R4CY — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: LO31

Receiver-side FT8 activity involving R4CY, decoded by SO8OO in southeastern Poland. 523 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 37 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-09-21.

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 523 FT8 messages attributed to R4CY as the transmitting token by decoded message structure across 37 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (33%), followed by 40 m (31%) and 20 m (22%). Most decodes (60%) fell within the six-hour window 22:00-04:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (63%); the estimated median was -5.8 dB.

Overview

523

Messages attributed

UTC dates decoded

Active 15-min windows

-5.8 dB

Estimated median S/N

Bands

160m · 66 80m · 170 40m · 162 20m · 117 10m · 8

First attributed message: 2026-06-11
Last attributed message: 2026-09-21 15:55 UTC

Observed FT8 message patterns

Attributed sample: 523 messages
Active dates: 37 UTC dates
Estimated median S/N: -5.8 dB
Estimated 10th-90th percentile: -15 to +10 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 43, moderate (-15 to -9 dB) 149, strong (≥ -8 dB) 331.

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 R4CY in decoded directed-looking exchanges:

BA6IM · China ×2 TK5K · Corsica RA6FYL · European Russia RI1FJL · Franz Josef Land RM5F · European Russia BA4IHB · China BG8NQ · China DL1BBO · Fed. Rep. of Germany PZ5TW · Suriname R2FDU · Kaliningrad SP1EG · Poland SP6FME · 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 R4CY

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: LO31 · 302 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,774 km (approx.)
Last such locator decoded: 2026-09-21 15:55 UTC

Other locator fields attributed to this token: LO21 (22).

