S53X — 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: JN65

Receiver-side FT8 activity involving S53X, decoded by SO8OO in southeastern Poland. 633 FT8 messages attributed to this token as transmitter, on 80m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-29 and 2026-08-30.

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 633 FT8 messages attributed to S53X as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (100%). In this small sample, the estimated median decoder S/N was -3 dB; no usual signal pattern is inferred.

Overview

633
Messages attributed
2
UTC dates decoded
36
Active 15-min windows
-3 dB
Estimated median S/N

Bands

80m · 633
First attributed message: 2026-08-29
Last attributed message: 2026-08-30 06:35 UTC

Observed FT8 message patterns

Attributed sample
633 messages
Active dates
2 UTC dates
Estimated median S/N
-3 dB
Estimated 10th-90th percentile
-9.2 to +7 dB
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 76, strong (≥ -8 dB) 548.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with S53X 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 S53X

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
JN65 · 409 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
821 km (approx.)
Last such locator decoded
2026-08-30 06:34 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 UTCBandS53X S/NCounterpartCounterpart S/NMsgsCapture
08-30 06:33 80m -9 / - ON7DE - / -18 4 ✓ Closing fragment
08-30 06:31 80m +1 / -12 DO2BBC -19 / -16 4 ✓ Full exchange observed
08-30 06:28 80m +2 / +3 OZ1KWJ -10 / -5 4 ✓ Full exchange observed
08-30 06:23 80m -1 / - HB9EKJ - / -6 3 ✓ Closing fragment
08-30 06:22 80m +1 / -17 DO2BBC -16 / - 7 Partial capture
08-30 06:20 80m -4 / - IZ2EWN -19 / -1 3 ✓ Closing observed
08-30 06:17 80m -6 / -6 DM2BPG -2 / -9 4 ✓ Full exchange observed
08-30 06:15 80m -2 / - DO1HFS - / -10 2 Partial capture
08-30 06:11 80m -8 / -13 PA3CPS -10 / -5 8 ✓ Full exchange observed
08-30 06:09 80m -4 / +5 OK1NZ -2 / +1 4 ✓ Full exchange observed
08-30 06:07 80m -3 / - DK6AH - / -6 3 ✓ Closing fragment
08-30 06:04 80m -4 / -17 DF9DX -10 / +2 7 ✓ Full exchange observed
08-30 06:00 80m -6 / -11 DF7JS -11 / -11 3 Partial capture
08-30 05:59 80m -9 / -1 DK6WH -15 / - 3 ✓ Closing observed
08-30 05:55 80m -3 / -8 DO2SHJ -10 / +2 4 ✓ Full exchange observed
08-30 05:54 80m -3 / -11 DO5HOK -6 / -11 4 ✓ Full exchange observed
08-30 05:48 80m -6 / - F4JBR - / -4 3 Partial capture
08-30 05:42 80m -5 / -18 OK1JMB -6 / - 5 ✓ Full exchange observed
08-30 05:40 80m -6 / - F4FQY - / -1 3 ✓ Closing fragment
08-30 05:35 80m -3 / - ON4DKS - / -16 3 ✓ Closing fragment
08-30 05:31 80m -5 / - DO9YU - / -6 3 ✓ Closing fragment
08-30 05:29 80m -4 / +4 HA3FIC -6 / - 4 ✓ Closing observed
08-30 05:26 80m -4 / - DO1RWM -17 / -13 3 Partial capture
08-30 05:24 80m 0 / -2 F6FTB -15 / +1 5 ✓ Full exchange observed
08-30 05:21 80m -7 / 0 F5PAC -14 / -1 4 ✓ Full exchange observed
08-30 05:19 80m -2 / - F5LMJ - / -21 2 ✓ Closing fragment
08-30 05:16 80m -6 / - G0BLB -23 / -8 5 ✓ Closing observed
08-30 05:13 80m -6 / -11 IU7SQV -23 / -11 5 ✓ Full exchange observed
08-30 05:08 80m -3 / -4 SP8BJU +2 / -7 8 ✓ Full exchange observed
08-30 05:06 80m -2 / - DH6DAO - / 0 2 ✓ Closing fragment
08-30 05:05 80m -2 / -24 DD8BA -12 / - 6 ✓ Closing observed
08-30 05:02 80m -4 / - F1PSX -21 / -13 3 ✓ Closing observed
08-30 05:00 80m -2 / -14 SQ7LQT +5 / - 5 ✓ Closing observed
08-30 04:59 80m - / - <...> -4 / - 3 Partial capture
08-30 04:56 80m -4 / - G0OYQ -4 / -7 3 Partial capture
08-30 04:55 80m -6 / -8 DJ2PW -9 / +1 4 ✓ Full exchange observed
08-30 04:54 80m -4 / +6 DO3VE -2 / -9 4 ✓ Full exchange observed
08-30 04:52 80m -3 / -11 DO9MDI -16 / -25 4 Partial capture
08-30 04:51 80m -2 / +1 ON5HE -13 / 0 5 ✓ Full exchange observed
08-30 04:49 80m -1 / - C31KC - / -5 3 ✓ Closing fragment
08-30 04:47 80m +2 / - ZY7F - / -17 2 ✓ Closing fragment
08-30 04:45 80m -3 / - MW7TTA - / -15 3 ✓ Closing fragment
08-30 04:45 80m -9 / - DO9MDI -24 / -25 2 Partial capture
08-30 04:42 80m -4 / +6 DO2NM -8 / -4 4 ✓ Full exchange observed
08-30 04:40 80m -4 / -19 UT1XU -7 / -21 5 ✓ Full exchange observed
08-30 04:36 80m -4 / - PT7YV - / -5 2 ✓ Closing fragment
08-30 04:35 80m -1 / - SP2EUI -7 / -17 2 Partial capture
08-30 04:32 80m 0 / - F4LNM - / -5 2 ✓ Closing fragment
08-30 04:31 80m -2 / - G7ODN - / -14 2 Partial capture
08-30 04:28 80m -2 / - IT9GQO - / -12 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
062715 -11 1344  S53X DO2BBC -17
062715  +2 1089  DO2BBC S53X JN65
062845  +2 1089  OZ1KWJ S53X JN65
062900  -8  734  S53X OZ1KWJ +03
062915  +1 1089  OZ1KWJ S53X R-05
062930 -12  733  S53X OZ1KWJ RR73
063100  +0 1089  DO2BBC S53X JN65
063115 -20 1344  S53X DO2BBC -12
063130  +2 1089  DO2BBC S53X R-16
063145 -18 1344  S53X DO2BBC RR73
063300 -14 1089  ON7DE S53X JN65 (x2)
063400 -13 1089  CQ S53X JN65
063430 -10 1089  ON7DE S53X R-18 (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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