US1EA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Ukraine Most frequent locator attributed to this token: KN78

Receiver-side FT8 activity involving US1EA, decoded by SO8OO in southeastern Poland. 2,311 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 82 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-19.

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 2,311 FT8 messages attributed to US1EA as the transmitting token by decoded message structure across 82 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (34%), followed by 20 m (32%) and 40 m (24%). Most decodes (52%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -6.7 dB.

Overview

2,311
Messages attributed
82
UTC dates decoded
421
Active 15-min windows
-6.7 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-09-19 05:35 UTC

Observed FT8 message patterns

Attributed sample
2,311 messages
Active dates
82 UTC dates
Estimated median S/N
-6.7 dB
Estimated 10th-90th percentile
-19 to +6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 454, moderate (-15 to -9 dB) 559, strong (≥ -8 dB) 1,298.

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.

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 US1EA

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
KN78 · 1,315 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
971 km (approx.)
Last such locator decoded
2026-09-19 05:34 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 UTCBandUS1EA S/NCounterpartCounterpart S/NMsgsCapture
09-19 05:34 40m -14 / - RN3PD - / +6 2 Partial capture
09-19 05:30 40m -9 / 0 RA3PN -3 / - 5 ✓ Full exchange observed
09-18 18:55 80m +8 / - UA3PTK - / +9 4 ✓ Closing fragment
09-18 18:52 80m - / - DO2ANW -2 / - 2 Partial capture
09-18 18:47 80m - / -7 OZ1LXL +14 / - 8 Partial capture
09-18 18:33 40m -7 / - RA3TRR - / -7 3 ✓ Closing fragment
09-18 18:13 80m +3 / +3 R3LAF -6 / -24 9 ✓ Full exchange observed
09-18 01:59 80m +11 / -2 RA4CX +2 / - 5 ✓ Full exchange observed
09-18 01:57 80m - / - G8OO -8 / - 9 Partial capture
09-18 01:56 80m +7 / 0 R5DT +15 / - 5 ✓ Full exchange observed
09-18 01:53 80m +3 / - UA3PAB -4 / - 5 ✓ Full exchange observed
09-18 00:45 80m +13 / +2 RA3ZGT 0 / - 5 ✓ Full exchange observed
09-18 00:44 80m - / 0 ON1JP -19 / - 6 Partial capture
09-18 00:42 80m +15 / - R3PLN +12 / - 5 ✓ Full exchange observed
09-18 00:39 80m +14 / -9 IQ0AAI +5 / - 8 Partial capture
09-18 00:36 80m +2 / - R4HHN - / - 4 Partial capture
09-18 00:34 80m +8 / +1 YO3DIU +6 / +2 7 ✓ Full exchange observed
09-17 19:07 80m -6 / -5 UA1TAT -4 / -14 11 Partial capture
09-17 19:02 80m -5 / +9 UA3PTK -6 / - 6 ✓ Full exchange observed
09-17 18:59 80m +2 / -9 R3PJ -6 / -10 8 ✓ Full exchange observed
09-17 18:57 80m - / - R6OQ -14 / - 2 Partial capture
09-17 18:56 80m -2 / - UI6A - / - 3 Partial capture
09-17 18:53 80m 0 / +1 R3LDK -3 / +4 6 ✓ Full exchange observed
09-17 18:52 80m -2 / - UI6A - / - 2 Partial capture
09-17 18:49 80m -5 / - R3KLE -6 / - 7 ✓ Closing observed
09-17 18:48 80m - / - DK2MAX +8 / - 2 Partial capture
09-17 18:46 80m -2 / - RN3QN -7 / - 7 ✓ Full exchange observed
09-17 18:41 160m -23 / - UB3YCK - / - 2 Partial capture
09-17 18:29 40m -13 / -12 UB3LBU -2 / - 7 ✓ Closing observed
09-17 18:23 40m -1 / -8 RA6HA -5 / -10 4 ✓ Full exchange observed
09-17 18:21 40m +3 / -6 RA3P +6 / - 4 Partial capture
09-17 18:14 80m +3 / -12 UB3LBU +3 / -24 6 ✓ Full exchange observed
09-17 18:12 80m +4 / -9 EW6TW -3 / -9 5 ✓ Full exchange observed
09-17 18:10 80m -1 / - R3LAF - / - 3 Partial capture
09-17 18:08 80m -1 / -19 R3YH +4 / - 6 ✓ Full exchange observed
09-17 00:02 80m 0 / - R3PLN +4 / - 6 ✓ Full exchange observed
09-16 23:58 80m -2 / -8 5B4AMM +12 / +1 4 ✓ Full exchange observed
09-16 23:55 80m +4 / - R3PLN +5 / - 5 ✓ Full exchange observed
09-16 17:15 80m +2 / -9 UA3QNA +15 / -2 6 ✓ Full exchange observed
09-16 17:11 80m +4 / +10 RY3PAG -23 / -22 8 Partial capture
09-16 17:09 80m +8 / - RA6HA - / +3 2 ✓ Closing fragment
09-16 17:05 80m +10 / - UA3PY - / - 11 Partial capture
09-16 17:00 80m +5 / - RY3PAG - / - 5 Partial capture
09-15 16:16 80m +2 / - RM2P - / - 2 Partial capture
09-15 16:10 80m +6 / -7 UB3PAQ -17 / - 7 Partial capture
09-15 16:09 80m +8 / -7 UA3PY -2 / -1 4 ✓ Full exchange observed
09-15 16:05 40m -8 / - R3PBA - / -13 3 Partial capture
09-15 16:01 40m -5 / - R3PBA - / -13 3 Partial capture
09-14 19:21 80m -5 / -9 R1WBW +8 / +2 5 ✓ Full exchange observed
09-13 18:29 80m +1 / -11 RA3RPW -15 / -12 7 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

