SV1IU — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Greece Most frequent locator attributed to this token: KM17

Receiver-side FT8 activity involving SV1IU, decoded by SO8OO in southeastern Poland. 309 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 31 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-20.

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 309 FT8 messages attributed to SV1IU as the transmitting token by decoded message structure across 31 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (50%), followed by 40 m (28%) and 80 m (16%). The busiest six-hour window was 01:00-07:00 UTC, containing 46% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.

Overview

309

Messages attributed

UTC dates decoded

Active 15-min windows

-7 dB

Estimated median S/N

Bands

80m · 49 60m · 15 40m · 86 20m · 155 10m · 4

First attributed message: 2026-06-08
Last attributed message: 2026-09-20 21:13 UTC

Observed FT8 message patterns

Attributed sample: 309 messages
Active dates: 31 UTC dates
Estimated median S/N: -7 dB
Estimated 10th-90th percentile: -17 to +10 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 41, moderate (-15 to -9 dB) 93, strong (≥ -8 dB) 175.

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 SV1IU in decoded directed-looking exchanges:

CR5VP · Portugal ×2 IQ0VT · Italy ×2 CS2WWA · Portugal ×2 TM2WWA · France ×2 IQ0OS · Italy IQ4FE · Italy IQ9NI · Sicily M0PFX · England PD7RF · Netherlands TK5KP · Corsica CR2WWA · Azores EG4WWA · Spain

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 SV1IU

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: KM17 · 176 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,386 km (approx.)
Last such locator decoded: 2026-09-20 21:11 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	SV1IU S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 20:55	40m	-15 / -14	II0IHMG	-5 / -15	3	Partial capture
09-20 19:07	60m	- / -	SQ2BXI	-9 / -	7	Partial capture
09-20 19:05	60m	-4 / -	II8IHBC	- / -11	2	Partial capture
09-20 18:53	40m	- / -1	II9IAGM	+5 / -	2	Partial capture
09-19 17:13	60m	- / -	SV2AOB	-10 / -	2	Partial capture
09-19 17:12	60m	+2 / -	TM35DCM	- / -6	2	Partial capture
09-18 18:32	60m	- / -	OZ1LXL	+10 / -	2	Partial capture
09-18 18:31	60m	-4 / -	II0IHMG	- / -9	2	Partial capture
09-18 18:29	60m	-7 / -1	II8IHBC	-13 / -3	3	Partial capture
09-18 18:29	60m	- / -	IK4CBO	-9 / -	2	Partial capture
09-18 18:28	60m	0 / +10	II9IAGM	-6 / +2	3	Partial capture
09-18 06:13	40m	- / -	UT4PA	-3 / -	2	Partial capture
09-18 06:13	40m	- / -	YO3GNF	-5 / -	8	Partial capture
09-18 06:11	40m	- / -	UA4FKT	-8 / -	2	Partial capture
09-16 06:20	40m	-14 / -3	II6IALU	-10 / -16	3	Partial capture
09-16 06:19	40m	-19 / -	IU8RFW	-12 / -7	5	Partial capture
09-14 22:00	40m	-9 / -4	IZ0MIT	+6 / 0	5	Partial capture
09-14 21:57	40m	-3 / +7	II0IHMG	+6 / +1	3	Partial capture
09-14 21:50	80m	+4 / -10	II9IABJ	-12 / -11	7	Partial capture
09-14 21:48	80m	-7 / -	DB100FT	- / -	2	Partial capture
09-14 21:46	80m	-2 / -	F5OYA/P	- / -	4	Partial capture
09-14 06:23	40m	- / -10	II6IGTO	-16 / -	2	Partial capture
09-13 19:18	60m	-2 / 0	II0IHMG	-9 / -1	3	Partial capture
09-13 19:17	60m	-1 / +3	II8IHBC	-11 / -3	2	Partial capture
09-11 05:14	40m	-3 / -	OZ/OO4O	- / -19	2	Partial capture
09-11 05:05	40m	-11 / -	SP100PKP	- / -	3	Partial capture
09-11 04:33	40m	- / -4	II0IHMG	-14 / -	2	Partial capture
08-15 13:45	20m	- / -	F4HSB	-15 / -	3	Partial capture
08-14 05:42	20m	- / -	R6FX	-17 / -	2	Partial capture
08-08 19:09	20m	-14 / -5	CR5VP	-22 / -	2	Partial capture
08-06 01:14	40m	-13 / -	CR5VP	- / -13	5	✓ Closing fragment
08-06 01:02	20m	- / -	WB2REM	+1 / -	5	Partial capture
08-05 07:40	20m	-14 / -	CR5VP	-19 / -8	3	✓ Closing observed
08-03 05:59	20m	- / -4	TK5KP	-17 / -	2	✓ Closing fragment
08-02 09:18	20m	- / -9	R2AL	-1 / -	4	Partial capture
08-02 09:16	20m	-21 / -7	PD7RF	+2 / -	5	✓ Closing observed
07-05 23:38	40m	- / 0	TM2WWA	-7 / -	3	✓ Closing fragment
07-04 01:01	40m	-13 / +5	II9WWA	-22 / -	3	✓ Closing observed
07-04 00:10	40m	- / -5	TM8WWA	-14 / -	2	✓ Closing fragment
07-04 00:08	40m	- / -13	OH5WWA	-15 / -	2	✓ Closing fragment
07-04 00:06	40m	-21 / -14	EG4WWA	-18 / -4	3	✓ Full exchange observed
07-04 00:01	40m	- / -15	CS2WWA	-17 / -	2	✓ Closing fragment
07-04 00:01	40m	- / -6	TM2WWA	-8 / -	2	✓ Closing fragment
07-03 23:59	40m	- / -17	GB2WWA	-12 / -	2	✓ Closing fragment
07-03 23:57	40m	- / -6	CR2WWA	-6 / -	2	✓ Closing fragment
06-26 22:34	40m	-21 / 0	IQ0VT	-6 / -	3	✓ Closing observed
06-26 22:33	40m	-22 / -3	IQ4LH	-12 / -	4	Partial capture
06-26 22:11	80m	0 / -1	II9RICT	+8 / -5	3	Partial capture
06-26 11:10	20m	-15 / -	IQ9NI	- / -10	2	✓ Closing fragment
06-25 05:38	20m	- / -2	IQ0OS	-15 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
214645  -4 1500  F5OYA/P SV1IU KM17 (x4)
214845  -4 1385  DB100FT SV1IU KM17 (x2)
215045  -3  733  <II9IABJ> SV1IU KM17
215100 -12  733  SV1IU II9IABJ -10
215115  +3  733  II9IABJ SV1IU R-11
215130 -15  733  SV1IU II9IABJ -10
215145  +5  733  II9IABJ SV1IU R-11
215200  -9  733  SV1IU II9IABJ -10
215215 +11  733  II9IABJ SV1IU R-11
211145 -15 1220  II7IAME SV1IU KM17
211345  -8 1614  SP100PKP SV1IU R-02

