KD1BA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: FN42

Receiver-side FT8 activity involving KD1BA, decoded by SO8OO in southeastern Poland. 31 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-09-16.

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 31 FT8 messages attributed to KD1BA as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (61%), followed by 20 m (39%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-8 dB

Estimated median S/N

Bands

40m · 19 20m · 12

First attributed message: 2026-06-09
Last attributed message: 2026-09-16 00:02 UTC

Observed FT8 message patterns

Attributed sample: 31 messages
Active dates: 7 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -15 to +4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 11, strong (≥ -8 dB) 17.

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 KD1BA in decoded directed-looking exchanges:

EA1CQ · Spain ER3PM · Moldova GM4HYG · Scotland GW0PRM · Wales HB9EFK · Switzerland LZ1KU · Bulgaria SV5BYP · Dodecanese SV9QWC · Crete VE9LZ · Canada

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 KD1BA

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: FN42 · 10 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 6,716 km (approx.)
Last such locator decoded: 2026-09-16 00:00 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	KD1BA S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-16 00:02	40m	-14 / -9	EA5HM	-8 / -19	8	Partial capture
09-16 00:00	40m	-15 / -5	SV9QWC	-14 / -15	5	✓ Full exchange observed
09-15 23:58	40m	- / -	EI3CTB	0 / -	5	Partial capture
09-15 23:57	40m	-15 / +2	VE9LZ	-14 / -	3	✓ Closing observed
09-15 01:10	40m	- / -18	RA4FP	-6 / -	5	Partial capture
09-15 01:09	40m	-10 / -	OV0MON/R	- / -23	4	Partial capture
09-15 01:08	40m	-8 / -	ER3PM	- / -12	2	✓ Closing fragment
09-09 22:16	40m	- / -10	EA1CQ	-17 / -	2	✓ Closing fragment
09-08 22:42	40m	- / -4	LZ1KU	+2 / -	2	✓ Closing fragment
09-08 22:41	40m	- / -	F5PBG	0 / -	2	Partial capture
09-08 22:36	40m	- / -8	GW0PRM	-8 / -	4	✓ Closing fragment
09-05 00:34	40m	- / -	CT2HEX	-14 / -	4	Partial capture
09-03 23:23	40m	-7 / -	GM4HYG	-5 / -11	4	✓ Closing observed
08-28 21:45	20m	- / -6	7Z1DJ	-10 / -	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
000030  +2 2868  KD1BA EI3CTB IO63
000045 -14 1380  SV9QWC KD1BA FN42
000100 -14 1979  KD1BA SV9QWC -05
000115 -14 1380  SV9QWC KD1BA R-15
000130 -14 1980  KD1BA SV9QWC RR73
000130 -11 1782  KD1BA M0WTN IO82
000145 -16 1379  SV9QWC KD1BA 73
000200  -9 1534  KD1BA EA5HM IM99 (x2)
000245 -14 1379  EA5HM KD1BA -19
000300  -9 1534  KD1BA EA5HM R-09 (x5)

20m

UTC    dB Audio  Message
181245  -4 2784  KD1BA IU5HIU JN53
213745  -9 1385  Z62NS KD1BA FN42
213845  -9 1384  RI1FJL KD1BA FN42
214530  -9 1330  KD1BA 7Z1DJ -06 (x4)

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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