ER3UA — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving ER3UA, decoded by SO8OO in southeastern Poland. 4,218 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 69 UTC dates in the available aggregate history. Observed between 2026-06-14 and 2026-09-20.
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 4,218 FT8 messages attributed to ER3UA as the transmitting token by decoded message structure across 69 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (87%), followed by 80 m (7%) and 160 m (3%). Most decodes (57%) 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 (88%); the estimated median was -2 dB.
Overview
Bands
Last attributed message: 2026-09-20 19:20 UTC
Observed FT8 message patterns
- Attributed sample
- 4,218 messages
- Active dates
- 69 UTC dates
- Estimated median S/N
- -2 dB
- Estimated 10th-90th percentile
- -9 to +4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 72, moderate (-15 to -9 dB) 416, strong (≥ -8 dB) 3,730.
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 ER3UA 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 ER3UA
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
- KN37 · 1,986 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 468 km (approx.)
- Last such locator decoded
- 2026-09-20 19:20 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 | ER3UA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-20 19:22 | 80m | - / -14 | II7IAME | -4 / - | 2 | Partial capture |
| 09-20 19:19 | 80m | 0 / - | II9IAGM | - / - | 4 | Partial capture |
| 09-20 19:16 | 80m | +6 / - | R2EA/P | - / -10 | 3 | Partial capture |
| 09-20 19:14 | 160m | - / -19 | UA3QQG | -16 / - | 3 | Partial capture |
| 09-20 19:06 | 160m | +1 / - | RI1FJZ | - / -19 | 14 | ✓ Closing fragment |
| 09-20 19:03 | 160m | +4 / - | <...> | - / -2 | 2 | Partial capture |
| 09-20 18:28 | 60m | -1 / +3 | SQ8AA | -3 / +6 | 9 | ✓ Full exchange observed |
| 09-20 18:27 | 60m | -2 / - | CN8DN | - / -18 | 6 | ✓ Closing fragment |
| 09-20 18:26 | 60m | 0 / +1 | OZ1NIB | -6 / 0 | 4 | ✓ Full exchange observed |
| 09-20 18:24 | 60m | -1 / +9 | OE3KJO | -8 / -4 | 5 | ✓ Full exchange observed |
| 09-20 18:20 | 60m | -2 / -12 | DL1WU | -18 / -24 | 4 | ✓ Full exchange observed |
| 09-20 18:18 | 60m | 0 / -4 | PF1B | -18 / -12 | 4 | ✓ Full exchange observed |
| 09-20 18:17 | 60m | 0 / -5 | F4FQY | -18 / -10 | 5 | ✓ Full exchange observed |
| 09-20 18:15 | 60m | +2 / - | SP9MRO | +13 / - | 7 | ✓ Full exchange observed |
| 09-20 18:15 | 60m | -1 / -2 | SM5VSS | -6 / -1 | 5 | ✓ Full exchange observed |
| 09-20 18:14 | 60m | - / - | SQ8AA | -7 / - | 10 | Partial capture |
| 09-20 18:12 | 60m | 0 / -5 | PA0LUX | -14 / -15 | 6 | ✓ Full exchange observed |
| 09-20 18:11 | 60m | 0 / -3 | SV1DKR | -9 / +1 | 5 | ✓ Full exchange observed |
| 09-20 18:08 | 60m | 0 / - | DF1WR | - / -8 | 2 | Partial capture |
| 09-20 18:06 | 60m | -2 / +5 | DL8UD | -1 / +6 | 6 | ✓ Full exchange observed |
| 09-20 18:06 | 60m | 0 / +8 | SP5TIC | +4 / +7 | 5 | ✓ Full exchange observed |
| 09-20 18:05 | 60m | - / - | DF1WR | -16 / - | 2 | Partial capture |
| 09-20 18:04 | 60m | -2 / +1 | SP2BDR | +17 / - | 2 | ✓ Closing observed |
| 09-20 18:02 | 60m | -4 / -16 | LA9JKA | -7 / +1 | 5 | ✓ Full exchange observed |
| 09-20 17:59 | 60m | -2 / -1 | OK7PJ | +4 / +2 | 9 | ✓ Full exchange observed |
| 09-20 17:59 | 60m | -4 / +5 | OE2VEL | +6 / - | 5 | ✓ Full exchange observed |
| 09-20 17:58 | 60m | 0 / -5 | F6BPZ | -10 / -3 | 6 | ✓ Full exchange observed |
