IZ5CPK — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN44

Receiver-side FT8 activity involving IZ5CPK, decoded by SO8OO in southeastern Poland. 58 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 17 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-19.

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 58 FT8 messages attributed to IZ5CPK as the transmitting token by decoded message structure across 17 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (48%), followed by 20 m (40%) and 10 m (12%). Several six-hour UTC windows tied for the largest share (66%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-16 dB

Estimated median S/N

Bands

40m · 28 20m · 23 10m · 7

First attributed message: 2026-06-07
Last attributed message: 2026-09-19 14:43 UTC

Observed FT8 message patterns

Attributed sample: 58 messages
Active dates: 17 UTC dates
Estimated median S/N: -16 dB
Estimated 10th-90th percentile: -23 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 30, moderate (-15 to -9 dB) 16, strong (≥ -8 dB) 12.

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 IZ5CPK in decoded directed-looking exchanges:

Z62NS · Republic of Kosovo ×2 CR2WWA · Azores EA7R · Spain EB1LA · Spain II7WWA · Italy SN4WWA · Poland SV1EAG · Greece

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 IZ5CPK

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: JN44 · 41 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,137 km (approx.)
Last such locator decoded: 2026-09-18 14:12 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	IZ5CPK S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-19 14:43	40m	- / -10	3Z100PKP	-8 / -	2	Partial capture
09-18 14:05	40m	-21 / -16	SP100PKP	-10 / -	6	Partial capture
09-13 14:59	40m	-19 / -5	3Z100PKP	-8 / -	2	Partial capture
09-06 07:50	40m	- / +7	Z62NS	-10 / -	2	✓ Closing fragment
09-05 07:23	40m	-8 / -	AM42SDC	- / +4	5	Partial capture
08-30 07:42	20m	- / -4	M1DBW	-7 / -	6	Partial capture
08-29 15:18	40m	-10 / -	SQ3WL	- / -	2	Partial capture
08-29 15:13	40m	-14 / +9	DL9FFM	-8 / -	6	Partial capture
08-29 07:38	20m	- / +6	Z62NS	+1 / -	2	✓ Closing fragment
08-28 15:33	20m	- / +6	EA7R	+13 / -	3	✓ Closing fragment
08-28 09:16	20m	+6 / -	II7MGBT	- / -	7	Partial capture
08-11 14:28	20m	- / -	M0IEP	-12 / -	2	Partial capture
07-26 06:31	20m	-24 / -	Z62NS	- / -	2	Partial capture
07-18 15:59	20m	-9 / +7	EB1LA	-18 / -	3	✓ Closing observed
06-30 13:21	20m	-18 / -	TM8WWA	- / -	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
140500 -10 1433  IZ5CPK SP100PKP -16 (x3)
140630 -12 1432  IZ5CPK RR73; IU8RHZ <...> -18
140715 -21 1431  SP100PKP IZ5CPK JN44
140730 -10 1432  IZ5CPK SP100PKP -15 (x2)
140915 -23 1301  3Z100PKP IZ5CPK JN44
141145 -16  991  II8IHBC IZ5CPK R-02
141245 -21 1303  <3Z100PKP> IZ5CPK JN44
141345 -24 1866  SN100PKP IZ5CPK R-04
144045 -19 1428  YU65AEC IZ5CPK R+11
144300  -6 1297  IZ5CPK 3Z100PKP -10 (x2)
144345 -14 1818  YO3FVR/P IZ5CPK R-17

20m

UTC    dB Audio  Message
091845  -1 2098  II7MGBT IZ5CPK JN44 (x2)
092045  -2 1512  EA4IOW IZ5CPK JN44
092145  -3 2103  II7MGBT IZ5CPK JN44
153300 +18  663  IZ5CPK EA7R +06 (x3)
073800  +0  730  IZ5CPK Z62NS +06 (x2)
074215  -5 1150  IZ5CPK M1DBW -04 (x6)

10m

UTC    dB Audio  Message
142300 -15 1493  IZ5CPK DN9AD JO52

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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