R3MDJ — 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 R3MDJ, decoded by SO8OO in southeastern Poland. 214 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 30 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-22.
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 214 FT8 messages attributed to R3MDJ as the transmitting token by decoded message structure across 30 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (47%), followed by 40 m (43%) and 80 m (10%). Most decodes (56%) fell within the six-hour window 13:00-19:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.
Overview
Bands
Last attributed message: 2026-10-22 15:42 UTC
Observed FT8 message patterns
- Attributed sample
- 214 messages
- Active dates
- 30 UTC dates
- Estimated median S/N
- -15 dB
- Estimated 10th-90th percentile
- -21 to +3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 94, moderate (-15 to -9 dB) 53, strong (≥ -8 dB) 67.
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 R3MDJ 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 R3MDJ
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 · 131 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,404 km (approx.)
- Last such locator decoded
- 2026-10-22 15:42 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 | R3MDJ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-22 15:39 | 40m | -14 / - | R9CA | - / - | 3 | Partial capture |
| 10-22 15:38 | 40m | -10 / -5 | UC8S | -9 / - | 3 | ✓ Closing observed |
| 10-22 15:36 | 40m | - / - | OH3MB | -3 / - | 2 | Partial capture |
| 10-22 15:29 | 40m | -14 / - | G6MTI | - / -15 | 2 | ✓ Closing fragment |
| 10-22 15:29 | 40m | - / - | DM2HK | -2 / - | 2 | Partial capture |
| 10-22 15:25 | 40m | - / -7 | EU1CZ | +1 / - | 3 | ✓ Closing fragment |
| 10-22 15:22 | 40m | - / -4 | RY6LAL | -10 / - | 2 | ✓ Closing fragment |
| 10-15 15:07 | 40m | -14 / - | RX9KJ | - / - | 2 | Partial capture |
| 10-15 14:57 | 40m | - / -11 | UA3PHB | -13 / - | 2 | ✓ Closing fragment |
| 10-15 14:34 | 40m | -19 / +5 | RU6FS | -7 / - | 2 | ✓ Closing observed |
| 10-15 14:12 | 40m | - / -3 | UB3FBD | -16 / - | 2 | ✓ Closing fragment |
| 10-15 14:10 | 40m | - / -9 | RA3LBW | -10 / - | 3 | ✓ Closing fragment |
| 10-15 14:06 | 40m | - / -6 | R3DQB | -12 / - | 3 | ✓ Closing fragment |
| 10-15 14:03 | 40m | - / +2 | OH7UE | -12 / - | 2 | ✓ Closing fragment |
| 10-14 16:20 | 40m | -12 / - | RA4AID | - / -13 | 2 | Partial capture |
| 10-14 16:11 | 40m | -16 / -11 | ON3MOH | -11 / -16 | 4 | ✓ Full exchange observed |
| 10-14 16:08 | 40m | -20 / -7 | R7ZY | +2 / - | 4 | ✓ Closing observed |
| 10-14 16:06 | 40m | -16 / - | UB8JFD | - / -14 | 3 | ✓ Closing fragment |
| 10-09 05:38 | 40m | - / - | F1IQH | -12 / - | 4 | Partial capture |
| 10-09 05:38 | 40m | - / - | F4BYA | +6 / - | 4 | Partial capture |
| 10-09 05:23 | 40m | -19 / -17 | M9PAS | -7 / -16 | 2 | Partial capture |
| 10-09 05:22 | 40m | - / - | F4BYA | +15 / - | 4 | Partial capture |
| 10-09 05:19 | 40m | - / -5 | UC6D | -4 / - | 2 | ✓ Closing fragment |
| 10-08 15:30 | 40m | - / -17 | PE1NPS | -4 / - | 3 | ✓ Closing fragment |
| 10-08 15:25 | 40m | - / - | DK5DW | -6 / - | 2 | Partial capture |
