SK7WS — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Sweden Most frequent locator attributed to this token: JO66

Receiver-side FT8 activity involving SK7WS, decoded by SO8OO in southeastern Poland. 257 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 14 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-06-30.

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 257 FT8 messages attributed to SK7WS as the transmitting token by decoded message structure across 14 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (52%), followed by 10 m (30%) and 80 m (17%). Most decodes (60%) fell within the six-hour window 05:00-11:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

257
Messages attributed
14
UTC dates decoded
45
Active 15-min windows
-14 dB
Estimated median S/N

Bands

80m · 44 60m · 1 40m · 133 20m · 3 10m · 76
First attributed message: 2026-06-12
Last attributed message: 2026-06-30 11:04 UTC

Observed FT8 message patterns

Attributed sample
257 messages
Active dates
14 UTC dates
Estimated median S/N
-14 dB
Estimated 10th-90th percentile
-20 to -4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 110, moderate (-15 to -9 dB) 84, strong (≥ -8 dB) 63.

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 SK7WS 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 SK7WS

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
JO66 · 45 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
934 km (approx.)
Last such locator decoded
2026-06-30 10:59 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 UTCBandSK7WS S/NCounterpartCounterpart S/NMsgsCapture
07-07 08:28 20m - / -19 DL3MIB -13 / - 4 ✓ Closing fragment
07-07 08:24 20m - / -2 HB9ARK -12 / - 2 Partial capture
07-07 08:16 20m - / -5 SP6AXW -13 / - 5 ✓ Closing fragment
07-06 10:06 10m - / - DH3KR -21 / - 2 Partial capture
07-06 10:00 10m - / +1 F4PCM -9 / - 3 ✓ Closing fragment
07-02 13:16 20m - / -10 DL6CNG -8 / - 6 Partial capture
06-30 11:12 10m - / +2 IK4RVY -16 / - 2 ✓ Closing fragment
06-30 11:00 10m -24 / -2 TM2WWA +6 / - 4 ✓ Closing observed
06-30 10:58 10m -11 / - G4ZFL - / -15 2 Partial capture
06-30 10:38 10m -13 / - G6KHW - / -2 2 ✓ Closing fragment
06-30 10:36 10m -14 / - 4X1UF - / -16 3 ✓ Closing fragment
06-30 10:31 10m -7 / - DM1YS - / +1 2 ✓ Closing fragment
06-29 02:36 40m - / +1 SN1WWA -5 / - 2 Partial capture
06-29 02:33 40m -16 / - CS2WWA - / -14 2 ✓ Closing fragment
06-27 14:28 10m - / -14 LZ2EV -10 / - 2 Partial capture
06-27 11:11 10m - / -7 DF8KI 0 / - 3 ✓ Closing fragment
06-27 11:04 10m - / - DO7MAB -11 / - 2 Partial capture
06-27 11:02 10m - / -8 DO1ID +1 / - 5 ✓ Closing fragment
06-27 10:13 10m -8 / - ON5EA - / -5 2 Partial capture
06-27 10:12 10m -10 / - SP6M - / 0 3 Partial capture
06-27 10:10 10m -16 / - RM8L - / -9 2 ✓ Closing fragment
06-27 09:59 10m -10 / - UA4FEN - / -10 2 ✓ Closing fragment
06-27 09:58 10m -6 / +1 M0BEW -4 / -7 4 ✓ Full exchange observed
06-27 09:56 10m -7 / - SQ4OJD - / -4 2 ✓ Closing fragment
06-27 09:55 10m -14 / - DL3NGN - / -14 2 ✓ Closing fragment
06-27 09:54 10m -14 / - DN9RP - / -3 2 ✓ Closing fragment
06-27 09:53 10m -14 / - UB8AHK - / -21 2 Partial capture
06-27 09:50 10m -16 / - R3XBB - / -7 2 ✓ Closing fragment
06-27 09:48 10m -14 / - DK7ZT - / -9 2 ✓ Closing fragment
06-27 09:46 10m -14 / - DO9YU - / -6 2 ✓ Closing fragment
06-27 09:45 10m -10 / - 2E0OEW -16 / - 2 ✓ Closing observed
06-27 09:43 10m -14 / - UY5AO - / -6 2 ✓ Closing fragment
06-27 09:37 10m -18 / +2 F4FED -8 / -1 5 ✓ Full exchange observed
06-27 09:36 10m -16 / - R3AM - / -13 2 Partial capture
06-27 09:35 10m -20 / - PD0LK -10 / - 2 ✓ Closing observed
06-27 09:31 10m -16 / - DO1FDK - / -5 2 ✓ Closing fragment
06-27 09:26 10m -18 / - RC5F - / 0 2 ✓ Closing fragment
06-27 09:22 10m -17 / - DM1TS - / -10 3 ✓ Closing fragment
06-27 09:21 10m -18 / -23 DA2DA -5 / -9 7 ✓ Full exchange observed
06-27 09:12 10m - / - DN9SGE -16 / - 2 Partial capture
06-27 09:02 10m - / - PG9S -1 / - 3 Partial capture
06-26 14:31 10m - / +3 G0ANS -16 / - 2 ✓ Closing fragment
06-26 05:32 40m - / -14 SP5ROM -19 / - 2 ✓ Closing fragment
06-25 12:46 10m - / -1 RX3ASQ -6 / - 3 ✓ Closing fragment
06-25 06:43 40m - / - SQ8AA -8 / - 2 Partial capture
06-24 19:45 40m -16 / -23 YO4LUP -14 / -5 4 ✓ Full exchange observed
06-24 11:43 10m - / +3 EA3AGF -17 / - 2 Partial capture
06-23 17:01 40m - / +3 IQ2DB -18 / - 3 ✓ Closing fragment
06-23 17:00 40m - / - UR1DAV -18 / - 2 Partial capture
06-23 16:56 40m - / - DL6EL -8 / - 5 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
131800 -10  895  SK7WS DL6CNG R-10 (x2)
072700 -15 2073  SK7WS HB9ACA R-18
081530 -15  824  SK7WS DK7GH R-13
081630 -20 2143  SK7WS SP6AXW JO80 (x5)
082400 -11 1258  SK7WS HB9ARK R-02 (x2)
082800 -14 1109  SK7WS DL3MIB JN57 (x4)
10m 
UTC    dB Audio  Message
105930 -15 1390  CQ SK7WS JO66
105945 -20 1390  SK7WS IK1MJK JN35
110045  +8 2762  SK7WS TM2WWA -02 (x3)
110330 -24 1390  TM2WWA SK7WS RR73
110400 -22 1390  CT7ATA SK7WS -15
111245 -15 1681  SK7WS IK4RVY R+02 (x2)
112045  +6 2633  SK7WS PD0HLA RR73
100045 -11 1393  SK7WS F4PCM JN23 (x3)
100615 -21 1334  SK7WS DH3KR JO30 (x2)
40m 
UTC    dB Audio  Message
194815  -9 1237  SK7WS IU3BIX JN65
063800  -5 2446  SK7WS SQ8AA KN19 (x2)
064330 -18 1239  SK7WS HG8IT RR73
064400  -8 2439  SK7WS SQ8AA KN19
064600 -18 1172  SK7WS DK8EW R+13
053200 -17 1338  SK7WS SP5ROM R-14 (x2)
023345 -12 1337  CS2WWA SK7WS -14 (x2)
023630  -5 1173  SK7WS SN1WWA +01 (x2)
024630 -16 2320  SK7WS R2EC KO82
024830 -12 1174  SK7WS SN1WWA +04
054245 -19 2268  SK7WS DF7JS R+10
80m 
UTC    dB Audio  Message
160530 -15 1204  CQ SK7WS JO66

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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