R9FDL — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: LO77

Receiver-side FT8 activity involving R9FDL, decoded by SO8OO in southeastern Poland. 32 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-09-11.

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 32 FT8 messages attributed to R9FDL as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (38%), followed by 40 m (34%) and 20 m (28%). Several six-hour UTC windows tied for the largest share (63%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (75%); the estimated median was -20 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-20 dB

Estimated median S/N

Bands

80m · 12 40m · 11 20m · 9

First attributed message: 2026-06-13
Last attributed message: 2026-09-11 21:55 UTC

Observed FT8 message patterns

Attributed sample: 32 messages
Active dates: 4 UTC dates
Estimated median S/N: -20 dB
Estimated 10th-90th percentile: -24 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 24, moderate (-15 to -9 dB) 3, strong (≥ -8 dB) 5.

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 R9FDL in decoded directed-looking exchanges:

R8CEG · Asiatic Russia ×2 R3LDK · European Russia RW0AE · Asiatic Russia RZ3DW · European Russia R2DRE · European Russia R2EA · European Russia R7DX · European Russia RA3WY · European Russia RD3MF · European Russia RK4FD · European Russia RQ3D · European Russia RY3D · European Russia

Most frequent locator attributed to R9FDL

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: LO77 · 17 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,313 km (approx.)
Last such locator decoded: 2026-09-11 21:55 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	R9FDL S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-11 21:59	80m	- / -22	RA3WPF	+6 / -	6	Partial capture
09-11 21:51	80m	- / -	SN4K	-3 / -	2	Partial capture
09-11 21:48	80m	-20 / -	R8CEG	- / -9	5	✓ Closing fragment
09-11 21:45	80m	-24 / -16	HA7TM	+13 / -1	4	✓ Full exchange observed
09-11 21:42	80m	- / -15	R2EN	+5 / -	2	✓ Closing fragment
09-11 21:41	80m	- / -	OH3GBW	+6 / -	2	Partial capture
09-11 21:38	80m	- / -17	RM5F	+6 / -	4	✓ Closing fragment
09-11 21:37	80m	- / +8	R3KLE	-7 / -	3	✓ Closing fragment
09-11 21:36	80m	- / -	UA4FKT	+4 / -	4	Partial capture
09-11 21:35	80m	- / -11	YO6LM	+7 / -	4	✓ Closing fragment
09-11 21:31	40m	- / -	RA6AR	-7 / -	2	Partial capture
09-11 21:29	40m	- / -16	YO4NF	-17 / -	3	Partial capture
09-11 21:28	40m	- / -13	S51UN	-6 / -	3	Partial capture
09-11 21:20	40m	- / -15	YO4NF	-13 / -	2	Partial capture
09-11 21:18	40m	- / -	S51UN	-4 / -	2	Partial capture
09-11 21:17	40m	- / -9	9A9O	-8 / -	4	Partial capture
09-11 21:12	40m	- / -	DJ0MAB	-9 / -	3	Partial capture
09-11 21:09	40m	- / -18	R3VA	-1 / -	4	Partial capture
09-11 21:09	40m	- / -	UD6AWH	-12 / -	2	Partial capture
09-07 15:18	40m	- / -	DL6UM	+2 / -	7	Partial capture
09-07 15:18	40m	- / -13	R2DRE	-14 / -	3	✓ Closing fragment
09-07 15:17	40m	- / -21	DK7ZT	-2 / -	2	Partial capture
09-07 15:13	40m	-24 / +2	RY3D	+6 / -1	3	✓ Closing observed
09-07 15:13	40m	- / +10	UA9LKL	-21 / -	3	Partial capture
09-07 15:10	40m	- / -10	R2DRE	-16 / -	4	Partial capture
09-07 15:07	40m	- / -13	DK7ZT	-14 / -	2	Partial capture
09-07 15:07	40m	-16 / -4	RD3MF	-10 / -7	9	✓ Full exchange observed
09-07 15:06	40m	-19 / -3	RA3WY	-4 / -5	11	✓ Full exchange observed
09-07 15:06	40m	- / -	OE6TNO	-2 / -	9	Partial capture
09-07 15:06	40m	- / -4	R2EA	-1 / -	9	✓ Closing fragment
09-07 15:06	40m	- / -7	R7DX	-4 / -	3	✓ Closing fragment
09-07 15:00	40m	- / -15	RK4FD	-3 / -	6	✓ Closing fragment
09-07 14:54	40m	- / -18	RK4PR	-7 / -	3	Partial capture
06-27 16:03	20m	- / -8	RZ3DW	+2 / -	5	✓ Closing fragment
06-27 15:51	20m	- / -	DL1R	-12 / -	8	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
214845 -24 1836  R8CEG R9FDL -09 (x4)
215045 -18 1836  CQ R9FDL LO77
215100  -3 1835  R9FDL SN4K KO03
215115 -20 1836  CQ R9FDL LO77
215130  -3 1835  R9FDL SN4K KO03
215515 -13 1006  CQ R9FDL LO77
215930  +4 1006  R9FDL RA3WPF KO81 (x6)

40m

UTC    dB Audio  Message
211730  -7 2115  R9FDL 9A9O JN85 (x2)
211830  -2 2115  R9FDL S51UN JN75 (x2)
211930  -7 2115  R9FDL 9A9O R-09
212000 -10 2116  R9FDL YO4NF -15 (x2)
212800  -6 1875  R9FDL S51UN JN75 (x3)
212930 -19 1875  R9FDL YO4NF -16 (x3)
213100  -7 1701  R9FDL RA6AR KN93 (x2)

20m

UTC    dB Audio  Message
155445 -11 1575  R9FDL DL1R JN58
155945 -21 1850  JH0BBA R9FDL -08
160115 -20 1850  CQ R9FDL LO77
160230  -9 2738  R9FDL BI4XDT R-09
160330  +1 2775  R9FDL RZ3DW KO84 (x5)
160915 -21 1850  CQ R9FDL LO77                         a1
161045 -24 1850  RW0AE R9FDL 73
161200 -17 2024  R9FDL F1NQP JN19
161230 -10 2213  R9FDL R3LDK 73
162115 -13 2349  R9FDL LZ1BT KN12
162145 -17 2335  R9FDL R2BEX KO85

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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