EM70WWW — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Ukraine Most frequent locator attributed to this token: JN99

Receiver-side FT8 activity involving EM70WWW, decoded by SO8OO in southeastern Poland. 1,721 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 20 UTC dates in the available aggregate history. Observed between 2026-09-02 and 2026-10-07.

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 1,721 FT8 messages attributed to EM70WWW as the transmitting token by decoded message structure across 20 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (46%), followed by 40 m (42%) and 160 m (12%). The busiest six-hour window was 18:00-00:00 UTC, containing 42% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (85%); the estimated median was +1 dB.

Overview

1,721
Messages attributed
20
UTC dates decoded
152
Active 15-min windows
+1 dB
Estimated median S/N

Bands

160m · 209 80m · 785 40m · 727
First attributed message: 2026-09-02
Last attributed message: 2026-10-07 20:52 UTC

Observed FT8 message patterns

Attributed sample
1,721 messages
Active dates
20 UTC dates
Estimated median S/N
+1 dB
Estimated 10th-90th percentile
-10.7 to +11 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 67, moderate (-15 to -9 dB) 192, strong (≥ -8 dB) 1,462.

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 EM70WWW 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 EM70WWW

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
JN99 · 6 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
206 km (approx.)
Last such locator decoded
2026-09-18 03:59 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 UTCBandEM70WWW S/NCounterpartCounterpart S/NMsgsCapture
10-07 20:45 160m 0 / - <...> - / - 2 Partial capture
10-07 20:39 160m -6 / - YO8CKT - / -10 9 Partial capture
10-07 20:31 160m -2 / - DG2NBG +8 / -13 2 Partial capture
10-07 20:29 160m - / - IK0HBN +4 / - 2 Partial capture
10-07 20:27 160m -8 / -14 UA4FKT -8 / -7 4 Partial capture
10-07 20:24 160m 0 / - <...> +6 / - 4 ✓ Closing fragment
10-07 20:22 160m -3 / -4 HG9FS +9 / -15 5 Partial capture
10-07 20:13 160m -5 / - <...> -4 / - 2 ✓ Closing fragment
10-07 20:11 160m -3 / - OK1DX - / -19 2 Partial capture
10-07 20:08 160m -4 / - <...> +12 / - 3 ✓ Closing fragment
10-07 20:08 160m +3 / -9 DK8CX -6 / -12 3 Partial capture
10-07 20:06 160m - / - DL3HRZ -13 / - 7 Partial capture
10-07 20:04 160m -1 / - <...> +6 / - 2 ✓ Closing fragment
10-07 20:01 160m +1 / - <...> +6 / - 2 ✓ Closing fragment
10-07 20:00 160m -1 / -9 SP9UPV +4 / -6 4 Partial capture
10-07 19:55 160m +4 / - <...> - / - 5 Partial capture
10-07 19:54 160m - / -17 UA4FKT -6 / - 2 Partial capture
10-07 19:50 160m +4 / - <...> -11 / - 2 ✓ Closing fragment
10-07 19:42 160m +5 / -9 SP1MGM +3 / -14 4 Partial capture
10-07 19:37 160m - / - IK4PLW +1 / - 3 Partial capture
10-07 19:33 160m +1 / - <...> +4 / - 9 ✓ Closing fragment
10-07 19:02 160m +1 / - <...> - / - 7 ✓ Closing fragment
10-07 19:00 160m -2 / - UT1EI - / -13 3 Partial capture
10-07 18:56 160m -1 / - <...> -2 / - 3 ✓ Closing fragment
10-07 18:56 160m +1 / -7 US2YW -4 / -10 2 Partial capture
10-07 18:48 160m -1 / - 9A6OY -17 / -12 15 Partial capture
10-07 18:44 160m -3 / - 9A4ZM - / -15 5 Partial capture
10-07 18:43 160m - / - 9A6OY -13 / - 3 Partial capture
10-07 18:43 160m +1 / - <...> +3 / - 2 ✓ Closing fragment
10-07 18:42 160m +1 / -6 DL1NEO -5 / -19 3 Partial capture
10-07 18:38 160m -1 / - <...> +13 / - 2 ✓ Closing fragment
09-23 17:46 80m - / - R5KH -11 / - 2 Partial capture
09-23 04:51 80m - / - 5P1KZX +9 / - 3 Partial capture
09-22 20:46 80m - / -17 ON4MAP -18 / - 2 Partial capture
09-22 19:15 80m - / - US7LM 0 / - 4 Partial capture
09-22 18:47 80m +9 / +7 DL3BUA -6 / -13 3 Partial capture
09-22 18:45 80m +12 / +2 HA7XL +3 / +1 2 Partial capture
09-22 18:43 80m +22 / - SP9DWT -5 / -18 2 Partial capture
09-22 18:41 80m +15 / - <...> -5 / - 10 ✓ Closing fragment
09-22 18:41 80m - / - I1RJP -3 / - 7 Partial capture
09-22 18:41 80m - / +6 US5ZCO -8 / - 3 Partial capture
09-22 18:40 80m +19 / +4 ES2AJ +10 / -4 3 Partial capture
09-22 18:38 80m - / - I1RJP +6 / - 3 Partial capture
09-22 18:35 80m - / -15 PC2J -5 / - 3 Partial capture
09-22 18:33 80m - / - DO7MEW -11 / - 2 Partial capture
09-22 18:31 80m -1 / - SP9DWT +4 / -8 2 Partial capture
09-22 18:30 80m +2 / - PA3BMB -6 / -18 3 Partial capture
09-22 18:26 80m +8 / - <...> -2 / - 3 ✓ Closing fragment
09-22 18:23 80m +6 / -14 UR5FQF 0 / -16 6 Partial capture
09-22 18:19 80m +5 / - <...> +8 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

160m 
UTC    dB Audio  Message
204315  -9 1496  YO8CKT EM70WWW -10 (x2)
204445  -3 1496  CQ EM70WWW
204515  +1 1496  <...> EM70WWW (x2)
204715  -4 1496  CQ EM70WWW (x4)
204900  -2 1494  EM70WWW ER1BSV KN47
204945  -2 1496  <...> EM70WWW RR73
205115  +0 1496  CQ EM70WWW (x3)
021615  -2 1814  EM70WWW RN1CW KO59
80m 
UTC    dB Audio  Message
191515  -6 1599  EM70WWW US7LM KN89 (x5)
192845  -6 1630  EM70WWW SP7ROM R-07
194345  -2 2634  EM70WWW DJ4FAN R-05
204615 -19  383  EM70WWW ON4MAP R-17 (x2)
045145  +6  410  EM70WWW 5P1KZX JO57 (x3)
050315 -12 1635  EM70WWW DK3RW R-13
174630 -16 1597  EM70WWW R5KH KO91 (x2)
40m 
UTC    dB Audio  Message
073445  +5 2014  CQ EM70WWW
073500  -1 2014  EM70WWW DH0BRO JO62
073515  +4 2014  DH0BRO EM70WWW -20
073530  -2 2013  EM70WWW DH0BRO R-07
073545  +3 2014  DH0BRO EM70WWW -20
073600  -3 2014  EM70WWW DH0BRO R-07
073615  +4 2014  <...> EM70WWW RR73 (x3)
220215  -1 2015  EM70WWW EA3EDU JN01 (x6)
10m 
UTC    dB Audio  Message
104130 -19 1858  EM70WWW <...> RR73

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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