IZ0CVT — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN61

Receiver-side FT8 activity involving IZ0CVT, decoded by SO8OO in southeastern Poland. 40 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 7 UTC dates in the available aggregate history. Observed between 2026-07-29 and 2026-08-29.

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 40 FT8 messages attributed to IZ0CVT as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (78%), followed by 10 m (23%). Several six-hour UTC windows tied for the largest share (58%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (73%); the estimated median was -5 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-5 dB

Estimated median S/N

Bands

20m · 31 10m · 9

First attributed message: 2026-07-29
Last attributed message: 2026-08-29 06:46 UTC

Observed FT8 message patterns

Attributed sample: 40 messages
Active dates: 7 UTC dates
Estimated median S/N: -5 dB
Estimated 10th-90th percentile: -14 to +9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 8, strong (≥ -8 dB) 29.

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 IZ0CVT in decoded directed-looking exchanges:

NP4PS · Puerto Rico HI8UD · Dominican Republic JH1FVE · Japan TA4SSK · Asiatic Turkey UA4FEN · 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 IZ0CVT

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: JN61 · 28 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,158 km (approx.)
Last such locator decoded: 2026-08-29 06:41 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	IZ0CVT S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-29 06:45	20m	-5 / -	TI5RR	- / -10	2	Partial capture
08-29 06:39	20m	- / -15	TI5RR	-15 / -	2	Partial capture
08-29 06:38	20m	-5 / -	YS1GMV	- / -23	11	Partial capture
08-29 06:32	20m	-4 / -	VK2BGL	- / -	2	Partial capture
08-28 17:08	20m	+10 / -	<...>	- / -13	8	Partial capture
08-28 17:05	20m	- / +5	UA4FEN	+20 / -	2	✓ Closing fragment
08-28 17:04	20m	- / -	JH1FVE	-17 / -	2	✓ Closing fragment
08-27 18:06	20m	-15 / -	EP2AES	- / -	2	Partial capture
08-27 17:09	20m	- / +1	TA4SSK	-5 / -	2	✓ Closing fragment
08-01 14:08	10m	-10 / -	NP4PS	- / -17	2	✓ Closing fragment
07-30 17:44	10m	-11 / -	HI8UD	- / -	7	Partial capture
07-29 17:32	20m	-9 / -	5N0YEN	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
063800  +2 2337  YS1GMV IZ0CVT JN61 (x3)
063945 -16  907  IZ0CVT TI5RR -15
064000  -6 2337  YS1GMV IZ0CVT JN61
064015 -14  907  IZ0CVT TI5RR -15
064100  +0 2337  YS1GMV IZ0CVT JN61 (x7)
064530  -7 2337  TI5RR IZ0CVT R-10 (x2)

10m

UTC    dB Audio  Message
174415 -14 2489  HI8UD IZ0CVT JN61 (x7)
140815 -11  521  NP4PS IZ0CVT R-17 (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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