40m
UTC    dB Audio  Message
183145 -14 1527  UB3LBU US1EA KN78
183200  +3 1526  US1EA UB3LBU -16 (x2)
183245 -10 1527  UB3LBU US1EA 73
015000 +15  580  US1EA RN4LP RR73
183300  -8 1132  RA3TRR US1EA KN78 (x3)
053015 -10 2371  RA3PN US1EA KN78
053030  -2 2370  US1EA RA3PN +00
053045 -10 2371  RA3PN US1EA R+32
053100  -4 2370  US1EA RA3PN RR73
053115  -8 2371  RA3PN US1EA 73
053430 -13 1880  RN3PD US1EA KN78 (x2)
80m
UTC    dB Audio  Message
181515  +6 1171  R3LAF US1EA 73
184745 +18  833  US1EA OZ1LXL JO55 (x8)
185215  -1 2737  US1EA DO2ANW JN57 (x2)
185545 +10 2288  UA3PTK US1EA KN78 (x4)
160m
UTC    dB Audio  Message
185415 -11 1291  RM3ZR US1EA KN78
185430  +5 2288  US1EA RM3ZR -08
185445 -10 1291  RM3ZR US1EA R-13
185500  -1 2288  US1EA RM3ZR RR73
185515 -10 1291  RM3ZR US1EA 73
185530  +0 2288  US1EA RM3ZR KO90 (x2)
185945  -5 2618  RY3D US1EA KN78
190000 +12 2618  US1EA RY3D -01
190015  -5 2618  RY3D US1EA R-07
190030 +15 2618  US1EA RY3D RR73
190045  -7 2618  RY3D US1EA 73
190100  +7 2618  US1EA RY3D 73
184130 -24 1953  UB3YCK US1EA KN78 (x2)
20m
UTC    dB Audio  Message
091145  +6 2062  US1EA UT7UJ RR73
091230 -12 1487  EA3NG US1EA KN78
091930  -8  946  SV7BAY US1EA KN78 (x3)
092315 -13 1373  HA1ZW US1EA R+15
092845 -11 2258  R9CP US1EA KN78
134415 -18 1809  US1EA R2DX -01
134430 -12 1811  R2DX US1EA R+06 (x2)
134915  +2 2260  R5BM/M US1EA R-12
135045  -5 1731  UA4AEU US1EA KN78 (x4)
10m
UTC    dB Audio  Message
094715 -22 1682  US1EA OZ3MC +14 (x6)
115145  -9 2241  US1EA IK7DXP +08 (x2)
115445  -1  489  US1EA IK4LZH RR73
125915 -13 2436  US1EA E75W -06
064030 -19 1749  IU0WCX US1EA KN78 (x2)
075300 -12 2034  US1EA F6CEE IN94
132300  +3 1234  US1EA LZ1EV -16 (x2)
60m
UTC    dB Audio  Message
183530  +1  607  US1EA UT3XM -08

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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