F4CUO — 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: France Most frequent locator attributed to this token: JN03

Receiver-side FT8 activity involving F4CUO, decoded by SO8OO in southeastern Poland. 94 FT8 messages attributed to this token as transmitter, on 80m, 40m, 10m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-03.

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 94 FT8 messages attributed to F4CUO as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (59%), followed by 40 m (33%) and 80 m (9%). Most decodes (76%) fell within the six-hour window 13:00-19:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

94
Messages attributed
8
UTC dates decoded
18
Active 15-min windows
-9 dB
Estimated median S/N

Bands

80m · 8 40m · 31 10m · 55
First attributed message: 2026-06-07
Last attributed message: 2026-10-03 19:09 UTC

Observed FT8 message patterns

Attributed sample
94 messages
Active dates
8 UTC dates
Estimated median S/N
-9 dB
Estimated 10th-90th percentile
-14 to -4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 46, strong (≥ -8 dB) 42.

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 F4CUO 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 F4CUO

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
JN03 · 63 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,732 km (approx.)
Last such locator decoded
2026-10-03 19:07 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 UTCBandF4CUO S/NCounterpartCounterpart S/NMsgsCapture
10-03 19:08 40m -6 / - IZ8PPI - / -7 2 ✓ Closing fragment
10-03 19:07 40m -5 / - LA5ZUA - / -13 3 ✓ Closing fragment
10-01 17:37 80m -11 / -8 DL7ACA +2 / -6 4 ✓ Full exchange observed
10-01 17:35 80m -12 / -23 UA4FKT 0 / -11 6 ✓ Full exchange observed
10-01 17:33 80m -13 / -3 G8AJM -1 / - 5 ✓ Closing observed
08-21 12:02 10m -6 / - HA1TJ - / -7 3 ✓ Closing fragment
08-21 11:57 10m -6 / - TN8GD - / - 2 ✓ Closing fragment
08-20 14:12 10m -12 / - <...> - / - 3 Partial capture
08-20 13:59 10m -8 / - YF1CAR - / -6 4 Partial capture
08-20 13:55 10m -9 / - YF1CAR - / - 3 Partial capture
08-20 13:49 10m -12 / - 4X4ZP - / -18 2 Partial capture
08-20 13:44 10m -8 / - YF1CAR - / - 3 Partial capture
08-20 13:42 10m -5 / - IS0AFM - / +2 3 Partial capture
08-20 13:34 10m -8 / - YF1CAR - / - 7 Partial capture
08-20 13:24 10m -11 / - ZS6KBS - / - 2 Partial capture
08-20 13:23 10m -12 / - PU4AFG - / - 2 Partial capture
08-20 13:16 10m -13 / - UT3UW - / -22 3 ✓ Closing fragment
08-20 13:06 10m -12 / - YD0ATZ - / - 2 Partial capture
08-20 12:52 10m -14 / - OK2PHI - / -15 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
190315  -3 2313  EX7CQ F4CUO R-15
190715  +0 2313  LA5ZUA F4CUO JN03 (x3)
190845  -4 2313  IZ8PPI F4CUO R-07 (x2)
80m 
UTC    dB Audio  Message
173415  +0 1922  F4CUO G8AJM -03
173430 -15 2277  A41DV F4CUO JN03
173445  +0 1922  F4CUO G8AJM -03 (x2)
173530  -9 2276  G8AJM F4CUO 73
173545  +1 2276  F4CUO UA4FKT LO23
173600 -11 2276  UA4FKT F4CUO -11
173615  +1 2276  F4CUO UA4FKT LO23
173630 -13 2276  UA4FKT F4CUO -12
173645  -1 2276  F4CUO UA4FKT R-23
173700 -11 2276  UA4FKT F4CUO RR73
173730 -13 2276  DL7ACA F4CUO -06
173745  -1 2277  F4CUO DL7ACA R-08
173800  -9 2277  DL7ACA F4CUO RR73
173815  +4 2277  F4CUO DL7ACA 73
10m 
UTC    dB Audio  Message
135545 -10 2417  YF1CAR F4CUO JN03 (x6)
141200 -12 2416  <...> F4CUO JN03 (x3)
141645 -17 2417  YF1CAR F4CUO JN03
115715  -9 2419  TN8GD F4CUO JN03 (x2)
120245  -8 2419  HA1TJ F4CUO JN03 (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.

CW

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

Explore CW reception at SO8OO

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