EB5A — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Spain Most frequent locator attributed to this token: IM97

Receiver-side FT8 activity involving EB5A, decoded by SO8OO in southeastern Poland. 69 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-07-01 and 2026-09-04.

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 69 FT8 messages attributed to EB5A as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (36%), followed by 80 m (32%) and 40 m (32%). Several six-hour UTC windows tied for the largest share (72%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (74%); the estimated median was -3 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-3 dB

Estimated median S/N

Bands

80m · 22 40m · 22 20m · 25

First attributed message: 2026-07-01
Last attributed message: 2026-09-04 18:14 UTC

Observed FT8 message patterns

Attributed sample: 69 messages
Active dates: 5 UTC dates
Estimated median S/N: -3 dB
Estimated 10th-90th percentile: -12 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 18, strong (≥ -8 dB) 51.

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 EB5A in decoded directed-looking exchanges:

PD1RMB · Netherlands 9J2FI · Zambia DL3RN · Fed. Rep. of Germany PA1PXL · Netherlands PD2WL · Netherlands R3KCW · European Russia UT4QM · Ukraine YO5PHL · Romania DL2KBQ · Fed. Rep. of Germany EA5IXH · Spain EG1PDA · Spain F1PBZ · 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 EB5A

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: IM97 · 25 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,280 km (approx.)
Last such locator decoded: 2026-09-04 17:59 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	EB5A S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-04 18:09	40m	-12 / -	SQ5PTZ	- / -13	6	Partial capture
09-04 18:05	40m	- / -	SQ5PTZ	-1 / -	2	Partial capture
09-04 18:00	40m	-10 / -	EG1PDA	- / -	2	✓ Closing fragment
09-04 17:25	40m	-11 / -	HS0ZND	- / -16	5	Partial capture
09-04 17:21	40m	- / -14	RA6HJV	-7 / -	4	Partial capture
09-04 17:16	40m	- / -7	DL2KBQ	-2 / -	3	✓ Closing fragment
09-04 17:14	40m	- / -4	HA7TM	0 / -	3	✓ Closing fragment
09-04 17:12	40m	- / -13	OE6TNO	-3 / -	3	✓ Closing fragment
08-27 18:30	40m	-3 / +3	DK0ACI	-10 / -16	4	Partial capture
08-27 11:40	10m	- / -7	PD1RMB	-16 / -	3	✓ Closing fragment
08-26 21:22	80m	-2 / -17	DO9BAU	+2 / -15	10	✓ Full exchange observed
08-26 21:21	80m	-2 / -7	DO1OAS	-6 / -17	12	✓ Full exchange observed
08-26 21:09	80m	- / -	DO9BAU	+5 / -	13	Partial capture
08-26 21:09	80m	- / -	RO2X	+10 / -	4	Partial capture
08-26 21:08	80m	- / -	DK8HC	+2 / -	5	Partial capture
08-26 21:07	80m	- / +5	IK3/UY7LA	+6 / -	2	✓ Closing fragment
08-26 21:07	80m	0 / -	DO/PD1WD	- / -8	3	Partial capture
08-26 21:05	80m	- / -	OH/SM5MRW	-1 / -	11	Partial capture
08-26 21:04	80m	-4 / -8	RA6OY	+11 / -11	7	✓ Full exchange observed
08-26 21:04	80m	+1 / -2	SV9MBH	-15 / -7	5	✓ Full exchange observed
08-26 21:04	80m	-2 / -4	UA4FKT	+6 / -5	7	✓ Full exchange observed
08-26 21:02	80m	-1 / -	9K2OD	- / -	3	Partial capture
08-20 14:20	20m	- / -	DB1IUA	-4 / -	6	Partial capture
08-20 14:16	20m	-4 / -	EX8ABQ	- / -	2	Partial capture
08-20 14:14	20m	+2 / -7	R3KCW	+1 / -6	5	✓ Full exchange observed
08-20 14:11	20m	+2 / -12	DL6RH	-6 / -4	4	Partial capture
08-20 14:07	20m	-2 / -7	UT4QM	-1 / -13	5	✓ Full exchange observed
08-20 14:03	20m	-7 / -9	PD2WL	-7 / -	3	✓ Closing observed
08-20 14:02	20m	- / -19	UA4CQS	-6 / -	2	Partial capture
08-20 13:59	20m	-1 / -	DL3RN	-5 / +2	4	✓ Full exchange observed
08-20 13:57	20m	+3 / -6	PA1PXL	+1 / 0	5	✓ Full exchange observed
08-19 20:00	20m	- / -	EA3CFV	-11 / -	4	Partial capture
08-19 19:59	20m	- / -8	M7OXP	-18 / -	2	Partial capture
07-01 19:52	20m	-7 / -14	GU7DAI	-5 / -19	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
173615 -11  448  EA5IXH EB5A RR73
174415  -3  599  CQ EB5A IM97
175315 -13 2295  <...> EB5A IM97
175915 -12 2295  CQ EB5A IM97 (x2)
180015 -12 2295  EG1PDA EB5A +13 (x2)
180500  -1 1532  EB5A SQ5PTZ KO02 (x2)
180945 -10 2295  SQ5PTZ EB5A -13 (x6)

10m

UTC    dB Audio  Message
114030 -18 1960  EB5A PD1RMB JO32 (x3)

80m

UTC    dB Audio  Message
212315  +1 2202  EB5A DO9BAU JO62
212315  -3 1553  EB5A DO1OAS RR73
212330  -6 1552  DO1OAS EB5A R-17
212345  +4 2202  EB5A DO9BAU JO62
212345  -3 1553  EB5A DO1OAS RR73
212400  -4 1552  DO1OAS EB5A R-17
212415  +5 2202  EB5A DO9BAU JO62
212415  -2 1553  EB5A DO1OAS RR73
212430  +1 1553  DO1OAS EB5A R-17
212445  +1 2202  EB5A DO9BAU JO62
212445  -8 1553  EB5A DO1OAS RR73
212500  -3 1552  DO9BAU EB5A -15
212515  -1 2202  EB5A DO9BAU R-17
212530  +0 1553  DO9BAU EB5A RR73
212545  +2 2202  EB5A DO9BAU 73

20m

UTC    dB Audio  Message
141415  +7 2610  CQ EB5A IM97
141430  +0 1225  EB5A R3KCW KO90
141445  +2 2610  R3KCW EB5A -06
141500  +1 1225  EB5A R3KCW R-07
141515  +2 2610  R3KCW EB5A RR73
141530  +1 1225  EB5A R3KCW 73
141615  -4  964  EX8ABQ EB5A IM97 (x2)
142030  -6 1466  EB5A DB1IUA JO40 (x6)
193630  -4 2907  9J2FI EB5A 73

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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