BD1CAZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: China Most frequent locator attributed to this token: OM70

Receiver-side FT8 activity involving BD1CAZ, decoded by SO8OO in southeastern Poland. 39 FT8 messages attributed to this token as transmitter, on 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-06-15.

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 39 FT8 messages attributed to BD1CAZ 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 -10 dB; no usual signal pattern is inferred.

Overview

39
Messages attributed
2
UTC dates decoded
8
Active 15-min windows
-10 dB
Estimated median S/N

Bands

20m · 39
First attributed message: 2026-06-13
Last attributed message: 2026-06-15 17:45 UTC

Observed FT8 message patterns

Attributed sample
39 messages
Active dates
2 UTC dates
Estimated median S/N
-10 dB
Estimated 10th-90th percentile
-16 to -9 dB
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 32, strong (≥ -8 dB) 3.

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 BD1CAZ in decoded directed-looking exchanges:

Most frequent locator attributed to BD1CAZ

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
OM70 · 21 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,679 km (approx.)
Last such locator decoded
2026-06-13 16:29 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 UTCBandBD1CAZ S/NCounterpartCounterpart S/NMsgsCapture
09-19 22:18 40m - / -15 EA8UP -16 / - 4 ✓ Closing fragment
09-07 15:04 40m - / -18 RY3D +6 / - 2 ✓ Closing fragment
09-06 16:23 40m - / -16 OH5KNL +1 / - 2 ✓ Closing fragment
08-27 14:27 20m - / -16 BG0FQU -18 / - 2 ✓ Closing fragment
08-26 14:47 20m - / -26 R4HHN -12 / - 2 ✓ Closing fragment
08-24 18:37 20m - / -21 RZ4AZ -1 / - 3 ✓ Closing fragment
08-24 17:42 20m - / -8 IZ5MMT +26 / - 2 ✓ Closing fragment
08-24 16:17 20m - / -10 JR5XPG +2 / - 2 ✓ Closing fragment
08-24 16:02 20m - / - RZ6ALZ -2 / - 3 Partial capture
08-24 15:20 20m - / -15 R9AL -15 / - 2 Partial capture
08-24 11:12 20m - / -18 R9OAK -18 / - 2 ✓ Closing fragment
08-21 19:47 20m - / -25 ON6SAT +3 / - 4 Partial capture
08-21 19:24 20m - / -15 DL3MIB +12 / - 3 ✓ Closing fragment
08-21 17:37 20m - / -16 OK2CNI +20 / - 3 ✓ Closing fragment
08-21 15:57 20m - / -19 SP6JIU -9 / - 3 ✓ Closing fragment
08-21 15:24 20m - / - YE4FNN -1 / - 3 Partial capture
08-20 21:40 40m - / -19 9A3J +4 / - 2 ✓ Closing fragment
08-17 13:11 20m - / -16 RX3ASQ -18 / - 3 ✓ Closing fragment
08-04 16:01 20m - / -19 EA7ALL -18 / - 2 ✓ Closing fragment
08-04 15:37 20m - / -9 OE5CCN 0 / - 4 ✓ Closing fragment
08-04 15:32 20m - / -14 DL1NCH -3 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
214030  +6 2136  BD1CAZ 9A3J -19 (x2)
162300  +0 2476  BD1CAZ OH5KNL -16 (x2)
150445  +3  637  BD1CAZ RY3D -18 (x2)
200415 -13  285  BD1CAZ JE1LFX -21
200745  +5 2359  BD1CAZ PI4DX -16
221800 -15 2384  BD1CAZ EA8UP -15 (x4)
20m 
UTC    dB Audio  Message
160315  -4 1995  BD1CAZ RZ6ALZ LN06
161745  +3 2744  BD1CAZ JR5XPG -10 (x2)
164100 -14  869  BD1CAZ EX7DY -07
174200 +25  508  BD1CAZ IZ5MMT -08 (x2)
183730  -2  387  BD1CAZ RZ4AZ LN28 (x3)
205945 +11 2744  BD1CAZ DR800WE -17
144730 -17  650  BD1CAZ R4HHN R-26 (x2)
172445  +7  865  BD1CAZ R3UAX -22
142730 -18 1512  BD1CAZ BG0FQU -16 (x2)

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