R5FY — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO85

Receiver-side FT8 activity involving R5FY, decoded by SO8OO in southeastern Poland. 872 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 21 UTC dates in the available aggregate history. Observed between 2026-06-14 and 2026-09-18.

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 872 FT8 messages attributed to R5FY as the transmitting token by decoded message structure across 21 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (49%), followed by 40 m (23%) and 80 m (16%). Most decodes (51%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

872

Messages attributed

UTC dates decoded

Active 15-min windows

-14 dB

Estimated median S/N

Bands

160m · 62 80m · 138 40m · 200 20m · 427 10m · 45

First attributed message: 2026-06-14
Last attributed message: 2026-09-18 00:59 UTC

Observed FT8 message patterns

Attributed sample: 872 messages
Active dates: 21 UTC dates
Estimated median S/N: -14 dB
Estimated 10th-90th percentile: -21 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 383, moderate (-15 to -9 dB) 259, strong (≥ -8 dB) 230.

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 R5FY in decoded directed-looking exchanges:

R6DV · European Russia ×2 RA6ZD · European Russia ×2 F1ODM · France ×2 OH1LA · Finland ×2 CE2SV · Chile R2FAQ · Kaliningrad R6YG · European Russia R7DX · European Russia R7KKO · European Russia RA1PO · European Russia RA7E · European Russia RC3RD · 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.

Most frequent locator attributed to R5FY

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: KO85 · 583 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,193 km (approx.)
Last such locator decoded: 2026-09-18 00:59 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	R5FY S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-18 00:59	160m	- / -	SV1AIQ	-8 / -	5	Partial capture
09-18 00:55	160m	+8 / -	VP2MAA	- / -	9	Partial capture
09-18 00:34	160m	-1 / -	RA9YTI	- / -	3	Partial capture
09-18 00:04	160m	0 / -	RI1FJZ	- / -7	3	✓ Closing fragment
09-17 23:54	160m	-5 / -18	CX6VM	-22 / -24	11	Partial capture
09-17 23:47	160m	-2 / -	CX6VM	- / -	8	Partial capture
09-17 23:46	160m	-2 / -	EA1CQ	- / -13	2	✓ Closing fragment
09-17 23:43	160m	-1 / -	R8PD	- / 0	5	✓ Closing fragment
09-14 16:21	80m	-18 / -	KH8WW	- / -	4	Partial capture
09-13 18:53	40m	-4 / -	RG6S	- / -	9	Partial capture
09-13 17:26	40m	+2 / -	KH8WW	- / -14	8	✓ Closing fragment
09-12 19:07	80m	-2 / -	JO1ABS	- / -13	2	✓ Closing fragment
09-12 19:06	80m	+2 / -	JG2CNZ	- / -9	2	✓ Closing fragment
09-12 19:05	80m	-2 / -	JF1LMB	- / -8	2	✓ Closing fragment
09-12 18:51	80m	-6 / -	VK1MA	- / -	13	Partial capture
09-12 18:47	80m	-4 / -6	V51WH	-13 / -17	7	✓ Full exchange observed
09-12 18:34	80m	-8 / -	ZS6BUN	- / -15	17	✓ Closing fragment
09-12 18:04	80m	-11 / -14	UA3FO	-2 / -	5	✓ Closing observed
09-12 18:03	80m	-10 / -	UB0SMX/P	- / -19	4	✓ Closing fragment
09-12 17:49	80m	-5 / -	R4AGE/P	- / -	23	Partial capture
09-12 17:29	80m	-4 / -5	RA3PDG	-4 / -3	5	✓ Full exchange observed
09-12 17:28	80m	-4 / +3	RC2Y	-3 / -5	6	✓ Full exchange observed
09-12 17:28	80m	-8 / +3	RC6OZ	-9 / -2	4	✓ Full exchange observed
09-12 17:23	80m	-8 / -	RA7E/P	- / -14	9	✓ Closing fragment
09-12 17:14	80m	-2 / -	5W1SA	- / -9	2	Partial capture
09-12 17:10	80m	-12 / -22	YE4FNN	-14 / -9	4	✓ Full exchange observed
09-08 23:06	80m	+1 / -	9V1YC	- / +2	3	✓ Closing fragment
09-08 21:45	80m	+4 / -10	RA9ACA	-6 / -	3	✓ Closing observed
09-08 21:41	80m	+3 / -	Z62NS	- / -	3	Partial capture
09-08 20:44	80m	-7 / +3	R5BM	-6 / -12	4	✓ Full exchange observed
09-08 20:25	80m	0 / -	JH2FXK	- / -14	3	✓ Closing fragment
09-08 20:21	80m	-5 / -	JI4WAO	- / -18	3	✓ Closing fragment
09-08 20:11	80m	+2 / -5	RC9WC	-11 / -13	2	Partial capture
09-08 20:10	80m	-6 / -	UA3SCU	-8 / -11	3	✓ Full exchange observed
09-08 20:09	80m	-8 / -	JA5AUC	- / -14	3	✓ Closing fragment
09-08 20:07	80m	-1 / -	UA6XT	-20 / -15	4	✓ Closing observed
09-08 20:03	80m	-8 / -	JA2IHL	- / -	2	Partial capture
09-08 17:28	80m	+6 / -	BI6AN	- / -	5	Partial capture
09-08 17:20	80m	+5 / -	RV9ABE	- / -11	2	✓ Closing fragment
09-08 17:18	80m	+2 / -10	R2DRE	+2 / -1	4	✓ Full exchange observed
09-08 17:18	80m	-4 / -6	RC7LX	-8 / -	3	✓ Closing observed
09-08 17:17	80m	-5 / +10	R9CS/P	-11 / -	3	✓ Closing observed
09-08 02:02	80m	-2 / -	OZ/KD0NDU	- / -16	2	Partial capture
09-03 21:23	160m	-11 / -	RI1FJL	- / -	4	✓ Closing fragment
09-03 21:13	160m	-16 / -	RI1FJL	- / -	13	Partial capture
09-03 21:06	160m	+1 / -	R7CD	-14 / -1	3	✓ Closing observed
09-03 21:04	160m	-4 / -	RD9U	- / -8	5	✓ Closing fragment
08-22 22:45	20m	-16 / -6	TJ1GD	-6 / -13	6	Partial capture
08-18 15:14	20m	- / -4	G1LQT	-13 / -	3	Partial capture
08-18 15:07	20m	-19 / -	PD0HLA	- / -19	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
003530  +1 1892  RA9YTI R5FY KO85
005530  +2 1892  VP2MAA R5FY KO85 (x8)
005915  -7  499  R5FY SV1AIQ KM17
005930 +10  863  VP2MAA R5FY KO85
005945  -9  499  R5FY SV1AIQ KM17 (x4)

80m

UTC    dB Audio  Message
185600 -11 1896  VK1MA R5FY KO85 (x5)
190500  +0 2399  JF1LMB R5FY -08 (x2)
190600  +3 2399  JG2CNZ R5FY -09 (x2)
190700  +1 2399  JO1ABS R5FY -13 (x2)
162115 -17 1896  KH8WW R5FY KO85 (x4)

40m

UTC    dB Audio  Message
172915  -7 1923  KH8WW R5FY KO85 (x5)
185130 -11 2179  R5FY 9H4JX RR73
185300  -1 1824  RG6S R5FY KO85 (x9)

20m

UTC    dB Audio  Message
150715 -19 2118  PD0HLA R5FY R-19 (x2)
150815 -18 2118  VR2VAZ R5FY -10
151015 -21 2118  SP7TF R5FY R-13
151045 -15 2118  CQ R5FY KO85
151430 -17 1489  R5FY G1LQT -04 (x3)
151815 -19 2118  OH6DHM R5FY -05
224515 -21 1444  TJ1GD R5FY KO85 (x2)
224600  -6  603  R5FY TJ1GD -06
224615 -15 1444  TJ1GD R5FY R-13
224630  -5  603  R5FY TJ1GD -06
224745 -14 1445  TJ1GD R5FY R-13

10m

UTC    dB Audio  Message
115630 -20 1928  RY9W R5FY KO85 (x3)
121715 -21 1926  R1BGR R5FY KO85
121815 -24 1927  R1WCK R5FY KO85
122815 -24 1922  R4WAM R5FY KO85
123330 -18 1925  RY3DAD R5FY 73
123445 -19 1926  R1BED R5FY R+00
125100 -22 1926  RM1B R5FY KO85 (x2)
125415 -24 1929  RY3F R5FY 73
125930 -23 1929  R2RAK R5FY R-24
130600 -15 1928  R6JY R5FY KO85 (x3)

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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