EA3FAJ — 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: JN11

Receiver-side FT8 activity involving EA3FAJ, decoded by SO8OO in southeastern Poland. 69 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-11-01.

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 EA3FAJ as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (84%), followed by 20 m (16%). Most decodes (78%) fell within the six-hour window 10:00-16:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

20m · 11 10m · 58

First attributed message: 2026-06-09
Last attributed message: 2026-11-01 12:07 UTC

Observed FT8 message patterns

Attributed sample: 69 messages
Active dates: 9 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -20 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 19, moderate (-15 to -9 dB) 32, strong (≥ -8 dB) 18.

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 EA3FAJ in decoded directed-looking exchanges:

DN9SGE · Fed. Rep. of Germany EA3AKY · Spain PY2PIC · Brazil PY4BSC · Brazil SP5DRK · Poland ZZ2DX · Brazil CT1END/P · Portugal IK4CBO · Italy LA9GX · Norway PA2PF · Netherlands PE1NMM · Netherlands

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 EA3FAJ

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: JN11 · 34 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,727 km (approx.)
Last such locator decoded: 2026-11-01 12:07 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	EA3FAJ S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-01 12:05	10m	-18 / -	<...>	- / -	2	Partial capture
10-17 05:37	60m	- / -15	IK4CBO	-10 / -	4	✓ Closing fragment
10-17 05:29	60m	- / -9	PE1NMM	-4 / -	2	✓ Closing fragment
10-17 05:22	60m	- / -8	LA9GX	-1 / -	2	✓ Closing fragment
10-17 05:15	60m	- / -12	PA2PF	-13 / -	2	✓ Closing fragment
09-02 10:09	10m	- / +2	EA3AKY	-9 / -	3	✓ Closing fragment
08-19 15:18	10m	-15 / -	SP5DRK	- / -9	2	✓ Closing fragment
08-19 15:16	10m	-12 / -	PY4BSC	- / -	2	✓ Closing fragment
08-19 15:14	10m	-19 / -	PY2PIC	- / -14	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
151445 -20 1263  PY2PIC EA3FAJ JN11 (x3)
151645 -12 1265  PY4BSC EA3FAJ JN11 (x2)
151845 -14 1265  SP5DRK EA3FAJ -09 (x2)
102715 -24 1410  CQ EA3FAJ JN11
100915 -10  779  EA3FAJ EA3AKY JN01 (x3)
115515 -18 1309  <...> EA3FAJ JN11 (x4)

60m

UTC    dB Audio  Message
051515 -13  678  EA3FAJ PA2PF -12 (x2)
052230  -2  747  EA3FAJ LA9GX -08 (x2)
052930  -1 1363  EA3FAJ PE1NMM R-09 (x2)
053400  -4  780  EA3FAJ IZ4JMA JN54
053700  -9 2176  EA3FAJ IK4CBO JN54 (x4)

20m

UTC    dB Audio  Message
190400 -15 1482  CT1END/P EA3FAJ 73
192245  -9 1299  OJ0YL EA3FAJ JN11

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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