VA3SF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Canada Most frequent locator attributed to this token: FN03

Receiver-side FT8 activity involving VA3SF, decoded by SO8OO in southeastern Poland. 57 FT8 messages attributed to this token as transmitter, on 20m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-16 and 2026-08-25.

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 57 FT8 messages attributed to VA3SF as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-8 dB

Estimated median S/N

Bands

20m · 57

First attributed message: 2026-06-16
Last attributed message: 2026-08-25 23:15 UTC

Observed FT8 message patterns

Attributed sample: 57 messages
Active dates: 9 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -17 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 19, strong (≥ -8 dB) 30.

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 VA3SF in decoded directed-looking exchanges:

E75C · Bosnia-Herzegovina G0TAA · England G4RCV · England G4YLJ · England GJ0KYZ · Jersey HZ1TT · Saudi Arabia M0DPK · England M0JPU · England M0LOW · England MW3FLI · Wales PE1EBT · Netherlands R7DX · European Russia

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 VA3SF

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: FN03 · 25 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 7,109 km (approx.)
Last such locator decoded: 2026-08-25 23:14 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	VA3SF S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-31 18:21	20m	- / -15	M0JPU	+2 / -	2	✓ Closing fragment
08-25 23:14	20m	-10 / -	M0LOW	- / -10	4	✓ Closing fragment
08-25 22:36	20m	-3 / -	TF8KW	- / -	9	Partial capture
08-25 22:34	20m	-6 / -	5N0YEN	- / -	3	Partial capture
08-25 22:32	20m	-22 / -	PE1EBT	- / -6	2	✓ Closing fragment
08-25 22:29	20m	-1 / -	OD5ZZ	- / -	3	Partial capture
08-25 22:26	20m	-10 / -	G0TAA	- / -17	3	✓ Closing fragment
08-25 22:15	20m	-9 / -	SP7NC	- / -15	3	Partial capture
08-24 14:22	20m	- / -10	GJ0KYZ	+12 / -	3	✓ Closing fragment
08-12 20:45	20m	- / -	YO4MXK	-9 / -	6	✓ Closing fragment
08-12 20:41	20m	- / -6	M0ABG	-18 / -	2	Partial capture
07-19 01:33	20m	- / -5	HZ1TT	-11 / -	3	✓ Closing fragment
07-18 22:25	20m	- / -7	M0DPK	-20 / -	2	✓ Closing fragment
07-18 22:19	20m	- / -14	E75C	-15 / -	2	✓ Closing fragment
07-09 15:24	20m	- / -14	G4YLJ	-12 / -	3	✓ Closing fragment
07-09 15:21	20m	- / -20	G4RCV	-15 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
223700  -2  679  TF8KW VA3SF FN03 (x8)
231400  -9  975  M0LOW VA3SF FN03 (x4)
182115  +7  934  VA3SF M0JPU -15 (x2)
123245 -24 1642  VA3SF R7DX 73

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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee