VA3SDO — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Canada Most frequent locator attributed to this token: FN25

Receiver-side FT8 activity involving VA3SDO, decoded by SO8OO in southeastern Poland. 14 FT8 messages attributed to this token as transmitter, on 40m, across 3 UTC dates in the available aggregate history. Observed between 2026-09-12 and 2026-09-21.

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 14 FT8 messages attributed to VA3SDO 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 (100%). In this small sample, the estimated median decoder S/N was -21 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-21 dB

Estimated median S/N

Bands

40m · 14

First attributed message: 2026-09-12
Last attributed message: 2026-09-21 03:09 UTC

Observed FT8 message patterns

Attributed sample: 14 messages
Active dates: 3 UTC dates
Estimated median S/N: -21 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, moderate (-15 to -9 dB) 1, strong (≥ -8 dB) 0.

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 VA3SDO in decoded directed-looking exchanges:

CT2HEX · Portugal EA3AKY · Spain EB3JT · Spain F4ACR · France IW9FRA · Sicily N8NVI · United States R7DX · European Russia UC6D · European Russia VA3BS · Canada YO4NF · Romania

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 VA3SDO

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: FN25 · 6 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 6,727 km (approx.)
Last such locator decoded: 2026-09-21 02:37 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	VA3SDO S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-21 03:24	40m	- / -	R2EC	+18 / -	2	Partial capture
09-21 02:37	40m	- / -	I1RJP	-16 / -	3	Partial capture
09-21 02:30	40m	- / -	F4BYA	+15 / -	3	Partial capture
09-21 02:16	40m	- / -	F4BYA	+10 / -	3	Partial capture
09-21 02:12	40m	- / -	F4BYA	+5 / -	3	Partial capture
09-13 21:39	40m	- / -	M0XUE	+8 / -	4	Partial capture
09-13 21:38	40m	- / -	2E0UMK	-12 / -	10	Partial capture
09-13 21:30	40m	- / -2	CT2HEX	-4 / -	3	✓ Closing fragment
09-13 02:26	40m	- / -	KD2ZZA	-10 / -	2	Partial capture
09-13 02:23	40m	-18 / -9	EA3AKY	+3 / -	4	✓ Closing observed
09-12 03:08	40m	- / -13	UC6D	+8 / -	7	✓ Closing fragment
09-12 03:05	40m	- / -15	KB2ELA	-16 / -	2	Partial capture
09-12 02:57	40m	- / +1	IW9FRA	-18 / -	4	✓ Closing fragment
09-12 02:50	40m	-20 / -	N8NVI	- / +10	2	✓ Closing fragment
09-12 02:48	40m	-21 / -	K3ATA	- / -4	2	Partial capture
09-12 02:42	40m	- / -11	R7DX	0 / -	3	✓ Closing fragment
09-12 01:16	40m	- / -7	VA3BS	-17 / -	2	✓ Closing fragment
09-12 00:27	40m	- / -11	F4ACR	-2 / -	3	✓ Closing fragment
09-12 00:10	40m	- / -20	EB3JT	-11 / -	5	✓ Closing fragment
09-11 03:05	40m	- / -	ND9M	-16 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
021630 +12 2982  VA3SDO F4BYA JN19 (x6)
023545 -21 1337  ON1DGN VA3SDO FN25
023700 -18 2539  VA3SDO I1RJP JN45 (x2)
023745 -24 1337  CQ VA3SDO FN25                        a1
023800 -17 2540  VA3SDO I1RJP JN45
030900 -15 2433  PR2TX VA3SDO -16
031315  -8 1167  VA3SDO RX3ASQ KO95
032445 +20 2868  VA3SDO R2EC KO82 (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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