R9YBW — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Asiatic Russia Most frequent locator attributed to this token: MO91

Receiver-side FT8 activity involving R9YBW, decoded by SO8OO in southeastern Poland. 6 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-31 and 2026-09-01.

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 6 FT8 messages attributed to R9YBW as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (83%), followed by 40 m (17%). In this small sample, the estimated median decoder S/N was -14 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-14 dB

Estimated median S/N

Bands

40m · 1 20m · 5

First attributed message: 2026-08-31
Last attributed message: 2026-09-01 17:58 UTC

Observed FT8 message patterns

Attributed sample: 6 messages
Active dates: 2 UTC dates
Estimated median S/N: -14 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) 5, strong (≥ -8 dB) 0.

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 R9YBW in decoded directed-looking exchanges:

9A6NTK · Croatia EA1N · Spain F4HTA · France SM3ULU · Sweden R3MAR · European Russia R7DX · European Russia RA3WEO · European Russia UA4COA · European Russia R4HHN · European Russia RN3RY · European Russia RV9CX · Asiatic Russia

Most frequent locator attributed to R9YBW

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: MO91 · 4 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 3,927 km (approx.)
Last such locator decoded: 2026-09-01 17:58 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	R9YBW S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-01 18:02	40m	- / -14	R3MAR	-9 / -	2	✓ Closing fragment
09-01 17:15	40m	- / -	RV3YN	+2 / -	2	Partial capture
09-01 17:00	40m	- / -	R7MP	-12 / -	2	Partial capture
09-01 16:59	40m	- / -	RV3YN	+2 / -	11	Partial capture
09-01 16:59	40m	- / -	R3DHP	-3 / -	6	Partial capture
09-01 16:59	40m	- / -	YT1DDL	-1 / -	3	Partial capture
08-31 10:24	20m	- / -12	F4HTA	+16 / -	2	✓ Closing fragment
08-31 10:21	20m	-10 / -	YT1VDA	- / -	2	Partial capture
08-31 10:17	20m	- / -18	SM3ULU	0 / -	4	✓ Closing fragment
08-31 10:14	20m	-16 / -21	9A6NTK	+16 / -11	4	✓ Full exchange observed
08-29 15:24	40m	- / -	RA3FH	-2 / -	12	Partial capture
08-29 15:23	40m	- / -	R3MBV	-6 / -	3	Partial capture
08-29 15:23	40m	- / -	UB4FGK	-14 / -	3	Partial capture
08-29 15:21	40m	- / -8	RA3WEO	0 / -	3	✓ Closing fragment
08-29 15:10	40m	- / -	UB4FGK	-15 / -	6	Partial capture
08-29 15:01	40m	- / -6	R7DX	-1 / -	5	✓ Closing fragment
08-25 16:59	80m	- / -	R5KH	-7 / -	3	Partial capture
08-25 16:58	80m	- / -	UB4FGK	-12 / -	6	Partial capture
08-25 16:57	80m	- / -17	RN3RY	-8 / -	4	✓ Closing fragment
08-25 16:56	80m	- / -	R6ML	-1 / -	3	Partial capture
08-25 16:55	80m	- / -	RA6ZS	+5 / -	12	Partial capture
08-25 16:55	80m	- / -9	RA7T	-6 / -	2	Partial capture
08-25 16:44	80m	- / -	RA6ZS	+4 / -	7	Partial capture
08-25 14:43	40m	- / -	R7DX	-6 / -	2	Partial capture
08-25 14:41	40m	- / -	RL3QGD	-8 / -	5	Partial capture
08-25 08:01	20m	- / -	RL3QGD	+2 / -	2	Partial capture
08-25 07:55	20m	- / -	DL3MIB	+16 / -	7	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
170200  +4 2252  R9YBW RV3YN KO73 (x6)
170745  -7 1339  R9YBW R6ZB -06
171500  +1 2249  R9YBW RV3YN KO73 (x2)
175800  -9  710  F4IEW R9YBW MO91
180215  -8 1530  R9YBW R3MAR R-14
180245  -4 1848  R9YBW RC6OX KN88
180245 -10 1531  R9YBW R3MAR 73
134300 -22 1788  R9YBW UA4COA RR73
144445  +0  466  R9YBW R6OD KN87

20m

UTC    dB Audio  Message
101430 +17 2227  R9YBW 9A6NTK R-21
101445 -14  841  9A6NTK R9YBW RR73
101500 +15 2227  R9YBW 9A6NTK 73
101530  -9  896  R9YBW M7FCX IO91
101600 -16  857  R9YBW M9YLR R-25
101700  +4  841  R9YBW SM3ULU JP81 (x4)
102115 -10  896  YT1VDA R9YBW MO91 (x2)
102445 +18  583  R9YBW F4HTA -12 (x2)
152415  +2 2224  R9YBW EC3A -16
062145  -9  644  R9YBW EA1N 73

80m

UTC    dB Audio  Message
165845  +1  816  R9YBW RA6ZS KN98
165915 -14 1365  R9YBW UB4FGK LO33
165915  -8 1273  R9YBW RN3RY RR73
165915  +4  816  R9YBW RA6ZS KN98
165915  -8 1824  R9YBW R5KH KO91
165945  -9 1365  R9YBW UB4FGK LO33
165945  +3  816  R9YBW RA6ZS KN98
165945  -7 1824  R9YBW R5KH KO91
170015 -11 1365  R9YBW UB4FGK LO33
170015 -21 1414  R9YBW UB4CLH -09
170015 +10  358  R9YBW RA6ZS KN98
170015  -7 1824  R9YBW R5KH KO91
170045 -12 1365  R9YBW UB4FGK LO33
170045  +8  358  R9YBW RA6ZS KN98 (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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