EC3A — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving EC3A, decoded by SO8OO in southeastern Poland. 37,399 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 78 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-09-12.
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 37,399 FT8 messages attributed to EC3A as the transmitting token by decoded message structure across 78 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (52%), followed by 40 m (15%) and 80 m (14%). The busiest six-hour window was 20:00-02:00 UTC, containing 43% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.
Overview
Bands
Last attributed message: 2026-09-12 04:34 UTC
Observed FT8 message patterns
- Attributed sample
- 37,399 messages
- Active dates
- 78 UTC dates
- Estimated median S/N
- -13 dB
- Estimated 10th-90th percentile
- -22 to -2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 14,004, moderate (-15 to -9 dB) 12,692, strong (≥ -8 dB) 10,703.
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 EC3A 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 EC3A
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
- JN00 · 26,795 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,927 km (approx.)
- Last such locator decoded
- 2026-09-12 04:34 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 | EC3A S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-12 04:25 | 60m | -20 / 0 | HA5CPN | -9 / -4 | 5 | ✓ Full exchange observed |
| 09-12 04:24 | 60m | -19 / - | CO2JD | - / -6 | 4 | ✓ Closing fragment |
| 09-12 04:18 | 60m | -20 / - | CO2JD | - / -5 | 2 | Partial capture |
| 09-12 04:09 | 60m | -19 / - | HC5F | - / -18 | 4 | ✓ Closing fragment |
| 09-12 04:04 | 60m | -15 / - | WT4N | - / -17 | 4 | ✓ Closing fragment |
| 09-12 04:02 | 60m | - / -6 | K2MTG | -18 / - | 3 | ✓ Closing fragment |
| 09-12 04:01 | 60m | -8 / - | HC5F | - / -15 | 2 | Partial capture |
| 09-12 03:55 | 60m | -20 / - | HC5F | - / -17 | 3 | Partial capture |
| 09-12 03:49 | 60m | -21 / - | HC5F | - / -17 | 4 | Partial capture |
| 09-12 03:46 | 60m | -15 / - | HC5F | - / -15 | 2 | Partial capture |
| 09-12 03:43 | 60m | -14 / - | HC5F | - / -18 | 2 | Partial capture |
| 09-12 03:37 | 60m | -12 / - | HC5F | - / -17 | 2 | Partial capture |
| 09-12 03:31 | 60m | -20 / -1 | UB3BDJ | -9 / -9 | 5 | ✓ Full exchange observed |
| 09-11 22:30 | 80m | - / - | DA0O | -24 / - | 2 | Partial capture |
| 09-11 22:02 | 60m | -14 / - | EA5OM | - / -18 | 2 | Partial capture |
| 09-11 22:01 | 60m | -17 / -7 | GX4RAF/P | -4 / +3 | 5 | ✓ Full exchange observed |
| 09-11 21:48 | 60m | -18 / -1 | DL1AOB | -2 / -4 | 5 | ✓ Full exchange observed |
| 09-11 21:31 | 60m | -19 / 0 | ER1CW | -21 / -9 | 3 | ✓ Full exchange observed |
| 09-11 21:26 | 60m | -18 / +3 | EB5AFK | -7 / +1 | 3 | ✓ Full exchange observed |
| 09-11 21:23 | 60m | -20 / -1 | G0ORC | -10 / -3 | 4 | ✓ Full exchange observed |
| 09-11 21:18 | 40m | -14 / - | G3SZG | - / -20 | 2 | ✓ Closing fragment |
| 09-11 21:15 | 40m | -13 / -4 | 9A3MYL | -18 / -8 | 3 | ✓ Full exchange observed |
| 09-11 21:12 | 40m | -10 / - | EU4ABJ/P | - / -3 | 2 | ✓ Closing fragment |
| 09-11 21:09 | 40m | -10 / - | VO1911G | - / -8 | 2 | Partial capture |
| 09-11 21:07 | 40m | -8 / - | JH5FXP | - / -11 | 3 | ✓ Closing fragment |
| 09-11 21:04 | 40m | -8 / - | IU5TRG | - / -9 | 2 | Partial capture |
| 09-11 21:03 | 60m | -12 / -3 | IT9KMN | +4 / -3 | 2 | Partial capture |
| 09-11 21:02 | 40m | -9 / - | PP6BVM | - / -21 | 2 | Partial capture |
| 09-11 21:01 | 40m | -11 / +10 | G3WAG | -14 / -10 | 2 | Partial capture |
