R4FED — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: LO23

Receiver-side FT8 activity involving R4FED, decoded by SO8OO in southeastern Poland. 179 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 12 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-08-29.

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 179 FT8 messages attributed to R4FED as the transmitting token by decoded message structure across 12 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (64%), followed by 20 m (22%) and 10 m (9%). Most decodes (86%) fell within the six-hour window 14:00-20:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (69%); the estimated median was -5 dB.

Overview

179

Messages attributed

UTC dates decoded

Active 15-min windows

-5 dB

Estimated median S/N

Bands

80m · 114 40m · 9 20m · 40 10m · 16

First attributed message: 2026-06-06
Last attributed message: 2026-08-29 19:14 UTC

Observed FT8 message patterns

Attributed sample: 179 messages
Active dates: 12 UTC dates
Estimated median S/N: -5 dB
Estimated 10th-90th percentile: -18 to +3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 31, moderate (-15 to -9 dB) 24, strong (≥ -8 dB) 124.

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 R4FED in decoded directed-looking exchanges:

IK4LZH · Italy ×2 F4FSY · France M0BEW · England PD0HLA · Netherlands RA7Z · European Russia 9A3AUH · Croatia EA8UP · Canary Islands EB3JT · Spain F1PSX · France LX7I · Luxembourg PD1HPB · Netherlands PD2WL · 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 R4FED

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 · 81 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,639 km (approx.)
Last such locator decoded: 2026-08-29 19:11 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	R4FED S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-29 19:14	80m	-17 / -	RA3X	- / -	2	✓ Closing fragment
08-29 19:07	80m	- / -4	UB3LBU	-8 / -	2	✓ Closing fragment
08-29 19:06	80m	-2 / -16	R3PBA	-9 / +3	4	✓ Full exchange observed
08-29 19:04	80m	-4 / -	R6FX	-13 / -	3	✓ Closing observed
08-29 19:03	80m	- / +2	R3KJF	-3 / -	3	✓ Closing fragment
08-29 18:44	20m	-14 / +2	T77R	-4 / -2	4	✓ Full exchange observed
08-29 18:38	20m	- / -2	EA8UP	+17 / -	2	✓ Closing fragment
08-29 18:34	20m	- / -2	9A3AUH	-12 / -	2	✓ Closing fragment
08-29 18:32	20m	- / -4	EB3JT	+16 / -	3	✓ Closing fragment
08-29 18:20	80m	-4 / -	R3BCK	- / -4	2	Partial capture
08-29 18:18	80m	-4 / -	R7BI	- / +7	2	✓ Closing fragment
08-29 18:17	80m	-4 / -	RA9FDR	- / -8	2	✓ Closing fragment
08-29 18:16	80m	-3 / -4	UA3ZQN	-4 / -	5	✓ Full exchange observed
08-29 18:14	80m	-4 / -	JA3FYC	- / -	2	Partial capture
08-29 18:09	80m	-6 / -13	HG0NPJ	+5 / -18	7	✓ Full exchange observed
08-29 17:17	20m	- / -1	LX7I	+6 / -	3	✓ Closing fragment
08-22 19:54	80m	-3 / -	ZS6WAB	- / -	3	Partial capture
08-22 19:51	80m	-4 / -	JA1ILA	- / -	2	Partial capture
08-22 19:49	80m	-3 / -	JG3TRB	- / -9	4	✓ Closing fragment
08-22 18:58	80m	- / -18	RA3YDA	0 / -	2	✓ Closing fragment
08-22 18:44	80m	-4 / -12	UA6EU	-12 / -7	4	✓ Full exchange observed
08-22 18:43	80m	-3 / -10	9A3EYA	+6 / -	6	✓ Closing observed
08-22 18:41	80m	-4 / +7	R6ML	-1 / -3	5	✓ Full exchange observed
08-22 18:38	80m	-6 / -	UA4WCS	-8 / +5	4	✓ Full exchange observed
08-22 18:38	80m	-4 / +1	R3RB	+2 / -	4	✓ Full exchange observed
08-22 18:37	80m	-4 / -8	RV3F	+4 / +7	4	✓ Full exchange observed
08-22 18:37	80m	-4 / +2	R4HHN	-4 / -	6	✓ Full exchange observed
08-22 18:35	80m	-2 / -1	RA4FUT	-7 / -	5	✓ Full exchange observed
08-22 18:34	80m	-4 / -5	R7DX	+12 / +7	9	✓ Full exchange observed
08-08 19:32	80m	- / -6	RT6Z	+12 / -	3	✓ Closing fragment
08-08 19:31	80m	- / -6	R3HH	+5 / -	3	✓ Closing fragment
08-08 19:28	80m	+1 / -	TA3GO	- / -9	4	✓ Closing fragment
08-08 18:44	40m	- / -16	SP7TF	-13 / -	2	✓ Closing fragment
08-08 18:42	40m	- / -20	OE3SGU	-8 / -	4	Partial capture
08-08 18:37	80m	-7 / 0	<...>	-10 / -	2	Partial capture
08-07 18:25	80m	-8 / +5	SV1EKI	-7 / -15	5	✓ Full exchange observed
08-07 18:24	80m	- / -	RA3VX	0 / -	5	Partial capture
08-07 18:24	80m	-6 / +1	RN3QTS	-6 / +1	7	✓ Full exchange observed
08-07 18:15	80m	-6 / +2	R2GFD	-9 / -2	5	✓ Full exchange observed
08-07 18:15	80m	- / -	RA3VX	+4 / -	6	Partial capture
08-07 18:13	80m	-7 / -2	RG4H	-7 / +5	5	✓ Full exchange observed
08-07 18:11	80m	-4 / -	R6UBM	-10 / -6	4	✓ Full exchange observed
08-07 18:11	80m	-8 / +1	LZ2INP	+12 / -1	7	✓ Full exchange observed
08-07 18:08	80m	-6 / -3	RV9CX	-10 / +4	4	✓ Full exchange observed
07-18 11:49	20m	-20 / -	F1PSX	-19 / -15	3	✓ Closing observed
07-18 11:47	20m	- / -17	IK4LZH	-1 / -	3	✓ Closing fragment
07-18 11:41	20m	-17 / -	DL1R	+1 / -5	8	Partial capture
07-12 07:30	20m	- / -11	PD2WL	-20 / -	2	✓ Closing fragment
07-12 07:29	20m	-13 / -	PD1HPB	-11 / -8	3	✓ Closing observed
07-11 18:04	80m	-8 / -	RX9WM	-14 / -	4	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
190615 -14 2272  R4FED R3PBA -16
190630  -3 2279  R3PBA R4FED R+03
190645  -4 2271  R4FED R3PBA RR73
190700  -1 2279  R3PBA R4FED 73
190745 -10 1498  R4FED UB3LBU R-04 (x2)
190830  +3 2278  CQ R4FED LO23 (x2)
190915 -14  453  R4FED R2ASY KO85
191130  -1 2280  CQ R4FED LO23
191215 -11  753  R4FED S56FPW JN76
191215  -6 2280  R4FED RC6OG KN98
191345 -16 2279  R4FED DO7FJK JO53
191400 -18 2279  RA3X R4FED +12 (x2)

