R3MDA — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving R3MDA, decoded by SO8OO in southeastern Poland. 1,131 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 36 UTC dates in the available aggregate history. Observed between 2026-08-09 and 2026-10-07.
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 1,131 FT8 messages attributed to R3MDA as the transmitting token by decoded message structure across 36 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (54%), followed by 80 m (43%) and 20 m (3%). Most decodes (89%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (60%); the estimated median was -7 dB.
Overview
Bands
Last attributed message: 2026-10-07 18:28 UTC
Observed FT8 message patterns
- Attributed sample
- 1,131 messages
- Active dates
- 36 UTC dates
- Estimated median S/N
- -7 dB
- Estimated 10th-90th percentile
- -15 to -0.8 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 95, moderate (-15 to -9 dB) 353, strong (≥ -8 dB) 683.
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 R3MDA 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 R3MDA
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
- KO97 · 660 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,404 km (approx.)
- Last such locator decoded
- 2026-10-07 18:28 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 | R3MDA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-07 18:05 | 40m | -3 / - | UN7PHV | - / -19 | 2 | ✓ Closing fragment |
| 10-07 18:02 | 40m | -7 / 0 | R7KEO | -5 / - | 4 | ✓ Closing observed |
| 10-07 04:43 | 40m | - / - | EB2EMZ | -20 / - | 2 | Partial capture |
| 10-07 04:43 | 40m | - / - | RN6HGI | -12 / - | 2 | Partial capture |
| 10-07 04:30 | 40m | - / - | US3EW | -12 / - | 3 | ✓ Closing fragment |
| 10-07 04:26 | 40m | - / 0 | RU7C | -18 / - | 2 | ✓ Closing fragment |
| 10-06 04:17 | 40m | - / -6 | RU4I | -14 / - | 2 | ✓ Closing fragment |
| 10-06 04:13 | 40m | -2 / 0 | RC6D | -20 / -4 | 4 | Partial capture |
| 10-05 05:24 | 40m | -6 / - | IQ0AAX | - / -9 | 3 | ✓ Closing fragment |
| 10-05 05:22 | 40m | -13 / - | RN2F | - / - | 2 | ✓ Closing fragment |
| 10-05 05:04 | 40m | -18 / - | UA9FKM | - / -6 | 2 | ✓ Closing fragment |
| 10-05 05:01 | 40m | - / -8 | IW0RLC | -6 / - | 7 | ✓ Closing fragment |
| 10-05 05:01 | 40m | - / -4 | UA3WG | -11 / - | 3 | ✓ Closing fragment |
| 10-05 04:58 | 40m | -16 / - | R80SAA | - / - | 2 | Partial capture |
| 10-05 04:55 | 40m | -9 / -7 | LZ2II | +1 / +1 | 4 | ✓ Full exchange observed |
| 10-05 04:53 | 40m | -13 / - | TA2VUZ | - / -10 | 3 | ✓ Closing fragment |
| 10-05 04:49 | 40m | -11 / - | R6AR | -5 / -2 | 5 | ✓ Closing observed |
| 10-05 04:46 | 40m | -10 / - | SP7SZJ | - / +3 | 2 | Partial capture |
| 10-05 04:41 | 40m | -11 / - | RQ6B | - / +5 | 5 | ✓ Closing fragment |
| 10-04 14:02 | 10m | - / -8 | EA5FD | -11 / - | 3 | ✓ Closing fragment |
| 10-04 04:49 | 40m | -12 / -6 | RK6MC | -8 / +9 | 6 | ✓ Full exchange observed |
| 10-04 04:48 | 40m | -10 / - | UB4HPQ | - / -6 | 3 | ✓ Closing fragment |
| 10-04 04:47 | 40m | - / - | RM5F | -12 / - | 4 | Partial capture |
| 10-04 04:46 | 40m | -7 / -15 | UA3YPS | -12 / +2 | 5 | ✓ Full exchange observed |
| 10-04 04:41 | 40m | -9 / - | UA9QFF | - / -5 | 3 | Partial capture |
| 10-04 04:34 | 40m | - / - | RA3VX | -10 / - | 2 | Partial capture |
| 10-04 04:31 | 40m | -14 / - | ON7KEI | - / -16 | 2 | ✓ Closing fragment |
| 10-04 04:30 | 40m | -18 / - | RL3ZA | - / - | 2 | ✓ Closing fragment |
| 10-04 04:29 | 40m | - / - | RM5F | -6 / - | 4 | Partial capture |
| 10-04 04:27 | 40m | -16 / - | RQ7R | - / -3 | 4 | ✓ Closing fragment |
| 10-04 04:23 | 40m | - / - | RM5F | -4 / - | 5 | Partial capture |
| 10-02 05:16 | 40m | -13 / -1 | RZ6L | -2 / - | 3 | ✓ Full exchange observed |
| 10-02 05:13 | 40m | -14 / +9 | RZ4FWA | -24 / +7 | 3 | ✓ Full exchange observed |
| 10-02 05:07 | 40m | - / - | RD3FY | -8 / - | 4 | Partial capture |
| 10-02 05:07 | 40m | -20 / +3 | YO9HP | +15 / 0 | 4 | ✓ Full exchange observed |
| 10-02 05:05 | 40m | - / -1 | RW3SB | -19 / - | 3 | ✓ Closing fragment |
| 10-01 20:59 | 80m | - / -9 | UB3DRL | -7 / - | 4 | ✓ Closing fragment |
| 10-01 20:56 | 80m | -18 / -9 | R6OD | 0 / -6 | 5 | ✓ Full exchange observed |
| 10-01 20:52 | 80m | -12 / - | EI2KM | - / - | 8 | Partial capture |
| 10-01 20:40 | 80m | -8 / -11 | UA3IAP | -3 / 0 | 4 | ✓ Full exchange observed |
| 10-01 20:32 | 40m | -15 / - | JJ2IJU | - / -5 | 4 | ✓ Closing fragment |
| 10-01 20:30 | 40m | - / - | HB9ZHK | -14 / - | 2 | Partial capture |
| 09-30 21:08 | 40m | -10 / - | ON6DL | -6 / -15 | 6 | ✓ Full exchange observed |
| 09-30 21:08 | 40m | - / - | HB9ZHK | -20 / - | 2 | Partial capture |
| 09-30 21:05 | 40m | -10 / - | OK2BRV | - / -16 | 4 | Partial capture |
| 09-30 21:02 | 40m | -13 / +7 | 4X5JK | -6 / -3 | 3 | ✓ Full exchange observed |
| 09-30 21:00 | 40m | -12 / - | M9OOS | - / - | 3 | Partial capture |
| 09-30 20:58 | 40m | -12 / +9 | G5NGL | +1 / - | 2 | Partial capture |
| 09-30 20:52 | 80m | -7 / - | RN2F | - / - | 6 | Partial capture |
| 09-30 20:49 | 80m | -7 / -9 | UN0GY | -15 / -14 | 4 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 180315 -7 2721 R7KEO R3MDA RR73 180330 -7 2720 R3MDA R7KEO 73 180415 -6 2721 CQ R3MDA KO97 (x2) 180515 -2 2721 UN7PHV R3MDA -19 (x2) 180645 -4 2721 CQ R3MDA KO97 (x3) 181100 -2 2720 R3MDA R6FGF 73 181915 +1 2765 CQ R3MDA KO97 (x5)
UTC dB Audio Message 203845 -6 2746 R3MDA R6OD 73 204145 -8 2228 R3MDA R6KA KN75 204145 -13 2361 R3MDA DL3NGN JN59 204215 -11 2228 R3MDA R6KA R+19 204215 -17 2362 R3MDA DL3NGN JN59 204245 -10 2228 R3MDA R6KA 73 075100 -11 643 R3MDA R7RAG RR73 090330 -1 2243 R3MDA RN6MA -03 (x2) 113845 -13 2590 R3MDA R6FX LN14 100345 -6 2019 R3MDA M0BEW -16 (x2) 140200 -8 1804 R3MDA EA5FD IM99 (x3)
UTC dB Audio Message 205415 -12 2390 EI2KM R3MDA KO97 (x4) 205600 +0 2565 R3MDA R6OD KN87 (x2) 205645 -18 2391 R6OD R3MDA -06 205700 -13 253 R3MDA UB3DRL KO84 205700 +0 2565 R3MDA R6OD R-09 (x2) 205815 -17 2390 EI2KM R3MDA KO97 205930 -8 2390 R3MDA UB3DRL KO84 (x4)
UTC dB Audio Message 201815 -1 2613 R3MDA SP9SOS KN09 (x2)
UTC dB Audio Message 035915 -9 1658 R3MDA RV6F LN14 035915 -9 1742 R3MDA RU6UR RR73 035945 -11 1658 R3MDA RV6F LN14 (x2) 060000 -4 2556 CQ R3MDA KO97 060015 -5 1692 R3MDA RX3ASQ KO95 060030 -3 2556 RX3ASQ R3MDA -17 060045 +6 1692 R3MDA RX3ASQ R-19 060100 +2 2556 RX3ASQ R3MDA RR73 060115 +4 1692 R3MDA RX3ASQ 73 060200 -1 2556 CQ R3MDA KO97 (x3) 060330 +1 2556 SP5SE R3MDA -03 (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.
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