W9RF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: EM57

Receiver-side FT8 activity involving W9RF, decoded by SO8OO in southeastern Poland. 29 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-16 and 2026-08-26.

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 29 FT8 messages attributed to W9RF as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (52%), followed by 20 m (48%). Several six-hour UTC windows tied for the largest share (93%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-15 dB

Estimated median S/N

Bands

80m · 15 20m · 14

First attributed message: 2026-06-16
Last attributed message: 2026-08-26 23:07 UTC

Observed FT8 message patterns

Attributed sample: 29 messages
Active dates: 7 UTC dates
Estimated median S/N: -15 dB
Estimated 10th-90th percentile: -24 to -9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, moderate (-15 to -9 dB) 14, strong (≥ -8 dB) 2.

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 W9RF in decoded directed-looking exchanges:

F4LXP · France HI3A · Dominican Republic YU1LD · Serbia A71XX · Qatar LZ2KAA · Bulgaria PI4DX · Netherlands DO1ID · Fed. Rep. of Germany EU3AW · Belarus

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 W9RF

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: EM57 · 20 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,169 km (approx.)
Last such locator decoded: 2026-08-26 23:07 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	W9RF S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-15 02:26	80m	- / -	RD9M/3	-2 / -	2	Partial capture
09-15 02:26	80m	- / -	EW8CW	-1 / -	3	Partial capture
09-15 02:26	80m	- / -	UA4FKT	+4 / -	4	Partial capture
09-15 02:26	80m	- / -	UT7UA	+13 / -	7	Partial capture
09-15 02:24	80m	- / -	UT5ZC	+16 / -	2	Partial capture
09-14 02:28	80m	- / -	IN3WZS	0 / -	11	Partial capture
09-12 04:02	40m	- / -16	IW1GB	-13 / -	2	Partial capture
08-26 23:05	20m	- / -2	F4LXP	-7 / -	5	✓ Closing fragment
08-26 23:03	20m	-14 / +7	HI3A	-5 / +6	3	✓ Full exchange observed
08-26 00:32	20m	-12 / -	<...>	- / -2	3	Partial capture
08-26 00:20	20m	-12 / -	<...>	- / -	4	Partial capture
08-07 23:58	40m	- / -6	PI4DX	-2 / -	2	✓ Closing fragment
08-07 22:58	20m	- / -	WV2B	-16 / -	2	Partial capture
07-22 01:59	80m	-24 / -	<...>	- / -	2	Partial capture
07-22 01:53	80m	-24 / -	<...>	- / -	2	Partial capture
07-17 00:43	40m	- / -14	LZ2KAA	-6 / -	3	✓ Closing fragment
07-17 00:39	40m	- / -14	A71XX	-9 / -	2	✓ Closing fragment
07-16 02:09	80m	- / -16	EU3AW	+10 / -	2	✓ Closing fragment
07-16 02:03	80m	- / -	IW9FRA	-14 / -	7	Partial capture
07-16 02:00	80m	-13 / +1	DO1ID	+3 / -17	8	✓ Full exchange observed
07-16 01:58	80m	-15 / -	<...>	- / +3	5	Partial capture
07-03 21:31	20m	- / -	F4LKA	-14 / -	2	Partial capture
07-03 02:06	80m	- / -	EA7AH	-14 / -	3	Partial capture
07-02 23:46	20m	- / -	YU1LD	0 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
003900  -8 2242  W9RF A71XX -14 (x2)
004300  -7 1935  W9RF LZ2KAA -14 (x3)
235845  -4 1017  W9RF PI4DX -06 (x2)
040200 -15  951  W9RF IW1GB -16 (x2)
005615 -15 1351  W9RF R9OOF -15
011200  -6 1137  W9RF MI7XHT IO64

80m

UTC    dB Audio  Message
022615  -7 1744  W9RF EW8CW KO52
022645  +9 2690  W9RF UT7UA KO50
022645  -6 1951  W9RF UF5F KO98
022645  +2 1132  W9RF UA4FKT LO23
022645  -4 2298  <W9RF> RD9M/3
022645  +5  744  W9RF EW8CW KO52
022715  +9 2690  W9RF UT7UA KO50
022715  +1 1132  W9RF UA4FKT LO23
022715  -1 2298  <W9RF> RD9M/3
022715  +0  744  W9RF EW8CW KO52
022745 +11 2690  W9RF UT7UA KO50
022745  +6 1133  W9RF UA4FKT LO23
022815 +16 2690  W9RF UT7UA KO50 (x3)

20m

UTC    dB Audio  Message
003245 -18 1650  <...> W9RF EM57 (x3)
202430 -15  609  F5OYA/P W9RF EM57
215400 -10  782  <...> W9RF EM57
221115  +1  704  W9RF W1AW/2 -10
230345  -5 2216  W9RF HI3A +07
230400 -14 1637  HI3A W9RF R+06
230415  -5 2216  W9RF HI3A RR73
230515  -9  951  W9RF F4LXP JN05 (x5)
230730 -19 1637  S55X W9RF EM57

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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