RZ3ARS — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving RZ3ARS, decoded by SO8OO in southeastern Poland. 43 FT8 messages attributed to this token as transmitter, on 160m, 80m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-09 and 2026-09-26.
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 43 FT8 messages attributed to RZ3ARS as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (91%), followed by 80 m (9%). In this small sample, the estimated median decoder S/N was -7 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-26 01:00 UTC
Observed FT8 message patterns
- Attributed sample
- 43 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -7 dB
- Estimated 10th-90th percentile
- -18 to -5 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 13, strong (≥ -8 dB) 22.
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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with RZ3ARS in decoded directed-looking exchanges:
Most frequent locator attributed to RZ3ARS
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
- KO75 · 18 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,081 km (approx.)
- Last such locator decoded
- 2026-09-26 01:00 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 | RZ3ARS S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-26 01:00 | 160m | -8 / -7 | OH5KNL | 0 / +3 | 4 | ✓ Full exchange observed |
| 09-26 00:45 | 160m | -11 / -19 | IT9ODQ | +1 / -4 | 7 | ✓ Full exchange observed |
| 09-26 00:29 | 160m | -13 / -12 | R6OBN | -14 / +5 | 10 | ✓ Full exchange observed |
| 09-26 00:22 | 160m | -11 / -11 | PA3DOL | -6 / -13 | 20 | ✓ Full exchange observed |
| 09-26 00:20 | 160m | -6 / -6 | RM5F | +12 / - | 4 | ✓ Full exchange observed |
| 09-26 00:17 | 160m | -10 / -8 | DK7ZT | +8 / -16 | 5 | ✓ Full exchange observed |
| 09-26 00:17 | 160m | - / - | RM5F | +4 / - | 2 | Partial capture |
| 09-26 00:10 | 160m | - / -6 | DK7ZT | -1 / - | 5 | Partial capture |
| 09-26 00:10 | 160m | -17 / +2 | RK4FD | +6 / - | 13 | ✓ Full exchange observed |
| 09-26 00:08 | 160m | -9 / -17 | UA9UR | -20 / -12 | 4 | Partial capture |
| 09-09 22:17 | 80m | - / +3 | RA3TVW | -10 / - | 3 | Partial capture |
| 09-09 22:16 | 80m | -7 / - | UA4FKT | +9 / - | 4 | Partial capture |
| 09-09 21:56 | 80m | - / -5 | DK7ZT | -2 / - | 3 | Partial capture |
| 09-09 21:55 | 80m | - / - | DL9KM | -14 / - | 2 | Partial capture |
| 09-09 21:53 | 80m | -6 / -4 | SO100PKP | -14 / +3 | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 004545 +1 1106 RZ3ARS IT9ODQ -19 004600 -7 1106 IT9ODQ RZ3ARS R-04 004615 +3 1106 RZ3ARS IT9ODQ -19 004630 -12 1106 IT9ODQ RZ3ARS R-04 004645 -2 1106 RZ3ARS IT9ODQ RR73 004700 -12 1107 IT9ODQ RZ3ARS 73 004830 -7 1106 CQ RZ3ARS KO75 (x5) 010000 -7 2128 OH5KNL RZ3ARS KO75 010015 +2 2124 RZ3ARS OH5KNL -07 010030 -9 2128 OH5KNL RZ3ARS R+03 010045 -3 2124 RZ3ARS OH5KNL RR73
UTC dB Audio Message 215600 -5 1112 RZ3ARS DK7ZT -05 (x3) 215730 -11 1665 RZ3ARS DL9KM JN68 221600 -9 1025 CQ RZ3ARS KO75 221615 -10 1484 RZ3ARS SV9MBH KM25 221615 +5 2428 RZ3ARS IQ4JO JN63 221615 +11 1021 RZ3ARS 9A4ZM JN86 221630 -7 1025 UA4FKT RZ3ARS +13 221645 +10 1024 RZ3ARS UA4FKT R+13 (x2) 221715 -12 1225 RZ3ARS RA3TVW +03 221745 +7 1024 RZ3ARS UA4FKT R+13 221745 -11 1225 RZ3ARS RA3TVW +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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