BD4XGP — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: China Most frequent locator attributed to this token: OM91

Receiver-side FT8 activity involving BD4XGP, decoded by SO8OO in southeastern Poland. 26 FT8 messages attributed to this token as transmitter, on 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-07-22.

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 26 FT8 messages attributed to BD4XGP as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was -18 dB; no usual signal pattern is inferred.

Overview

26
Messages attributed
2
UTC dates decoded
6
Active 15-min windows
-18 dB
Estimated median S/N

Bands

20m · 26
First attributed message: 2026-06-12
Last attributed message: 2026-07-22 17:16 UTC

Observed FT8 message patterns

Attributed sample
26 messages
Active dates
2 UTC dates
Estimated median S/N
-18 dB
Estimated 10th-90th percentile
-21 to -14 dB
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 17, moderate (-15 to -9 dB) 9, 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 BD4XGP in decoded directed-looking exchanges:

Most frequent locator attributed to BD4XGP

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
OM91 · 10 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,858 km (approx.)
Last such locator decoded
2026-07-22 17:16 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 UTCBandBD4XGP S/NCounterpartCounterpart S/NMsgsCapture
08-29 17:13 20m - / - EB3JT +9 / - 7 Partial capture
08-25 16:59 20m - / - YO9HB -20 / - 3 Partial capture
08-22 19:47 20m - / - EB3JT 0 / - 7 Partial capture
08-22 17:26 20m - / -20 F4BYA -4 / - 4 ✓ Closing fragment
08-14 16:22 20m - / -10 RY4AAE -6 / - 3 ✓ Closing fragment
08-14 15:54 20m - / -16 RY4AAE -4 / - 2 Partial capture
08-04 18:28 20m - / - F4GGJ 0 / - 3 Partial capture
08-03 17:36 20m - / -14 EV1R -10 / - 3 ✓ Closing fragment
08-02 16:07 40m - / -12 RN6HK -19 / - 4 Partial capture
07-28 16:50 40m - / - DL4ME -8 / - 4 Partial capture
07-28 16:50 40m - / - US2YW +1 / - 3 Partial capture
07-28 16:43 40m - / - UX7QV -1 / - 6 Partial capture
07-27 20:59 20m - / -10 SA3LEN +5 / - 2 ✓ Closing fragment
07-27 16:29 40m - / - RA6ANN -16 / - 2 Partial capture
07-26 19:15 40m - / - OE5ROR -7 / - 3 Partial capture
07-26 18:21 40m - / - IZ4VSD -21 / - 2 ✓ Closing fragment
07-26 18:18 40m - / -21 R3DIH -16 / - 4 Partial capture
07-26 18:04 20m - / - DL6EL -5 / - 3 Partial capture
07-25 19:21 20m - / -18 GM3JIM -2 / - 3 ✓ Closing fragment
07-23 19:04 40m - / -20 9A3K +5 / - 2 Partial capture
07-23 18:38 40m - / -15 SP6CC -2 / - 3 Partial capture
07-23 18:36 40m - / -13 UV1IX -10 / - 2 ✓ Closing fragment
07-23 18:30 40m - / -24 SP6CC -6 / - 2 ✓ Closing fragment
07-23 18:27 40m - / -13 S57UX -2 / - 2 Partial capture
07-23 18:23 40m - / - HA1RJ -4 / - 2 Partial capture
07-23 18:16 40m - / -19 R6DZR -10 / - 4 ✓ Closing fragment
07-23 18:13 40m - / -10 S59A -4 / - 2 ✓ Closing fragment
07-23 17:54 40m - / -12 9A5E -10 / - 2 ✓ Closing fragment
07-23 17:46 40m - / - OE6TNO -15 / - 5 Partial capture
07-23 17:36 40m - / -13 RA6FC -16 / - 2 ✓ Closing fragment
07-23 17:29 40m - / -15 RA6FCU -10 / - 2 ✓ Closing fragment
07-23 17:17 40m - / -13 R3WDW +1 / - 3 ✓ Closing fragment
07-22 20:38 40m - / - DL5EBS -9 / - 2 Partial capture
07-22 20:32 40m - / -21 R3ZBR -4 / - 2 Partial capture
07-22 20:26 40m - / - EA1B -6 / - 6 Partial capture
07-22 20:22 40m - / -14 SM7/DL1JAT -24 / - 2 Partial capture
07-22 20:20 40m - / -20 DK3ME -12 / - 3 ✓ Closing fragment
07-22 20:04 40m - / -13 DL6MRS +2 / - 4 ✓ Closing fragment
07-22 19:58 40m - / -18 DL6MRS +4 / - 7 Partial capture
07-22 19:49 40m - / - PA7D -12 / - 2 Partial capture
07-22 19:31 40m - / -15 SP9ENV -10 / - 3 ✓ Closing fragment
07-22 19:26 40m - / -20 RX6AOB -6 / - 2 ✓ Closing fragment
07-22 19:23 40m - / - SP9EVL +3 / - 3 Partial capture
07-21 10:26 20m - / -20 R6DNC -20 / - 2 ✓ Closing fragment
07-20 19:54 40m - / - HB9ISF -11 / - 2 Partial capture
07-20 19:12 40m - / -25 RA6AR -10 / - 4 ✓ Closing fragment
07-20 19:10 40m - / - SV5BYP -17 / - 5 Partial capture
07-20 19:08 40m - / -17 R3LDK -2 / - 2 ✓ Closing fragment
07-20 18:58 40m - / -22 DL5MK +2 / - 3 ✓ Closing fragment
07-20 18:51 40m - / -17 R7GA -18 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
194915  +4 1462  BD4XGP EB3JT JN01 (x3)
155700  +0 1463  BD4XGP M7KBF IO91
165930 -16 1464  BD4XGP YO9HB KN34
165930 -15 1854  BD4XGP US7KC KO21
170000 -22 1464  BD4XGP YO9HB KN34 (x2)
171300 +11 1462  BD4XGP EB3JT JN01 (x7)
40m 
UTC    dB Audio  Message
164545  -3 1789  BD4XGP UX7QV KN29 (x3)
165045  -3 1789  BD4XGP US2YW KN28
165045 -10 1407  BD4XGP DL4ME JO50
165115  +2 1789  BD4XGP US2YW KN28 (x2)
165245  -6 1407  BD4XGP DL4ME JO50 (x3)
165415 -18 1927  BD4XGP RD7X -22
160715 -15 1788  BD4XGP RN6HK LN14 (x4)
10m 
UTC    dB Audio  Message
115230 -21 1250  BD4XGP DN9DHG R-17
042245 -10 1490  BD4XGP R6ZIG KN98 (x3)
042715  +1 2583  BD4XGP UB6C KN94 (x5)
043245 -20 1490  BD4XGP R6ZIG KN98 (x2)
064700  +0 2528  BD4XGP R7RDE -04 (x2)
073115  +9 3026  BD4XGP R6NA KN97
072100  -5 1942  BD4XGP 9A3K 73

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