SN4WWA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: KO04

Receiver-side FT8 activity involving SN4WWA, decoded by SO8OO in southeastern Poland. 4,534 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-29 and 2026-07-05.

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 4,534 FT8 messages attributed to SN4WWA as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (67%), followed by 40 m (23%) and 20 m (10%). Most decodes (52%) fell within the six-hour window 18:00-00:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (63%); the estimated median was -1 dB.

Overview

4,534
Messages attributed
7
UTC dates decoded
222
Active 15-min windows
-1 dB
Estimated median S/N

Bands

80m · 3,029 40m · 1,048 20m · 457
First attributed message: 2026-06-29
Last attributed message: 2026-07-05 21:15 UTC

Observed FT8 message patterns

Attributed sample
4,534 messages
Active dates
7 UTC dates
Estimated median S/N
-1 dB
Estimated 10th-90th percentile
-19 to +9 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 963, moderate (-15 to -9 dB) 735, strong (≥ -8 dB) 2,836.

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 SN4WWA 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 SN4WWA

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
KO04 · 2,226 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
510 km (approx.)
Last such locator decoded
2026-07-05 18:23 UTC

Other locator fields attributed to this token: KO02 (120) and KO03 (51).

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 UTCBandSN4WWA S/NCounterpartCounterpart S/NMsgsCapture
07-24 19:11 80m - / +6 DB100FT -4 / - 2 Partial capture
07-05 22:26 40m - / -2 PA1MVL -7 / - 6 ✓ Closing fragment
07-05 22:18 40m - / -19 SM7RHI -2 / - 2 ✓ Closing fragment
07-05 22:07 40m - / -5 UT7QF -11 / - 2 ✓ Closing fragment
07-05 21:35 40m - / +5 UA3PAB -12 / - 2 ✓ Closing fragment
07-05 21:30 40m - / - DM3RCK -13 / - 3 Partial capture
07-05 21:27 40m - / - DM3RCK -10 / - 2 Partial capture
07-05 21:07 40m - / - DL8UNO -20 / - 2 Partial capture
07-05 20:58 40m -14 / -13 PD3FJJ -7 / - 8 ✓ Closing observed
07-05 20:53 40m -14 / +4 DL3AS -10 / - 4 ✓ Full exchange observed
07-05 20:52 40m -15 / -12 MW0USK -2 / - 4 ✓ Full exchange observed
07-05 20:47 40m - / - PD3FJJ -9 / - 7 Partial capture
07-05 20:47 40m -16 / - SP4MPH - / -2 2 Partial capture
07-05 20:46 40m - / - MW0USK -4 / - 6 Partial capture
07-05 20:46 40m -15 / - SP0LPR - / -16 3 ✓ Closing fragment
07-05 20:41 40m -18 / - IW5BHU - / +9 3 Partial capture
07-05 20:40 40m -14 / - IK2YYC - / -14 2 Partial capture
07-05 20:37 40m -16 / - YB3BBF - / 0 3 Partial capture
07-05 20:37 40m - / - IW5BHU -16 / - 2 Partial capture
07-05 20:36 40m -15 / - DL8RWO - / +5 3 Partial capture
07-05 20:34 40m -12 / - SP9UPH -4 / - 3 ✓ Closing observed
07-05 20:34 40m -14 / 0 DL7APK -15 / -4 2 Partial capture