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	R4CY S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-21 15:54	80m	+6 / -	EV1R	+13 / -8	5	Partial capture
09-21 02:32	40m	+14 / -	N0SD	- / -	3	Partial capture
09-21 02:27	40m	+10 / -	N0SD	- / -	5	Partial capture
09-21 02:07	160m	+9 / -	N2VOA	- / -	4	Partial capture
09-17 02:42	40m	+1 / -	OA4ENG	- / -11	3	✓ Closing fragment
09-17 00:01	80m	-4 / -16	EX7DY	-18 / -	4	Partial capture
09-16 23:45	80m	+4 / +1	UA4CCH	+8 / +3	5	✓ Full exchange observed
09-15 22:45	80m	- / -9	TK/4O7CC	0 / -	2	Partial capture
09-15 22:45	80m	+9 / -	II8IHBC	- / -12	3	Partial capture
09-13 14:34	40m	-2 / -	R4PFY	- / +3	2	✓ Closing fragment
09-13 14:32	40m	-5 / -	BD7OH	- / -8	3	✓ Closing fragment
09-13 14:27	40m	-6 / -	UA4COA	-18 / -	3	✓ Closing observed
09-13 01:11	80m	- / +1	DH1KJ	+6 / -	2	Partial capture
09-13 01:07	80m	-1 / -17	VO2NS	-19 / -19	10	✓ Full exchange observed
09-11 02:41	40m	+1 / -	XQ2OP	- / -19	5	✓ Closing fragment
09-10 15:58	80m	-11 / +3	R4UA	-7 / +6	7	✓ Full exchange observed
09-10 15:55	80m	-14 / +9	R2DP	-3 / -6	6	✓ Full exchange observed
09-10 15:52	80m	-12 / +6	RA3TVW	-12 / 0	6	✓ Full exchange observed
09-10 15:52	80m	-12 / 0	R4RL	-15 / -1	4	✓ Full exchange observed
09-10 15:49	80m	-16 / -4	RU5X	-18 / -19	6	✓ Full exchange observed
09-10 15:42	80m	-16 / -	RQ3D	- / -24	3	✓ Closing fragment
09-10 15:40	80m	-14 / +1	R4CBE	+1 / +4	5	✓ Full exchange observed
09-10 02:18	80m	-10 / -	N7ELL	- / -	2	Partial capture
09-09 21:13	80m	+2 / -	R5BM	-9 / -3	5	✓ Full exchange observed
09-09 21:12	80m	0 / -3	RK3BM	+1 / -	5	✓ Full exchange observed
09-09 21:11	80m	-1 / +1	YO9HP	+4 / -9	4	✓ Full exchange observed
09-09 21:10	80m	-3 / -	5Z4VJ	-17 / -18	4	✓ Closing observed
09-08 14:41	40m	-12 / -	DS2MGT	- / -17	2	✓ Closing fragment
09-08 14:40	40m	-14 / -	BG7BVI	- / -12	2	✓ Closing fragment
09-08 14:39	40m	-13 / -	RG8U	- / -4	2	✓ Closing fragment
09-08 14:36	40m	-13 / +7	UA3SCU	-13 / +7	3	✓ Full exchange observed
09-08 14:36	40m	-12 / -	BG5JKZ	- / -10	2	✓ Closing fragment
09-08 14:31	40m	-8 / +3	RY3D	-2 / -	5	✓ Full exchange observed
09-08 14:30	40m	-9 / -	ZL2NU	- / -2	3	✓ Closing fragment
09-08 02:32	80m	-13 / -	7X5CY	- / -	5	Partial capture
09-08 02:28	80m	-14 / +10	RO3ZR	-8 / -2	5	✓ Full exchange observed
09-08 02:27	80m	-12 / -	7X5CY	- / -	4	Partial capture
09-08 02:26	80m	- / -	PE1NPS	-20 / -	2	Partial capture
09-08 02:23	80m	-7 / -	PR7AR	- / -19	8	✓ Closing fragment
09-08 02:21	80m	-5 / -	7X5CY	- / -	2	Partial capture
09-08 02:18	80m	-8 / -	LU7MC	- / -19	4	✓ Closing fragment
09-08 02:17	80m	+2 / -	7X5CY	- / -	2	Partial capture
09-08 02:14	80m	-7 / -	ZP6TT	- / -	3	Partial capture
09-08 02:07	80m	-9 / -	ZS6KBS	- / -	5	Partial capture
09-05 01:55	40m	+10 / -	SV8/SV1SAX	- / -15	3	Partial capture
09-05 01:49	40m	+12 / -	K9DRO	- / -24	3	✓ Closing fragment
09-05 01:47	40m	+10 / -	SV8/SV1SAX	- / -	8	Partial capture
09-04 02:42	40m	0 / -2	SV1ENG	-12 / -4	4	Partial capture
09-04 02:35	40m	0 / -	XQ3MCC	- / -3	3	✓ Closing fragment
09-04 02:35	40m	+1 / +2	EW8CW	0 / -	8	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
234500  +9 2107  UA4CCH R4CY LO31
234515  +8  936  R4CY UA4CCH +01
234530  +2 2107  UA4CCH R4CY R+03
234545  +7  936  R4CY UA4CCH RR73
234600  +2 2107  UA4CCH R4CY 73
000145  +0 2107  EX7DY R4CY LO31 (x2)
000330 -15 1244  R4CY EX7DY -16 (x2)
155415  +4  756  EV1R R4CY LO31 (x3)
155530 +13 1474  R4CY EV1R +22
155545  +7  755  EV1R R4CY R-08
155600 +11 1474  R4CY RR73; UB4FGK <...> +12

40m

UTC    dB Audio  Message
143445  -5  410  R4PFY R4CY 73
143645 -10  409  UB4CLH R4CY R+03
143845  -6  409  R2DYC R4CY 73
024245  -3 2142  OA4ENG R4CY LO31 (x3)
024445  +1 2538  AC9C R4CY LO31
022730  +6  791  N0SD R4CY LO31 (x8)

160m

UTC    dB Audio  Message
174615  -5 1520  RI1FJL R4CY LO31 (x8)
175200 -15  901  R4CY R9SAP LO63
020215 -14 1954  KC1TRF R4CY LO31 (x2)
020730  +1 1953  N2VOA R4CY LO31 (x4)

20m

UTC    dB Audio  Message
125815 -15  973  TN8GD R4CY 73
125830 -23 2067  R4CY R2FDU -10 (x3)
125945 -13  973  R2FDU R4CY 73
143145 -16  268  XU7O R4CY LO31 (x2)
123845 -15 1345  RI0FA R4CY LO31 (x3)
124115 -13 1345  UA1AOF R4CY LO31 (x5)

10m

UTC    dB Audio  Message
140315 -22 1398  DH1GKS R4CY -17
122045  -6  852  TK5K R4CY LO31 (x7)

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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