CO8CF — FT8 activity observed at SO8OO
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
Bands
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 UTC | Band | CO8CF S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-03 23:38 | 40m | - / - | F4EGM | -2 / - | 2 | Partial capture |
| 09-03 23:37 | 40m | - / - | RX3ASQ | 0 / - | 2 | Partial capture |
| 09-03 23:31 | 40m | - / - | RX3ASQ | -5 / - | 2 | Partial capture |
| 09-03 23:24 | 40m | - / - | R3PJV | 0 / - | 5 | Partial capture |
| 09-03 23:07 | 40m | - / - | RX3ASQ | -5 / - | 2 | Partial capture |
| 08-27 03:14 | 20m | -16 / - | KJ5PTH | - / -15 | 2 | Partial capture |
| 08-27 03:11 | 20m | -17 / - | RT6DU | - / -3 | 2 | ✓ Closing fragment |
| 08-27 03:09 | 20m | - / - | R9WCK | -15 / - | 2 | Partial capture |
| 08-27 03:05 | 20m | - / -11 | R9SB | -4 / - | 3 | Partial capture |
| 08-27 03:01 | 20m | -15 / - | KB4SYV | - / -4 | 2 | ✓ Closing fragment |
| 08-27 02:56 | 20m | - / -8 | RN6HGI | -6 / - | 2 | ✓ Closing fragment |
| 08-27 02:53 | 20m | - / -16 | RZ9A | -10 / - | 2 | Partial capture |
| 08-27 02:48 | 20m | - / - | RW9WT | -4 / - | 3 | Partial capture |
| 08-27 02:45 | 20m | -21 / -5 | SV5BYP | -6 / - | 3 | ✓ Closing observed |
| 08-25 23:54 | 40m | - / -9 | R4ZZ | -2 / - | 3 | Partial capture |
| 08-25 23:46 | 40m | - / - | OH1ZE | 0 / - | 18 | Partial capture |
| 08-25 23:45 | 40m | - / -23 | RL9LR | +1 / - | 5 | ✓ Closing fragment |
| 08-25 23:33 | 20m | -11 / - | KO4NRT | - / -11 | 3 | Partial capture |
| 08-25 23:29 | 20m | -12 / - | AA5GI | - / -5 | 2 | ✓ Closing fragment |
| 08-25 23:27 | 20m | -12 / -7 | RX6AOB | -4 / -9 | 5 | ✓ Full exchange observed |
| 08-25 23:26 | 20m | -14 / - | XE3ISS | - / -8 | 2 | Partial capture |
| 08-25 23:22 | 20m | -13 / -6 | SQ5ANT | -17 / +2 | 4 | ✓ Full exchange observed |
| 08-25 04:55 | 20m | - / -17 | DK8FG | -14 / - | 2 | ✓ Closing fragment |
| 08-25 04:52 | 20m | - / -20 | RA4FEQ | +4 / - | 2 | Partial capture |
| 08-25 04:50 | 20m | - / -18 | SV1FJR | -2 / - | 2 | Partial capture |
| 08-25 04:50 | 20m | - / -15 | ZL1VAH | -4 / - | 2 | Partial capture |
| 08-25 04:49 | 20m | - / - | RW3RN | +6 / - | 4 | Partial capture |
| 08-25 04:47 | 20m | - / - | RC6OX | -8 / - | 3 | Partial capture |
| 08-25 04:45 | 20m | - / -12 | R7WA | -8 / - | 5 | ✓ Closing fragment |
| 08-25 04:43 | 20m | - / -17 | UA3SAO | -5 / - | 10 | Partial capture |
| 08-25 04:41 | 20m | - / -6 | UR3LM | +8 / - | 4 | ✓ Closing fragment |
| 08-25 04:32 | 20m | - / - | KA2H | -15 / - | 2 | Partial capture |
| 08-25 04:28 | 20m | - / -13 | RX6FN | -5 / - | 4 | Partial capture |
| 08-25 04:26 | 20m | - / -15 | F1PBZ | 0 / - | 2 | Partial capture |
| 08-25 04:24 | 20m | - / - | UR3LM | +5 / - | 2 | Partial capture |
| 08-25 04:23 | 20m | - / - | RA6FSV | +1 / - | 3 | Partial capture |
| 08-25 04:22 | 20m | - / - | RX6FN | -2 / - | 2 | Partial capture |
| 08-25 04:22 | 20m | - / - | US0QV | -5 / - | 2 | Partial capture |
| 08-25 04:22 | 20m | - / - | RX6ABW | +4 / - | 2 | Partial capture |
| 08-25 04:18 | 20m | - / - | UA3ZAB | +4 / - | 3 | Partial capture |
| 08-25 04:17 | 20m | - / - | DL3MIB | +6 / - | 3 | Partial capture |
| 08-25 04:12 | 20m | - / - | UA3ZAB | -2 / - | 2 | Partial capture |
| 08-25 04:10 | 20m | - / - | DL3MIB | +6 / - | 7 | Partial capture |
| 08-25 04:08 | 20m | - / - | R3IX | -8 / - | 7 | Partial capture |
| 08-25 04:08 | 20m | - / - | UA3ZAB | -5 / - | 2 | Partial capture |
| 08-25 04:05 | 20m | - / +1 | HB0CC | -2 / - | 4 | ✓ Closing fragment |
| 08-25 04:03 | 20m | - / - | US7ITB | -22 / - | 2 | Partial capture |
| 08-25 04:03 | 20m | - / -1 | RD4A | 0 / - | 5 | ✓ Closing fragment |
| 08-25 03:59 | 20m | - / -8 | OE9KFV | +5 / - | 5 | ✓ Closing fragment |
| 08-25 03:56 | 20m | -24 / - | UA6AFS | -7 / - | 5 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 230815 -5 1180 CO8CF RX3ASQ KO95 232445 -2 2260 CO8CF R3PJV KO94 (x2) 232545 -4 1320 CO8CF F4EGM JN29 232545 -1 2260 CO8CF R3PJV KO94 (x3) 233115 -7 1180 CO8CF RX3ASQ KO95 (x2) 233215 -10 2260 CO8CF R3PJV KO94 233615 -8 1415 CO8CF G4OST IO81 233745 -2 1180 CO8CF RX3ASQ KO95 (x2) 233845 -4 1412 CO8CF F4EGM JN29 (x2)
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)
UTC dB Audio Message 015845 -3 2301 CO8CF F5HNQ IN98
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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