| 09-20 17:57 | 60m | +1 / -4 | DB8TS | -17 / -9 | 5 | ✓ Full exchange observed |
| 09-20 17:56 | 60m | -5 / +2 | HB9DGZ | 0 / - | 6 | ✓ Full exchange observed |
| 09-20 17:56 | 60m | -4 / +3 | SP2MS | -3 / +4 | 5 | ✓ Full exchange observed |
| 09-20 17:28 | 80m | +4 / - | RI1FJZ | - / - | 4 | Partial capture |
| 09-20 17:24 | 80m | +3 / +3 | EM90ZMV | +17 / -10 | 5 | Partial capture |
| 09-20 03:39 | 60m | -8 / - | SP9RA | - / +3 | 5 | Partial capture |
| 09-20 03:38 | 60m | -7 / -5 | IZ8EOB | -6 / - | 5 | ✓ Closing observed |
| 09-20 03:38 | 60m | -7 / -3 | IK1WGX | -4 / +6 | 5 | ✓ Full exchange observed |
| 09-20 03:37 | 60m | - / -3 | HB9CXZ | +2 / - | 6 | Partial capture |
| 09-20 03:36 | 60m | -4 / -3 | LY2EW | -14 / 0 | 6 | ✓ Full exchange observed |
| 09-20 03:35 | 60m | -2 / +2 | F1PBZ | +2 / -6 | 4 | ✓ Full exchange observed |
| 09-20 03:35 | 60m | -4 / -16 | IT9LCC | -18 / -15 | 10 | ✓ Full exchange observed |
| 09-20 03:35 | 160m | - / - | EA3EDU | -19 / - | 3 | Partial capture |
| 09-20 03:34 | 60m | -2 / - | VE3FF | - / - | 3 | Partial capture |
| 09-20 03:29 | 160m | +5 / - | PF7DKW | - / - | 3 | Partial capture |
| 09-19 18:44 | 80m | -10 / - | V51WH | - / -15 | 10 | Partial capture |
| 09-17 03:42 | 60m | - / -4 | F5MOO | -12 / - | 4 | ✓ Closing fragment |
| 09-17 03:35 | 60m | - / -3 | F5OHS | -6 / - | 3 | ✓ Closing fragment |
| 09-17 03:32 | 160m | +2 / -15 | LY3BRA | -3 / - | 2 | Partial capture |
| 09-17 03:30 | 160m | 0 / -16 | PA0O | +15 / -12 | 7 | ✓ Full exchange observed |
| 09-16 18:40 | 60m | +5 / -5 | PE1BTV | -13 / -13 | 5 | ✓ Full exchange observed |
| 09-16 18:36 | 60m | +5 / -1 | DH1DA | -19 / -12 | 5 | ✓ Full exchange observed |
| 09-16 18:35 | 60m | +6 / -8 | E79D | +11 / +6 | 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 172845 +3 2106 RI1FJZ ER3UA KN37 (x3) 175115 +2 2106 YU65AEC ER3UA KN37 175215 -3 2106 <II9IAGM> ER3UA KN37 191645 +5 2194 R2EA/P ER3UA KN37 191700 +6 559 ER3UA II9IAGM -09 191715 +5 2194 R2EA/P ER3UA KN37 (x2) 191915 +0 2194 II9IAGM ER3UA KN37 (x4) 192200 +0 1221 ER3UA II7IAME -14 (x2)
UTC dB Audio Message 190815 +1 2393 RI1FJZ ER3UA KN37 (x11) 191400 -13 1518 ER3UA UA3QQG -19 (x2) 191430 -24 1567 ER3UA RW3VA -07 191500 -16 1518 ER3UA UA3QQG -19
UTC dB Audio Message 182715 -1 1988 CN8DN ER3UA KN37 (x2) 182800 -3 2356 ER3UA SQ8AA KN19 182815 +0 1988 CN8DN ER3UA KN37 182830 -2 2356 ER3UA SQ8AA KN19 (x2) 182915 -1 1988 CN8DN ER3UA R-18 (x2) 183000 -3 2356 ER3UA SQ8AA KN19 183015 -4 1988 CN8DN ER3UA 73 183030 -1 2356 ER3UA SQ8AA KN19 183045 +0 1988 SQ8AA ER3UA +06 183100 -6 2356 ER3UA SQ8AA R+03 183115 -2 1988 SQ8AA ER3UA RR73 183130 -4 2356 ER3UA SQ8AA 73
UTC dB Audio Message 163815 +2 726 ER3UA DL6EL R+00 163830 +9 2549 DL6EL ER3UA RR73 163845 +5 2912 ER3UA R2EC KO82 163845 +5 726 ER3UA DL6EL 73 163915 +12 2912 ER3UA R2EC KO82 163945 -15 1810 ER3UA R4PFY -15 (x3) 165045 +7 2348 RA9CUU ER3UA KN37 (x2) 165130 -10 1005 ER3UA RA9CUU RR73 165145 +3 2348 RA9CUU ER3UA 73 164015 +1 2236 UB2FEK ER3UA KN37 (x3)
UTC dB Audio Message 134930 -6 2478 ER3UA G7LHK R-21 (x3) 164330 -5 2728 ER3UA OH3OJ -12 164330 +4 1962 ER3UA EB3JT JN01 164400 -1 923 ER3UA LA6RJA -09 164400 +0 1961 ER3UA EB3JT R-12 (x2) 164800 +6 786 ER3UA LA6RJA RR73 164830 -2 2728 ER3UA OH3OJ -13 (x2) 165000 +0 1962 ER3UA UA4FEN -01 (x4)
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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