M5RJR — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving M5RJR, decoded by SO8OO in southeastern Poland. 737 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 17 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-03.
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 737 FT8 messages attributed to M5RJR as the transmitting token by decoded message structure across 17 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (34%), followed by 160 m (22%) and 40 m (19%). Most decodes (74%) fell within the six-hour window 00:00-06:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (61%); the estimated median was -7 dB.
Overview
Bands
Last attributed message: 2026-09-03 03:58 UTC
Observed FT8 message patterns
- Attributed sample
- 737 messages
- Active dates
- 17 UTC dates
- Estimated median S/N
- -7 dB
- Estimated 10th-90th percentile
- -14 to +2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 45, moderate (-15 to -9 dB) 245, strong (≥ -8 dB) 447.
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 M5RJR 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 M5RJR
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
- IO91 · 210 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,607 km (approx.)
- Last such locator decoded
- 2026-08-02 10:34 UTC
Other locator fields attributed to this token: IO92 (117).
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 | M5RJR S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-03 03:56 | 60m | -2 / -14 | EA5JHD | -11 / - | 5 | ✓ Full exchange observed |
| 09-03 03:56 | 60m | +2 / -19 | F5RAV | -15 / -7 | 5 | ✓ Full exchange observed |
| 09-03 03:51 | 60m | 0 / - | HF5A | - / - | 3 | ✓ Closing fragment |
| 09-03 03:50 | 60m | -4 / 0 | SP9UPH | -19 / +4 | 3 | ✓ Full exchange observed |
| 09-03 03:50 | 60m | - / - | DL1UDO | -3 / - | 4 | Partial capture |
| 09-03 03:49 | 60m | -6 / - | US2YW | +1 / +5 | 3 | ✓ Closing observed |
| 09-03 03:48 | 60m | -4 / - | DD6ZV | - / +9 | 2 | ✓ Closing fragment |
| 09-03 03:47 | 60m | - / - | F1IQH | -14 / - | 2 | Partial capture |
| 09-03 03:46 | 60m | -11 / - | N8OQ | - / -4 | 2 | ✓ Closing fragment |
| 09-03 03:45 | 60m | -13 / -16 | IW8PQ | -20 / -15 | 5 | ✓ Full exchange observed |
| 09-03 03:32 | 160m | -1 / -15 | LY3BRA | -2 / +2 | 5 | ✓ Full exchange observed |
| 09-03 03:29 | 160m | -3 / - | G0WZM | - / +5 | 3 | ✓ Closing fragment |
| 09-03 03:25 | 160m | -4 / - | HB9CXZ | +2 / - | 5 | ✓ Full exchange observed |
| 09-02 03:55 | 40m | - / -9 | UR5HIC | -11 / - | 4 | ✓ Closing fragment |
| 09-02 03:54 | 40m | +1 / -5 | K1JAK | -21 / 0 | 3 | Partial capture |
| 09-02 03:51 | 40m | -2 / - | F1PBZ | -3 / -16 | 3 | ✓ Closing observed |
| 09-02 03:46 | 40m | -2 / - | KS1WK | - / -9 | 8 | ✓ Closing fragment |
| 09-02 03:43 | 40m | 0 / - | KY4WI | - / - | 3 | Partial capture |
| 09-02 03:38 | 80m | -10 / - | KY4WI | - / - | 4 | Partial capture |
| 09-02 03:36 | 80m | -11 / - | OT2T | - / - | 4 | Partial capture |
| 09-02 03:09 | 160m | -12 / - | OT2T | - / - | 3 | Partial capture |
| 09-02 03:01 | 160m | -4 / -15 | LY3BRA | 0 / +5 | 5 | ✓ Full exchange observed |
| 09-02 02:58 | 160m | -11 / +5 | 9A2AJ | +11 / - | 4 | ✓ Full exchange observed |
| 09-02 02:58 | 160m | - / -10 | SP5FWT | -17 / - | 3 | Partial capture |
| 09-02 02:55 | 160m | -10 / +2 | IZ1AJJ | -20 / -4 | 4 | ✓ Full exchange observed |
| 09-02 02:53 | 160m | -7 / -8 | DO2TM | -24 / -13 | 4 | ✓ Full exchange observed |
| 09-02 02:52 | 160m | -12 / - | CT2GQA | - / -3 | 2 | ✓ Closing fragment |
| 09-02 02:51 | 160m | -10 / +2 | F1PBZ | -12 / - | 4 | ✓ Full exchange observed |
| 09-02 01:33 | 160m | -10 / - | CT2GQA | - / -7 | 2 | ✓ Closing fragment |
