EB3EFU — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving EB3EFU, decoded by SO8OO in southeastern Poland. 76 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 10 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-08-01.
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 76 FT8 messages attributed to EB3EFU as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (68%), followed by 20 m (32%). Several six-hour UTC windows tied for the largest share (68%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's moderate S/N range (63%); the estimated median was -12 dB.
Overview
Bands
Last attributed message: 2026-08-01 16:07 UTC
Observed FT8 message patterns
- Attributed sample
- 76 messages
- Active dates
- 10 UTC dates
- Estimated median S/N
- -12 dB
- Estimated 10th-90th percentile
- -16 to 0 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 48, strong (≥ -8 dB) 19.
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 EB3EFU 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 EB3EFU
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
- JN12 · 33 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,659 km (approx.)
- Last such locator decoded
- 2026-08-01 16:07 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 | EB3EFU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-01 16:07 | 20m | -15 / - | BH2WTV | - / - | 2 | Partial capture |
| 08-01 16:02 | 20m | -16 / - | PD0HLA | - / - | 2 | ✓ Closing fragment |
| 08-01 15:59 | 20m | -15 / - | <...> | - / - | 2 | Partial capture |
| 07-30 09:26 | 10m | -14 / - | EA7CU | -15 / -3 | 2 | Partial capture |
| 07-30 09:21 | 10m | -10 / - | OE1AVO | - / -3 | 2 | ✓ Closing fragment |
| 07-30 09:06 | 10m | - / -6 | RN6MA | -1 / - | 2 | ✓ Closing fragment |
| 07-28 16:15 | 20m | -15 / - | RA4Y | +1 / -3 | 4 | Partial capture |
| 07-28 16:13 | 20m | - / -14 | RN6MA | +8 / - | 3 | Partial capture |
| 07-27 16:58 | 20m | -14 / - | F1PBZ | -10 / +3 | 3 | ✓ Closing observed |
| 07-27 16:56 | 20m | -8 / - | BG5JGG | - / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 164630 -2 580 EB3EFU OZ/KD0NDU -11 164830 +0 579 EB3EFU RR73; BH3HAO <...> -26
UTC dB Audio Message 170200 -15 798 EB3EFU M8KKH JO01 161345 +10 807 EB3EFU RN6MA -14 (x3) 161545 +2 2463 EB3EFU RA4Y LO35 (x3) 161700 -15 807 RA4Y EB3EFU -03 155900 -16 820 <...> EB3EFU JN12 (x2) 160030 -4 820 IN3IJJ EB3EFU -07 160200 -16 820 PD0HLA EB3EFU 73 (x2) 160715 -15 819 BH2WTV EB3EFU JN12 (x2)
UTC dB Audio Message 172130 +5 1420 EB3EFU RW3QW -01 172145 -16 870 PD0HLA EB3EFU R-10 172245 -14 869 CQ EB3EFU JN12 a1 090630 +2 869 EB3EFU RN6MA -06 (x2) 090815 -14 869 DN9EM EB3EFU RR73 091145 -11 867 DN9SGE EB3EFU RR73 091445 -14 867 LZ4VR EB3EFU -14 091915 -13 884 CQ EB3EFU JN12 091945 -12 884 SP6OWA EB3EFU +00 092045 -10 884 CQ EB3EFU JN12 092115 -10 884 OE1AVO EB3EFU -03 (x2) 092645 -14 884 EA7CU EB3EFU -03 092700 -15 884 EB3EFU EA7CU IM86
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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