| 10-08 15:22 | 40m | - / -19 | U1BD | -10 / - | 2 | ✓ Closing fragment |
| 10-08 15:15 | 40m | - / -9 | RZ1AS | -5 / - | 3 | ✓ Closing fragment |
| 10-08 15:06 | 40m | - / - | PE1NPS | -11 / - | 3 | Partial capture |
| 10-05 13:33 | 40m | - / - | OH1TEV | -6 / - | 4 | Partial capture |
| 10-02 15:52 | 80m | -14 / - | R4HGK | - / - | 3 | Partial capture |
| 10-01 14:52 | 40m | -19 / -8 | RU3ACA | -9 / - | 4 | ✓ Closing observed |
| 10-01 14:50 | 40m | - / -10 | UB6HJZ | -12 / - | 2 | Partial capture |
| 09-29 13:59 | 40m | -21 / - | RT8T | - / -13 | 2 | ✓ Closing fragment |
| 09-29 13:54 | 40m | -21 / - | RZ9A | - / +1 | 3 | ✓ Closing fragment |
| 09-29 13:51 | 40m | - / - | SP5MIG | -16 / - | 2 | Partial capture |
| 09-29 13:49 | 40m | - / - | DK2NO | -16 / - | 4 | Partial capture |
| 09-28 15:49 | 40m | - / -7 | R6ODX | -4 / - | 2 | ✓ Closing fragment |
| 09-28 15:26 | 40m | -15 / - | UB4LDD | - / -5 | 5 | ✓ Closing fragment |
| 09-27 15:59 | 40m | - / -13 | R6SBN | -15 / - | 2 | ✓ Closing fragment |
| 09-27 15:56 | 40m | - / -8 | UB1AUW | -11 / - | 2 | ✓ Closing fragment |
| 09-19 13:38 | 40m | - / -21 | ON1DGN | -16 / - | 3 | Partial capture |
| 09-19 13:28 | 40m | - / -2 | RN3TT | -18 / - | 2 | ✓ Closing fragment |
| 09-19 13:25 | 40m | - / -5 | R3PMI | -12 / - | 2 | ✓ Closing fragment |
| 09-17 05:52 | 40m | - / -9 | RC2Y | -10 / - | 2 | Partial capture |
| 09-11 16:25 | 40m | -16 / +7 | RK3YWA | -12 / - | 5 | Partial capture |
| 09-11 16:21 | 40m | - / 0 | R4HNT | -8 / - | 2 | Partial capture |
| 09-09 18:25 | 80m | - / - | DO1MDO | +1 / - | 3 | Partial capture |
| 09-09 18:22 | 80m | - / - | IU3VSZ | -8 / - | 2 | Partial capture |
| 09-09 18:20 | 80m | -19 / -4 | RW4HBD | -15 / - | 4 | ✓ Closing observed |
| 09-09 18:18 | 80m | -13 / +3 | RX3AEX | +2 / +1 | 5 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 152900 -5 2239 R3MDJ DM2HK JO62 152915 -18 1382 G6MTI R3MDJ -15 (x2) 153000 +1 2239 R3MDJ DM2HK JO62 153115 -16 1381 R6AO R3MDJ 73 153630 -2 1290 R3MDJ OH3MB KP20 (x2) 153830 -8 1214 R3MDJ UC8S -05 (x2) 153915 -10 1291 UC8S R3MDJ 73 153945 -11 1291 R9CA R3MDJ KO97 (x3) 154215 -18 1291 CQ R3MDJ KO97 (x2)
UTC dB Audio Message 182100 -12 1963 R3MDJ RW4HBD 73 182115 -16 1305 CQ R3MDJ KO97 a1 182200 -6 488 R3MDJ IU3VSZ JN55 (x2) 182415 -15 1306 CQ R3MDJ KO97 a1 182500 -1 1941 R3MDJ DO1MDO JO50 (x3) 155215 -16 1352 CQ R3MDJ KO97 155245 -15 1301 R4HGK R3MDJ KO97 (x3) 155700 -9 967 R3MDJ R4HGK -08 151000 -20 1206 CQ R3MDJ KO97 (x2)
UTC dB Audio Message 062115 -5 1327 NF3R R3MDJ KO97 (x2) 062215 -12 1327 CQ R3MDJ KO97 062230 -7 2047 R3MDJ NF3R -16 062230 -11 2465 R3MDJ N1UL EL95 062300 -12 2047 R3MDJ NF3R -16 062300 +5 1327 R3MDJ F4LNM R-13 062500 -15 2465 R3MDJ N1UL EL95 060115 -3 1377 CQ R3MDJ KO97 a1 (x2) 060645 -9 1377 SM7TZK R3MDJ R-05 (x3) 060845 -12 1376 RI1FJL R3MDJ KO97 (x2)
UTC dB Audio Message 084800 -21 1287 R3MDJ R6DOP R-15 074415 -17 1292 R3MDJ RN6MA +04 (x2) 075600 -12 2238 R3MDJ UA7T R-11 (x2) 083345 -1 550 R3MDJ RN6LBT +02 (x2) 054815 -17 2098 R3MDJ RX6LG RR73 055830 -9 2248 R3MDJ R6OIZ -03 (x2) 060730 -20 1613 R3MDJ RT6Z -11 (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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