GM3RTG — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving GM3RTG, decoded by SO8OO in southeastern Poland. 406 FT8 messages attributed to this token as transmitter, on 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-08-16.
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 406 FT8 messages attributed to GM3RTG as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Most decodes (90%) fell within the six-hour window 12:00-18:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10.2 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 406 messages
- Active dates
- 6 UTC dates
- Estimated median S/N
- -10.2 dB
- Estimated 10th-90th percentile
- -17 to -2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 60, moderate (-15 to -9 dB) 204, strong (≥ -8 dB) 142.
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 GM3RTG 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 GM3RTG
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
- IO87 · 173 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,821 km (approx.)
- Last such locator decoded
- 2026-08-16 15:09 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 | GM3RTG S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-19 10:17 | 40m | - / - | SP2KW | -13 / - | 4 | Partial capture |
| 08-16 15:09 | 20m | -11 / - | HA5AJZ | - / -10 | 18 | Partial capture |
| 08-16 14:37 | 20m | -10 / - | DJ7BU | - / +5 | 9 | Partial capture |
| 08-16 14:20 | 20m | -14 / - | DG8YBJ | - / -9 | 19 | Partial capture |
| 08-16 14:09 | 20m | -16 / - | DG8YBJ | - / -4 | 3 | Partial capture |
| 08-16 13:58 | 20m | -14 / - | DL6RH | - / - | 6 | Partial capture |
| 08-16 13:43 | 20m | - / - | DF5EI | -11 / - | 2 | Partial capture |
| 08-16 13:17 | 20m | -16 / - | PF1B | - / -5 | 2 | Partial capture |
| 08-16 13:09 | 20m | - / -8 | DK3HV | -14 / - | 3 | ✓ Closing fragment |
| 08-16 12:38 | 20m | -8 / - | ON1DGN | - / +7 | 3 | ✓ Closing fragment |
| 08-15 19:58 | 20m | -14 / - | HA3HZ | - / - | 2 | Partial capture |
| 08-15 18:41 | 20m | -13 / - | HA3HZ | - / - | 11 | Partial capture |
| 08-15 17:02 | 20m | -3 / - | OE3UKW | - / - | 2 | ✓ Closing fragment |
| 08-15 16:52 | 20m | -6 / - | UX5KU | - / -24 | 2 | Partial capture |
| 08-15 15:20 | 20m | -16 / - | IZ5MJO | - / -23 | 2 | Partial capture |
| 08-15 14:38 | 20m | -10 / - | N0STL | - / - | 16 | Partial capture |
| 08-15 14:29 | 20m | -10 / - | E70SZ | -4 / -6 | 13 | Partial capture |
| 08-15 13:34 | 20m | -10 / - | SP9SOS | - / -9 | 10 | ✓ Closing fragment |
| 08-15 13:33 | 20m | - / -20 | RG2V | -6 / - | 3 | Partial capture |
| 08-15 13:27 | 20m | -10 / - | IU2VUZ | - / -25 | 5 | Partial capture |
| 08-15 13:20 | 20m | -15 / - | TA2EE | - / -14 | 10 | Partial capture |
| 08-15 13:02 | 20m | -12 / - | DJ2IA | - / +7 | 2 | Partial capture |
| 08-15 12:52 | 20m | -16 / - | IU2UHB | - / - | 2 | Partial capture |
| 08-15 12:46 | 20m | -13 / - | DC8OAL | - / 0 | 4 | Partial capture |
| 08-15 12:37 | 20m | -11 / - | K0BLT | - / -17 | 6 | Partial capture |
| 08-15 12:28 | 20m | -15 / - | IK4UPG | -18 / -19 | 4 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 101715 -11 2037 GM3RTG SP2KW JO92 (x4)
UTC dB Audio Message 151100 -10 2077 HA5AJZ GM3RTG RRR (x15)
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.
CW
No CW receptions recorded for this callsign in the last 30 days.
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