SV1DOC — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Greece Most frequent locator attributed to this token: KM19

Receiver-side FT8 activity involving SV1DOC, decoded by SO8OO in southeastern Poland. 22 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-09-17.

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 22 FT8 messages attributed to SV1DOC as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (64%), followed by 80 m (27%) and 20 m (9%). Several six-hour UTC windows tied for the largest share (64%), 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 · 6 40m · 14 20m · 2

First attributed message: 2026-06-12
Last attributed message: 2026-09-17 18:58 UTC

Observed FT8 message patterns

Attributed sample: 22 messages
Active dates: 7 UTC dates
Estimated median S/N: -15 dB
Estimated 10th-90th percentile: -24 to -4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 8, strong (≥ -8 dB) 4.

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 SV1DOC in decoded directed-looking exchanges:

EH3ST · Spain ×2 IQ8BV · Italy ×2 IK2UCL · Italy

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 SV1DOC

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: KM19 · 8 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,164 km (approx.)
Last such locator decoded: 2026-09-17 18:58 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	SV1DOC S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-17 18:52	80m	-20 / -19	EH3ST	-10 / -	2	Partial capture
09-12 01:54	40m	- / +6	EH3ST	-22 / -	2	✓ Closing fragment
09-12 01:20	80m	-8 / -	EH3ST	-7 / -4	3	✓ Closing observed
09-03 04:20	40m	-13 / -	IT9ECY	- / -25	4	Partial capture
08-20 04:11	40m	-15 / +10	IK2UCL	-6 / -	3	✓ Closing observed
07-21 05:50	40m	- / -	UT4PA	-6 / -	2	Partial capture
07-21 05:27	40m	- / -	DJ0MAB	-21 / -	2	Partial capture
07-21 05:27	40m	- / -2	YO4NT	-6 / -	2	Partial capture
07-21 05:04	40m	- / -	9A4ZM	-4 / -	2	Partial capture
07-20 21:42	40m	- / -	9A4ZM	-13 / -	2	Partial capture
07-20 21:40	40m	-18 / -	IQ8BV	- / -	4	✓ Closing fragment
07-20 20:53	80m	- / -	UA4FKT	+4 / -	2	Partial capture
07-20 20:52	80m	-20 / -3	IQ8BV	-8 / 0	4	✓ Full exchange observed
07-16 05:51	20m	-24 / -2	IQ9SZ	-22 / -25	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
205200 -10 1904  SV1DOC IQ8BV -03
205215 -19 1902  IQ8BV SV1DOC R+00
205230  -5 1904  SV1DOC IQ8BV RR73
205245 -20 1902  IQ8BV SV1DOC 73
205300  +5 1902  SV1DOC UA4FKT LO23 (x2)
012015  -6 1500  EH3ST SV1DOC R-04
012030  -7 1222  SV1DOC EH3ST RR73
012045 -10 1500  EH3ST SV1DOC 73 (x2)
185400 -10 1616  SV1DOC EH3ST -19
185845 -24 2085  EH3ST SV1DOC KM19

40m

UTC    dB Audio  Message
052745  -5 2080  SV1DOC YO4NT -02
052745 -22 1944  SV1DOC DJ0MAB JN49
052815  -8 2080  SV1DOC YO4NT -02
052815 -20 1944  SV1DOC DJ0MAB JN49
055030  -6 1235  SV1DOC UT4PA KO20 (x2)
041130 -15 2101  IK2UCL SV1DOC KM19
041145  -3 1495  SV1DOC IK2UCL +10 (x2)
042045 -14 2105  IT9ECY SV1DOC KM19 (x4)
015430 -20 1529  SV1DOC EH3ST +06 (x2)

20m

UTC    dB Audio  Message
051345 -15  972  SV1DOC 9A3MA -02
055145 -22 2194  SV1DOC IQ9SZ -02
055200 -24 2194  IQ9SZ SV1DOC R-25 (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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