EA5N — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Spain Most frequent locator attributed to this token: JM08

Receiver-side FT8 activity involving EA5N, decoded by SO8OO in southeastern Poland. 771 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 47 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-13.

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 771 FT8 messages attributed to EA5N as the transmitting token by decoded message structure across 47 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (73%), followed by 40 m (24%) and 10 m (4%). The busiest six-hour window was 15:00-21:00 UTC, containing 40% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (76%); the estimated median was -1 dB.

Overview

771

Messages attributed

UTC dates decoded

151

Active 15-min windows

-1 dB

Estimated median S/N

Bands

40m · 184 20m · 560 10m · 27

First attributed message: 2026-06-07
Last attributed message: 2026-09-13 19:46 UTC

Observed FT8 message patterns

Attributed sample: 771 messages
Active dates: 47 UTC dates
Estimated median S/N: -1 dB
Estimated 10th-90th percentile: -13 to +11 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 33, moderate (-15 to -9 dB) 155, strong (≥ -8 dB) 583.

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 EA5N in decoded directed-looking exchanges:

RI1ZR · European Russia ×3 TK5K · Corsica ×2 K2B · United States ×2 OX3LX · Greenland ×2 RI0SP · European Russia ×2 UD8S · Asiatic Russia YG2AUD · Indonesia 6D2WWA · Mexico 7X2KF · Algeria 8Z1IT · Saudi Arabia 9M2RSI · West Malaysia AF0E · 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 EA5N

