F4IDN — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: France Most frequent locator attributed to this token: IN97

Receiver-side FT8 activity involving F4IDN, decoded by SO8OO in southeastern Poland. 566 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 44 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-19.

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 566 FT8 messages attributed to F4IDN as the transmitting token by decoded message structure across 44 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (52%), followed by 20 m (18%) and 80 m (14%). Most decodes (57%) fell within the six-hour window 05:00-11:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

566

Messages attributed

UTC dates decoded

131

Active 15-min windows

-8 dB

Estimated median S/N

Bands

80m · 79 60m · 14 40m · 76 20m · 102 10m · 295

First attributed message: 2026-06-08
Last attributed message: 2026-09-19 21:33 UTC

Observed FT8 message patterns

Attributed sample: 566 messages
Active dates: 44 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -17 to +4.7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 76, moderate (-15 to -9 dB) 181, strong (≥ -8 dB) 309.

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 F4IDN in decoded directed-looking exchanges:

UA4FKT · European Russia ×2 G0TSM/P · England ×2 CN2DX · Morocco DG4HAD · Fed. Rep. of Germany DL1TRK · Fed. Rep. of Germany DL9XJ · Fed. Rep. of Germany DN9SGE · Fed. Rep. of Germany EA3CUU · Spain ES3NA · Estonia F1PBZ · France F1UGD · France F4DWY · France

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 F4IDN

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: IN97 · 399 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,687 km (approx.)
Last such locator decoded: 2026-09-19 21:33 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	F4IDN S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-19 21:29	80m	+4 / -13	RW1CW	-1 / -2	6	✓ Full exchange observed
09-19 21:28	80m	+4 / -	CN8DN	- / -	2	Partial capture
09-19 06:53	40m	-8 / -	HK3W	- / -	2	Partial capture
09-19 06:05	60m	-20 / -	WQ1C	- / -23	2	Partial capture
09-19 05:48	80m	-17 / -	EA3IJQ	- / -	3	Partial capture
09-17 05:36	80m	-9 / -	6Y5HN	- / -	3	Partial capture
09-17 05:33	80m	-11 / -	6Y5HN	- / -	3	Partial capture
09-17 05:31	80m	-8 / -	IS0LAY	- / -	2	Partial capture
09-17 05:28	80m	-15 / -15	DL4SZB	0 / -9	5	✓ Full exchange observed
09-17 05:22	80m	- / -9	SN40KZE	+13 / -	2	Partial capture
09-17 05:16	80m	-9 / -	C31KC	- / -	6	✓ Closing fragment
09-15 05:46	80m	-20 / -	N6PM	- / -	2	Partial capture
09-14 22:24	40m	+6 / -	YE4FHY	- / -	4	Partial capture
09-14 22:22	40m	+1 / -	D44TWO	- / -	2	Partial capture
09-14 22:16	40m	-4 / -	VR2ZXP	- / -	3	Partial capture
09-14 22:10	40m	-4 / -10	JY5IB	-6 / -6	5	✓ Full exchange observed
09-14 22:07	40m	0 / 0	OH8JJ	-24 / -11	4	✓ Full exchange observed
09-14 22:03	40m	-3 / -	JY5IB	- / -	4	Partial capture
09-14 22:02	40m	+2 / -	4L7T	- / -	2	Partial capture
09-14 21:58	40m	-7 / -	BI4IWL	- / -15	3	Partial capture
09-14 21:54	40m	-10 / -	IR0IADU	- / -	2	Partial capture
09-14 21:53	40m	-7 / -	BD8FOD	- / -	2	Partial capture
09-14 21:48	40m	-3 / -	TN8GD	- / -17	2	Partial capture
09-14 05:30	60m	- / -13	SP9CSE	+6 / -	3	✓ Closing fragment
09-14 05:21	60m	-17 / -	WW3K	- / -19	3	✓ Closing fragment
09-13 05:33	80m	-22 / -	9Z4A	- / -18	4	✓ Closing fragment
09-13 05:26	80m	-15 / -	G0TSM/P	- / -	6	Partial capture
09-13 05:22	80m	-21 / -	KJ5IAI	- / -	3	Partial capture
09-13 05:19	80m	-17 / -	WB9W	- / -11	4	✓ Closing fragment
09-12 20:28	60m	- / -7	F5JAE	-18 / -	2	✓ Closing fragment
09-12 20:22	60m	-14 / -	M0TBQ	- / -5	3	✓ Closing fragment
09-12 20:10	60m	-16 / +10	G3UHU	-8 / -1	5	✓ Full exchange observed
09-12 20:04	60m	-12 / -	G0TSM/P	- / -	2	✓ Closing fragment
08-31 15:03	20m	+3 / -	EA7HS	- / -	3	Partial capture
08-31 15:00	20m	+4 / -	EA7R	-8 / +3	5	✓ Full exchange observed
08-31 14:55	20m	-1 / -	EA7HS	- / -	3	Partial capture
08-29 07:37	20m	-2 / -	VK4KTW	- / -	3	Partial capture
08-27 07:26	10m	-4 / -	RU3GF	- / -2	3	✓ Closing fragment
08-27 07:21	10m	-17 / -	YO4RDN	- / -6	5	✓ Closing fragment
08-27 05:26	40m	-11 / -	W9COS	- / -	3	Partial capture
08-25 06:14	40m	-20 / -	K8RRD	- / -	2	Partial capture
08-25 06:10	40m	-13 / -	K8RRD	- / -	3	Partial capture
08-24 09:55	10m	-15 / -	SM6DVJ	- / -18	3	✓ Closing fragment
08-24 06:14	40m	- / -	GJ0KYZ	-9 / -	3	Partial capture
08-24 06:11	40m	-10 / -	EA7KPC	- / -18	3	Partial capture
08-24 06:10	40m	-12 / -	WN0KS	- / -23	3	✓ Closing fragment
08-22 08:14	10m	-18 / -13	F1PBZ	0 / -8	5	✓ Full exchange observed
08-22 07:57	10m	-6 / -	RN7B	- / -	2	Partial capture
08-21 15:33	10m	-20 / -	SP4NKU	- / 0	2	✓ Closing fragment
08-21 15:25	10m	-3 / -	R7WA	- / -	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
053630  -8 2594  6Y5HN F4IDN IN97 (x3)
054815 -20 2401  EA3IJQ F4IDN IN97 (x3)
212845  +4 2745  CN8DN F4IDN IN97
212930  +1 1955  F4IDN RW1CW KO59
212945  +5 2745  CN8DN F4IDN IN97
213000  +0 1955  F4IDN RW1CW KO59
213015  +4 2745  RW1CW F4IDN -02
213030  -2 1955  F4IDN RW1CW R-13
213045  +4 2745  RW1CW F4IDN RR73
213100  -2 1955  F4IDN RW1CW 73
213345  +2 2745  CN8DN F4IDN IN97

40m

UTC    dB Audio  Message
221115  -6 2855  JY5IB F4IDN R-06
221130  -5 1397  F4IDN JY5IB RR73
221145  -6 2855  JY5IB F4IDN 73
221600  -5 2855  VR2ZXP F4IDN IN97 (x3)
222200  +0 2854  D44TWO F4IDN IN97 (x2)
222415  +2 2854  YE4FHY F4IDN IN97 (x4)
060245  -8  574  W6G F4IDN 73
065330 -12 2791  HK3W F4IDN IN97 (x2)

60m

UTC    dB Audio  Message
202215 -12 1607  M0TBQ F4IDN IN97 (x3)
202830 -18 1607  F4IDN F5JAE -07 (x2)
060330 -16  890  F4IDN EH3PDA +00
052130 -15 1239  WW3K F4IDN IN97 (x3)
052530 -15 2272  W1ATV F4IDN 73
053015  +5 1671  F4IDN SP9CSE KO00 (x3)
060500 -18 1555  WQ1C F4IDN IN97 (x2)

20m

UTC    dB Audio  Message
092330 -21 2530  MM0VIK F4IDN IN97
073730  -5 2819  VK4KTW F4IDN IN97 (x3)
145515  +0 2724  EA7HS F4IDN IN97 (x3)
150045  +4 2723  EA7R F4IDN IN97
150100 -11 2443  F4IDN EA7R +18
150115  +5 2723  EA7R F4IDN R+03
150130  -5 2443  F4IDN EA7R RR73
150145  +4 2723  EA7R F4IDN 73
150345  +7 2723  EA7HS F4IDN IN97 (x3)

10m

UTC    dB Audio  Message
081545 -18 2022  F1PBZ F4IDN 73
095500 -17 2393  SM6DVJ F4IDN IN97 (x3)
072130 -21 2140  YO4RDN F4IDN IN97 (x5)
072445  +2 2643  UA3GX F4IDN IN97
072615  -1 2704  RU3GF F4IDN IN97 (x3)
072900  -1 2704  R4RM F4IDN IN97
073300  -7 2710  RD4WM F4IDN IN97

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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