| 09-11 20:56 | 40m | -8 / - | VO1911G | - / -7 | 2 | Partial capture |
| 09-11 20:55 | 40m | -6 / - | TF4CU | - / -14 | 2 | ✓ Closing fragment |
| 09-11 20:55 | 60m | -15 / - | UX0FF | - / -15 | 5 | Partial capture |
| 09-11 20:53 | 60m | -16 / - | EA8DS | - / -4 | 2 | ✓ Closing fragment |
| 09-11 20:52 | 60m | -17 / - | EA5JKT | - / -4 | 2 | Partial capture |
| 09-11 20:48 | 40m | -7 / - | SV1JFL | - / -5 | 2 | Partial capture |
| 09-11 20:47 | 60m | -18 / -4 | DL1MST | -11 / -7 | 5 | ✓ Full exchange observed |
| 09-11 20:45 | 60m | -16 / - | DL1KYF/P | - / -15 | 2 | ✓ Closing fragment |
| 09-11 20:43 | 60m | -15 / - | EA8CZ | - / -7 | 2 | ✓ Closing fragment |
| 09-11 20:41 | 60m | -15 / +2 | DG2EBG | -14 / -12 | 4 | ✓ Full exchange observed |
| 09-11 20:38 | 40m | - / -14 | UB6LUR | 0 / - | 2 | ✓ Closing fragment |
| 09-11 20:34 | 60m | -18 / -5 | LB5AK | 0 / -4 | 4 | ✓ Full exchange observed |
| 09-11 20:31 | 60m | -20 / - | UD6AWH | - / -6 | 2 | Partial capture |
| 09-11 20:29 | 60m | -21 / -9 | PE1GMS | -18 / -9 | 4 | ✓ Full exchange observed |
| 09-11 20:27 | 40m | - / -10 | G0JJG | -2 / - | 2 | ✓ Closing fragment |
| 09-11 20:22 | 60m | -21 / -2 | 9A9O | -10 / -1 | 4 | ✓ Full exchange observed |
| 09-11 20:20 | 60m | -23 / -5 | EH1PDA | -17 / - | 3 | ✓ Closing observed |
| 09-11 20:03 | 60m | - / +3 | OE6JCG | 0 / - | 2 | ✓ Closing fragment |
| 09-11 20:01 | 60m | -15 / +3 | DL2FBY | -18 / -6 | 4 | ✓ Full exchange observed |
| 09-11 19:59 | 60m | -16 / -8 | SN31ROT | +3 / -8 | 2 | Partial capture |
| 09-11 19:52 | 40m | - / -6 | IU5KYZ | -11 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 042615 -8 1642 EC3A HA5CPN 73 042630 -23 1642 CO2JD EC3A -05 042700 -16 1642 CQ EC3A JN00 (x2) 042800 -18 1643 CO2JD EC3A -06 (x2) 042900 -17 1642 CQ EC3A JN00 (x9)
UTC dB Audio Message 034800 -12 1443 EC3A TA2LG 73 034900 -24 860 EC3A DO2KST 73 034915 -19 1664 S51TN EC3A -10 035015 -20 1664 CQ EC3A JN00 035030 +10 1305 EC3A SP7SZJ JO91 035030 +15 2743 EC3A S51TN R-04 035100 +3 1305 EC3A SP7SZJ R-06 035100 +8 2743 EC3A S51TN R-04 035115 -24 1664 SP7SZJ EC3A RR73 035130 +11 2743 EC3A S51TN R-04 035130 +5 1305 EC3A SP7SZJ 73 035145 -13 1663 S51TN EC3A RR73 035200 +12 2743 EC3A S51TN 73 223030 -24 1612 EC3A DA0O JO30 (x2)
UTC dB Audio Message 210930 -10 1698 VO1911G EC3A -08 211000 -9 1698 CQ EC3A JN00 (x2) 211100 -8 1698 LZ3TDS EC3A -10 211230 -8 1698 EU4ABJ/P EC3A RR73 (x2) 211445 -14 1698 CQ EC3A JN00 211515 -13 1698 9A3MYL EC3A -08 211530 -18 2185 EC3A 9A3MYL R-04 (x2) 211615 -11 1699 F4MZO EC3A -05 211715 -14 1698 JE4NAN EC3A -13 211815 -13 1698 G3SZG EC3A -20 (x2) 211930 -11 1335 EC3A II9IAGM R-04
UTC dB Audio Message 073430 -7 1815 EC3A G7RCQ IO91 (x3) 094515 -2 2224 EC3A TA1MB R-17 (x2) 095545 +1 848 EC3A DK8WQ JO40 (x2) 095615 +3 1054 EC3A ON3MOH R-14 095645 +3 848 EC3A DK8WQ JO40 095645 -1 1054 EC3A ON3MOH R-14 095715 +4 848 EC3A DK8WQ JO40 (x2) 095745 +4 1054 EC3A ON3MOH R-14 095845 +10 848 EC3A DK8WQ 73 152415 +2 2224 R9YBW EC3A -16
UTC dB Audio Message 195000 -22 1892 YO9ZIP EC3A RR73 200145 -11 838 EC3A IK1LJO R-01 (x2) 125315 -24 1535 CQ EC3A JN00 (x2) 132030 -9 2398 EC3A IK6CGO JN63 163730 -13 1942 EC3A G3RWF -09 (x2) 081330 -13 1312 EC3A DN9DSP R-16 (x3) 161715 -6 1104 EC3A DN9RL JO61 (x3) 162145 -3 1855 EC3A OK1STK JO60
UTC dB Audio Message 214215 -5 1491 EC3A OZ1GI JO45 (x2) 215145 +1 1436 EC3A 9A2AJ R-12 (x2) 215330 -7 493 EC3A EI2IP 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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