EA3CHO — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Spain Most frequent locator attributed to this token: JN00

Receiver-side FT8 activity involving EA3CHO, decoded by SO8OO in southeastern Poland. 380 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-10.

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 380 FT8 messages attributed to EA3CHO 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 (64%), followed by 40 m (36%). Most decodes (89%) fell within the six-hour window 18:00-00:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (79%); the estimated median was -3 dB.

Overview

380

Messages attributed

UTC dates decoded

Active 15-min windows

-3 dB

Estimated median S/N

Bands

40m · 135 20m · 245

First attributed message: 2026-06-06
Last attributed message: 2026-10-10 20:16 UTC

Observed FT8 message patterns

Attributed sample: 380 messages
Active dates: 5 UTC dates
Estimated median S/N: -3 dB
Estimated 10th-90th percentile: -11 to +8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 77, 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 EA3CHO in decoded directed-looking exchanges:

DK6WS · Fed. Rep. of Germany DK7UY · Fed. Rep. of Germany EI4JFB · Ireland F1IQH · France G3TKT · England GU4WRP · Guernsey HF1Z · Poland OE3IPU · Austria OE7DRT · Austria OK1UOZ · Czech Republic SP5SJL · Poland SP5TAB · Poland

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 EA3CHO

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: JN00 · 192 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,927 km (approx.)
Last such locator decoded: 2026-06-07 23:45 UTC

Other locator fields attributed to this token: JN11 (60).

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	EA3CHO S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-10 20:14	40m	-10 / -	SP5TAB	- / -18	2	✓ Closing fragment
10-10 20:10	40m	-7 / -	OK1UOZ	- / -25	2	✓ Closing fragment
10-10 20:01	40m	-9 / -	7X4BL	- / -	9	Partial capture
10-10 19:59	40m	-7 / -	SP5SJL	- / -12	2	✓ Closing fragment
10-10 19:48	40m	-8 / -	OD5ZZ	- / -13	17	Partial capture
10-10 19:45	40m	-6 / -	SV5BYP	- / -10	4	✓ Closing fragment
10-10 19:19	40m	-4 / -	SP2BAS	- / -24	2	Partial capture
10-10 19:16	40m	-4 / -	YO3GJE	- / -25	2	✓ Closing fragment
10-10 19:14	40m	-4 / -	HF1Z	- / +7	2	✓ Closing fragment
10-10 19:11	40m	-4 / -	GU4WRP	- / +9	3	✓ Closing fragment
10-10 19:10	40m	0 / -	OE3IPU	- / -14	2	✓ Closing fragment
10-10 19:07	40m	-8 / -	DK7UY	- / -20	2	✓ Closing fragment
10-10 19:03	40m	-14 / -	OE7DRT	- / -12	5	✓ Closing fragment
10-10 18:59	40m	-11 / -	RX9WN	- / -	6	Partial capture
10-10 18:47	40m	- / -13	PA3AGN	-8 / -	2	Partial capture
10-09 23:55	40m	- / -	RZ4FWA	-14 / -	2	Partial capture
10-09 23:47	40m	- / -	G3TKT	-4 / -	4	✓ Closing fragment
10-09 23:45	40m	- / -	UA4CCH	-2 / -	2	Partial capture
10-09 22:14	40m	- / -6	EI4JFB	-8 / -	3	✓ Closing fragment
10-08 14:11	40m	- / -12	SV7BAY	-2 / -	2	✓ Closing fragment
10-08 13:57	40m	- / -25	DL7ROB	-3 / -	3	Partial capture
10-08 13:50	40m	- / -6	F1IQH	-10 / -	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
200815  -9 2470  CQ EA3CHO JN11 (x5)
201045  -8 2470  OK1UOZ EA3CHO -25 (x2)
201245  -8 2470  CQ EA3CHO JN11 (x4)
201445 -10 2470  SP5TAB EA3CHO -18 (x2)
201545 -11 2470  CQ EA3CHO JN11 (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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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