| 09-02 01:24 | 160m | -10 / -20 | RD7O | -12 / -17 | 9 | ✓ Full exchange observed |
| 09-02 01:18 | 160m | -7 / - | CT2GQA | -19 / -11 | 10 | ✓ Closing observed |
| 09-02 01:13 | 80m | -2 / -1 | DL8TV | +4 / - | 5 | ✓ Full exchange observed |
| 09-02 01:05 | 80m | -9 / - | ZS6WAB | - / - | 9 | Partial capture |
| 09-02 01:02 | 80m | -2 / - | RI1FJL | - / - | 2 | Partial capture |
| 09-02 01:01 | 80m | -4 / - | LU1FP | - / - | 2 | Partial capture |
| 09-02 01:00 | 80m | - / -9 | RN3AOE | +4 / - | 2 | Partial capture |
| 09-02 00:56 | 160m | +4 / -2 | F5RRS | -14 / +4 | 5 | ✓ Full exchange observed |
| 09-02 00:54 | 160m | +2 / -6 | UA6HJT | -5 / -4 | 5 | ✓ Full exchange observed |
| 09-02 00:53 | 160m | -4 / - | G3WGC | - / - | 2 | ✓ Closing fragment |
| 09-02 00:52 | 160m | -9 / +10 | F4GTB | +5 / - | 5 | ✓ Full exchange observed |
| 09-02 00:50 | 160m | +1 / - | OH3GBW | - / -11 | 2 | ✓ Closing fragment |
| 09-02 00:48 | 160m | +2 / -23 | UA4FKT | -6 / -10 | 7 | ✓ Full exchange observed |
| 09-02 00:48 | 160m | - / - | UA6HJT | +2 / - | 4 | Partial capture |
| 09-02 00:46 | 160m | -2 / +8 | LZ2IP | +14 / +10 | 5 | ✓ Full exchange observed |
| 08-22 13:20 | 20m | - / - | F1PPH | -12 / - | 10 | Partial capture |
| 08-22 13:13 | 20m | - / -3 | DG1ASD | -8 / - | 2 | Partial capture |
| 08-22 13:13 | 20m | -12 / - | DL9KM | - / -7 | 2 | ✓ Closing fragment |
| 08-12 01:19 | 80m | - / - | IK4LZH | +10 / - | 3 | Partial capture |
| 08-12 01:15 | 80m | - / - | IK4LZH | +8 / - | 3 | Partial capture |
| 08-12 01:11 | 80m | - / - | IK4LZH | +4 / - | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 035145 -7 1489 M5RJR DL1UDO JO31 035200 -2 1140 HF5A M5RJR +15 (x2) 035530 -4 1140 CQ M5RJR IO92 (x2) 035615 -14 1831 M5RJR F5RAV JN09 035630 +3 1140 F5RAV M5RJR -07 035645 -16 1831 M5RJR F5RAV R-19 035645 -9 1140 M5RJR EA5JHD -14 035700 +2 1140 F5RAV M5RJR RR73 035715 -14 1831 M5RJR F5RAV 73 035715 -12 1140 M5RJR EA5JHD -14 035730 -4 1140 EA5JHD M5RJR R+12 035745 -11 1140 M5RJR EA5JHD RR73 035800 -1 1140 EA5JHD M5RJR 73
UTC dB Audio Message 032600 +1 2589 M5RJR HB9CXZ +15 032615 -4 2281 HB9CXZ M5RJR R+23 032630 +4 2589 M5RJR HB9CXZ RR73 032645 -4 2282 HB9CXZ M5RJR 73 032715 -4 2282 CQ M5RJR IO92 (x3) 032900 -6 2282 G0WZM M5RJR IO92 (x3) 033200 +2 2282 LY3BRA M5RJR IO92 033215 +1 1782 M5RJR LY3BRA -15 033230 -2 2282 LY3BRA M5RJR R+02 033245 -4 1783 M5RJR LY3BRA RR73 033300 -3 2282 LY3BRA M5RJR 73
UTC dB Audio Message 035115 +0 2323 CQ M5RJR IO92 035145 -5 2323 F1PBZ M5RJR R-16 035200 -3 2288 M5RJR F1PBZ RR73 035215 +0 2323 F1PBZ M5RJR 73 035245 -2 2323 CQ M5RJR IO92 035400 -20 2324 M5RJR K1JAK FN53 035415 +1 2324 K1JAK M5RJR +00 035430 -22 2324 M5RJR K1JAK R-05 035500 -12 1360 M5RJR UR5HIC KN69 (x4) 040515 -6 2324 CQ M5RJR IO92 040730 -10 2288 M5RJR RZ6ALZ R-15 040930 -18 1997 M5RJR EA5HM IM99
UTC dB Audio Message 011245 -11 1014 CQ M5RJR IO92 (x2) 011330 +1 1799 M5RJR DL8TV JN49 011345 -3 1014 DL8TV M5RJR +16 011400 +6 1799 M5RJR DL8TV R-01 011415 -1 1014 DL8TV M5RJR RR73 011430 +5 1799 M5RJR DL8TV 73 033645 -10 1018 OT2T M5RJR IO92 (x4) 033845 -11 1017 KY4WI M5RJR IO92 (x4)
UTC dB Audio Message 131345 -9 1907 M5RJR DG1ASD -03 131400 -12 1579 DL9KM M5RJR RR73 131415 -6 1907 M5RJR DG1ASD -05 131945 -11 419 M5RJR PD2MAC/P 73 132000 -1 1579 CQ M5RJR IO92 132015 -6 1579 M5RJR F1PPH JN07 (x10)
UTC dB Audio Message 092315 -15 945 DH1GKS M5RJR RR73 092545 -13 946 R9FF M5RJR -20 (x3) 092815 -14 946 RY9W M5RJR RR73 092845 -10 946 CQ M5RJR IO91 (x2) 092945 -14 946 EA7DNE M5RJR -17 (x3) 093215 -15 946 CQ M5RJR IO91 (x3) 093415 -16 946 UA9MMZ M5RJR R-05 093615 -16 946 BG8KUB M5RJR -13
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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