LA4WKA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Norway Most frequent locator attributed to this token: JP20

Receiver-side FT8 activity involving LA4WKA, decoded by SO8OO in southeastern Poland. 31 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-29 and 2026-08-08.

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 LA4WKA as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (61%), followed by 10 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 -13 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-13 dB

Estimated median S/N

Bands

20m · 19 10m · 12

First attributed message: 2026-06-29
Last attributed message: 2026-08-08 19:33 UTC

Observed FT8 message patterns

Attributed sample: 31 messages
Active dates: 5 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -20 to -6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 11, moderate (-15 to -9 dB) 15, strong (≥ -8 dB) 5.

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 LA4WKA in decoded directed-looking exchanges:

DN9OPA · Fed. Rep. of Germany F4DUZ · France F4IIX · France SP8V · Poland A92AE · Bahrain CS8ABF · Azores CU6NS · Azores DN5KBG · Fed. Rep. of Germany EX8BT · Kyrgyzstan JY5IB · Jordan RK3AF · European Russia SV5BYP · Dodecanese

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 LA4WKA

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: JP20 · 16 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,576 km (approx.)
Last such locator decoded: 2026-08-08 19:13 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	LA4WKA S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-04 10:58	20m	- / -10	GJ0KYZ	-8 / -	3	Partial capture
08-04 10:47	20m	- / -3	RK3AF	-12 / -	2	✓ Closing fragment
08-04 10:41	20m	- / -9	PD0WL	-17 / -	4	Partial capture
08-04 10:39	20m	- / -21	DN5KBG	-8 / -	3	✓ Closing fragment
07-08 18:54	20m	- / -11	JY5IB	-5 / -	2	✓ Closing fragment
07-07 17:38	10m	- / -	PD1HPB	-19 / -	5	Partial capture
07-03 18:24	20m	-9 / -	TN8GD	- / -	3	Partial capture
07-02 22:36	20m	-6 / -	JY5IB	- / -	2	Partial capture
07-02 22:31	20m	-16 / -	BG3TFT	- / -	2	Partial capture
07-02 22:24	20m	-18 / -	BG4OOO	- / -21	4	Partial capture
07-02 18:07	20m	- / -6	CS8ABF	-13 / -	2	✓ Closing fragment
06-30 11:33	10m	- / -	DN9PBN	0 / -	2	Partial capture
06-29 19:19	10m	-10 / +2	F4DUZ	+2 / -3	8	✓ Full exchange observed
06-29 19:08	10m	-14 / -	F4DUZ	- / -	2	Partial capture
06-29 18:55	10m	-16 / -	SP8V	- / -14	3	✓ Closing fragment
06-29 18:53	10m	-14 / -	DN9OPA	- / -8	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
104100  -4 1575  LA4WKA DN5KBG 73
104130 -17 1275  LA4WKA PD0WL JO21 (x3)
104700  -9 2488  LA4WKA RK3AF -03 (x2)
105845  -9  522  LA4WKA GJ0KYZ -10 (x4)
194330  -9 1963  7Z1BQ LA4WKA JP20
195200  -6 1929  A92AE LA4WKA R-14 (x2)
191345 -22 1904  IZ0AIO LA4WKA JP20
193330 -15 1887  SV3CKF LA4WKA R-11

10m

UTC    dB Audio  Message
192000  +0  986  LA4WKA F4DUZ +02 (x2)
192115  -9 1529  F4DUZ LA4WKA JP20
192130  +6  988  LA4WKA F4DUZ +01
192145 -12 1530  F4DUZ LA4WKA R-03
192200  -1  988  LA4WKA F4DUZ RR73
192215  -9 1531  F4DUZ LA4WKA 73
113345  -1 3074  LA4WKA DN9PBN +20 (x2)
110815 -24 1898  LA4WKA F8AEJ +00
173815 -23 1732  LA4WKA PD1HPB JO22 (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