SA5DCE — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Sweden Most frequent locator attributed to this token: JO89

Receiver-side FT8 activity involving SA5DCE, decoded by SO8OO in southeastern Poland. 112 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, across 8 UTC dates in the available aggregate history. Observed between 2026-08-24 and 2026-09-13.

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 112 FT8 messages attributed to SA5DCE as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (48%), followed by 80 m (46%) and 160 m (6%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

112
Messages attributed
8
UTC dates decoded
17
Active 15-min windows
-8 dB
Estimated median S/N

Bands

160m · 7 80m · 51 60m · 54
First attributed message: 2026-08-24
Last attributed message: 2026-09-13 21:58 UTC

Observed FT8 message patterns

Attributed sample
112 messages
Active dates
8 UTC dates
Estimated median S/N
-8 dB
Estimated 10th-90th percentile
-19 to -2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 24, moderate (-15 to -9 dB) 31, strong (≥ -8 dB) 57.

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 SA5DCE 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 SA5DCE

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
JO89 · 50 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,106 km (approx.)
Last such locator decoded
2026-09-13 21:58 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 UTCBandSA5DCE S/NCounterpartCounterpart S/NMsgsCapture
09-13 21:54 60m -16 / - LY7Z - / - 2 Partial capture
09-13 21:52 60m -19 / -25 EH1SDC -12 / - 4 ✓ Closing observed
09-13 20:59 60m -20 / -11 DG6VC -7 / - 5 ✓ Closing observed
09-13 20:58 60m - / -14 EC3A -22 / - 2 ✓ Closing fragment
09-13 20:55 80m -16 / +1 PI4DX +2 / 0 4 ✓ Full exchange observed
09-12 19:23 60m -12 / 0 LY8O +2 / - 3 ✓ Closing observed
09-08 21:55 160m -11 / - R2EA - / - 3 Partial capture
09-08 21:38 60m -14 / -14 G3UHU -2 / -1 5 ✓ Full exchange observed
09-08 21:35 60m -8 / -10 OE8DDX -2 / +2 5 ✓ Full exchange observed
09-08 21:23 80m -16 / -11 Z62NS +10 / -8 7 ✓ Full exchange observed
09-08 21:14 80m - / -10 OH2NAG +5 / - 4 ✓ Closing fragment
09-03 21:42 80m -9 / - EA8UP -3 / 0 6 ✓ Closing observed
09-02 21:43 60m - / - DL1MST -7 / - 3 Partial capture
09-02 21:43 60m -14 / -5 F5RAV -9 / -12 5 ✓ Full exchange observed
09-02 21:40 60m -18 / -1 PC2F -11 / - 7 ✓ Closing observed
09-02 21:40 60m -11 / - G3DXC -7 / -3 4 Partial capture
09-02 21:39 60m - / - F5RAV -9 / - 2 Partial capture
09-02 21:38 60m -24 / +1 SP5MXZ +5 / - 5 ✓ Closing observed
09-02 21:38 60m - / -1 DF7EF +19 / - 4 ✓ Closing fragment
09-02 21:36 60m -10 / - TF8KW -14 / 0 3 ✓ Closing observed
09-02 21:33 80m - / -16 UN7LZ -6 / - 3 ✓ Closing fragment
09-02 21:27 80m -9 / - <...> - / -13 2 Partial capture
09-02 21:19 80m -2 / - V51WH - / - 4 Partial capture
09-01 21:05 60m -16 / - 4O7CC - / -16 2 Partial capture
09-01 21:01 60m -16 / -9 9A4ZM -5 / +8 7 ✓ Full exchange observed
09-01 21:01 60m -18 / -10 OT4R -10 / +3 5 ✓ Full exchange observed
09-01 20:59 60m -17 / -16 OM1AGE -8 / -6 6 ✓ Full exchange observed
09-01 20:58 60m -14 / -9 G3WGC +2 / - 4 ✓ Full exchange observed
09-01 20:54 60m -18 / -15 E74K +10 / +3 4 ✓ Full exchange observed
09-01 20:50 160m - / - DK7TX -4 / - 3 Partial capture
08-30 22:38 160m - / -18 UA3ZUX +4 / - 3 ✓ Closing fragment
08-30 22:25 160m - / -24 SA0AQT -16 / - 2 ✓ Closing fragment
08-24 23:11 160m -20 / -9 DK2BJ -6 / - 3 ✓ Closing observed
08-24 23:08 160m -17 / - M7CWF - / - 2 Partial capture
08-24 23:01 80m -4 / - CE3SPR - / - 5 Partial capture
08-24 22:59 80m -4 / - LU5YF - / -20 5 Partial capture
08-24 22:55 80m -5 / - LW2DO - / - 7 Partial capture
08-24 22:51 80m 0 / -1 9A4ZM +4 / 0 6 ✓ Full exchange observed
08-24 22:50 80m -6 / - DK8HC -3 / -6 6 Partial capture
08-24 22:50 80m 0 / -4 DO9BAU -2 / +5 8 ✓ Full exchange observed
08-24 22:50 80m -2 / -9 UA4FKT +2 / +10 6 ✓ Full exchange observed
08-24 22:48 80m -4 / - KP4AA - / -15 4 ✓ Closing fragment
08-24 22:45 80m -7 / - LU5YF - / - 2 Partial capture
08-24 22:44 80m -6 / -21 CT2HEX -9 / -14 9 Partial capture
08-24 22:40 60m -6 / - OH1LA - / -11 2 ✓ Closing fragment
08-24 22:39 60m -6 / +3 ON7KEI -16 / -1 7 ✓ Full exchange observed
08-24 22:38 60m -5 / - CE2SV - / -2 2 ✓ Closing fragment
08-24 22:36 60m -2 / +1 DL6MRM -8 / +8 5 ✓ Full exchange observed
08-24 22:35 60m -6 / -6 VE1YX -22 / -2 4 ✓ Full exchange observed
08-24 22:34 60m -6 / -1 ER1CW -10 / -2 5 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

