RG4C — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving RG4C, decoded by SO8OO in southeastern Poland. 10 FT8 messages attributed to this token as transmitter, on 160m, 80m, across 1 UTC dates in the available aggregate history. Last observed 2026-09-04.
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 10 FT8 messages attributed to RG4C as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (60%), followed by 160 m (40%). In this small sample, the estimated median decoder S/N was -13 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-04 20:57 UTC
Observed FT8 message patterns
- Attributed sample
- 10 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- -13 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) 5, strong (≥ -8 dB) 3.
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 RG4C in decoded directed-looking exchanges:
Most frequent locator attributed to RG4C
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
- LO21 · 9 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,636 km (approx.)
- Last such locator decoded
- 2026-09-04 20:57 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 | RG4C S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-04 21:03 | 80m | - / -26 | RM5F | +5 / - | 2 | Partial capture |
| 09-04 21:03 | 80m | - / -14 | R2EA | -2 / - | 2 | Partial capture |
| 09-04 21:03 | 80m | - / - | R6FX | -6 / - | 4 | Partial capture |
| 09-04 20:51 | 80m | - / -7 | R4FS | -9 / - | 3 | Partial capture |
| 09-04 20:51 | 80m | -12 / - | RI1FJL | - / - | 5 | Partial capture |
| 09-04 20:43 | 160m | - / -5 | R2EA | -8 / - | 2 | Partial capture |
| 09-04 20:37 | 160m | -15 / - | RI1FJL | - / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 205200 -10 1152 RI1FJL RG4C LO21 205215 -10 991 RG4C R4FS -07 205230 -10 1152 RI1FJL RG4C LO21 205245 -10 991 RG4C R4FS -07 205300 -7 1152 RI1FJL RG4C LO21 (x2) 210245 -9 329 RG4C RR73; CT2GHB <RI1FJL> -14 210315 -3 1151 RG4C R6FX LN14 210315 -1 2496 RG4C R2EA -14 210345 +5 893 RG4C RM5F R-26 210345 -7 1152 RG4C R6FX LN14 210345 -2 2496 RG4C R2EA -14 210415 +5 893 RG4C RM5F R-26 210415 -6 1151 RG4C R6FX LN14 (x2)
UTC dB Audio Message 202815 -5 1355 RI1FJL RG4C LO21 (x4) 204300 -9 2429 RG4C R2EA -05 (x2)
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