EA7OC — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Spain Most frequent locator attributed to this token: IM77

Receiver-side FT8 activity involving EA7OC, decoded by SO8OO in southeastern Poland. 314 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 29 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-17.

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 314 FT8 messages attributed to EA7OC as the transmitting token by decoded message structure across 29 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (88%), followed by 80 m (5%) and 40 m (5%). Most decodes (57%) fell within the six-hour window 05:00-11:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.

Overview

314

Messages attributed

UTC dates decoded

Active 15-min windows

-7 dB

Estimated median S/N

Bands

160m · 3 80m · 17 40m · 17 20m · 277

First attributed message: 2026-06-06
Last attributed message: 2026-09-17 23:03 UTC

Observed FT8 message patterns

Attributed sample: 314 messages
Active dates: 29 UTC dates
Estimated median S/N: -7 dB
Estimated 10th-90th percentile: -16 to +9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 41, moderate (-15 to -9 dB) 95, strong (≥ -8 dB) 178.

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 EA7OC in decoded directed-looking exchanges:

RI0SP · European Russia ×7 7Z1BQ · Saudi Arabia 8Z1IT · Saudi Arabia A61DD · United Arab Emirates BG5BNW · China BG7BMG · China EA4RKC · Spain EC7B · Spain EJ4GRC · Ireland EU4U · Belarus F4DUZ · France F6IJT · 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 EA7OC

