CO8CF — 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: Cuba Most frequent locator attributed to this token: FL20

Receiver-side FT8 activity involving CO8CF, decoded by SO8OO in southeastern Poland. 97 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-08-27.

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 97 FT8 messages attributed to CO8CF as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (97%), followed by 40 m (3%). Most decodes (92%) fell within the six-hour window 23:00-05:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.

Overview

97
Messages attributed
5
UTC dates decoded
18
Active 15-min windows
-16 dB
Estimated median S/N

Bands

40m · 3 20m · 94
First attributed message: 2026-06-07
Last attributed message: 2026-08-27 03:14 UTC

Observed FT8 message patterns

Attributed sample
97 messages
Active dates
5 UTC dates
Estimated median S/N
-16 dB
Estimated 10th-90th percentile
-24 to -8 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 53, moderate (-15 to -9 dB) 34, strong (≥ -8 dB) 10.

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 CO8CF 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 CO8CF

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
FL20 · 68 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,746 km (approx.)
Last such locator decoded
2026-08-27 03:12 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 UTCBandCO8CF S/NCounterpartCounterpart S/NMsgsCapture
10-16 04:32 40m - / - F4CWZ -17 / - 2 Partial capture
10-16 04:30 40m - / - F4IIX -6 / - 2 Partial capture
10-16 04:19 40m - / - F4CWZ -6 / - 2 Partial capture
10-16 04:14 40m - / - F4IIX -5 / - 3 Partial capture
10-16 04:08 40m - / - F4GAJ -8 / - 4 Partial capture
10-16 04:00 40m - / -19 EA3DBZ -19 / - 2 Partial capture
10-12 21:43 40m - / - EA1ESW -8 / - 3 Partial capture
10-12 21:30 40m - / - F6FDY -17 / - 8 Partial capture
10-09 22:01 40m - / - I3LID +6 / - 2 Partial capture
10-09 21:52 40m - / - EA3HMM -6 / - 2 Partial capture
10-09 21:50 40m - / - EI4JFB -10 / - 2 Partial capture
10-09 03:35 80m - / -17 UT5ZC +6 / - 4 ✓ Closing fragment
10-07 05:16 40m - / - DL1UDO -5 / - 2 Partial capture
10-07 05:05 40m - / -10 F5IYE -7 / - 2 Partial capture
10-07 05:05 40m - / - DL6REX -10 / - 2 Partial capture
10-07 05:04 40m - / - F5SZA -21 / - 2 Partial capture
10-07 05:02 40m - / - OH3YP -10 / - 12 Partial capture
10-07 04:58 40m - / - F5IYE +1 / - 3 Partial capture
10-07 04:51 40m - / - EA3AKY -2 / - 4 Partial capture
10-07 04:50 40m - / - Z34K -8 / - 5 Partial capture
10-07 04:36 40m - / - SV1EKI -16 / - 4 Partial capture
10-07 04:35 40m - / -20 SV2AOB -1 / - 4 Partial capture
10-07 04:34 40m - / - F5MNW -20 / - 2 Partial capture
10-07 04:26 40m - / - SV1EKI -16 / - 6 Partial capture
10-07 04:15 40m - / - EA5D -17 / - 2 Partial capture
10-07 04:14 40m - / - EA2CDY -12 / - 9 Partial capture
10-07 04:10 40m - / -19 UZ5CA -4 / - 4 Partial capture
10-07 03:50 40m - / - F4GYY -10 / - 2 Partial capture
10-07 03:49 40m - / - EA5D -20 / - 2 Partial capture
10-07 03:37 40m - / - F5IYE +11 / - 4 Partial capture
10-07 03:34 40m - / - KY2J -16 / - 2 ✓ Closing fragment
10-07 03:29 40m - / - F5IYE +7 / - 5 Partial capture
10-07 03:24 40m - / -8 CT3MD -6 / - 11 ✓ Closing fragment
10-02 03:59 80m - / -25 OH1MLZ +20 / - 3 Partial capture
10-02 03:45 80m - / - G0CUZ -7 / - 7 Partial capture
10-02 03:32 80m - / - F1TXI -2 / - 7 Partial capture
10-02 03:29 80m - / -10 ES2MC +10 / - 2 ✓ Closing fragment
10-02 03:19 80m - / - LB0TH -13 / - 5 Partial capture
10-02 03:12 80m - / - OH2XX +6 / - 2 Partial capture
10-02 02:47 80m - / - OH7KM +11 / - 4 Partial capture
10-02 02:43 80m - / -15 UT7EV +9 / - 2 Partial capture
10-02 02:34 80m - / -9 WP4U -7 / - 4 ✓ Closing fragment
09-30 22:05 40m - / - HB9GII -11 / - 2 Partial capture
09-30 22:02 40m - / - HB9GII -10 / - 2 Partial capture
09-30 21:54 40m - / - DL6TZ -10 / - 2 Partial capture
09-30 21:51 40m - / - HB9GII -12 / - 3 Partial capture
09-30 21:47 40m - / - LB6NK -16 / - 3 Partial capture
09-30 21:44 40m - / -13 LB7ZG 0 / - 3 ✓ Closing fragment
09-30 21:35 40m - / -21 PA0FNI -5 / - 4 Partial capture
09-30 21:20 40m - / - PA1PXL -5 / - 5 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
040115 -19 1212  CO8CF EA3DBZ -19
040815  -8 1189  CO8CF F4GAJ IN99 (x4)
041415  -8  296  CO8CF F4IIX IN95 (x3)
041915  -8  538  CO8CF F4CWZ JN38 (x2)
042945 -19 1661  CO8CF ON8DM JO10
043045  -6  295  CO8CF F4IIX IN95 (x2)
043215 -15 1192  CO8CF F4CWZ JN38 (x2)
80m 
UTC    dB Audio  Message
033530  -2 1377  CO8CF F1TXI IN96
034515  -7 1460  CO8CF G0CUZ IO82 (x7)
035945 +19 2514  CO8CF OH1MLZ KP23 (x3)
033500  +3 2019  CO8CF UT5ZC KN57 (x4)
20m 
UTC    dB Audio  Message
030730 -16 1450  CQ CO8CF FL20 (x4)
030945 -14 1450  CO8CF R9WCK LO72
031000 -16 1449  CQ CO8CF FL20
031015 -16 1448  CO8CF R9WCK LO72
031030 -15 1449  CQ CO8CF FL20
031100 -19 1448  RT6DU CO8CF -03 (x2)
031200 -15 1446  CQ CO8CF FL20 (x2)
031245 -12 2271  CO8CF R4RM LO55
031400 -14 1445  KJ5PTH CO8CF -15 (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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