YV3CFP — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving YV3CFP, decoded by SO8OO in southeastern Poland. 6 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-20.
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 6 FT8 messages attributed to YV3CFP as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (83%), followed by 20 m (17%). In this small sample, the estimated median decoder S/N was -23 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-20 01:42 UTC
Observed FT8 message patterns
- Attributed sample
- 6 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- -23 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 0.
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 YV3CFP in decoded directed-looking exchanges:
Most frequent locator attributed to YV3CFP
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
- FK50 · 2 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 9,172 km (approx.)
- Last such locator decoded
- 2026-09-13 02:36 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 | YV3CFP S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-20 01:42 | 40m | -22 / - | F5NBU | - / -9 | 2 | Partial capture |
| 09-20 01:38 | 40m | - / -12 | SV2HTW | +4 / - | 2 | ✓ Closing fragment |
| 09-15 01:02 | 40m | - / -16 | GM7JQK | 0 / - | 3 | ✓ Closing fragment |
| 09-15 01:00 | 40m | - / -11 | F4CQS | -2 / - | 2 | ✓ Closing fragment |
| 09-13 02:30 | 40m | - / -16 | 4L1FL | +2 / - | 3 | ✓ Closing fragment |
| 09-13 02:17 | 40m | - / -2 | EH1SDC | -8 / - | 2 | ✓ Closing fragment |
| 09-13 02:06 | 40m | - / - | HK3W | -12 / - | 5 | Partial capture |
| 09-09 02:43 | 40m | - / -13 | UT5ZC | -14 / - | 4 | Partial capture |
| 09-09 02:29 | 40m | - / -16 | IT9CBE | -15 / - | 3 | ✓ Closing fragment |
| 09-09 02:25 | 40m | - / -21 | RA6ABC | +8 / - | 5 | ✓ Closing fragment |
| 09-06 23:30 | 40m | - / - | EA3EDU | -6 / - | 3 | Partial capture |
| 09-06 23:29 | 40m | - / - | EB3JT | -12 / - | 7 | Partial capture |
| 09-06 23:29 | 40m | - / -5 | DK7ZT | +4 / - | 3 | ✓ Closing fragment |
| 09-06 02:20 | 40m | - / -12 | F1PBZ | -1 / - | 3 | Partial capture |
| 09-06 02:19 | 40m | - / -18 | IT9VCE | +4 / - | 2 | ✓ Closing fragment |
| 09-01 23:25 | 40m | - / -6 | MD0CCE | -4 / - | 2 | ✓ Closing fragment |
| 09-01 22:29 | 40m | - / -18 | <...> | -7 / - | 2 | Partial capture |
| 09-01 22:21 | 40m | - / -16 | G1CEC | -17 / - | 5 | ✓ Closing fragment |
| 09-01 22:20 | 40m | - / -14 | DK7ZT | -3 / - | 7 | Partial capture |
| 08-29 00:58 | 40m | - / -2 | V47JA | -10 / - | 2 | ✓ Closing fragment |
| 08-28 22:46 | 40m | - / -13 | DK7ZT | +2 / - | 4 | Partial capture |
| 08-28 22:36 | 40m | - / -12 | YL3RZ | +7 / - | 2 | ✓ Closing fragment |
| 08-27 00:42 | 40m | - / -11 | K4JKB | -15 / - | 4 | ✓ Closing fragment |
| 08-23 23:03 | 20m | - / - | OK2CNI | -11 / - | 5 | Partial capture |
| 08-10 01:44 | 40m | - / - | YO8RSL | -18 / - | 2 | Partial capture |
| 08-10 01:36 | 40m | - / -16 | EA3NE | -16 / - | 4 | ✓ Closing fragment |
| 08-10 01:32 | 40m | - / +6 | P40AA | -6 / - | 2 | ✓ Closing fragment |
| 07-12 22:38 | 40m | - / -15 | IQ4JO | -9 / - | 2 | Partial capture |
| 07-11 03:31 | 40m | - / -12 | PA3BUD | -9 / - | 4 | ✓ Closing fragment |
| 07-11 03:18 | 40m | - / - | F6BLP | -1 / - | 3 | Partial capture |
| 07-09 23:06 | 40m | - / -7 | DA1DH | -20 / - | 3 | Partial capture |
| 07-09 23:05 | 40m | - / - | F4GTB | -16 / - | 4 | Partial capture |
| 07-09 22:59 | 40m | - / - | DA1DH | -15 / - | 2 | Partial capture |
| 07-09 22:58 | 40m | - / -4 | DH1KJ | -3 / - | 6 | ✓ Closing fragment |
| 07-09 22:57 | 40m | - / -7 | PC2J | -18 / - | 3 | ✓ Closing fragment |
| 07-08 01:17 | 40m | - / -7 | LX1JH | -10 / - | 2 | ✓ Closing fragment |
| 07-06 00:21 | 40m | - / -21 | EA7LIC | -16 / - | 4 | ✓ Closing fragment |
| 07-06 00:21 | 40m | - / -21 | IW2DNI | -10 / - | 3 | ✓ Closing fragment |
| 06-27 23:09 | 20m | - / +1 | R5DT | +1 / - | 2 | ✓ Closing fragment |
| 06-24 23:46 | 40m | - / -20 | F4ENK | +3 / - | 3 | ✓ Closing fragment |
| 06-24 23:32 | 20m | - / - | UW8SM | -17 / - | 9 | Partial capture |
| 06-24 23:19 | 20m | - / -13 | EI4LE | -2 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 023000 +6 1968 YV3CFP 4L1FL -16 (x3) 023530 -20 1968 YV3CFP UA4FKT LO23 023645 -23 1967 CQ YV3CFP FK50 a1 010015 -2 1968 YV3CFP F4CQS -11 (x2) 010230 +1 842 YV3CFP GM7JQK R-16 (x3) 013815 +4 801 YV3CFP SV2HTW R-12 (x2) 014000 -5 1784 YV3CFP IU5AWQ R-08 014215 -23 1972 F5NBU YV3CFP -09 (x2)
UTC dB Audio Message 233300 -18 1963 YV3CFP UW8SM KN28 (x8) 230915 +1 454 YV3CFP R5DT R+01 (x2) 230330 -8 2662 YV3CFP OK2CNI JN79 (x5)
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.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee