EA5KDN — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Spain Most frequent locator attributed to this token: IM98

Receiver-side FT8 activity involving EA5KDN, decoded by SO8OO in southeastern Poland. 643 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 32 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-08-19.

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 643 FT8 messages attributed to EA5KDN 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 (68%), followed by 40 m (31%) and 10 m (1%). Most decodes (93%) 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

643

Messages attributed

UTC dates decoded

148

Active 15-min windows

-9 dB

Estimated median S/N

Bands

40m · 200 20m · 437 10m · 6

First attributed message: 2026-06-06
Last attributed message: 2026-08-19 02:51 UTC

Observed FT8 message patterns

Attributed sample: 643 messages
Active dates: 32 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -18 to 0 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 117, moderate (-15 to -9 dB) 225, strong (≥ -8 dB) 301.

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 EA5KDN in decoded directed-looking exchanges:

4L7T · Georgia ×2 9J2FI · Zambia ×2 DL1MKW · Fed. Rep. of Germany IZ0ZIP · Italy RX3ASQ · European Russia ZL1UHD · New Zealand 9Y4C · Trinidad & Tobago A71UN · Qatar BG7BMG · China BG7BVI · China BH2WTV · China BH4GUU · China

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 EA5KDN

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: IM98 · 250 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,203 km (approx.)
Last such locator decoded: 2026-08-19 02:36 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	EA5KDN S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-19 02:44	40m	- / -	RV6F	-24 / -	2	Partial capture
08-19 02:32	40m	- / -11	UA4FEN	-7 / -	3	Partial capture
08-19 02:21	40m	0 / -	KJ5BSW	- / -4	2	Partial capture
08-19 01:35	40m	-15 / -	V26K	- / -	3	Partial capture
08-19 01:32	40m	-13 / -	F6FDY	-12 / +2	6	✓ Full exchange observed
08-19 01:32	40m	-12 / -	EA5FD	- / -	2	✓ Closing fragment
08-19 01:30	40m	-11 / -	K8ATL	- / -11	3	✓ Closing fragment
08-19 01:27	40m	-14 / -	ON4MAP	- / -12	2	✓ Closing fragment
08-17 21:52	20m	- / -11	OA1F	-13 / -	2	✓ Closing fragment
08-16 10:32	20m	- / -	OK1DBE	+2 / -	2	Partial capture
08-16 10:24	20m	- / -14	M0PBG	+5 / -	4	✓ Closing fragment
08-14 18:01	20m	-20 / -	IZ4JMA	-5 / -	2	Partial capture
08-08 19:43	20m	- / -1	PD1HPB	-17 / -	3	✓ Closing fragment
08-08 19:40	20m	- / -15	RY7G	-1 / -	3	✓ Closing fragment
08-08 19:31	20m	- / -1	4L7T	-6 / -	2	✓ Closing fragment
08-08 19:28	20m	- / -	DJ0MAB	-8 / -	3	Partial capture
08-08 19:26	20m	- / +10	4L7T	-9 / -	4	Partial capture
08-03 19:51	40m	-3 / -	F4ACR	-21 / -	2	✓ Closing observed
08-03 19:32	40m	- / -4	G3WGC	-14 / -	2	Partial capture
08-03 19:07	40m	-4 / -	ZL1VAH	- / -16	2	✓ Closing fragment
08-03 18:48	10m	- / -	F6IQA	-6 / -	3	Partial capture
07-31 22:41	20m	-22 / -	T40FRC	- / -14	2	Partial capture
07-31 22:22	20m	-16 / -	NA6Y	- / -7	2	Partial capture
07-31 22:08	20m	-9 / -	BG7BMG	- / -	2	✓ Closing fragment
07-31 21:58	20m	+1 / -	RA3ZDU	- / -3	2	✓ Closing fragment
07-31 21:52	20m	0 / -	JA4JKO	- / -10	2	✓ Closing fragment
07-31 21:35	20m	-3 / -	DL1R	- / -2	7	Partial capture
07-31 21:33	20m	+4 / -8	F4MZI	-8 / -11	3	✓ Full exchange observed
07-31 21:31	20m	-8 / -	BH2WTV	- / -9	3	✓ Closing fragment
07-31 21:28	20m	-2 / -	BH3CFN	- / -14	4	Partial capture
07-31 10:57	20m	- / -7	EA1AEC	-13 / -	3	✓ Closing fragment
07-30 23:46	20m	-12 / -	CX6TU	- / -7	3	✓ Closing fragment
07-17 23:08	20m	-14 / -	5N0YEN	- / -21	2	Partial capture
07-16 22:56	40m	- / -4	F1PBZ	-4 / -	2	✓ Closing fragment
07-16 22:33	40m	-22 / +10	LA7DMA	-19 / -4	4	✓ Full exchange observed
07-12 00:13	20m	-20 / -	ZP5DVD	- / -19	2	Partial capture
07-11 23:31	20m	-6 / -	XU7O	- / -	2	✓ Closing fragment
07-11 23:18	20m	-10 / -	XU7O	- / -	4	Partial capture
07-10 00:58	20m	-8 / -	9Y4C	- / -13	5	✓ Closing fragment
07-10 00:18	40m	-20 / -	LB2YJ	- / -2	2	✓ Closing fragment
07-10 00:18	40m	- / -	PA3DZM	-16 / -	2	Partial capture
07-10 00:08	40m	-21 / +6	PC2J	-7 / -	4	✓ Closing observed
07-09 23:51	40m	-18 / -	EX2K	- / -17	2	Partial capture
07-09 23:33	40m	-7 / -	TJ1GD/P	- / -11	3	✓ Closing fragment
06-29 22:00	10m	-19 / -	ZL1UHD	- / -	3	✓ Closing fragment
06-27 22:58	20m	-17 / -	VK8NSB	- / -12	3	✓ Closing fragment
06-27 22:38	20m	-16 / -	BX5AA	- / -	2	✓ Closing fragment
06-27 22:29	20m	-22 / +5	Z62NS	-11 / +10	4	✓ Full exchange observed
06-27 22:02	40m	-9 / -	E75AA	-11 / -	2	Partial capture
06-27 22:00	40m	-4 / -2	S55A	-14 / +2	3	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
022100  -1 2891  KJ5BSW EA5KDN IM98 (x2)
023245  -8  924  EA5KDN UA4FEN -11 (x3)
023530 -19 2110  CQ EA5KDN IM98 (x2)
023700 -19 2107  R6OK EA5KDN RR73
023800 -15 2106  N1LUK EA5KDN -16
024000 -21 2110  UT2AU EA5KDN RR73
024100 -15 2109  OK1HEH EA5KDN 73
024330 -17 2135  EA5KDN RV4CC LO32
024430 -24 1560  EA5KDN RV6F LN14 (x2)
025145 -12  725  F6BHK EA5KDN +14

20m

UTC    dB Audio  Message
220515  -5 2898  K4PRO EA5KDN IM98
220815  -1 2843  CQ EA5KDN IM98
220845  -2 2842  OK2CNI EA5KDN -10
180130  -5  588  EA5KDN IZ4JMA JN54
180145 -24 1370  BG7BVI EA5KDN 73
180215 -20 1370  IZ4JMA EA5KDN +12
180645 -16 1058  V55LH EA5KDN IM98
102400  +4  716  EA5KDN M0PBG IO93 (x4)
103230  +2  726  EA5KDN OK1DBE JN69 (x2)
215245 -13 3131  EA5KDN OA1F -11 (x2)

10m

UTC    dB Audio  Message
131730  -3 1114  EA5KDN RX3ASQ -17 (x2)
184945 -10  544  EA5KDN IZ0ZIP -01 (x3)
185445  -9  489  EA5KDN <...> R+09
190900 -23 2077  EA5KDN DO9BAU JO62
191900 -10  943  EA5KDN DL1MKW JO40
220045 -21 1395  ZL1UHD EA5KDN 73 (x3)
231615 -12  933  EA5KDN DL1MKW 73
184845  -8  589  EA5KDN F6IQA JN13 (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.

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