SV1OCN — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving SV1OCN, decoded by SO8OO in southeastern Poland. 51 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-07-20 and 2026-07-28.

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 51 FT8 messages attributed to SV1OCN as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (57%), followed by 20 m (27%) and 40 m (16%). Most decodes (76%) fell within the six-hour window 19:00-01:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (63%); the estimated median was -6 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-6 dB

Estimated median S/N

Bands

80m · 29 40m · 8 20m · 14

First attributed message: 2026-07-20
Last attributed message: 2026-07-28 17:22 UTC

Observed FT8 message patterns

Attributed sample: 51 messages
Active dates: 6 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -14 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 15, strong (≥ -8 dB) 32.

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 SV1OCN in decoded directed-looking exchanges:

R4FDW · European Russia EU4U · Belarus HG8IT · Hungary DH1KJ · Fed. Rep. of Germany DH8BQA · Fed. Rep. of Germany EA5HM · Spain F4BYA · France R4FDD · European Russia RC6OD · European Russia RK6MC · European Russia YO4NT · 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 SV1OCN

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 · 26 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,386 km (approx.)
Last such locator decoded: 2026-07-28 17:22 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	SV1OCN S/N	Counterpart	Counterpart S/N	Msgs	Capture
07-28 17:21	20m	+2 / -	RK0SC	- / -	2	Partial capture
07-26 19:23	20m	-6 / -	TN8GD	- / -	3	Partial capture
07-26 00:21	80m	-6 / -11	RC6OD	+9 / -6	6	✓ Full exchange observed
07-26 00:19	80m	0 / -	DH1KJ	+4 / -	4	✓ Closing observed
07-26 00:19	80m	+2 / -16	R4FDD	0 / -7	4	✓ Full exchange observed
07-24 21:35	40m	- / -6	HG8IT	-4 / -	2	✓ Closing fragment
07-24 21:33	40m	- / -6	EU4U	-10 / -	2	✓ Closing fragment
07-24 21:25	80m	-10 / -	<...>	- / -9	2	Partial capture
07-23 21:32	80m	-14 / -	SV8TOZ	- / -	2	Partial capture
07-23 00:20	80m	-3 / -13	EA5HM	-8 / -9	9	✓ Full exchange observed
07-23 00:17	80m	+2 / -1	F4BYA	+9 / -7	8	✓ Full exchange observed
07-22 23:43	40m	-13 / -	K8AC	- / -12	4	Partial capture
07-22 19:02	80m	-11 / -3	YO4NT	+10 / -1	4	✓ Full exchange observed
07-22 19:01	80m	-8 / +5	DH8BQA	-6 / -9	5	✓ Full exchange observed
07-22 18:58	80m	-14 / -12	RK6MC	+3 / -3	5	✓ Full exchange observed
07-21 17:09	40m	- / -7	UA4FKT	-8 / -	2	Partial capture
07-20 22:18	80m	-6 / -	8S7DL	- / -	3	Partial capture
07-20 17:44	20m	-5 / -	JH4VTV	- / -16	2	Partial capture
07-20 17:40	20m	-4 / -	R4FDW	- / -12	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
173345  -4 2965  BI4MPH SV1OCN KM17
173830  -5 2954  JH4VTV SV1OCN R-16
173945  -3 2954  RA8AM SV1OCN R-11
174045  -3 2954  R4FDW SV1OCN R-12 (x2)
174215  -2 2954  R9YCB SV1OCN KM17
174400  -6 2955  JH4VTV SV1OCN R-16 (x2)
192315  -7 3022  TN8GD SV1OCN KM17 (x4)
172130  +2 2986  RK0SC SV1OCN KM17 (x2)

80m

UTC    dB Audio  Message
001845  +6 2279  RC6OD SV1OCN KM17
001900  +3 1401  SV1OCN R4FDD -16
001900  +0 2145  SV1OCN DH1KJ JN48
001915  +2 2279  R4FDD SV1OCN R-07
001930  -2 1402  SV1OCN R4FDD RR73
001930  +2 2145  SV1OCN DH1KJ JN48
001945  +2 2279  R4FDD SV1OCN 73
002030 +10 2145  SV1OCN DH1KJ RR73
002045  +0 2279  DH1KJ SV1OCN 73
002130  +9  696  SV1OCN RC6OD -11
002145  -3 2279  RC6OD SV1OCN R-06
002200  +9  696  SV1OCN RC6OD RR73
002215  +1 2279  RC6OD SV1OCN 73 (x3)

40m

UTC    dB Audio  Message
222530 -11  587  K6UFO SV1OCN KM17
223030 -18 1151  R8LCP SV1OCN KM17
170900  -9 2513  SV1OCN UA4FKT LO23 (x2)
234345 -14 2378  K8AC SV1OCN KM17 (x4)
235830 -17 2345  RA9SOZ SV1OCN KM17
212145  -2 2937  TK5K SV1OCN KM17
213315 -11 2683  SV1OCN EU4U -06 (x2)
213545  +1 2518  SV1OCN HG8IT -06 (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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