IU3IIZ — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN65

Receiver-side FT8 activity involving IU3IIZ, decoded by SO8OO in southeastern Poland. 32 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-08-21 and 2026-10-11.

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 32 FT8 messages attributed to IU3IIZ as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (63%), followed by 80 m (38%). Several six-hour UTC windows tied for the largest share (94%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (66%); the estimated median was -6 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-6 dB

Estimated median S/N

Bands

80m · 12 20m · 20

First attributed message: 2026-08-21
Last attributed message: 2026-10-11 19:54 UTC

Observed FT8 message patterns

Attributed sample: 32 messages
Active dates: 3 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -12 to +1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 11, strong (≥ -8 dB) 21.

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 IU3IIZ in decoded directed-looking exchanges:

DL1BBO · Fed. Rep. of Germany OH1LA · Finland PE1KDY · Netherlands YO5PHL · Romania F1PBZ · France IZ8DFO · Italy IZ8VYF · Italy IZ8XQC · Italy

Most frequent locator attributed to IU3IIZ

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: JN65 · 14 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 821 km (approx.)
Last such locator decoded: 2026-10-11 19:53 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	IU3IIZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-11 19:53	80m	-4 / +4	IQ8DO	+5 / +2	3	Partial capture
10-11 19:52	80m	- / -	RK6OQ	0 / -	2	Partial capture
10-11 19:49	80m	+1 / -1	IZ8DFO	-2 / -4	6	✓ Full exchange observed
10-11 19:43	80m	-4 / -3	IZ8XQC	+10 / +2	5	✓ Full exchange observed
10-11 19:40	80m	0 / -	IZ8VYF	- / -	2	✓ Closing fragment
08-21 15:58	20m	-10 / -	DL1BBO	- / -10	2	✓ Closing fragment
08-21 15:57	20m	-7 / -	DL1UDO	0 / -5	4	Partial capture
08-21 15:55	20m	-8 / -	PE1KDY	- / -14	2	✓ Closing fragment
08-21 15:52	20m	-10 / -	OH1LA	- / -14	2	✓ Closing fragment
08-21 15:49	20m	-11 / -20	R3KCW	-5 / -9	3	Partial capture
08-21 15:38	20m	-7 / -	YO5PHL	- / -14	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
194445  -4 1675  IZ8XQC IU3IIZ R+02
194500  +5  312  IU3IIZ IZ8XQC RR73
194515  -2 1675  IZ8XQC IU3IIZ 73
194715  +3 1675  F1PBZ IU3IIZ 73
194945  -2 1675  IZ8DFO IU3IIZ JN65 (x2)
195100  +0 1700  IU3IIZ IZ8DFO -01
195115  +1 1675  IZ8DFO IU3IIZ R-04
195130  -4 1700  IU3IIZ IZ8DFO RR73
195145  -2 1675  IZ8DFO IU3IIZ 73
195200  -3 1501  IU3IIZ RK6OQ KN87 (x2)
195315  -2 1675  IQ8DO IU3IIZ JN65
195330  +5 2369  IU3IIZ IQ8DO +04
195445  -7 1675  IQ8DO IU3IIZ R+02

20m

UTC    dB Audio  Message
155245  -9 1747  OH1LA IU3IIZ RR73
155445  -4 1747  CQ IU3IIZ JN65
155515  -9 1747  PE1KDY IU3IIZ -14 (x2)
155645  -9 1747  CQ IU3IIZ JN65 (x2)
155730  -2 2471  IU3IIZ DL1UDO JO31 (x2)
155815  -7 1747  DL1UDO IU3IIZ -05
155830  +0 2472  IU3IIZ DL1UDO JO31
155845  -8 1747  DL1BBO IU3IIZ -10 (x2)
074945 -14 1750  II7MGBT IU3IIZ JN65
075000  +8  783  IU3IIZ II7MGXX -05
075915  -5 1751  II7MGBT IU3IIZ JN65

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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