RA4FEU — 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: European Russia Most frequent locator attributed to this token: LO23

Receiver-side FT8 activity involving RA4FEU, decoded by SO8OO in southeastern Poland. 17 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 1 UTC dates in the available aggregate history. Last observed 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 17 FT8 messages attributed to RA4FEU as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (88%), followed by 80 m (12%). In this small sample, the estimated median decoder S/N was -2 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-2 dB

Estimated median S/N

Bands

80m · 2 40m · 15

First attributed message: 2026-10-10
Last attributed message: 2026-10-10 17:37 UTC

Observed FT8 message patterns

Attributed sample: 17 messages
Active dates: 1 UTC dates
Estimated median S/N: -2 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 2, strong (≥ -8 dB) 14.

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 RA4FEU in decoded directed-looking exchanges:

EW4DX · Belarus R6DZR · European Russia R7IW · European Russia RL2F · Kaliningrad UF1A · European Russia RG3M · European Russia

Most frequent locator attributed to RA4FEU

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: LO23 · 8 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,639 km (approx.)
Last such locator decoded: 2026-10-10 17:37 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	RA4FEU S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-10 17:42	80m	- / -	SV1EKI	-8 / -	3	Partial capture
10-10 17:41	80m	- / -	RV3YN	-14 / -	6	Partial capture
10-10 17:40	80m	- / +6	RG3M	-2 / -	4	✓ Closing fragment
10-10 17:38	80m	- / -	9A5E	+12 / -	5	Partial capture
10-10 17:37	80m	-12 / -	R2UZ	- / 0	2	Partial capture
10-10 17:11	40m	0 / -	RN3YN	- / -	2	Partial capture
10-10 17:09	40m	+4 / -	UF1A	-4 / +3	3	✓ Full exchange observed
10-10 17:07	40m	-3 / -	RL2F	- / -12	2	✓ Closing fragment
10-10 17:06	40m	-4 / -	R6DZR	- / -9	2	✓ Closing fragment
10-10 16:56	40m	-5 / -	R7IW	- / -	3	✓ Closing fragment
10-10 16:55	40m	-1 / -4	IQ2AAH	0 / -	4	Partial capture
10-10 16:54	40m	+2 / -	EW4DX	- / -10	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
174000 +11 1971  RA4FEU 9A5E JN75
174030  -6  475  RA4FEU RG3M KO97
174030 +12 1971  RA4FEU 9A5E JN75
174100  -2  475  RA4FEU RG3M KO97
174130 -16 2128  RA4FEU RV3YN KO73
174130  +1  474  RA4FEU RG3M R+06
174200 -18 2128  RA4FEU RV3YN KO73
174200  -1  474  RA4FEU RG3M 73
174230 -12 2614  RA4FEU SV1EKI KM18
174230 -13 2129  RA4FEU RV3YN KO73
174300  -7 2614  RA4FEU SV1EKI KM18
174300 -11 2128  RA4FEU RV3YN KO73
174330  -6 2614  RA4FEU SV1EKI KM18
174330 -14 2127  RA4FEU RV3YN KO73 (x2)

40m

UTC    dB Audio  Message
165515  +0 1278  RA4FEU IQ2AAH -04
165530  -2 1277  IQ2AAH RA4FEU LO23 (x2)
165630  -1 1608  R7IW RA4FEU LO23 (x3)
170615  -4  740  R6DZR RA4FEU -09 (x2)
170745  -3 1880  RL2F RA4FEU R-12 (x2)
170930  -4  789  RA4FEU UF1A +11
170945  +4  789  UF1A RA4FEU R+03
171000  -3  789  RA4FEU UF1A RR73
171115  +1  687  RN3YN RA4FEU LO23 (x2)

10m

UTC    dB Audio  Message
100330 -17 1831  RA4FEU R7DX R-20

CW

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

Explore CW reception at SO8OO

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