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: JM08 · 215 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,077 km (approx.)
Last such locator decoded: 2026-09-13 19:46 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	EA5N S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-15 18:38	40m	- / -	EA5AOK	-14 / -	2	Partial capture
09-13 19:43	40m	+13 / -	SV/OE3PKB	- / -	6	Partial capture
09-13 19:42	40m	+7 / -	JY5IB	- / -14	2	Partial capture
09-08 15:33	40m	-18 / -2	Z68PX	-10 / -13	10	✓ Full exchange observed
09-07 06:12	40m	- / -11	OH3OJ	-10 / -	2	Partial capture
09-03 20:37	40m	- / -	DJ0MAB	+2 / -	2	Partial capture
09-03 20:36	40m	+6 / -	JJ2IJU	-14 / -20	3	✓ Closing observed
09-03 20:36	40m	- / +4	G8IXM	-8 / -	5	Partial capture
09-03 20:35	40m	+6 / -9	JH4IFF	-8 / -7	4	✓ Full exchange observed
09-03 20:33	40m	+6 / -	JF1UVJ	-7 / -10	3	✓ Closing observed
09-03 18:05	40m	+7 / -	UA9SAV	- / -5	2	✓ Closing fragment
09-03 18:00	40m	- / -	DL9KM	0 / -	7	Partial capture
09-03 17:59	40m	0 / -	YG2CBI	- / -15	2	✓ Closing fragment
09-03 17:51	40m	0 / -	EB3JT	- / +1	2	✓ Closing fragment
09-03 17:50	40m	-2 / -	EA5IXH	- / -16	2	✓ Closing fragment
09-02 21:07	40m	- / -	G8IXM	-16 / -	3	Partial capture
09-02 21:06	40m	- / -	DJ0MAB	-4 / -	3	Partial capture
09-02 21:05	40m	- / -13	JF4HDR	-14 / -	2	Partial capture
09-02 21:05	40m	+13 / -9	JA5XAE	-19 / -	2	✓ Closing observed
09-02 21:04	40m	+12 / -2	DL3MIB	+12 / -6	11	✓ Full exchange observed
09-02 21:03	40m	- / -	JF1UVJ	-12 / -	3	Partial capture
09-02 21:02	40m	+10 / -	OK1WCF	- / -17	2	✓ Closing fragment
09-02 21:02	40m	+11 / +5	2E0ROJ	-12 / -19	5	✓ Full exchange observed
09-02 21:01	40m	- / -	PA2KV	+2 / -	2	Partial capture
09-02 21:01	40m	- / -	F5PBG	-7 / -	2	Partial capture
09-02 20:59	40m	+10 / +1	TA7MMI	-10 / -17	5	✓ Full exchange observed
09-02 20:58	40m	+12 / -11	JG3TRB	-12 / -17	4	✓ Full exchange observed
09-02 20:57	40m	- / -	UB3BDJ	-10 / -	2	Partial capture
09-02 20:57	40m	- / -	F5PBG	-6 / -	3	Partial capture
09-02 20:55	40m	- / -	DL3MIB	+13 / -	7	Partial capture
09-02 20:55	40m	+5 / -11	JR3REX	-13 / -20	5	✓ Full exchange observed
09-02 20:53	40m	+5 / 0	CN8NS	-13 / -8	4	✓ Full exchange observed
09-02 10:34	10m	- / -	IK2YYO	-10 / -	3	Partial capture
08-30 21:06	40m	+6 / -	RI1FJL	- / -18	11	Partial capture
08-28 17:30	40m	-5 / -	VK1MA	- / -9	3	Partial capture
08-28 17:27	40m	-5 / -	9W2WKP	- / -12	4	✓ Closing fragment
08-28 17:26	40m	-5 / -	BG0HP	- / -10	3	✓ Closing fragment
08-28 17:26	40m	- / -	DL9KM	-5 / -	4	Partial capture
08-28 17:24	40m	-4 / -14	JF1FSR	-7 / -16	3	✓ Full exchange observed
08-26 05:43	20m	+11 / -	KW8CW	- / -13	2	Partial capture
08-26 05:41	20m	+12 / -	N8WRC	- / -12	3	✓ Closing fragment
08-26 05:40	20m	- / -	N1UL	-12 / -	3	Partial capture
08-26 05:39	20m	+4 / -	NI6CH	- / -7	2	✓ Closing fragment
08-26 05:37	20m	+4 / -	W6CQR	- / -10	2	✓ Closing fragment
08-26 05:36	20m	-2 / -	K6AGA	- / -14	2	✓ Closing fragment
08-26 05:34	20m	+10 / -	W6AC	- / -4	2	✓ Closing fragment
08-26 05:32	20m	+4 / -	N1UL	- / -12	3	Partial capture
08-26 05:31	20m	+6 / -	AF0E	- / -3	2	✓ Closing fragment
08-26 05:30	20m	+10 / -	K5RSB	- / -6	2	✓ Closing fragment
08-26 05:29	20m	+6 / -	KB0IWW	- / -16	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
153645 -17 1145  Z68PX EA5N R-13
153700  -9  588  EA5N Z68PX RR73 (x2)
050130  -8 2632  GX4RAF/P EA5N JM08
194245  +7 2385  JY5IB EA5N JM08 (x2)
194330 -12 2385  EA5N M1EAG IO92
194345 +13 2385  SV/OE3PKB EA5N JM08 (x6)
183830 -15  766  EA5N EA5AOK IM99 (x2)

10m

UTC    dB Audio  Message
061845  -9  568  RA9CAD EA5N -11 (x2)
062115  -9  568  5B4ARQ EA5N +01
170100 -13  851  EA5N PD2V JO22
170230 -10  853  EA5N IU4QRO JN54 (x4)
172045 -18 1750  EA5N F4FSY -14
172245 -15  852  EA5N PD1WMD R-01
172415 -21 1622  EA5N F4FSY -16
070945 -11 1009  <...> EA5N -07
103415 -11 1681  EA5N IK2YYO JN55 (x3)

20m

UTC    dB Audio  Message
053815  +6  624  CQ DX EA5N JM08 (x2)
053915  +2  624  NI6CH EA5N -07 (x2)
054000 -14 2465  EA5N N1UL EL95
054015  +9  624  CQ DX EA5N JM08
054030 -11 2466  EA5N N1UL EL95
054045 +15  624  CQ DX EA5N JM08
054115 +16  627  N8WRC EA5N -12
054130 -11 2466  EA5N N1UL EL95
054145 +10  624  N8WRC EA5N -12 (x2)
054245 +13  624  CQ DX EA5N JM08
054315 +12  624  KW8CW EA5N -13 (x2)

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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