F4EDB — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: France Most frequent locator attributed to this token: IN96

Receiver-side FT8 activity involving F4EDB, decoded by SO8OO in southeastern Poland. 775 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 55 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-11.

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 775 FT8 messages attributed to F4EDB as the transmitting token by decoded message structure across 55 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (84%), followed by 40 m (13%) and 10 m (3%). The busiest six-hour window was 14:00-20:00 UTC, containing 49% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

775

Messages attributed

UTC dates decoded

190

Active 15-min windows

-10 dB

Estimated median S/N

Bands

40m · 102 20m · 649 10m · 24

First attributed message: 2026-06-07
Last attributed message: 2026-09-11 06:07 UTC

Observed FT8 message patterns

Attributed sample: 775 messages
Active dates: 55 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -18.9 to 0 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 158, moderate (-15 to -9 dB) 297, strong (≥ -8 dB) 320.

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 F4EDB in decoded directed-looking exchanges:

IQ4JO · Italy ×4 F1PBZ · France ×3 RN6MA · European Russia ×2 DK3TNA · Fed. Rep. of Germany ×2 DL4GHS · Fed. Rep. of Germany ×2 F1DXP · France ×2 IK4LZH · Italy ×2 LZ3CB · Bulgaria ×2 OE6TNO · Austria ×2 PC2J · Netherlands ×2 RL6MT · European Russia ×2 SV2HTW · Greece ×2

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 F4EDB

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: IN96 · 409 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,724 km (approx.)
Last such locator decoded: 2026-09-11 06:07 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	F4EDB S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-08 02:42	40m	- / -15	UR4QWW	-20 / -	3	✓ Closing fragment
09-08 02:26	40m	- / -19	UR9QQ	-7 / -	6	✓ Closing fragment
09-03 03:07	40m	-11 / -19	4X1UF	-13 / -	18	Partial capture
09-03 02:59	40m	- / -18	UG4P	-13 / -	2	Partial capture
09-03 02:56	40m	- / -	UA3POG	-11 / -	7	Partial capture
09-01 04:10	40m	-12 / -	CN8NS	-18 / -9	3	✓ Closing observed
08-31 10:56	20m	+3 / -	CU3HN	- / -11	3	✓ Closing fragment
08-31 02:40	40m	-12 / -	TI2ALF	- / -19	2	Partial capture
08-31 02:37	40m	-11 / -13	KP4LCA	-16 / -21	5	✓ Full exchange observed
08-31 01:49	40m	-18 / -	OK1WCF	- / -3	2	✓ Closing fragment
08-31 01:01	40m	-10 / -	IZ8PPI	- / -10	2	✓ Closing fragment
08-31 00:59	40m	-14 / -21	R6LE	+1 / -12	6	✓ Full exchange observed
08-31 00:41	40m	-12 / -12	R2AL	-3 / -10	5	✓ Full exchange observed
08-31 00:39	40m	-12 / -	CT3IQ	- / -17	4	✓ Closing fragment
08-31 00:37	40m	-12 / -	AA1SU	- / -	2	Partial capture
08-31 00:31	40m	-12 / -17	RA4PIS	-4 / -15	7	✓ Full exchange observed
08-31 00:29	40m	-10 / -	YV5GPA	- / -16	2	✓ Closing fragment
08-30 07:58	20m	-18 / -	HK3W	- / -	2	Partial capture
08-30 07:54	20m	-4 / -	RX3ASQ	- / -	4	Partial capture
08-30 07:45	20m	- / -	F5PBG	-8 / -	2	Partial capture
08-30 07:43	20m	-10 / -	IW8PQ	- / -2	3	✓ Closing fragment
08-30 06:58	20m	-4 / -	SQ8NGI	- / -9	3	✓ Closing fragment
08-30 06:49	20m	0 / -	VK1KAZ	- / -	2	Partial capture
08-30 06:48	20m	-1 / +1	R4QB	0 / 0	5	✓ Full exchange observed
08-30 06:46	20m	-2 / -	SQ3LMR	- / -10	4	✓ Closing fragment
08-30 06:44	20m	+5 / -	9A5E	- / +3	3	✓ Closing fragment
08-30 06:42	20m	+4 / -	EA8DHQ	- / -13	4	✓ Closing fragment
08-30 06:40	20m	+12 / -	YO9IAB	- / -4	4	✓ Closing fragment
08-30 06:39	20m	+13 / -10	F1DXP	-8 / -15	5	✓ Full exchange observed
08-30 06:35	20m	-1 / -	YO3RU	- / -8	2	✓ Closing fragment
08-30 06:14	20m	- / -8	IU7VOL	-4 / -	2	✓ Closing fragment
08-30 06:10	20m	-12 / +1	OH8MXJ	-2 / -12	5	✓ Full exchange observed
08-30 06:08	20m	-13 / -12	R7DX	+11 / -	3	✓ Closing observed
08-30 06:07	20m	-16 / -	EW1MN	- / -11	2	✓ Closing fragment
08-30 06:01	20m	- / -20	R6OP	-6 / -	3	✓ Closing fragment
08-30 04:12	40m	- / -	YO6LM	+10 / -	2	Partial capture
08-27 09:18	20m	-4 / -	VK6OX	- / -20	2	✓ Closing fragment
08-27 06:54	20m	-8 / -7	EC5M	-8 / -11	6	✓ Full exchange observed
08-27 06:53	20m	-8 / -	VK4VCC	- / -15	3	✓ Closing fragment
08-27 05:33	20m	-16 / -	VK3XV	- / +9	2	Partial capture
08-27 05:30	20m	-6 / -	AG6X	- / -16	3	✓ Closing fragment
08-27 04:05	20m	- / -11	KE4EB	-12 / -	4	✓ Closing fragment
08-27 03:27	40m	- / -1	SV2HTW	+3 / -	3	✓ Closing fragment
08-27 02:58	20m	- / -6	K2TQC	-22 / -	2	✓ Closing fragment
08-25 02:28	20m	- / -9	KN4WJY	-16 / -	2	Partial capture
08-23 19:18	20m	- / -5	EA3AGF	-5 / -	3	✓ Closing fragment
08-23 16:42	20m	-8 / -	PA3BMB	- / +2	2	✓ Closing fragment
08-23 07:09	20m	-6 / -	DF1KG	- / -11	2	✓ Closing fragment
08-23 07:01	20m	-1 / -	F4BYA	- / -17	3	Partial capture
08-23 05:43	20m	-9 / -	VK1HW	- / -16	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
015000 -15 1859  CQ F4EDB IN96
022645 -11 1044  F4EDB UR9QQ KN77 (x6)
024245 -16 1632  F4EDB UR4QWW KN77 (x3)
035915 -23 1859  W4PSK F4EDB IN96
055515  -5 1154  F4EDB DH5BM JO41
020900  -9 1296  CQ F4EDB IN96 (x3)

20m

UTC    dB Audio  Message
075445  -4 1211  RX3ASQ F4EDB IN96 (x4)
075830 -19 1375  HK3W F4EDB IN96 (x2)
045800 -24 1821  CQ F4EDB IN96 (x3)
105630  +5 2258  CU3HN F4EDB -11 (x3)
155030 -11 1924  CQ F4EDB IN96 (x2)
155130  +5  513  RV9CD F4EDB IN96

10m

UTC    dB Audio  Message
154000 -12  711  F4EDB DN9ETS JO41
154330  +2  638  F4EDB DJ3HW JO30 (x3)
160445  -6 1592  F4EDB PD4FL R-21 (x2)
160745  +2  491  F4EDB DL9ATW R-14 (x3)
161415  -6 1276  F4EDB DF7EE JO40 (x3)
162230 -15 1485  F4EDB DO3PKE JO61 (x2)
182730 -22 1441  LU2DYH F4EDB IN96

80m

UTC    dB Audio  Message
002845  +0 1818  F4EDB F5RRS JN36 (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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee