IZ3ZUS — 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 IZ3ZUS, decoded by SO8OO in southeastern Poland. 232 FT8 messages attributed to this token as transmitter, on 80m, 60m, 20m, across 13 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-11-01.

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 232 FT8 messages attributed to IZ3ZUS as the transmitting token by decoded message structure across 13 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (69%), followed by 60 m (30%) and 20 m (1%). Most decodes (100%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

232

Messages attributed

UTC dates decoded

Active 15-min windows

-14 dB

Estimated median S/N

Bands

80m · 160 60m · 70 20m · 2

First attributed message: 2026-06-07
Last attributed message: 2026-11-01 21:07 UTC

Observed FT8 message patterns

Attributed sample: 232 messages
Active dates: 13 UTC dates
Estimated median S/N: -14 dB
Estimated 10th-90th percentile: -20 to -7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 87, moderate (-15 to -9 dB) 108, strong (≥ -8 dB) 37.

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 IZ3ZUS in decoded directed-looking exchanges:

F6ARS · France ×2 HA8RC · Hungary ×2 4X5MZ · Israel PD1ALW · Netherlands F4ACR · France F4HSB · France M9VVE · England MM0GTU · Scotland PI4DX · Netherlands R5AV · European Russia DD4U · Fed. Rep. of Germany DM1SV · Fed. Rep. of Germany

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 IZ3ZUS

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 · 136 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 821 km (approx.)
Last such locator decoded: 2026-11-01 21:03 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	IZ3ZUS S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-01 21:07	80m	-14 / -13	DL6EI	+8 / -8	3	✓ Full exchange observed
11-01 20:56	80m	-8 / -21	DK6WS	-5 / -8	3	✓ Full exchange observed
11-01 20:44	60m	-12 / -	AO40EUDXF	- / -1	3	Partial capture
11-01 17:54	60m	-8 / -	6W/IK2HKT	- / -	2	Partial capture
11-01 17:50	60m	-9 / -	HB9HFJ	- / -	6	Partial capture
11-01 17:49	60m	-12 / -	DL3FAV	- / -	2	Partial capture
11-01 17:47	60m	-10 / -3	LZ1SAD	-6 / -2	4	✓ Full exchange observed
11-01 17:45	60m	-17 / -	HA5CPN	- / -8	3	✓ Closing fragment
11-01 17:29	60m	-17 / -9	YT2ZE	-6 / -6	4	✓ Full exchange observed
11-01 17:27	60m	-12 / -	G3WAY	- / -	3	Partial capture
11-01 17:26	60m	-12 / -	SP1RKT	- / -18	3	✓ Closing fragment
11-01 17:24	60m	-14 / -3	IK1MNJ	-2 / +2	4	✓ Full exchange observed
11-01 17:22	60m	-14 / -20	DM1SV	-13 / -14	4	✓ Full exchange observed
11-01 17:16	60m	-12 / -15	HA8RC	-13 / -16	4	✓ Full exchange observed
10-31 20:45	60m	- / -10	EA8BS	-16 / -	2	✓ Closing fragment
10-31 10:58	10m	- / -	EA7Z	+3 / -	2	Partial capture
10-24 20:23	80m	- / -10	DA1ST	+1 / -	2	Partial capture
10-11 20:14	80m	-16 / -	OK1XOE	- / -	2	Partial capture
10-11 20:10	80m	- / -11	IZ8XQC	+4 / -	4	✓ Closing fragment
10-11 20:07	80m	-15 / -19	IZ8VYF	-18 / -16	5	✓ Full exchange observed
10-11 20:05	80m	-17 / -11	DO2SK	+4 / -1	7	✓ Full exchange observed
10-10 20:58	80m	- / -20	II5GG	-4 / -	2	✓ Closing fragment
09-29 19:50	80m	-11 / -16	F4JND	-5 / -8	13	✓ Full exchange observed
09-29 19:41	80m	- / -14	OE8DDX	+18 / -	2	✓ Closing fragment
09-29 19:38	80m	- / -13	DK5IR	-9 / -	2	✓ Closing fragment
09-29 19:31	80m	-16 / -18	DO8JB	-2 / -11	19	Partial capture
09-29 19:26	80m	- / -22	DL4ALI	+6 / -	3	✓ Closing fragment
09-28 20:06	60m	-8 / -	F4HGF	- / -	5	Partial capture
09-28 20:02	60m	-6 / -10	IZ4TOA	+4 / +3	8	✓ Full exchange observed
09-28 20:00	60m	- / -16	GM0MKM/A	+4 / -	2	Partial capture
09-28 19:59	60m	- / -	DL9KM	-14 / -	4	Partial capture
09-28 19:58	60m	-10 / -6	ON6MX	-2 / -10	7	✓ Full exchange observed
09-28 19:56	60m	-8 / -18	DD4U	-8 / -13	5	✓ Full exchange observed
09-26 20:22	60m	-16 / -18	F6ICX	-4 / -	3	Partial capture
09-26 19:16	80m	-20 / -	SP7OK	- / -	3	Partial capture
09-25 21:54	80m	-14 / -	IZ6FXP	- / -	5	Partial capture
09-25 21:52	80m	-14 / -	M1DZI	- / -	4	Partial capture
09-25 21:47	80m	-14 / -11	IZ8WGR	-4 / -5	4	✓ Full exchange observed
09-25 21:44	80m	- / -4	ON7FL	-14 / -	3	✓ Closing fragment
09-25 21:37	80m	-16 / -23	IK8TLZ	+2 / -6	12	✓ Full exchange observed
09-25 21:34	80m	-9 / -19	HB9EXN	-1 / -14	4	✓ Full exchange observed
09-25 21:31	80m	-9 / -8	F1PBZ	-4 / -21	6	✓ Full exchange observed
09-25 21:31	80m	- / -	F4BYA	+2 / -	3	Partial capture
09-25 21:31	80m	-10 / -13	IQ4JO	+3 / -12	5	✓ Full exchange observed
09-25 21:27	80m	-8 / -	DO9SAM	+4 / -4	3	Partial capture
09-25 21:26	80m	-18 / -14	DJ3JD	+2 / -8	3	✓ Full exchange observed
09-25 21:20	80m	-12 / -	DF4WC	-5 / -	4	✓ Closing observed
09-25 21:18	80m	-6 / -13	HA7VC/P	+5 / -	3	✓ Closing observed
09-25 21:13	80m	-4 / -11	Z62NS	+3 / -10	10	✓ Full exchange observed
09-25 21:09	80m	- / -17	DK9PH	+10 / -	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
201100  +4  312  IZ3ZUS IZ8XQC -11 (x3)
201445 -17 1281  OK1XOE IZ3ZUS JN65 (x2)
202315  +1 2957  IZ3ZUS DA1ST -10 (x2)
205330  +7 2302  IZ3ZUS 9A60CBM -20
205630  -3 1198  IZ3ZUS DK6WS -21
205645  -8 1319  DK6WS IZ3ZUS R-08
205700  -7 1198  IZ3ZUS DK6WS RR73
210345 -10 1319  DL7BRD IZ3ZUS JN65
210700  +7 1075  IZ3ZUS DL6EI -13
210715 -14 1319  DL6EI IZ3ZUS R-08
210730  +9 1075  IZ3ZUS DL6EI RR73

60m

UTC    dB Audio  Message
174930 -14 1311  DL3FAV IZ3ZUS JN65 (x2)
175030  -7 1312  HB9HFJ IZ3ZUS JN65 (x6)
175415  -7 1311  6W/IK2HKT IZ3ZUS JN65 (x2)
175500  -7 1980  IZ3ZUS F/YO6BLM -11
204400 -10 1351  AO40EUDXF IZ3ZUS JN65 (x2)
204445  -7 1154  IZ3ZUS 9A60CBM -09
204500 -14 1351  AO40EUDXF IZ3ZUS R-01

10m

UTC    dB Audio  Message
090745  -8 1205  IZ3ZUS PD1ALW -19 (x2)
100030  -2  639  IZ3ZUS 4X5MZ RR73
104015  -7 1167  IZ3ZUS CR7BUJ -11
105830  +2 2789  IZ3ZUS EA7Z IM67 (x2)

20m

UTC    dB Audio  Message
160045 -23 1372  IZ3ZUS IT9KVQ R-01
165915 -18 1478  IZ3ZUS EA6TU -01
170145 -21 1364  IZ3ZUS R5AV RR73
205345 -16 2255  IZ3ZUS PI4DX +08 (x2)
201600  -3  873  IZ3ZUS MM0GTU -05 (x2)
202700  -3 1354  IZ3ZUS F4ACR IN96 (x3)
203230  -9 1144  IZ3ZUS GB2EL -15 (x4)
162030 -12 1348  IZ3ZUS II7MGMU +06

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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