EA5IBM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Spain

Receiver-side FT8 activity involving EA5IBM, decoded by SO8OO in southeastern Poland. 19 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-07-14.

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 19 FT8 messages attributed to EA5IBM as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (79%), followed by 10 m (16%) and 40 m (5%). In this small sample, the estimated median decoder S/N was -11 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

40m · 1 20m · 15 10m · 3

First attributed message: 2026-06-07
Last attributed message: 2026-07-14 13:09 UTC

Observed FT8 message patterns

Attributed sample: 19 messages
Active dates: 8 UTC dates
Estimated median S/N: -11 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 7, strong (≥ -8 dB) 8.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with EA5IBM in decoded directed-looking exchanges:

EA1GAR · Spain PF7DKW · Netherlands RV3AMV · European Russia E75AA · Bosnia-Herzegovina EA7KRZ · Spain IZ5CMG · Italy US5HL · Ukraine HB9EOT · Switzerland HZ1TT · Saudi Arabia LZ2KV · Bulgaria ON6PL · Belgium UA3PAB · European Russia

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.

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	EA5IBM S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-13 08:15	40m	- / -16	DB2VS	-21 / -	3	Partial capture
07-14 13:08	20m	-6 / -	PA3DTN	- / -3	2	Partial capture
07-14 09:16	20m	- / -	LZ3CB	+1 / -	3	Partial capture
07-12 08:43	20m	-16 / -	EA7KRZ	- / -7	2	✓ Closing fragment
07-12 04:17	40m	- / +8	ON4MAP	-22 / -	2	Partial capture
07-12 04:12	40m	- / -13	PE1NPS	-11 / -	4	Partial capture
07-10 16:42	20m	-6 / -	2E1HAT	- / -10	2	Partial capture
07-09 02:48	40m	- / -17	UA3PAB	-6 / -	3	✓ Closing fragment
06-28 16:07	10m	- / -23	RV3AMV	-5 / -	2	✓ Closing fragment
06-28 04:16	40m	- / -5	ON6PL	-11 / -	2	✓ Closing fragment
06-26 20:48	40m	- / -17	HZ1TT	-22 / -	2	✓ Closing fragment
06-26 20:35	40m	- / -11	RC6OD	-4 / -	10	Partial capture
06-26 20:10	20m	-10 / -	KF0YOB	- / -11	2	Partial capture
06-26 20:08	20m	-8 / -6	US5HL	+4 / -8	4	✓ Full exchange observed
06-24 09:47	10m	- / -16	PF7DKW	-12 / -	4	✓ Closing fragment
06-24 09:31	20m	- / -	YO5PHL	-14 / -	2	Partial capture
06-24 08:42	20m	- / -2	F4HSB	-18 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
024815  -9 2038  EA5IBM UA3PAB KO84 (x3)
040830 -24 1552  EA5IBM DJ3JA JO44
041200  -2 2415  EA5IBM PE1NPS JO22 (x4)
041700 -21 1476  EA5IBM ON4MAP R+08 (x2)
033930 -13 1075  EA5IBM LZ2KV 73
050430  -9  373  EA5IBM HB9EOT 73
081545 -22 2012  EA5IBM DB2VS R-16 (x3)

20m

UTC    dB Audio  Message
200900  +8 2982  EA5IBM US5HL 73
201030  -9  341  KF0YOB EA5IBM -11 (x2)
093045 -12 2432  EA5IBM E75AA 73
022030 -11  729  EA5IBM TI2CC R-17
164215  -7 2850  2E1HAT EA5IBM -10 (x2)
084330 -18 1545  EA7KRZ EA5IBM -07 (x2)
085315  -3 2856  M7GFJ EA5IBM +07
091630  -4  828  EA5IBM LZ3CB KN32 (x3)
130800  -5 2847  PA3DTN EA5IBM -03 (x2)

10m

UTC    dB Audio  Message
094715 -11  680  EA5IBM EA1GAR 73
094745 -14 1589  EA5IBM PF7DKW JO21 (x4)
193300  -5  384  EA5IBM M0BEW R-02
160745  -5 2224  EA5IBM RV3AMV R-23 (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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