07-05 20:20 40m -18 / - MW0USK +1 / +7 10 Partial capture
07-05 20:17 40m -15 / - SQ8AA - / - 3 Partial capture
07-05 20:16 40m -16 / - TA2AI - / +6 2 ✓ Closing fragment
07-05 20:16 40m -13 / -12 IV3ABA -6 / +6 5 Partial capture
07-05 20:13 40m -16 / - F4EWK - / +4 2 Partial capture
07-05 20:12 40m -12 / - HB9DKG - / +2 2 Partial capture
07-05 20:11 40m - / - IU4BJC -9 / - 8 Partial capture
07-05 20:11 40m -14 / -3 DH6BH -8 / +10 2 Partial capture
07-05 20:03 40m -17 / - SP8FB - / - 3 Partial capture
07-05 20:02 40m -13 / - MW0USK -2 / +3 9 Partial capture
07-05 20:00 40m -15 / - DL8TV -9 / -9 4 ✓ Closing observed
07-05 19:59 40m -18 / 0 SQ7OCJ -6 / - 8 ✓ Full exchange observed
07-05 19:59 40m -16 / - SP5EJG - / 0 2 Partial capture
07-05 19:56 40m -14 / - OK1DSP - / +1 2 Partial capture
07-05 19:54 40m -16 / - PA2KV -7 / -7 4 ✓ Closing observed
07-05 19:53 40m -14 / - DK6MR - / +3 3 Partial capture
07-05 19:51 40m -14 / - YL3NU - / +10 2 Partial capture
07-05 19:50 40m - / - SP5EJG -20 / - 2 Partial capture
07-05 19:50 40m -14 / -5 YO7ARY -11 / +9 4 ✓ Full exchange observed
07-05 19:49 40m -13 / +2 LY8O -17 / 0 6 Partial capture
07-05 19:48 40m -16 / -15 DL2HAS -13 / -12 3 ✓ Full exchange observed
07-05 19:47 40m -16 / -5 F5PBG -8 / 0 4 ✓ Full exchange observed
07-05 19:43 40m -17 / +1 SP3UKK -9 / - 6 ✓ Full exchange observed
07-05 19:42 40m -14 / - SO3K -5 / - 5 ✓ Closing observed
07-05 19:41 40m -17 / - DK6MR - / +4 3 Partial capture
07-05 19:40 40m -16 / - UA3ATQ - / 0 2 Partial capture
07-05 19:39 40m -14 / - DL5DZL +2 / +1 3 ✓ Closing observed
07-05 19:38 40m - / -10 US5ZFT -1 / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
070900 -20 1543  CQ SN4WWA KO04 (x13)
191100  -3 1566  SN4WWA DB100FT +06 (x2)
40m 
UTC    dB Audio  Message
220115 -19 1935  SN4WWA TM13COL R-16
220745 -12 2000  SN4WWA UT7QF R-05 (x2)
221815  +0  339  SN4WWA SM7RHI R-19 (x2)
222045  -5 2613  SN4WWA EG5HSV 73
222115 -19 1993  SN4WWA YL3RK RR73
222215 -14  942  SN4WWA G5IAN 73
222445 -16  890  SN4WWA LA2HFA JO59
222615 -14 1995  SN4WWA PA1MVL JO22 (x6)
20m 
UTC    dB Audio  Message
182645 -14 1312  SN4WWA IK1LJO R-03 (x2)
183145  +0  906  SN4WWA DM5WGL JO62
183145 -11 2683  SN4WWA DF1IH JN57 (x3)
183545 -13 1779  SN4WWA EA6TU -07
183715  -5 2363  SN4WWA DG1RS JN49 (x3)
184045 -16 1331  SN4WWA IZ0EAC JN62 (x3)
184315  -2  743  SN4WWA A65HS -02 (x2)
10m 
UTC    dB Audio  Message
140045  -9 2229  SN4WWA F5HGT -16 (x2)
140445 -15 1982  SN4WWA IW3HKW JN65 (x2)
140715 -20 1593  SN4WWA IU5TRG JN53 (x3)
141745  -5  550  SN4WWA IK8IOO JM88
142245 -11  803  SN4WWA F4LVE JN25 (x4)
142645 -23 1983  SN4WWA F1SAA 73
142945  +7  484  SN4WWA IZ4AFM -18
143345 -21 1289  SN4WWA IZ8SVP RR73
60m 
UTC    dB Audio  Message
224745 -22 1784  SN4WWA CT1FSA IM59

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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