S57SWR — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Slovenia Most frequent locator attributed to this token: JN76

Receiver-side FT8 activity involving S57SWR, decoded by SO8OO in southeastern Poland. 961 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 21 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-22.

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 961 FT8 messages attributed to S57SWR as the transmitting token by decoded message structure across 21 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (51%), followed by 40 m (34%) and 20 m (12%). Most decodes (86%) fell within the six-hour window 02:00-08:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (62%); the estimated median was -3.6 dB.

Overview

961
Messages attributed
21
UTC dates decoded
100
Active 15-min windows
-3.6 dB
Estimated median S/N

Bands

80m · 491 40m · 322 20m · 111 10m · 37
First attributed message: 2026-06-07
Last attributed message: 2026-10-22 02:31 UTC

Observed FT8 message patterns

Attributed sample
961 messages
Active dates
21 UTC dates
Estimated median S/N
-3.6 dB
Estimated 10th-90th percentile
-18 to +11 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 150, moderate (-15 to -9 dB) 216, strong (≥ -8 dB) 595.

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 S57SWR 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 S57SWR

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
JN76 · 442 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
631 km (approx.)
Last such locator decoded
2026-10-22 02:31 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 UTCBandS57SWR S/NCounterpartCounterpart S/NMsgsCapture
10-22 03:23 40m - / -24 EK1KE -14 / - 2 Partial capture
10-22 02:27 80m +22 / - VE2LOA - / -25 3 Partial capture
10-22 02:26 80m +22 / - DF4WQ +9 / -1 3 ✓ Full exchange observed
10-22 02:20 80m +22 / -13 RA3TSK 0 / -13 5 ✓ Full exchange observed
10-22 02:19 80m +24 / - W1HS - / - 2 Partial capture
10-22 02:16 80m +20 / -4 AB4SF -13 / -23 6 ✓ Full exchange observed
10-22 02:11 80m +20 / -17 R4FJ -6 / -5 9 ✓ Full exchange observed
10-22 02:10 80m +18 / -6 IU3WIX -11 / -13 5 ✓ Full exchange observed
10-22 02:10 80m +19 / - ON4MAP +2 / -6 7 ✓ Full exchange observed
10-22 02:08 80m +22 / -11 RA6OY +17 / -3 5 ✓ Full exchange observed
10-22 02:05 80m +14 / 0 SN0EG +13 / +10 5 ✓ Full exchange observed
10-22 02:04 80m +18 / +1 EA2DYB +4 / +1 5 ✓ Full exchange observed
10-09 04:41 40m - / -1 F4FPR -15 / - 3 ✓ Closing fragment
10-09 04:40 40m - / - EA5IT -8 / - 2 ✓ Closing fragment
10-09 04:38 40m - / 0 YO4SX -7 / - 3 ✓ Closing fragment
10-08 04:38 40m - / -8 EK/RX3DPK -12 / - 2 Partial capture
10-08 04:34 40m - / -10 EK/RX3DPK -15 / - 3 Partial capture
10-08 04:30 40m - / -5 EK/RX3DPK -5 / - 3 Partial capture
10-08 04:26 40m - / -5 EK/RX3DPK -10 / - 2 Partial capture
10-08 04:15 40m -12 / -12 EK/RX3DPK -8 / - 3 Partial capture
10-08 04:13 40m -16 / - TT1GD - / -7 3 Partial capture
10-08 04:08 40m - / -9 EK/RX3DPK -12 / - 3 Partial capture
10-08 03:20 80m +13 / - SQ4PKO -24 / -5 3 ✓ Closing observed
10-08 03:18 80m +6 / +10 DO1OAS -3 / +1 5 ✓ Full exchange observed
10-08 03:15 80m +11 / - UA4WJ - / -20 2 Partial capture
10-08 03:11 80m +12 / +3 DJ7XY -17 / -18 5 ✓ Full exchange observed
10-08 03:08 80m +7 / - F6FHZ - / -23 3 ✓ Closing fragment
10-08 03:05 80m +11 / +9 PC1JB -3 / - 4 ✓ Closing observed
10-08 03:04 80m +9 / -8 RK4CH -14 / -15 5 ✓ Full exchange observed
10-08 03:01 80m +12 / +7 F6FHZ -24 / -23 4 Partial capture
10-08 02:59 80m +10 / -3 CT2GQA -22 / -12 4 ✓ Full exchange observed
10-08 02:57 80m +12 / - DO2AY -8 / -3 3 Partial capture
10-08 02:55 80m +8 / +3 ON4MAP -12 / -10 5 ✓ Full exchange observed
10-08 02:55 80m +11 / - ES2AJ +9 / +8 4 ✓ Full exchange observed
10-08 02:50 80m - / +4 ES2AJ +6 / - 5 Partial capture
10-08 02:50 80m +9 / -8 UX0CZ -3 / -3 7 ✓ Full exchange observed
10-08 02:50 80m +4 / - R4FDD -16 / -14 4 ✓ Closing observed
09-24 15:28 80m -10 / - RX6LG - / - 3 Partial capture
09-24 15:20 40m - / - 9A3DVE -12 / - 2 ✓ Closing fragment
09-24 15:18 40m -11 / - HB9ELE +3 / - 2 ✓ Closing observed
09-24 14:40 10m - / -14 EA8UP -14 / - 2 ✓ Closing fragment
09-14 04:49 40m +10 / - K0HB - / - 2 Partial capture
09-14 04:29 40m -15 / - N4YYV - / -18 5 ✓ Closing fragment
09-14 04:27 40m -22 / - N1KV - / -10 2 ✓ Closing fragment
09-14 04:25 40m - / -5 LZ1VVD -3 / - 3 ✓ Closing fragment
09-14 04:14 40m - / -13 SV9MBH -20 / - 2 Partial capture
09-14 04:04 80m 0 / -4 DA6OOM -2 / -12 5 ✓ Full exchange observed
09-14 04:03 80m -2 / -12 YO8XFU +6 / -2 5 ✓ Full exchange observed
09-14 03:59 80m +9 / - F6FHZ - / -25 3 Partial capture
09-14 03:57 80m +17 / -17 W4PSK -18 / -13 5 ✓ 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
043830 -12  826  S57SWR EK/RX3DPK -08 (x2)
043445  -6 1996  S57SWR YO4SX KN44 (x4)
044045  -6  261  S57SWR EA5IT IM99
044145 -10 1913  S57SWR F4FPR IN88
044145 -10  262  S57SWR EA5IT 73
044245 -18 1913  S57SWR F4FPR R-01 (x2)
031045 -24 1818  S57SWR CO2OQ -13
032345 -14 1329  S57SWR EK1KE -24 (x2)
032515 -13 2458  S57SWR KI8JP RR73
80m 
UTC    dB Audio  Message
022045  +0 1317  S57SWR RA3TSK R-13
022100 +22 1314  RA3TSK S57SWR RR73
022115  -1 1317  S57SWR RA3TSK 73
022430 +23 1314  CQ S57SWR JN76 (x2)
022600 +17 1744  DF4WQ S57SWR -01
022615  +9 1501  S57SWR DF4WQ R+26
022630 +26 1744  DF4WQ S57SWR RR73
022700 +23 1744  VE2LOA S57SWR -25 (x3)
022900 +23 1744  CQ S57SWR JN76 (x3)
023115 +20 1701  MM0HVU S57SWR JN76
10m 
UTC    dB Audio  Message
144030 -13 1307  S57SWR EA8UP -14 (x2)
20m 
UTC    dB Audio  Message
075915 -15 1007  MI0NWA S57SWR 73
080115  -8 1007  F1RCQ S57SWR -21 (x2)
080345 -10 1812  R50RKZ S57SWR R+09 (x2)
080545 -24 1649  DL3BLA S57SWR R-04 (x2)
080730 -11 2529  E75W S57SWR JN76
080745 -10 2530  S57SWR E75W -10
080800 -14 2530  E75W S57SWR JN76
080815 -14 2530  S57SWR E75W -14
080915 -10 1846  S57SWR DK4BP -07
080930 -11 1845  DK4BP S57SWR R+00
070200 -21 1326  S57SWR EK1KE -10 (x2)

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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