / -7 | 2 | ✓ Closing observed |
| 09-19 23:32 | 40m | -16 / - | IU5HIU | -15 / -18 | 2 | Partial capture |
| 09-19 23:31 | 40m | -16 / -22 | RA3RDN | -14 / - | 4 | ✓ Closing observed |
| 09-19 23:01 | 60m | - / - | DD6ZV | +3 / - | 7 | Partial capture |
| 09-19 22:57 | 60m | -6 / -10 | IW1FRD | -6 / - | 5 | ✓ Closing observed |
| 09-19 22:57 | 60m | -11 / -6 | DL5DQZ | +5 / -2 | 10 | ✓ Full exchange observed |
| 09-19 22:56 | 60m | -8 / +6 | DK7ZT | -11 / -3 | 5 | ✓ Full exchange observed |
| 09-19 22:55 | 60m | -8 / -3 | 4L7T | -2 / -15 | 4 | ✓ Full exchange observed |
| 09-19 22:51 | 60m | -13 / -9 | DH0BRO | -4 / -15 | 2 | Partial capture |
| 09-19 22:49 | 60m | -9 / -13 | PE1NPS | +7 / -4 | 5 | ✓ Full exchange observed |
| 09-19 22:47 | 60m | -11 / - | ON7KEI | -10 / - | 2 | ✓ Closing observed |
| 09-19 22:47 | 60m | - / +1 | F1PBZ | -3 / - | 3 | ✓ Closing fragment |
| 09-19 22:46 | 60m | -14 / - | DD6ZV | +6 / -16 | 2 | Partial capture |
| 09-19 22:41 | 60m | -9 / -15 | US2YW | +11 / - | 5 | ✓ Closing observed |
| 09-19 22:41 | 60m | -7 / -2 | DL6RS | -10 / -9 | 5 | ✓ Full exchange observed |
| 09-19 22:40 | 60m | - / 0 | DK3ME | 0 / - | 2 | Partial capture |
| 09-19 22:37 | 60m | -10 / -11 | 4O7CC | -10 / -19 | 7 | ✓ Full exchange observed |
| 09-19 22:33 | 60m | -12 / +9 | MM5DWW | -10 / -9 | 4 | ✓ Full exchange observed |
| 09-19 22:32 | 60m | -11 / -19 | LZ2VQ | +9 / - | 4 | ✓ Closing observed |
| 09-19 22:31 | 60m | -15 / -4 | EA1MX | -17 / -6 | 3 | ✓ Full exchange observed |
| 09-19 01:00 | 40m | -20 / - | EB2EMZ | - / -16 | 2 | ✓ Closing fragment |
| 09-19 00:57 | 40m | - / -22 | PT7YV | +4 / - | 4 | ✓ Closing fragment |
| 09-19 00:30 | 40m | -15 / - | UN7JO | - / -19 | 9 | Partial capture |
| 09-19 00:29 | 40m | - / - | TA2EE | -12 / - | 8 | Partial capture |
| 09-18 23:39 | 40m | -16 / -19 | HZ1TT | -10 / -17 | 6 | ✓ Full exchange observed |
| 09-18 23:33 | 40m | -15 / - | HZ1TT | - / -15 | 2 | Partial capture |
| 09-18 23:24 | 40m | -14 / - | R3SN | - / -19 | 2 | ✓ Closing fragment |
| 09-18 23:22 | 40m | -6 / - | F5RRS | - / -12 | 2 | ✓ Closing fragment |
| 09-18 23:20 | 40m | -9 / - | UR4QWW | - / - | 3 | ✓ Closing fragment |
| 09-18 23:08 | 40m | -10 / - | TF8KW | - / -21 | 4 | ✓ Closing fragment |
| 09-18 22:48 | 40m | -12 / -14 | RL3T | -4 / -12 | 5 | ✓ Full exchange observed |
| 09-18 22:47 | 40m | -16 / - | SV3AUW | - / -15 | 2 | ✓ Closing fragment |
| 09-18 22:45 | 40m | -17 / - | I2XYI | - / -19 | 2 | ✓ Closing fragment |
| 09-18 22:42 | 40m | -10 / - | HF7X | - / -13 | 2 | ✓ Closing fragment |
| 09-18 22:33 | 40m | - / -7 | F6FDY | -1 / - | 3 | ✓ Closing fragment |
| 09-13 23:04 | 60m | -22 / - | OH3GBW | -8 / -16 | 4 | ✓ Closing observed |
| 09-13 23:01 | 60m | -14 / +3 | OH1LA | -16 / -13 | 4 | ✓ Full exchange observed |
| 09-13 23:00 | 40m | - / - | TA4SSK | -10 / - | 6 | Partial capture |
| 09-13 22:35 | 40m | -15 / -16 | SV9QWC | -1 / -14 | 7 | ✓ Full exchange observed |
| 09-13 22:25 | 40m | -15 / - | 9A4ZM | - / -3 | 2 | ✓ Closing fragment |
| 09-13 22:17 | 40m | -15 / - | SP7TF | - / -20 | 3 | Partial capture |
| 09-13 21:40 | 60m | -18 / - | LY7Z | - / -16 | 2 | Partial capture |
| 09-13 21:38 | 60m | -20 / -10 | DG6VC | -3 / - | 4 | ✓ Closing observed |
| 09-13 21:30 | 60m | -22 / - | LY8O | -23 / -7 | 3 | ✓ Closing observed |
| 09-13 21:29 | 60m | -20 / -3 | F5MXH | -17 / - | 9 | ✓ Closing observed |
| 09-13 21:29 | 60m | -18 / - | 9A4ZM | - / -9 | 2 | ✓ Closing fragment |
| 09-13 21:28 | 60m | - / - | DG6VC | -9 / - | 4 | Partial capture |
| 09-13 21:28 | 60m | - / -1 | DK7ZT | -12 / - | 3 | Partial capture |
| 09-13 21:28 | 60m | -23 / -20 | G0AZH | -9 / -12 | 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 233315 -16 2514 IU5HIU GM5SNW -18 233645 -13 2514 EX7CQ GM5SNW R-07 233700 -7 1716 GM5SNW EX7CQ RR73 233815 -17 2514 EW2ZC GM5SNW IO84 (x12)
UTC dB Audio Message 225915 -3 1200 GM5SNW IW1FRD 73 225915 +6 809 GM5SNW DL5DQZ JO61 225930 -11 680 DL5DQZ GM5SNW -02 225945 +5 809 GM5SNW DL5DQZ R-06 230000 -11 680 DL5DQZ GM5SNW RR73 230015 -2 809 GM5SNW DL5DQZ 73 (x2) 230100 -7 681 CQ GM5SNW IO84 230115 +7 680 GM5SNW DD6ZV JO62 (x7)
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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