R3ZMM — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving R3ZMM, decoded by SO8OO in southeastern Poland. 1,471 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 74 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-06.
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 1,471 FT8 messages attributed to R3ZMM as the transmitting token by decoded message structure across 74 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (42%), followed by 80 m (24%) and 40 m (14%). Most decodes (89%) fell within the six-hour window 16:00-22:00 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: 2026-10-06 19:02 UTC
Observed FT8 message patterns
- Attributed sample
- 1,471 messages
- Active dates
- 74 UTC dates
- Estimated median S/N
- -5 dB
- Estimated 10th-90th percentile
- -16 to +8 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 173, moderate (-15 to -9 dB) 335, strong (≥ -8 dB) 963.
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 R3ZMM 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 R3ZMM
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
- KO90 · 942 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,223 km (approx.)
- Last such locator decoded
- 2026-10-05 19:39 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 | R3ZMM S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-05 19:38 | 160m | -13 / - | SX2LGT | - / -12 | 4 | ✓ Closing fragment |
| 10-05 19:04 | 160m | -15 / -15 | UC1C | -11 / -16 | 4 | ✓ Full exchange observed |
| 10-05 18:35 | 160m | -18 / -21 | LX1TI | +6 / -18 | 12 | Partial capture |
| 10-05 18:13 | 160m | -20 / - | UN7LAN | - / - | 4 | Partial capture |
| 10-05 16:15 | 160m | -17 / - | RC1TF | -2 / -9 | 3 | ✓ Closing observed |
| 10-05 16:11 | 160m | - / -5 | RU3X | -8 / - | 3 | ✓ Closing fragment |
| 10-05 16:03 | 160m | -21 / - | R9CS/P | - / - | 5 | Partial capture |
| 10-04 20:12 | 160m | -1 / - | JA9CHI | - / - | 3 | Partial capture |
| 10-04 20:05 | 160m | - / -8 | SM0EUI | -4 / - | 2 | ✓ Closing fragment |
| 10-04 19:57 | 160m | -9 / - | UA0SCF | - / -16 | 5 | ✓ Closing fragment |
| 10-04 19:49 | 160m | -5 / -1 | LZ2IP | +12 / +2 | 5 | ✓ Full exchange observed |
| 10-04 19:45 | 160m | +4 / - | JA6MWW | - / -11 | 5 | ✓ Closing fragment |
| 10-04 19:31 | 160m | -2 / - | IZ1ANK | - / - | 9 | Partial capture |
| 10-04 17:18 | 160m | -1 / - | UB3AYH | - / - | 2 | Partial capture |
| 10-04 17:03 | 160m | -7 / -7 | RM5P | -9 / 0 | 5 | ✓ Full exchange observed |
| 10-03 20:01 | 40m | -2 / - | V61GSE | - / -14 | 12 | ✓ Closing fragment |
| 10-02 18:50 | 80m | +2 / - | II4NTTI | - / -11 | 2 | Partial capture |
| 10-02 18:45 | 80m | -2 / - | RN3N | - / -7 | 3 | Partial capture |
| 10-02 18:44 | 80m | -3 / - | R3PBA | -10 / +1 | 4 | ✓ Closing observed |
| 10-02 18:42 | 80m | -6 / +2 | UA6AAW | -8 / +2 | 5 | ✓ Full exchange observed |
| 10-02 18:39 | 80m | +8 / +3 | R6CW | -5 / +1 | 5 | ✓ Full exchange observed |
| 10-02 18:37 | 80m | +6 / - | R4CI | - / -2 | 3 | ✓ Closing fragment |
| 10-02 18:14 | 80m | - / - | DG4BZ | -17 / - | 4 | Partial capture |
| 10-02 18:13 | 80m | 0 / - | DL/AD2LX | - / -17 | 3 | Partial capture |
| 10-02 17:51 | 80m | - / +1 | DL/AD2LX | 0 / - | 2 | Partial capture |
| 10-02 17:50 | 80m | 0 / - | K6VHF/HR9 | - / -15 | 2 | Partial capture |
| 10-02 17:48 | 80m | 0 / -9 | R1BQC | -7 / - | 4 | ✓ Closing observed |
| 10-02 17:46 | 80m | +2 / - | SM2OTU | - / -17 | 3 | ✓ Closing fragment |
| 10-02 17:39 | 80m | +6 / - | RA0T | - / - | 2 | Partial capture |
| 10-02 17:18 | 160m | -20 / - | UA6XY | - / -2 | 2 | ✓ Closing fragment |
| 10-02 17:06 | 160m | -18 / - | OZ2LIN | -8 / -19 | 4 | ✓ Closing observed |
| 10-02 17:04 | 160m | - / 0 | HA8EV | 0 / - | 2 | ✓ Closing fragment |
| 10-02 17:00 | 160m | -14 / - | RZ0SW | - / - | 2 | Partial capture |
| 10-02 16:56 | 160m | -8 / - | RA0SAT | - / - | 2 | Partial capture |
| 10-02 16:52 | 160m | -12 / - | RA0FF | - / -24 | 4 | ✓ Closing fragment |
| 10-02 16:50 | 160m | -18 / - | JF3OWJ | - / - | 2 | Partial capture |
| 10-02 16:34 | 160m | -4 / - | JA7KPI | - / -26 | 7 | ✓ Closing fragment |
| 10-02 16:31 | 160m | -13 / - | R9YCA | - / -22 | 3 | Partial capture |
| 09-30 19:48 | 160m | -20 / - | EA8DO | - / - | 3 | Partial capture |
| 09-30 19:30 | 160m | -24 / - | RX3ACO | - / - | 2 | Partial capture |
| 09-30 19:23 | 160m | -20 / -23 | 9A3ZI | -8 / -20 | 5 | ✓ Full exchange observed |
| 09-30 19:21 | 160m | -18 / -17 | PA0O | -10 / -15 | 4 | ✓ Full exchange observed |
| 09-30 19:19 | 160m | -16 / - | F5OHS | - / - | 2 | Partial capture |
| 09-30 19:01 | 80m | -12 / - | ZC4OL | - / - | 5 | Partial capture |
| 09-30 15:06 | 80m | -11 / -9 | R2DRE | -16 / - | 2 | ✓ Closing observed |
| 09-30 15:05 | 80m | -12 / - | JA8GWA | - / -19 | 3 | ✓ Closing fragment |
| 09-29 18:52 | 160m | -18 / -17 | IK0XBX | +8 / - | 3 | ✓ Closing observed |
| 09-29 18:49 | 160m | -9 / -12 | OE3KJO | 0 / -14 | 5 | ✓ Full exchange observed |
| 09-29 18:44 | 160m | -17 / - | R1IV | - / - | 2 | Partial capture |
| 09-29 18:35 | 160m | -12 / - | JF3OWJ | - / - | 7 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 183815 +8 749 R3ZMM LX1TI -21 183830 -12 2178 LX1TI R3ZMM R-17 (x3) 185330 -23 2427 OH1LA R3ZMM R-22 190430 -18 2427 UC1C R3ZMM KO90 190445 -11 498 R3ZMM UC1C -15 190500 -15 2427 UC1C R3ZMM R-16 (x2) 193845 -18 1952 SX2LGT R3ZMM KO90 (x4) 190045 -19 2405 R8AHM R3ZMM R-23 190215 -14 2404 R3KIA R3ZMM 73
UTC dB Audio Message 045045 +4 3005 KL0U R3ZMM KO90 (x3) 200145 -3 2343 V61GSE R3ZMM KO90 (x12)
UTC dB Audio Message 184200 -8 1014 R3ZMM UA6AAW +02 (x2) 184245 -3 2114 UA6AAW R3ZMM R+02 184300 -6 1014 R3ZMM UA6AAW RR73 184315 -9 2114 UA6AAW R3ZMM 73 184345 -13 2114 R2BPS R3ZMM -12 184430 -14 2106 R3ZMM R3PBA KO93 184445 -1 2114 R3PBA R3ZMM +01 (x2) 184530 -5 2105 R3ZMM R3PBA 73 184545 -3 2114 RN3N R3ZMM -07 (x3) 185000 +1 2065 II4NTTI R3ZMM KO90 (x2)
UTC dB Audio Message 051100 +5 2788 RI1ANC R3ZMM KO90 (x4) 051330 +1 2784 EB3JT R3ZMM RR73 (x2) 051430 +6 2783 K7NN R3ZMM -09 (x4) 051630 +4 2781 EB3JT R3ZMM RR73 (x3) 051745 +4 2787 R3ZMM EB3JT RR73 051800 +6 2780 EB3JT R3ZMM 73
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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