F4BYA/P — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: France Most frequent locator attributed to this token: JN13

Receiver-side FT8 activity involving F4BYA/P, decoded by SO8OO in southeastern Poland. 1,065 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 13 UTC dates in the available aggregate history. Observed between 2026-08-06 and 2026-08-20.

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 1,065 FT8 messages attributed to F4BYA/P as the transmitting token by decoded message structure across 13 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%), followed by 80 m (0%). Most decodes (54%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

1,065
Messages attributed
13
UTC dates decoded
107
Active 15-min windows
-8 dB
Estimated median S/N

Bands

First attributed message: 2026-08-06
Last attributed message: 2026-08-20 15:53 UTC

Observed FT8 message patterns

Attributed sample
1,065 messages
Active dates
13 UTC dates
Estimated median S/N
-8 dB
Estimated 10th-90th percentile
-15 to +2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 94, moderate (-15 to -9 dB) 406, strong (≥ -8 dB) 565.

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.

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 F4BYA/P

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
JN13 · 672 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,595 km (approx.)
Last such locator decoded
2026-08-20 15:52 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 UTCBandF4BYA/P S/NCounterpartCounterpart S/NMsgsCapture
08-20 15:52 20m +14 / - RW1AX - / -10 3 Partial capture
08-20 15:47 20m +6 / - PD3LKN - / -10 3 ✓ Closing fragment
08-20 15:46 20m - / - 2E0FWE -5 / - 2 Partial capture
08-20 15:44 20m +12 / -15 GE3ZQQ -14 / +5 4 ✓ Full exchange observed
08-20 15:43 20m +1 / - G7SQW - / -12 3 ✓ Closing fragment
08-20 15:41 20m -1 / -6 R6OAG 0 / -9 2 Partial capture
08-20 15:39 20m +2 / - M7TUP - / -9 2 ✓ Closing fragment
08-20 15:34 20m +6 / - PI4TX -15 / +6 7 Partial capture
08-20 15:32 20m - / - RD4AN -12 / - 2 Partial capture
08-20 12:51 20m -4 / - DG1KFR - / -11 2 ✓ Closing fragment
08-20 12:50 20m +2 / - HA0DS - / -2 2 ✓ Closing fragment
08-20 12:47 20m +8 / -4 R5AV -2 / -5 3 ✓ Full exchange observed
08-20 11:34 20m +2 / -22 G1LQT -6 / -8 5 ✓ Full exchange observed
08-20 11:27 20m -5 / - PA1AMS - / -16 5 Partial capture
08-20 11:23 20m +4 / -11 UT4QM -14 / -9 3 ✓ Full exchange observed
08-20 10:13 20m +10 / -13 UT4QM -3 / -18 10 Partial capture
08-20 10:10 20m +1 / - SP9WAZ - / -11 2 ✓ Closing fragment
08-20 09:52 20m - / - TA2EE -10 / - 3 Partial capture
08-20 09:49 20m -6 / - PB0ACM - / +7 3 ✓ Closing fragment
08-20 09:43 20m - / - G3EFG +3 / - 3 Partial capture
08-20 09:43 20m - / - M7OFN +2 / - 3 Partial capture
08-20 08:27 20m -8 / - ON3JDK - / -12 2 ✓ Closing fragment
08-20 08:23 20m - / -15 PD3PAM -10 / - 5 Partial capture
08-20 08:21 20m - / -5 PE9JAN +4 / - 2 Partial capture
08-20 08:16 20m - / - PA0KGB -15 / - 9 Partial capture
08-20 08:05 20m 0 / -16 PE9JAN 0 / - 8 ✓ Closing observed
08-20 08:04 20m -18 / -9 PD9FLX -11 / -1 5 ✓ Full exchange observed
08-19 18:59 20m -8 / - JA4FKX - / -10 2 ✓ Closing fragment
08-19 18:56 20m -11 / - R5FN -6 / -15 3 ✓ Closing observed
08-19 18:54 20m -14 / -5 RA3ZDU -5 / +3 7 ✓ Full exchange observed
08-18 15:16 20m -8 / - ON7GG - / -14 2 ✓ Closing fragment
08-18 15:05 20m -16 / - YO5PHL - / -16 4 ✓ Closing fragment
08-18 10:39 20m - / - UR5AMJ -12 / - 2 Partial capture
08-18 04:40 80m - / -5 LA6YEA -6 / - 2 Partial capture
08-18 04:27 80m - / -12 DK7ZT -1 / - 5 Partial capture
08-18 04:25 80m -22 / - CT7AUT - / - 2 ✓ Closing fragment
08-17 12:48 20m -10 / - OH2DUV - / -16 10 ✓ Closing fragment
08-17 12:46 20m -11 / - YO3FFF - / -8 3 ✓ Closing fragment
08-17 12:44 20m -8 / - CT7AQP - / - 5 Partial capture
08-17 12:42 20m -12 / - KI6DY - / - 4 Partial capture
08-17 12:39 20m -12 / -8 IV3IFN -21 / -6 5 Partial capture
08-17 12:36 20m - / -1 F4BYA -9 / - 5 Partial capture
08-17 12:33 20m -8 / - SP3GTP - / -5 5 ✓ Closing fragment
08-17 12:31 20m -9 / - RK9DO - / - 5 Partial capture
08-17 12:28 20m -10 / - PD0OQV - / - 3 Partial capture
08-17 12:26 20m -13 / - RA6AVP - / - 5 Partial capture
08-17 12:24 20m -14 / - SP2NBH - / -16 3 ✓ Closing fragment
08-17 12:19 20m -12 / - F1FPM - / -17 9 Partial capture
08-17 12:17 20m -14 / - DJ3HB - / - 5 Partial capture
08-17 12:14 20m - / -10 F4BYA -12 / - 4 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m
UTC    dB Audio  Message
154730  +8  902  PD3LKN F4BYA/P RR73 (x2)
154830  +3  902  CQ F4BYA/P JN13 (x3)
154945 -10 2965  F4BYA/P IW5ALZ JN53
155000  +0  902  CQ F4BYA/P JN13 (x4)
155230 +12  901  RW1AX F4BYA/P -10 (x3)
155645 -12  658  F4BYA/P R3WDW KO81
155800  -8  664  F4BYA/P R3PJ KO84
80m
UTC    dB Audio  Message
042545 -21 2447  CT7AUT F4BYA/P JN13 (x2)
042730  -3 2027  F4BYA/P DK7ZT -12 (x5)
044015  -7 2450  F4BYA/P LA6YEA JO48 (x2)
40m
UTC    dB Audio  Message
090300 -23 1343  F4BYA/P HA1ZW -11

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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