R4MA — 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 R4MA, decoded by SO8OO in southeastern Poland. 869 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 29 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-10-23.
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 869 FT8 messages attributed to R4MA as the transmitting token by decoded message structure across 29 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (57%), followed by 20 m (35%) and 80 m (8%). Most decodes (69%) fell within the six-hour window 14:00-20:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (65%); the estimated median was -5 dB.
Overview
Bands
Last attributed message: 2026-10-23 17:07 UTC
Observed FT8 message patterns
- Attributed sample
- 869 messages
- Active dates
- 29 UTC dates
- Estimated median S/N
- -5 dB
- Estimated 10th-90th percentile
- -18 to +4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 162, moderate (-15 to -9 dB) 140, strong (≥ -8 dB) 567.
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 R4MA 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 R4MA
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
- LO33 · 355 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,771 km (approx.)
- Last such locator decoded
- 2026-10-23 17:07 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 | R4MA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-23 17:00 | 40m | -1 / 0 | RX9CN | -11 / -1 | 6 | ✓ Full exchange observed |
| 10-23 16:58 | 40m | -3 / - | M5RJC | -1 / -2 | 5 | ✓ Full exchange observed |
| 10-23 16:48 | 40m | 0 / - | RX9CN | - / -6 | 2 | Partial capture |
| 10-23 16:42 | 40m | -4 / +10 | RC6OT | -5 / - | 3 | ✓ Closing observed |
| 10-23 16:41 | 40m | +1 / - | EV1R | -5 / -10 | 2 | ✓ Closing observed |
| 10-23 16:37 | 40m | +1 / - | RV4LD | 0 / -17 | 5 | ✓ Closing observed |
| 10-23 16:36 | 40m | +2 / - | RU3QR | -8 / -16 | 4 | ✓ Closing observed |
| 10-23 16:35 | 40m | +2 / - | RM4N | - / -15 | 2 | ✓ Closing fragment |
| 10-23 16:33 | 40m | +1 / - | RX9CN | - / -7 | 2 | Partial capture |
| 10-23 16:32 | 40m | +2 / - | RA9UES | - / -9 | 2 | ✓ Closing fragment |
| 10-23 16:31 | 40m | - / - | UA3QFY | -16 / - | 3 | Partial capture |
| 10-23 16:27 | 40m | +2 / - | UD6AVY | - / -11 | 2 | ✓ Closing fragment |
| 10-23 16:26 | 40m | +3 / - | EU6UE | - / +3 | 2 | ✓ Closing fragment |
| 10-23 16:25 | 40m | +6 / - | UC6W | - / -13 | 2 | ✓ Closing fragment |
| 10-23 16:24 | 40m | +4 / +2 | UA6LIK | -19 / -20 | 4 | ✓ Full exchange observed |
| 10-23 16:21 | 40m | +2 / - | SP5CJQ | - / -5 | 2 | ✓ Closing fragment |
| 10-23 16:18 | 40m | -6 / +5 | RJ3DC | -18 / -5 | 4 | ✓ Full exchange observed |
| 10-23 16:16 | 40m | -6 / - | RV9WJP | - / -11 | 2 | ✓ Closing fragment |
| 10-23 16:15 | 40m | -7 / - | RT8T | - / +1 | 2 | ✓ Closing fragment |
| 10-23 15:21 | 40m | - / - | RA3LBW | +6 / - | 2 | Partial capture |
| 10-23 15:17 | 40m | - / -23 | OK1AY | +5 / - | 3 | Partial capture |
| 10-22 17:30 | 40m | - / -1 | GJ0KYZ | +4 / - | 3 | ✓ Closing fragment |
| 10-22 17:28 | 40m | +2 / 0 | ON4ASV | +18 / -1 | 5 | ✓ Full exchange observed |
| 10-22 17:22 | 40m | +2 / - | R6KY | +4 / -7 | 3 | ✓ Closing observed |
| 10-22 17:19 | 40m | -2 / - | EU1EU | - / -14 | 2 | ✓ Closing fragment |
| 10-22 17:18 | 40m | +5 / +7 | IZ2SXZ | -17 / -14 | 6 | Partial capture |
| 10-22 17:17 | 40m | +1 / - | BA8BLK | - / -22 | 3 | ✓ Closing fragment |
| 10-22 17:11 | 40m | -1 / - | PH7GD | -9 / -16 | 4 | ✓ Closing observed |
| 10-22 16:58 | 40m | 0 / - | RX6ATU | - / -3 | 2 | ✓ Closing fragment |
| 10-22 16:55 | 40m | +5 / -7 | UA6AMF | +1 / -1 | 3 | ✓ Full exchange observed |
| 10-22 16:54 | 40m | +2 / -4 | DL9YBH | -1 / -8 | 3 | ✓ Full exchange observed |
| 10-22 16:52 | 40m | +8 / +1 | M9NTS | -8 / -16 | 4 | ✓ Full exchange observed |
| 10-19 03:59 | 40m | - / +5 | F5SJC | -16 / - | 3 | ✓ Closing fragment |
| 10-19 03:57 | 40m | - / +4 | SV2AOB | -3 / - | 3 | ✓ Closing fragment |
| 10-19 03:56 | 40m | - / -2 | SV1ENG | -8 / - | 2 | ✓ Closing fragment |
| 10-17 15:45 | 40m | -18 / - | R8ACF | - / -9 | 2 | ✓ Closing fragment |
| 10-17 15:42 | 40m | -14 / - | PA7D | - / -11 | 2 | ✓ Closing fragment |
| 10-17 15:33 | 40m | -10 / - | UD1I | - / -6 | 2 | ✓ Closing fragment |
| 10-17 15:31 | 40m | -15 / -11 | R1BRZ | -19 / - | 5 | ✓ Closing observed |
| 10-17 15:28 | 40m | - / -16 | YT1T | -16 / - | 2 | Partial capture |
| 10-16 16:10 | 80m | - / 0 | DA6NEL | +12 / - | 4 | ✓ Closing fragment |
| 10-16 16:08 | 80m | -4 / - | R8QA | - / -6 | 2 | ✓ Closing fragment |
| 10-16 16:07 | 80m | - / -20 | DL5MO | -3 / - | 3 | Partial capture |
| 10-16 16:07 | 80m | 0 / -11 | RA3VX | -3 / - | 6 | ✓ Closing observed |
| 10-16 16:06 | 80m | -3 / +1 | RQ6B | -15 / -9 | 3 | ✓ Full exchange observed |
| 10-16 16:05 | 80m | -4 / - | DO8TZ | +4 / -17 | 3 | ✓ Closing observed |
| 10-16 16:04 | 80m | -4 / - | R4SCQ | - / -3 | 2 | ✓ Closing fragment |
| 10-16 15:53 | 40m | 0 / -9 | RN3TT | -2 / -19 | 3 | Partial capture |
| 10-16 15:51 | 40m | +2 / - | JK7UHC | - / -19 | 2 | ✓ Closing fragment |
| 10-16 15:50 | 40m | +1 / - | RW3YS | - / -15 | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 165830 -1 480 M5RJC R4MA -02 165845 -1 480 R4MA M5RJC R+15 165900 -5 480 M5RJC R4MA RR73 165915 +2 480 R4MA M5RJC 73 165930 +2 480 CQ R4MA LO33 (x2) 170015 -13 965 R4MA RX9CN LO02 170030 -2 480 RX9CN R4MA -01 170045 -15 965 R4MA RX9CN LO02 170100 +0 480 RX9CN R4MA -08 170115 -9 965 R4MA RX9CN R+00 170115 -18 2245 R4MA RN6FT LN05 170145 -7 965 R4MA RX9CN 73 170700 -3 480 CQ R4MA LO33 (x2)
UTC dB Audio Message 160800 -6 2313 R8QA R4MA R-06 160815 -3 1187 R4MA RA3VX LO06 160815 -1 870 R4MA DL5MO -20 160830 -2 2314 R8QA R4MA 73 160845 -4 1187 R4MA RA3VX LO06 (x2) 160930 +0 2313 RA3VX R4MA RR73 160945 -3 1188 R4MA RA3VX 73 160945 -4 878 R4MA DL5MO -16 161000 -3 2313 CQ R4MA LO33 161015 +9 2313 R4MA DA6NEL JO60 (x4) 161330 -3 2314 CQ R4MA LO33
UTC dB Audio Message 154930 -6 2537 BG7JPT R4MA -17 (x2) 155030 +1 2537 CQ R4MA LO33 (x8) 155900 -5 1317 BA4VDC R4MA -07 (x3) 160300 -6 1318 CQ R4MA LO33 (x2)
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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