60m 
UTC    dB Audio  Message
205915 -20 1854  SA5DCE EC3A RR73
205945  -5 1490  SA5DCE DG6VC JN39 (x3)
210100 -20 1489  DG6VC SA5DCE RR73
210115 -10 1490  SA5DCE DG6VC 73
215015 -11 1224  PP7GB SA5DCE JO89
215245 -19 1224  EH1SDC SA5DCE JO89
215330 -14 1093  SA5DCE EH1SDC -25 (x2)
215415 -19 1203  EH1SDC SA5DCE 73
215445 -17 1267  LY7Z SA5DCE JO89 (x2)
215530 -24 1544  SA5DCE DH1HF JO30
215845 -21 2172  VO1HP SA5DCE JO89
80m 
UTC    dB Audio  Message
211430  +9  699  SA5DCE OH2NAG -10 (x4)
212330 +11  913  SA5DCE Z62NS -11 (x4)
212515  -9  911  Z62NS SA5DCE R-08
212530  +8  913  SA5DCE Z62NS RR73
212545 -22  912  Z62NS SA5DCE 73
205530 -16 2369  PI4DX SA5DCE JO89
205545  +3 2370  SA5DCE PI4DX +01
205600 -16 2369  PI4DX SA5DCE R+00
205615  +1 2370  SA5DCE PI4DX RR73
160m 
UTC    dB Audio  Message
231130  -4 1390  SA5DCE DK2BJ RR73
231145 -20 1390  DK2BJ SA5DCE 73
222530 -16 2247  SA5DCE SA0AQT -24 (x2)
223815  -1 2696  SA5DCE UA3ZUX KO90 (x3)
224000 -23 2095  CQ SA5DCE JO89                        a1
204500 -17 2290  SA5DCE GM8IEM IO78
205015  -4 1267  SA5DCE DK7TX JO31 (x3)
215545 -10 2357  R2EA SA5DCE JO89 (x3)

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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