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: IM77 · 145 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,538 km (approx.)
Last such locator decoded: 2026-09-17 23:01 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	EA7OC S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-17 23:03	40m	- / +7	IZ8PPI	-20 / -	2	Partial capture
09-17 23:01	40m	-8 / -16	BI8AWT	-24 / -25	5	✓ Full exchange observed
09-04 22:39	160m	-10 / -	TF4M	- / -5	3	Partial capture
08-31 17:14	20m	+9 / -	HS0QEO	- / -18	3	✓ Closing fragment
08-31 17:01	20m	- / -	EA3EDU	-16 / -	3	Partial capture
08-31 16:59	20m	-5 / -	HS0QEO	- / -	5	Partial capture
08-31 16:05	20m	-1 / -16	8Z1IT	-10 / -7	3	✓ Full exchange observed
08-30 07:04	20m	-8 / -	UA3VVA	- / -	2	Partial capture
08-30 06:58	20m	-11 / 0	RC6OU	+18 / +5	5	✓ Full exchange observed
08-30 06:39	20m	+12 / -	R8QA	- / -18	4	✓ Closing fragment
08-30 06:38	20m	+8 / +4	R7RCH	+6 / +2	4	✓ Full exchange observed
08-30 05:28	20m	-6 / -	VK2GQR	- / -	4	Partial capture
08-28 19:17	80m	-22 / -	ZS6WAB	- / -	2	Partial capture
08-28 06:47	20m	+7 / -2	RV3YN	+3 / -10	7	✓ Full exchange observed
08-18 10:41	20m	-10 / -	EJ4GRC	- / +9	4	✓ Closing fragment
08-16 21:56	20m	-11 / -	8Z1IT	- / -15	9	Partial capture
08-16 20:59	40m	-13 / -	V55LH	- / -17	5	Partial capture
08-16 00:04	80m	-3 / -	VP8A	- / -17	3	Partial capture
08-15 23:59	80m	-14 / -	VP8A	- / -17	4	Partial capture
08-06 19:53	80m	-15 / -1	Z62NS	+6 / -3	7	✓ Full exchange observed
08-06 16:17	20m	+2 / -	RT4A	- / -	2	Partial capture
08-06 16:13	20m	-6 / -	R8CGT	- / -11	3	✓ Closing fragment
08-06 16:09	20m	-11 / -	OS9T	- / -10	3	✓ Closing fragment
08-06 16:07	20m	+1 / -4	7Z1BQ	-9 / 0	7	✓ Full exchange observed
08-06 16:05	20m	+5 / -	MW9LQA	- / +2	3	✓ Closing fragment
08-02 20:21	40m	-8 / -	R4NBV	-12 / -13	4	✓ Closing observed
08-02 20:15	40m	-8 / -	EB2EMZ	- / 0	2	✓ Closing fragment
07-30 18:09	20m	-6 / -	EC7B	-12 / -	4	✓ Full exchange observed
07-27 08:09	20m	-3 / -	<...>	- / -11	6	Partial capture
07-25 16:31	20m	-12 / -	VU3KOD	- / -13	2	Partial capture
07-20 22:58	20m	+2 / -	VP5G	- / -5	3	Partial capture
07-17 08:08	20m	-2 / -	UB0SMX/P	- / -	2	Partial capture
07-17 07:58	20m	+5 / -	UB0SMX/P	- / -	5	Partial capture
07-15 06:41	20m	-4 / -	RI0SP	- / -11	2	✓ Closing fragment
07-15 06:33	20m	-12 / -	RI0SP	- / -11	2	Partial capture
07-15 05:55	20m	-10 / -	RI0SP	- / -	3	Partial capture
07-14 19:14	20m	+1 / -	EA4RKC	- / -3	3	✓ Closing fragment
07-14 18:39	20m	- / -	F4IIX	-2 / -	2	Partial capture
07-14 18:38	20m	0 / -	RI0SP	- / -15	2	✓ Closing fragment
07-14 05:43	20m	-7 / -	RM5C	- / -20	3	Partial capture
07-14 05:41	20m	-7 / -	R2EN	- / -9	3	✓ Closing fragment
07-14 05:37	20m	+3 / -	RI0SP	- / -	3	Partial capture
07-13 10:14	20m	-8 / -	OE7MAH	- / -13	2	✓ Closing fragment
07-13 10:11	20m	-13 / -	RI0SP	- / -10	5	✓ Closing fragment
07-13 09:42	20m	-7 / -	RI0SP	- / -	5	✓ Closing fragment
07-13 09:38	20m	0 / -	RI0SP	- / -	3	Partial capture
07-13 07:23	20m	0 / -4	RA5CW	-16 / -9	6	Partial capture
07-13 07:19	20m	-13 / -	R7RZ	- / -	3	Partial capture
07-13 07:17	20m	-18 / -	F6IJT	- / -	2	✓ Closing fragment
07-13 07:17	20m	-21 / -	F4HSB	-21 / +1	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
202215 -12 2513  EA7OC R4NBV 73
205715 -12 1090  V55LH EA7OC IM77 (x6)
230145  -7 1985  BI8AWT EA7OC IM77
230200 -24 1932  EA7OC BI8AWT -16
230215 -10 1985  BI8AWT EA7OC R-25 (x3)
230330 -20 1530  EA7OC IZ8PPI +07
230430  -7  604  EA7OC PA2KV JO33
230430 -20 1530  EA7OC IZ8PPI +07

10m

UTC    dB Audio  Message
100515 -23 1330  EA7OC UA9JCH R-14

160m

UTC    dB Audio  Message
223900 -11 2642  TF4M EA7OC -05 (x3)

20m

UTC    dB Audio  Message
070515  -3 2218  UA3VVA EA7OC IM77
160530 -10 2431  EA7OC 8Z1IT -16
160545  -1 1828  8Z1IT EA7OC R-07
160600 -10 2431  EA7OC 8Z1IT RR73
165945  -7 1706  HS0QEO EA7OC IM77 (x3)
170130 -15 1320  EA7OC EA3EDU JN01 (x2)
170245  -2 1069  HS0QEO EA7OC IM77
170300 -17 1320  EA7OC EA3EDU JN01
170345  +1 1069  HS0QEO EA7OC IM77 (x4)

80m

UTC    dB Audio  Message
195430 -18 1092  Z62NS EA7OC IM77 (x3)
195645  +5  915  EA7OC Z62NS R-01
195700 -12  916  Z62NS EA7OC RR73
195715  +6  915  EA7OC Z62NS 73
235930 -18 1652  VP8A EA7OC IM77 (x7)
191745 -23 1580  ZS6WAB EA7OC IM77 (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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