S52DD — 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: JN75

Receiver-side FT8 activity involving S52DD, decoded by SO8OO in southeastern Poland. 922 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, across 15 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-10-29.

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 922 FT8 messages attributed to S52DD as the transmitting token by decoded message structure across 15 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (48%), followed by 40 m (40%) and 60 m (12%). Most decodes (99%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (92%); the estimated median was +2.9 dB.

Overview

922
Messages attributed
15
UTC dates decoded
66
Active 15-min windows
+2.9 dB
Estimated median S/N

Bands

80m · 444 60m · 108 40m · 370
First attributed message: 2026-06-12
Last attributed message: 2026-10-29 22:13 UTC

Observed FT8 message patterns

Attributed sample
922 messages
Active dates
15 UTC dates
Estimated median S/N
+2.9 dB
Estimated 10th-90th percentile
-7 to +10 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 11, moderate (-15 to -9 dB) 62, strong (≥ -8 dB) 849.

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 S52DD 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 S52DD

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
JN75 · 528 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
708 km (approx.)
Last such locator decoded
2026-10-29 22:13 UTC

Other locator fields attributed to this token: JN76 (8).

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 UTCBandS52DD S/NCounterpartCounterpart S/NMsgsCapture
10-29 21:42 60m -20 / - 6W/IK2HKT - / - 3 Partial capture
10-29 20:55 60m -16 / - 6W/IK2HKT - / - 2 Partial capture
10-13 20:44 40m - / -18 EA3AAY -8 / - 3 ✓ Closing fragment
10-13 20:38 40m - / - PD0RPR -2 / - 3 ✓ Closing fragment
10-13 20:28 40m - / 0 DJ7XY -10 / - 2 ✓ Closing fragment
10-13 20:26 40m - / +2 M8MFU -16 / - 3 ✓ Closing fragment
10-13 20:10 40m - / +4 PD1GO -7 / - 3 Partial capture
10-13 20:03 40m - / - F1HSY -13 / - 4 Partial capture
10-13 19:52 40m - / +10 UT4EO +5 / - 3 Partial capture
10-13 19:49 40m - / +9 F4HEA +2 / - 3 ✓ Closing fragment
10-13 19:47 40m - / - F6BHK -7 / - 2 Partial capture
10-13 19:42 40m - / - R1BDX -12 / - 2 Partial capture
10-13 19:35 40m - / - F6BHK -2 / - 2 Partial capture
10-13 18:07 40m - / - OS4K -6 / - 2 Partial capture
10-13 18:07 40m -4 / -6 SM7MDI -16 / - 3 ✓ Closing observed
10-13 18:05 40m -4 / - BG0FQU - / -12 2 Partial capture
10-13 18:04 40m -4 / -5 DA0M -12 / -10 3 Partial capture
10-13 18:03 40m -2 / -2 EW8AAC -11 / -16 3 ✓ Full exchange observed
10-13 18:02 40m +2 / -9 EU6UE -13 / -4 4 ✓ Full exchange observed
10-13 18:01 40m +10 / - EU4BE - / -15 2 ✓ Closing fragment
10-13 18:00 40m +7 / - PA8S - / -9 2 ✓ Closing fragment
10-13 17:57 40m +2 / -11 HB9RBV -12 / - 4 ✓ Closing observed
10-13 17:56 40m +4 / -9 R3DQB -6 / -9 5 ✓ Full exchange observed
10-13 17:54 40m +6 / - UB8AHK - / -18 3 Partial capture
10-13 17:53 40m +7 / - PD2MAC -9 / -10 4 ✓ Full exchange observed
10-13 17:52 40m +6 / -8 R6LQU +1 / -7 5 ✓ Full exchange observed
10-13 17:47 40m +7 / - BG0FQU - / -16 3 Partial capture
10-03 21:47 60m - / - OK1BN -22 / - 2 Partial capture
10-03 21:47 60m - / - VE1YX -10 / - 2 Partial capture
10-03 21:45 60m - / +1 DL1MST -3 / - 3 ✓ Closing fragment
10-03 21:42 60m - / -2 F4AGZ -6 / - 2 ✓ Closing fragment
10-03 21:40 60m - / - F5MXH -6 / - 3 Partial capture
10-03 21:40 60m - / - VE1YX -5 / - 6 Partial capture
10-03 21:36 80m +8 / -3 DO2DLE -9 / -7 5 ✓ Full exchange observed
10-03 21:33 80m +8 / - UN0GY - / -16 3 ✓ Closing fragment
10-03 21:32 80m +10 / -2 DF5AH -5 / +4 4 ✓ Full exchange observed
10-03 20:52 80m +7 / -2 F1HSY -8 / -8 5 ✓ Full exchange observed
10-03 20:50 80m +6 / -2 DD8BA +2 / 0 7 ✓ Full exchange observed
10-03 20:50 80m - / -4 YU65AEC +1 / - 3 ✓ Closing fragment
10-03 20:49 80m +8 / - EA5JNN - / -8 2 ✓ Closing fragment
10-03 20:48 80m - / - ON4MAP -7 / - 4 Partial capture
10-03 20:45 80m +4 / +3 DK9PH +13 / -3 6 ✓ Full exchange observed
10-03 20:45 80m +4 / - EA7Z -11 / -10 2 Partial capture
10-03 20:44 80m +6 / - DL4RE -13 / -5 3 ✓ Closing observed
10-03 20:44 80m - / -9 R3ES -5 / - 2 Partial capture
09-30 20:36 80m - / -9 F1PBZ -2 / - 3 Partial capture
09-21 18:49 80m +14 / - RI1FJZ - / -12 15 ✓ Closing fragment
09-21 18:41 80m +5 / - RI1FJZ - / - 2 Partial capture
09-21 18:31 80m 0 / - RI1FJZ - / - 7 Partial capture
09-21 17:48 80m +1 / - RI1FJZ - / -11 62 Partial capture

Recent FT8 messages decoded at SO8OO

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

60m 
UTC    dB Audio  Message
214715 -11 1013  S52DD VE1YX FN74 (x2)
214745 -23 1852  S52DD OK1BN JO70 (x2)
205415 -12 2513  <...> S52DD JN75
205515 -16 2513  <6W/IK2HKT> S52DD JN75 (x7)
221345 -12  282  <...> S52DD JN75
222300 -18 1668  S52DD ON1BH +00 (x2)
40m 
UTC    dB Audio  Message
201030  -8 1182  S52DD PD1GO JO22 (x2)
202600 -16 2107  S52DD M8MFU JO01 (x3)
202800  -9  518  S52DD DJ7XY R+00 (x2)
203000  -2 1182  S52DD PD1GO JO22
203800  -4  518  S52DD PD0RPR JO32 (x3)
204200 -16 1205  S52DD EA3ISZ JN01
204400  -7 1439  S52DD EA3AAY JN11 (x3)
80m 
UTC    dB Audio  Message
213215  +9  258  DF5AH S52DD +04
213230  +0 2224  S52DD DF5AH R-02
213245 +11  258  DF5AH S52DD RR73
213300 -10 2223  S52DD DF5AH 73
213315  +4  258  UN0GY S52DD JN75
213345 +13  258  CQ S52DD JN75
213415  +9  258  UN0GY S52DD R-16 (x2)
213515 +11  258  CQ S52DD JN75 (x2)
213600 -11  258  S52DD DO2DLE JO44
213615  +8  258  DO2DLE S52DD -07
213630  -7  258  S52DD DO2DLE R-03
213645  +8  258  DO2DLE S52DD RR73
213700 -10  258  S52DD DO2DLE 73

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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