LA5XX — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Norway Most frequent locator attributed to this token: JP77

Receiver-side FT8 activity involving LA5XX, decoded by SO8OO in southeastern Poland. 131 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 32 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-04.

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 131 FT8 messages attributed to LA5XX as the transmitting token by decoded message structure across 32 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (60%), followed by 80 m (40%) and 40 m (1%). Most decodes (68%) fell within the six-hour window 20:00-02:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

131

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

80m · 52 40m · 1 20m · 78

First attributed message: 2026-06-07
Last attributed message: 2026-09-04 01:10 UTC

Observed FT8 message patterns

Attributed sample: 131 messages
Active dates: 32 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -15 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, moderate (-15 to -9 dB) 53, strong (≥ -8 dB) 65.

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 LA5XX in decoded directed-looking exchanges:

IQ4JO · Italy ×2 4Z5PG · Israel DA0OIE · Fed. Rep. of Germany DL7DO · Fed. Rep. of Germany DM4GG · Fed. Rep. of Germany E2WWA · Thailand F1ODM · France F1PSX · France F4JLS · France F4NBB · France G0OSK · England G0VLF · England

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 LA5XX

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: JP77 · 84 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,989 km (approx.)
Last such locator decoded: 2026-09-04 01:07 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	LA5XX S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-04 01:10	80m	-10 / -	F5RRS	- / +2	2	✓ Closing fragment
09-04 01:07	80m	-15 / -7	TF3VS	+2 / +7	6	✓ Full exchange observed
09-04 01:02	80m	-8 / -15	ON4MAP	-22 / -8	6	✓ Full exchange observed
09-04 01:00	80m	-13 / -	ON5RZ	- / -	2	✓ Closing fragment
09-04 00:55	80m	-10 / -14	UA3ATQ	-10 / +10	6	✓ Full exchange observed
09-04 00:55	80m	-8 / -10	UR1CCT	+18 / -	4	✓ Full exchange observed
09-04 00:51	80m	-10 / -	UA4FKT	- / +9	3	✓ Closing fragment
09-04 00:50	80m	-13 / -15	IU5AWQ	-6 / +2	5	✓ Full exchange observed
09-03 05:15	40m	- / -13	OZ6MM	-13 / -	6	Partial capture
09-03 05:11	40m	- / -14	EU4U	+8 / -	2	✓ Closing fragment
09-03 01:22	80m	-2 / -10	DL1UDO	-12 / -	5	✓ Full exchange observed
09-03 01:21	80m	- / -8	UT3UZ	-4 / -	4	Partial capture
09-03 01:19	80m	- / -	F5RRS	+6 / -	4	Partial capture
09-03 01:18	80m	0 / -7	OM6APJ	+5 / +7	5	✓ Full exchange observed
09-03 01:15	80m	- / -	DO5HOK	-8 / -	3	Partial capture
09-03 01:14	80m	-3 / -10	F1PBZ	-10 / +5	3	✓ Full exchange observed
09-03 01:12	80m	-4 / -6	F5HNQ	-16 / -	4	✓ Closing observed
09-03 01:05	80m	- / -	DJ9BW	-2 / -	2	Partial capture
09-03 01:05	80m	-7 / -19	DL1SRS	-18 / -	6	✓ Closing observed
09-03 01:05	80m	-2 / -11	IQ4JO	-10 / +4	5	✓ Full exchange observed
09-03 01:01	80m	-6 / -13	DO9BAU	0 / -	6	✓ Full exchange observed
09-03 00:58	40m	- / -	RX3ASQ	-2 / -	2	Partial capture
08-28 08:53	20m	- / -16	RU3QR	0 / -	8	Partial capture
08-28 08:52	20m	- / +1	ON8MA	+8 / -	5	✓ Closing fragment
08-28 08:52	20m	- / -4	OZ5AGJ	+7 / -	4	✓ Closing fragment
08-26 19:49	20m	-6 / -	W0OVX	- / -	2	Partial capture
08-26 16:47	20m	- / +7	LX1NO	+26 / -	6	✓ Closing fragment
08-26 16:47	20m	- / -10	PA3PWY	-14 / -	2	Partial capture
08-26 02:58	20m	- / -19	RZ4AZ	-16 / -	2	✓ Closing fragment
08-22 15:09	20m	- / -	DA1EA	0 / -	2	Partial capture
08-21 17:54	20m	-11 / -	V51CO	- / -	3	Partial capture
08-20 08:59	20m	- / -	PA1PXL	0 / -	2	Partial capture
08-20 08:59	20m	- / -	DL1GKH	-3 / -	3	Partial capture
08-16 12:01	20m	- / -15	DA0OIE	-14 / -	2	✓ Closing fragment
08-16 10:26	20m	- / -10	OK1UOZ	+4 / -	5	✓ Closing fragment
08-15 08:55	20m	- / -14	PI80LDN/L	-18 / -	3	Partial capture
08-14 09:48	20m	- / -7	F4NBB	-10 / -	2	✓ Closing fragment
08-14 09:34	20m	- / +2	F1PSX	-7 / -	3	✓ Closing fragment
08-13 02:33	60m	- / -15	OZ7FOC	-18 / -	7	Partial capture
08-09 08:56	20m	- / -17	OE6TNO	0 / -	2	Partial capture
08-08 16:04	20m	- / -	DL5KBT	-13 / -	5	Partial capture
08-08 15:59	20m	-12 / -	M0PAX	-8 / -	2	✓ Closing observed
08-08 09:16	20m	- / -15	PD3LKN	-19 / -	3	✓ Closing fragment
08-07 16:19	20m	- / -	OZ1APZ	-14 / -	2	Partial capture
08-07 16:12	20m	- / -11	RG5A	-4 / -	6	Partial capture
08-07 15:46	20m	- / -11	DL7DO	-17 / -	2	✓ Closing fragment
08-07 12:14	20m	- / -16	IV3JJT	-18 / -	2	Partial capture
08-06 21:15	20m	- / -3	DM4GG	+6 / -	4	✓ Closing fragment
08-06 21:07	20m	- / -12	UX5UW	-2 / -	2	✓ Closing fragment
08-04 11:51	20m	- / -	DL2MOS	-10 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
010200 -19 1312  LA5XX ON4MAP JO20 (x2)
010245 -10 2238  ON4MAP LA5XX -08
010300 -24 1312  LA5XX ON4MAP R-15
010315  -7 2238  ON4MAP LA5XX RR73
010430  +8  942  LA5XX SN40KZE -05
010445  -7 2237  ON4MAP LA5XX R+05
010700 -15 2237  TF3VS LA5XX JP77 (x2)
010745  +0 2021  LA5XX TF3VS -07
010800 -15 2237  TF3VS LA5XX R+07
010815  +3 2021  LA5XX TF3VS RR73
010830 -19 2237  TF3VS LA5XX 73
011000  -7 2237  F5RRS LA5XX +02 (x2)

40m

UTC    dB Audio  Message
230145 -17 1181  LA5XX DL2LN 73
230615 -23 1870  LA5XX PD3HB JO32 (x2)
042900 -21 1273  LA5XX OZ7FOC -01
005745 -20 2164  CQ LA5XX JP77
005800  -2 1180  LA5XX RX3ASQ KO95 (x2)
051115 +10 2638  LA5XX EU4U -14 (x2)
051545 -15 2125  LA5XX OZ6MM -13 (x6)

20m

UTC    dB Audio  Message
085315  -1 1023  LA5XX RU3QR -16
085315 +12 2391  LA5XX OZ5AGJ R-04
085315  +7 2540  LA5XX ON8MA JO10
085345  -2 1023  LA5XX RU3QR -16
085345  +4 2391  LA5XX OZ5AGJ 73
085415  +1 1023  LA5XX RU3QR -16
085415 +16 2703  LA5XX ON8MA R+01 (x2)
085545  +1 1023  LA5XX RU3QR -16 (x5)
110915 -13 1527  LA5XX F4JLS 73
100745 -13 2387  CQ LA5XX JP77

60m

UTC    dB Audio  Message
023300 -20 1251  LA5XX OZ7FOC -15 (x8)

10m

UTC    dB Audio  Message
175915  -2  636  LA5XX SV2CLJ KN10 (x3)

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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