40m

UTC    dB Audio  Message
061400  -9 1759  SV1IU UT4PA KO20
061430  -8 2494  SV1IU YO3GNF KN34 (x6)
061015 -15 1570  RT4A/P SV1IU KM17
061415 -15 1545  SP100PKP SV1IU KM17
185300  +8  491  SV1IU II9IAGM -01 (x2)
185730  -6 1306  SV1IU II6IALU -09
205545 -13  883  II0IHMG SV1IU KM17
205600  -5  884  SV1IU II0IHMG -14
205615 -17  883  II0IHMG SV1IU R-15

60m

UTC    dB Audio  Message
183230 +10  720  SV1IU OZ1LXL JO55 (x2)
171215  +0  873  TM35DCM SV1IU KM17 (x2)
171330 -11 2366  SV1IU SV2AOB KN10 (x2)
190545  -3 1367  II8IHBC SV1IU KM17 (x2)
190730  -7  245  SV1IU SQ2BXI JO94 (x7)

20m

UTC    dB Audio  Message
074200 -19 1378  SV1IU CR5VP RR73
010200  +1 2809  SV1IU WB2REM EL97 (x5)
190900 -14 1393  CR5VP SV1IU KM17
190945 -22 1394  SV1IU CR5VP -05
080245 -18 1319  SV1IU R1WBJ KO47
054215 -18 1032  SV1IU R6FX LN14 (x2)
055130 -20 1144  CR5VP SV1IU KM17
134545 -16 1275  SV1IU F4HSB JN37 (x3)

10m

UTC    dB Audio  Message
114545 -10  562  <...> SV1IU KM17 (x2)
114630  +3  756  SV1IU II3RPAD -09
114645  -5  562  <...> SV1IU R+14
114930  -6 1579  SV1IU IQ3UCY -06
122700 -15  901  CR5VP SV1IU KM17

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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