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. 1,521 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 18 UTC dates in the available aggregate history. Observed between 2026-09-02 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 1,521 FT8 messages attributed to EM70WWW as the transmitting token by decoded message structure across 18 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (50%), followed by 40 m (48%) and 160 m (3%). Decoded messages were spread across the UTC day; the busiest six-hour window (18:00-00:00 UTC) held 34% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (83%); the estimated median was +1.1 dB.

Overview

1,521
Messages attributed
18
UTC dates decoded
140
Active 15-min windows
+1.1 dB
Estimated median S/N

Bands

160m · 39 80m · 755 40m · 727
First attributed message: 2026-09-02
Last attributed message: 2026-09-20 07:37 UTC

Observed FT8 message patterns

Attributed sample
1,521 messages
Active dates
18 UTC dates
Estimated median S/N
+1.1 dB
Estimated 10th-90th percentile
-11 to +11 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 67, moderate (-15 to -9 dB) 185, strong (≥ -8 dB) 1,269.

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
09-20 07:36 40m +5 / - <...> - / - 3 ✓ Closing fragment
09-20 07:34 40m +4 / -7 DH0BRO -2 / -20 6 Partial capture
09-20 07:29 40m +2 / - UT2UB - / +1 2 Partial capture
09-20 07:15 40m -4 / - <...> -7 / - 2 ✓ Closing fragment
09-20 07:13 40m -3 / +3 DL1BFR -4 / -9 6 Partial capture
09-19 18:33 40m - / - RC6OG -1 / - 2 Partial capture
09-19 18:32 40m - / - R4FJ -11 / - 2 Partial capture
09-19 11:24 40m - / -6 DK2FM 0 / - 2 Partial capture
09-18 22:09 80m - / +4 RK9UE -4 / - 2 Partial capture
09-18 20:25 80m - / -21 R7OQ -8 / - 3 Partial capture
09-18 19:39 80m - / -12 DO2ANW -4 / - 2 Partial capture
09-18 19:26 80m - / -10 DO2ANW +2 / - 15 Partial capture
09-18 19:24 80m - / 0 DD8BA -4 / - 2 Partial capture
09-18 19:16 80m - / -9 DO8JB -13 / - 12 Partial capture
09-18 19:15 80m - / -15 R7OQ -9 / - 7 Partial capture
09-18 19:13 80m - / +1 DL3RL +4 / - 2 Partial capture
09-18 19:11 40m -5 / - 9H4JX - / -16 5 ✓ Closing fragment
09-18 19:07 40m -1 / - <...> +1 / - 3 ✓ Closing fragment
09-18 19:05 80m - / -9 RY3F 0 / - 4 Partial capture
09-18 18:57 80m +7 / - <...> +2 / - 6 ✓ Closing fragment
09-18 18:56 80m +12 / -7 OK1DBE +4 / -15 3 Partial capture
09-18 18:30 160m - / - RO7A -4 / - 2 Partial capture
09-18 04:13 80m - / - DO2ZZ -15 / - 2 Partial capture
09-18 04:10 160m - / -15 OK2BUZ +13 / - 5 Partial capture
09-18 04:04 80m +8 / - DL8TV - / -7 2 Partial capture
09-18 04:00 80m +11 / - UT2UB -16 / -4 2 Partial capture
09-18 03:57 80m +6 / - <...> +13 / - 11 ✓ Closing fragment
09-18 03:56 80m +7 / - SP9OJ - / - 6 Partial capture
09-18 03:52 80m +1 / -7 SP7ENZ +10 / -11 2 Partial capture
09-18 03:50 80m +7 / - <...> 0 / - 6 ✓ Closing fragment
09-18 03:44 160m - / -11 OM3SX +4 / - 3 Partial capture
09-18 03:43 80m +9 / - <...> 0 / - 5 ✓ Closing fragment
09-18 03:38 160m +6 / - <...> -11 / - 5 ✓ Closing fragment
09-18 03:34 160m - / -14 DL8TV -12 / - 2 Partial capture
09-18 03:31 160m +2 / - <...> +2 / - 8 ✓ Closing fragment
09-18 03:27 80m +6 / - <...> +5 / - 3 ✓ Closing fragment
09-18 03:25 80m +14 / - ES2DR - / -17 5 ✓ Closing fragment
09-17 15:18 40m +12 / -10 E77TT -9 / -14 2 Partial capture
09-17 11:56 40m +4 / - <...> -16 / - 2 ✓ Closing fragment
09-17 11:55 40m +5 / -4 UR5WCA -16 / -5 3 Partial capture
09-17 03:58 80m - / - SP8EEX -2 / - 2 Partial capture
09-17 03:49 80m - / - SP8EEX -5 / - 8 Partial capture
09-17 03:44 40m - / -2 R1BMY -7 / - 2 Partial capture
09-17 02:42 80m - / - SP2FWC +10 / - 2 Partial capture
09-17 01:17 80m - / - DO1OAS +1 / - 11 Partial capture
09-16 20:35 40m -10 / - G4XWR - / -14 5 Partial capture
09-16 19:02 80m - / -8 UT7NY +2 / - 2 Partial capture
09-16 05:06 80m - / +6 F1TXI -12 / - 4 Partial capture
09-16 04:54 80m - / -15 DO1ID +6 / - 4 Partial capture
09-16 04:49 80m - / -2 DO1ID +8 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
073015  +2 2014  UT2UB EM70WWW +01
073045  +5 2014  <...> EM70WWW RR73
073315  +2 2014  CQ EM70WWW (x3)
073430  -3 2014  EM70WWW DH0BRO JO62
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)
160m 
UTC    dB Audio  Message
033930  +0  991  SP5C EM70WWW R-19
033945 -11 1920  EM70WWW <...> RR73
034000  +3  991  <...> EM70WWW 73
034415  +5  237  EM70WWW OM3SX KN08 (x3)
041045 +18 2196  EM70WWW OK2BUZ -15 (x5)
183030  -4 2198  EM70WWW RO7A KN95 (x2)
001915 -14 1930  EM70WWW F1PBZ -06
002200  +6 1085  RA8AO EM70WWW -12
80m 
UTC    dB Audio  Message
193045  +1  470  EM70WWW DO2ANW JN57 (x9)
202515 -12 1402  EM70WWW R7OQ KN98 (x3)
215600  -9  462  EM70WWW RK9UE NO35 (x3)
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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