SV1TN — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Greece Most frequent locator attributed to this token: KM18

Receiver-side FT8 activity involving SV1TN, decoded by SO8OO in southeastern Poland. 203 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 10 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-09-04.

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 203 FT8 messages attributed to SV1TN as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (50%), followed by 40 m (26%) and 80 m (24%). Most decodes (58%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (66%); the estimated median was -5.6 dB.

Overview

203

Messages attributed

UTC dates decoded

Active 15-min windows

-5.6 dB

Estimated median S/N

Bands

80m · 48 40m · 53 20m · 102

First attributed message: 2026-06-12
Last attributed message: 2026-09-04 16:30 UTC

Observed FT8 message patterns

Attributed sample: 203 messages
Active dates: 10 UTC dates
Estimated median S/N: -5.6 dB
Estimated 10th-90th percentile: -13 to +8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 62, strong (≥ -8 dB) 133.

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 SV1TN in decoded directed-looking exchanges:

IQ0VT · Italy IQ5AAR · Italy IQ6PE · Italy DA0WWA · Fed. Rep. of Germany IK2BUF · 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 SV1TN

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: KM18 · 117 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,275 km (approx.)
Last such locator decoded: 2026-09-04 16:29 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	SV1TN S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-04 16:29	40m	-11 / -	IK2BUF	-4 / -7	5	✓ Full exchange observed
09-03 20:36	80m	-10 / +2	IR7MGGC	-5 / -1	3	Partial capture
09-03 18:31	80m	-11 / -	II7MGXX	- / -7	2	Partial capture
09-03 18:24	80m	-5 / -	SQ100PKP	- / -	3	Partial capture
09-03 17:18	40m	- / -2	II7MGML	0 / -	2	Partial capture
09-03 16:59	40m	-12 / +7	IR7MGGC	-4 / +2	3	Partial capture
09-03 16:13	40m	-15 / -	IR7MGGC	-16 / -	4	Partial capture
06-29 22:22	40m	- / -1	DA0WWA	-6 / -	2	✓ Closing fragment
06-25 20:35	20m	- / -10	IR7RMAT	-16 / -	2	Partial capture
06-25 20:29	20m	- / -11	IQ5AAR	-8 / -	2	✓ Closing fragment
06-25 20:25	20m	- / -9	IQ0VT	-16 / -	2	✓ Closing fragment
06-23 17:36	20m	-4 / -	<...>	- / -	3	Partial capture
06-23 17:32	20m	-13 / -	IQ6PE	-20 / -	2	✓ Closing observed
06-23 17:29	20m	-5 / -	<...>	- / -	4	Partial capture
06-23 16:07	20m	-12 / -	<...>	- / -	3	Partial capture
06-23 16:02	20m	-14 / -	IQ9BH	- / -	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
161545 -13 1834  IR7MGGC SV1TN KM18
165030 -13 1467  SV1TN II7MGBA +01
165115 -11 1416  SQ100PKP SV1TN R+02
165145  -7 1317  SN40KZE SV1TN R+02
165915 -11 1834  IR7MGGC SV1TN KM18
165930  -4 1834  SV1TN IR7MGGC +07
165945 -12 1834  IR7MGGC SV1TN R+02
171800  -4 1034  SV1TN II7MGML -02 (x2)
155930 -18 1837  IK2SGF SV1TN KM18
162915 -11 2325  IK2BUF SV1TN KM18
162930 -11 2371  SV1TN IK2BUF +13
162945 -12 2325  IK2BUF SV1TN R-07
163000  +2 2371  SV1TN IK2BUF RR73
163015  -9 2325  IK2BUF SV1TN 73

80m

UTC    dB Audio  Message
182400  -2 1474  SQ100PKP SV1TN KM18 (x3)
182515  -1 1545  SV1TN II7MGXX +06
183145 -12 1465  II7MGXX SV1TN KM18 (x2)
203600  -9 1702  IR7MGGC SV1TN KM18
203615  -5 1702  SV1TN IR7MGGC +02
203630 -12 1702  IR7MGGC SV1TN R-01
205845  +0 1702  SV1TN IR7MGGC +03

20m

UTC    dB Audio  Message
173145  -5  783  <...> SV1TN KM18 (x2)
173245 -13 1349  IQ6PE SV1TN KM18
173330 -20 1348  SV1TN IQ6PE RR73
173615  -5 1000  <...> SV1TN KM18 (x3)
202545 -17 1464  SV1TN IQ0VT -09 (x2)
202900  -8 2325  SV1TN IQ5AAR -11 (x2)
203115 -19 2184  <...> SV1TN KM18
203500 -15 2338  SV1TN IR7RMAT -10 (x2)
221945  -8  380  SV1TN II2WWA -01

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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