F5LSU — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: France Most frequent locator attributed to this token: JN19

Receiver-side FT8 activity involving F5LSU, decoded by SO8OO in southeastern Poland. 467 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 26 UTC dates in the available aggregate history. Observed between 2026-07-11 and 2026-10-18.

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 467 FT8 messages attributed to F5LSU as the transmitting token by decoded message structure across 26 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (44%), followed by 40 m (42%) and 80 m (9%). Several six-hour UTC windows tied for the largest share (90%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (69%); the estimated median was -5 dB.

Overview

467

Messages attributed

UTC dates decoded

Active 15-min windows

-5 dB

Estimated median S/N

Bands

80m · 42 60m · 19 40m · 195 20m · 206 10m · 5

First attributed message: 2026-07-11
Last attributed message: 2026-10-18 07:19 UTC

Observed FT8 message patterns

Attributed sample: 467 messages
Active dates: 26 UTC dates
Estimated median S/N: -5 dB
Estimated 10th-90th percentile: -12 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 15, moderate (-15 to -9 dB) 128, strong (≥ -8 dB) 324.

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 F5LSU in decoded directed-looking exchanges:

PY4ZP · Brazil RM8L · Asiatic Russia AC5O · United States F4IVG · France K5MGY · United States K6C · United States KK4CDK · United States P40AA · Aruba SP6FME · Poland VA2EHQ · Canada VK3KBC · Australia W5SUM · United States

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 F5LSU

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: JN19 · 336 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,348 km (approx.)
Last such locator decoded: 2026-10-18 07:19 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	F5LSU S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-17 16:00	10m	- / -7	PY4ZP	-10 / -	2	✓ Closing fragment
10-17 07:00	40m	-13 / -	K4YJ	- / -	4	Partial capture
10-17 06:59	40m	- / +6	GJ0KYZ	-2 / -	2	Partial capture
10-17 06:57	40m	-1 / -	5Q1X	- / +2	3	✓ Closing fragment
10-17 06:54	40m	-3 / -	T77NC	- / -11	6	✓ Closing fragment
10-16 07:04	40m	-4 / -	HB9SWR/P	- / -	3	Partial capture
10-16 06:56	40m	-5 / -	ZL2CC	- / -	15	Partial capture
10-16 06:48	40m	+4 / -	FO5SK	- / -	4	✓ Closing fragment
10-16 06:43	60m	-6 / -	VE2KTF	- / -	3	Partial capture
10-16 06:41	60m	-6 / -	F5OYA/P	- / -	3	Partial capture
10-16 06:36	60m	+1 / -	KE9ZZ	- / -	2	Partial capture
10-16 06:35	80m	-9 / -	ON3ANY	- / -	2	Partial capture
10-16 06:32	80m	-6 / -	ON4CAS	- / -2	4	✓ Closing fragment
10-16 06:31	80m	-3 / -	F6IRA	-23 / 0	3	Partial capture
10-16 06:28	80m	-4 / 0	EA1DR	-21 / +1	4	Partial capture
10-16 06:27	80m	-1 / -	F4LHL	-10 / +1	5	✓ Full exchange observed
10-16 06:25	80m	-8 / -	VE2KTF	- / -11	3	✓ Closing fragment
10-11 06:19	40m	+2 / -	C5R	- / -16	3	Partial capture
10-11 06:18	40m	-1 / -	LW5DR	- / -	2	Partial capture
10-11 06:16	40m	- / -7	S55A	-8 / -	2	Partial capture
10-11 06:10	80m	-10 / 0	ON1WFF	-13 / -2	5	✓ Full exchange observed
10-11 06:08	80m	-8 / -	F8RZ	-10 / -	2	✓ Closing observed
10-11 05:54	80m	-11 / -9	IT9VCE	-16 / -11	4	✓ Full exchange observed
10-11 05:52	80m	-2 / -	VE3DZ	- / -18	3	✓ Closing fragment
10-11 05:50	80m	-2 / -2	DO3BOX	-12 / -7	4	✓ Full exchange observed
10-11 05:48	80m	-4 / -	KY4WI	- / -16	4	✓ Closing fragment
10-11 05:44	80m	-2 / -	F4LZZ	-22 / -16	3	Partial capture
10-11 05:42	80m	-3 / -	EA8SG	- / -6	5	Partial capture
09-18 07:52	40m	-11 / 0	OK3MB	-10 / -6	6	✓ Full exchange observed
09-18 07:51	40m	-12 / -8	DG6TOM	-3 / -4	5	✓ Full exchange observed
09-17 07:21	40m	-7 / -	KR4FOH	- / -	4	Partial capture
09-17 07:19	40m	-4 / -	K4YT	- / -21	2	Partial capture
09-17 07:15	40m	-4 / -	VK7AC	- / -	3	Partial capture
09-17 07:06	40m	-5 / -	SP9DPM/P	- / -3	3	Partial capture
09-17 07:04	40m	-6 / -	KZ4NS	- / -	3	Partial capture
09-13 06:04	60m	-11 / -	KP2B	- / -	2	✓ Closing fragment
09-13 06:00	60m	- / -16	HB9EFK	-2 / -	2	✓ Closing fragment
09-12 06:25	40m	-7 / -	ZL3TE	- / -21	5	Partial capture
09-12 06:21	40m	+1 / -	KC0VTJ	- / -	7	Partial capture
09-12 06:19	40m	-1 / -	HK4OK	- / -20	3	✓ Closing fragment
09-12 06:17	40m	-2 / -	VK4AFU	- / -12	2	Partial capture
09-12 06:15	40m	-3 / -	ZL3TUX	- / -16	4	✓ Closing fragment
09-12 06:14	40m	-4 / -	CT2HEX	- / -4	2	✓ Closing fragment
09-12 06:11	40m	-2 / -	J38LD	- / -2	5	✓ Closing fragment
09-11 06:38	40m	0 / -	ZL3TUX	- / -	2	Partial capture
09-11 06:37	40m	-12 / -	ZL1UZM	- / -23	2	Partial capture
09-11 06:33	40m	+2 / -	VK2BX	- / -	2	Partial capture
09-11 06:31	40m	+1 / -	SV8/F6BLP	- / -	2	Partial capture
09-11 06:27	40m	0 / -	TA1/TF1OL	- / -	6	Partial capture
09-11 06:21	40m	+2 / -	N1EDF	- / -	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
065615  -4  471  T77NC F5LSU JN19 (x3)
065745  -3  471  5Q1X F5LSU +02 (x2)
065900  -1  471  F5LSU GJ0KYZ +06
065915  -2  537  5Q1X F5LSU RR73
065930  -2  471  F5LSU GJ0KYZ +06
070015  -9 1323  K4YJ F5LSU JN19 (x4)
071845  -9 1851  R5BM/M F5LSU JN19
071915  -2  488  PA1EDL/J F5LSU JN19
071945  -5  488  <PJ4/DH8BQA> F5LSU R-07

10m

UTC    dB Audio  Message
083815  +7  496  JG3TRB F5LSU JN19 (x2)
095745 -21 1683  F5LSU RM8L RR73
160015  -9  754  F5LSU PY4ZP -07 (x2)

80m

UTC    dB Audio  Message
062800  +0 2728  F4LHL F5LSU 73
062830  -2 2728  EA1DR F5LSU JN19 (x2)
062915 -21 2095  F5LSU EA1DR +00
062930  -6 2728  EA1DR F5LSU R+01
063100  -2 2728  F6IRA F5LSU JN19
063115 -23 1828  F5LSU F6IRA +17
063130  -4 2728  F6IRA F5LSU R+00
063230 -10 2728  ON4CAS F5LSU JN19 (x4)
063500  -9 2728  ON3ANY F5LSU JN19 (x2)
065215 -12  434  HK3W F5LSU JN19

60m

UTC    dB Audio  Message
060745  -8  271  K1JEA F5LSU JN19
060045  -2 2233  F5LSU HB9EFK -16 (x2)
060415 -11  535  KP2B F5LSU JN19 (x2)
063630  +2 2759  KE9ZZ F5LSU JN19 (x2)
064115  -6 2759  VP2MAW F5LSU 73
064145  -2 2759  F5OYA/P F5LSU JN19 (x3)
064345  -5 2759  VE2KTF F5LSU JN19 (x3)
064615  -8 2759  F5OYA/P F5LSU JN19

20m

UTC    dB Audio  Message
112515 +10  573  RI1FJL F5LSU R-21 (x5)
112915  +8  595  KC1LMY F5LSU JN19
113015 +11  595  W4RBX F5LSU JN19
113045 +11  595  RI1FJL F5LSU JN19 (x5)
161645  -8  485  N5ZC F5LSU JN19 (x2)
161815  -6  485  RI1FJL F5LSU JN19

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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