CU2CN — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Azores Most frequent locator attributed to this token: HM77

Receiver-side FT8 activity involving CU2CN, decoded by SO8OO in southeastern Poland. 78 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-07-17 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 78 FT8 messages attributed to CU2CN as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (64%), followed by 20 m (36%). In this small sample, the estimated median decoder S/N was -11 dB; no usual signal pattern is inferred.

Overview

78
Messages attributed
2
UTC dates decoded
10
Active 15-min windows
-11 dB
Estimated median S/N

Bands

40m · 50 20m · 28
First attributed message: 2026-07-17
Last attributed message: 2026-08-30 22:04 UTC

Observed FT8 message patterns

Attributed sample
78 messages
Active dates
2 UTC dates
Estimated median S/N
-11 dB
Estimated 10th-90th percentile
-23 to -8 dB
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 28, moderate (-15 to -9 dB) 31, strong (≥ -8 dB) 19.

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 CU2CN in decoded directed-looking exchanges:

Most frequent locator attributed to CU2CN

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
HM77 · 24 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
3,932 km (approx.)
Last such locator decoded
2026-08-30 22:03 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 UTCBandCU2CN S/NCounterpartCounterpart S/NMsgsCapture
08-30 22:03 40m -6 / -9 ES5MG +4 / -6 3 Partial capture
08-30 22:03 40m - / -18 R7GA +3 / - 5 ✓ Closing fragment
08-30 21:56 40m -8 / -10 SP3SXU -6 / -8 5 ✓ Full exchange observed
08-30 21:54 40m -7 / - IN3IZQ - / -1 2 ✓ Closing fragment
08-30 21:48 40m - / -11 OK1HEH -7 / - 3 ✓ Closing fragment
08-30 21:48 40m -8 / - EA3AAY -9 / +9 2 ✓ Closing observed
08-30 21:46 40m - / -6 EA5HM -9 / - 4 ✓ Closing fragment
08-30 21:45 40m -12 / +2 PD0PKT -6 / -8 4 ✓ Full exchange observed
08-30 21:43 40m -10 / -9 DD8HG -16 / -20 7 ✓ Full exchange observed
08-30 21:41 40m -10 / -13 RN6HK +8 / -5 8 ✓ Full exchange observed
08-30 21:40 40m -10 / - OM3PR - / -13 2 ✓ Closing fragment
08-30 21:38 40m -8 / -8 PA3GDL +3 / +9 4 ✓ Full exchange observed
08-30 21:37 40m -11 / -1 IK2ZJR -1 / +2 4 ✓ Full exchange observed
08-30 21:36 40m -10 / - IZ4ORF - / +8 2 ✓ Closing fragment
08-30 21:34 40m -12 / - PD0MNO - / +5 2 Partial capture
08-30 21:26 40m -9 / - DL3JHK - / -7 12 Partial capture
08-30 21:22 40m - / - YL3MM 0 / - 2 Partial capture
08-30 21:20 40m - / - DL3JHK -4 / - 5 Partial capture
08-30 21:10 40m - / -9 RW3DDZ -9 / - 5 ✓ Closing fragment
07-17 21:12 20m - / - DL1R -3 / - 8 Partial capture
07-17 21:12 20m - / - RD6OZ -20 / - 3 ✓ Closing fragment
07-17 21:00 20m -22 / - DL8MRE - / -7 2 ✓ Closing fragment
07-17 20:50 20m -20 / -19 ER1BF -14 / -11 7 ✓ Full exchange observed
07-17 20:46 20m -20 / - SQ7OCJ - / -11 2 ✓ Closing fragment
07-17 20:34 20m -23 / - ON1JP - / -11 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
215800 -14  852  CU2CN SN40KZE R+00
215845 -12 2547  SP2DTW CU2CN R-01
215945 -10 2547  CQ CU2CN HM77
220145  -9 2547  TA2EE CU2CN RR73
220215 -11 2547  CQ CU2CN HM77 (x2)
220300  +6 2546  CU2CN R7GA LN14
220315  -6 2547  CQ CU2CN HM77
220330  +5 2546  CU2CN R7GA LN14
220330  +8 2343  CU2CN ES5MG KO38
220415  -6 2547  ES5MG CU2CN -06
220430  +0 2547  CU2CN ES5MG R-09
220530  +5 2546  CU2CN R7GA LN14 (x3)
20m 
UTC    dB Audio  Message
211330 -19 1599  CU2CN RD6OZ KN98
211330  -5 2721  CU2CN DL1R JN58 (x2)
211430 -18 1598  CU2CN RD6OZ 73
211430  -4 2721  CU2CN DL1R JN58 (x4)
212000 -22 1598  CU2CN F4MUD -07
212415 -21 1598  PY2ATI CU2CN -11
214115 -23 1599  CQ CU2CN HM77 (x3)
214615 -21 1598  PD4HC CU2CN -06
214845 -22 1599  CQ CU2CN HM77

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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