20m

UTC    dB Audio  Message
171745  +5 1934  R4FED LX7I -01 (x3)
183145 -10 2712  ZS6HON R4FED 73
183200 +16 2712  R4FED EB3JT JN01 (x3)
183430 -13 2567  R4FED 9A3AUH R-02 (x2)
183845 +16  408  R4FED EA8UP -02 (x2)
184400 -16  564  T77R R4FED LO23
184515  -5 1378  R4FED T77R +02
184530 -11  564  T77R R4FED R-02
184545  -3 1378  R4FED T77R RR73

40m

UTC    dB Audio  Message
193815  -6  537  R4FED IK4LZH JN54 (x3)
193930 -19 2135  RU3XW R4FED -17 (x2)
194115 -11 2369  R4FED R3LDK KO64 (x2)
184000 -17 2032  OE3SGU R4FED LO23
184215  -3 2575  R4FED OE3SGU -20 (x4)
184400 -14  980  R4FED SP7TF -16 (x2)
184500  -9 1302  R4FED OK1FED JN88

10m

UTC    dB Audio  Message
112045 -17 1636  R4FED F4FSY R-21 (x2)
062215  -6 1515  R4FED RM6J -18 (x3)
071630 -17 1066  R4FED R3DHP KO95 (x2)
071800  -8  574  R4FED RA7Z KN98 (x3)
072345 -22 1779  R4FED RK6MC KN97
072700  -5  657  R4FED SV2CLJ KN10 (x2)
074245 -11  497  R4FED RA7Z R+00 (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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