IS0/DK6FW — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Sardinia

Receiver-side FT8 activity involving IS0/DK6FW, decoded by SO8OO in southeastern Poland. 16 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-08-30 and 2026-09-16.

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 16 FT8 messages attributed to IS0/DK6FW as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (50%), followed by 80 m (31%) and 20 m (19%). In this small sample, the estimated median decoder S/N was -11 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

80m · 5 40m · 8 20m · 3

First attributed message: 2026-08-30
Last attributed message: 2026-09-16 02:49 UTC

Observed FT8 message patterns

Attributed sample: 16 messages
Active dates: 3 UTC dates
Estimated median S/N: -11 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 7, strong (≥ -8 dB) 7.

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 IS0/DK6FW in decoded directed-looking exchanges:

TA2BMV · Asiatic Turkey LY790A · Lithuania TK/4O7CC · Corsica

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.

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	IS0/DK6FW S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-16 17:10	80m	- / -3	OE5ABL	-18 / -	2	Partial capture
09-16 15:55	80m	- / -7	RA6ATZ	+3 / -	2	Partial capture
09-16 15:35	80m	- / +4	RA4CGX	-12 / -	2	Partial capture
09-16 07:21	40m	- / +4	S57WO	-12 / -	2	Partial capture
09-16 06:24	40m	- / -16	OE6OCG	+6 / -	2	Partial capture
09-16 02:48	80m	- / -1	RW6HP	-13 / -	2	Partial capture
09-15 23:02	80m	- / -17	RM5F	+3 / -	2	Partial capture
09-15 22:25	80m	- / -	EI4KX	-13 / -	2	Partial capture
09-15 22:20	80m	- / -	TK/4O7CC	0 / -	3	✓ Closing fragment
09-15 22:04	80m	- / -	<...>	0 / -	2	✓ Closing fragment
09-15 21:56	80m	- / -	<...>	-7 / -	3	✓ Closing fragment
09-15 21:36	40m	-1 / -	DL1KMD	- / -10	2	Partial capture
09-15 20:44	40m	-8 / -	TA2BMV	- / -25	4	✓ Closing fragment
09-15 19:31	40m	- / -	M7NRS	-16 / -	2	Partial capture
08-30 09:26	20m	-13 / -20	PD3LKN	+9 / -7	2	Partial capture
08-30 09:26	20m	- / -	F1PSX	+2 / -	10	Partial capture
08-30 09:25	20m	-12 / -	<...>	+8 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
222300 -11 1064  <MW7GQB> IS0/DK6FW
222515 -14 1234  IS0/DK6FW EI4KX IO63 (x2)
230215  +7 1127  IS0/DK6FW RM5F KO85 (x2)
024815 -16 1612  IS0/DK6FW RW6HP LN14 (x2)
024915 -16 1612  LY790A IS0/DK6FW 73
153515 -14 2056  IS0/DK6FW RA4CGX LO21 (x2)
155515  +3 2064  IS0/DK6FW RA6ATZ KN96 (x2)
171015 -17 2212  IS0/DK6FW OE5ABL -03 (x2)
192045 +10 1233  IS0/DK6FW SP7SZJ R-13

40m

UTC    dB Audio  Message
193215 -17 1649  IS0/DK6FW M7NRS JO01
204045 -11 1100  <...> IS0/DK6FW 73
204445 -10 1100  <TA2BMV> IS0/DK6FW (x2)
204530  +1 1389  IS0/DK6FW <...> RR73
204545  -8 1100  TA2BMV IS0/DK6FW 73 (x2)
204645  -6 1100  <9K2WA> IS0/DK6FW
205915 -14 1648  IS0/DK6FW M7NRS R+06
213630  +0 1100  DL1KMD IS0/DK6FW R-10 (x2)
062400  +7 1103  IS0/DK6FW OE6OCG JN77 (x2)
072145 -12 1978  IS0/DK6FW S57WO JN65 (x2)

20m

UTC    dB Audio  Message
092530 -12  360  <...> IS0/DK6FW
092615  +8  359  IS0/DK6FW F1PSX JN08
092630 -13  360  PD3LKN IS0/DK6FW -07
092645  +9  360  IS0/DK6FW PD3LKN R-20
092700 -13  360  <...> IS0/DK6FW RR73
092715  +8  360  IS0/DK6FW <...> 73
092745  +2  360  IS0/DK6FW F1PSX JN08 (x9)

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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