R4FET — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia

Receiver-side FT8 activity involving R4FET, decoded by SO8OO in southeastern Poland. 45 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-08-25.

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 45 FT8 messages attributed to R4FET as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (42%), followed by 20 m (31%) and 160 m (24%). Several six-hour UTC windows tied for the largest share (69%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-14 dB

Estimated median S/N

Bands

160m · 11 80m · 19 40m · 1 20m · 14

First attributed message: 2026-06-10
Last attributed message: 2026-08-25 11:44 UTC

Observed FT8 message patterns

Attributed sample: 45 messages
Active dates: 8 UTC dates
Estimated median S/N: -14 dB
Estimated 10th-90th percentile: -18 to -6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 16, moderate (-15 to -9 dB) 22, strong (≥ -8 dB) 7.

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 R4FET in decoded directed-looking exchanges:

R9FF · European Russia UA1TAN · European Russia UA9LLE · Asiatic Russia UD8S · Asiatic Russia BG5JGG · China GJ0KYZ · Jersey R2FDP/P · Kaliningrad RA9J · Asiatic Russia RK9UN · Asiatic Russia S59A · Slovenia EW4DX · Belarus R6ML · 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	R4FET S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-25 11:43	20m	-14 / -	R2FDP/P	- / -9	3	✓ Closing fragment
08-22 19:31	160m	- / -8	RT2P	-9 / -	6	Partial capture
08-22 19:30	160m	-14 / -5	UD8S	-14 / -2	4	✓ Full exchange observed
08-22 19:28	160m	-12 / -	UA9LLE	- / -19	2	✓ Closing fragment
08-22 19:26	160m	-15 / 0	UA1TAN	-9 / +2	3	✓ Full exchange observed
08-22 19:24	160m	-14 / -	R9FF	- / -14	2	✓ Closing fragment
08-22 19:22	160m	-17 / -	<...>	- / -16	3	Partial capture
08-22 19:18	80m	-4 / -14	RA9FDR	-23 / -8	4	✓ Full exchange observed
08-22 19:16	80m	- / 0	R4HHN	+2 / -	4	✓ Closing fragment
08-22 19:15	80m	-6 / 0	UF4S/P	-7 / -3	4	✓ Full exchange observed
08-21 18:43	80m	-16 / -9	R2DRE	-4 / -	3	✓ Closing observed
08-21 18:41	80m	-11 / -5	UA4HBJ	-15 / +1	5	✓ Full exchange observed
08-21 18:41	80m	-18 / -	UB0SMX/P	- / -10	3	✓ Closing fragment
08-21 18:37	80m	-16 / -3	RU3NCW	+6 / +1	4	✓ Full exchange observed
08-21 18:36	80m	-14 / -3	RA3WY	-6 / -2	5	✓ Full exchange observed
08-21 18:34	80m	-14 / -8	R1NO	-12 / -	3	✓ Closing observed
08-21 18:32	80m	-10 / -9	RU5X	-23 / 0	2	Partial capture
08-21 18:31	80m	-11 / -8	RX3DRC	-19 / -	3	✓ Closing observed
08-14 13:57	20m	-16 / -	BG5JGG	- / -18	2	✓ Closing fragment
07-10 13:29	20m	- / -5	RK9UN	-8 / -	2	✓ Closing fragment
07-08 17:37	40m	- / +2	R7NO	-18 / -	2	Partial capture
06-27 02:34	40m	- / -16	R2RCQ	-20 / -	2	Partial capture
06-27 02:32	40m	- / -12	EW4DX	-7 / -	5	✓ Closing fragment
06-25 18:19	20m	- / +3	GJ0KYZ	+5 / -	2	✓ Closing fragment
06-25 18:15	20m	- / -5	S59A	+4 / -	2	✓ Closing fragment
06-25 18:01	80m	-12 / -	RN2T	- / -1	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
181945  +6  608  R4FET GJ0KYZ R+03 (x2)
182245 -11 2833  R4FET DL7ARV JO62
114530 -21 1604  R9FGJ R4FET -18
174130 -18 1828  R4FET R9FAK R-07
132900  -9 2304  R4FET RK9UN R-05 (x2)
135600 -24 1615  BG5BNW R4FET -05
135700 -16 1615  BG5JGG R4FET -18 (x2)
140015 -13  828  R4FET RA9J 73
044100 -12 2479  R4FET R8AGW R-01
114315 -17 1987  R2FDP/P R4FET -09 (x3)

160m

UTC    dB Audio  Message
192630 -13 1937  UA1TAN R4FET +02
192715  -9 1706  R4FET UA1TAN R+00
192730 -17 1937  UA1TAN R4FET RR73
192800 -12 1937  UA9LLE R4FET -19 (x2)
193015 -12 1812  R4FET UD8S -05
193030 -14 1937  UD8S R4FET R-02
193045 -16 1812  R4FET UD8S RR73
193100 -15 1937  UD8S R4FET 73
193145 -14 1937  R4FET RT2P R-08 (x6)

80m

UTC    dB Audio  Message
184330  -4 1014  R4FET R2DRE -09 (x2)
184415 -16 1345  R2DRE R4FET 73
191545  -7 2346  UF4S/P R4FET -03
191600  -6 1058  R4FET UF4S/P R+00
191615  -6 1059  UF4S/P R4FET RR73
191630  -8 1058  R4FET UF4S/P 73
191630  -5  870  R4FET R4HHN LO43 (x4)
191815  -4 2104  RA9FDR R4FET -08
191830 -23 2103  R4FET RA9FDR R-14
191845  -5 2103  RA9FDR R4FET RR73
191900 -23 2103  R4FET RA9FDR 73

40m

UTC    dB Audio  Message
023200  -9  605  R4FET EW4DX KO23 (x4)
023400 -20 1850  R4FET R2RCQ KO85
023400  -6  605  R4FET EW4DX 73
023430 -21 1851  R4FET R2RCQ R-16
173700 -17 1536  R4FET R7NO R+02 (x2)
173915 -20 1543  R1BJA R4FET -05
164030 -13 2378  R4FET R6ML 73
171545 -23 1646  R4FET UA3YPS 73

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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