IZ8GUU — 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: JN70

Receiver-side FT8 activity involving IZ8GUU, decoded by SO8OO in southeastern Poland. 1,124 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 51 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-21.

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 1,124 FT8 messages attributed to IZ8GUU as the transmitting token by decoded message structure across 51 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (89%), followed by 20 m (10%) and 10 m (1%). Several six-hour UTC windows tied for the largest share (48%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

1,124

Messages attributed

UTC dates decoded

132

Active 15-min windows

-11 dB

Estimated median S/N

Bands

40m · 1,000 20m · 112 10m · 12

First attributed message: 2026-06-07
Last attributed message: 2026-10-21 19:27 UTC

Observed FT8 message patterns

Attributed sample: 1,124 messages
Active dates: 51 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -18 to -1.9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 280, moderate (-15 to -9 dB) 434, strong (≥ -8 dB) 410.

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 IZ8GUU in decoded directed-looking exchanges:

GJ0KYZ · Jersey ×4 RZ4FWA · European Russia ×3 F3CJ · France ×3 MW7RHR · Wales ×3 EA4IXY · Spain ×2 EU6KA · Belarus ×2 F6KFT · France ×2 IK2EBP · Italy ×2 JO4IPQ · Japan ×2 M9XPN · England ×2 ON1BH · Belgium ×2 R2FBW · Kaliningrad ×2

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 IZ8GUU

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: JN70 · 519 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,175 km (approx.)
Last such locator decoded: 2026-10-21 19:27 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	IZ8GUU S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-21 05:34	40m	-11 / -5	GJ0KYZ	-8 / -5	4	✓ Full exchange observed
10-21 05:32	40m	-15 / -	KE5ETC	- / -12	4	✓ Closing fragment
10-19 20:46	40m	- / -6	ON1BH	-6 / -	2	✓ Closing fragment
10-19 20:45	40m	- / -4	F1PBZ	+6 / -	2	✓ Closing fragment
10-19 20:42	40m	- / +3	PD7BDN	-5 / -	3	✓ Closing fragment
10-18 05:16	40m	-7 / -	WB5TUF	- / -6	3	Partial capture
10-18 05:14	40m	-3 / -	F4HSB	-16 / -	4	✓ Closing observed
10-18 05:14	40m	- / -	DL4RY	-4 / -	2	✓ Closing fragment
10-18 05:07	40m	-9 / -	R4FDD	- / -10	3	✓ Closing fragment
10-18 05:04	40m	-16 / -	TA1MB	-16 / -	3	✓ Closing observed
10-18 05:01	40m	-14 / +10	TA3NK	-12 / -13	4	✓ Full exchange observed
10-17 20:51	40m	- / +3	IZ4AIF	-2 / -	2	✓ Closing fragment
10-17 20:35	40m	- / +8	M7XDS	-8 / -	4	✓ Closing fragment
10-17 20:31	40m	- / -	DM4GG	-4 / -	3	✓ Closing fragment
10-16 20:06	40m	-6 / +5	PG0T	-9 / -6	4	✓ Full exchange observed
10-16 20:02	40m	-14 / -4	G4DBW	-13 / -	3	✓ Closing observed
10-16 19:59	40m	-10 / -	JA1QWT	- / -10	2	✓ Closing fragment
10-14 16:21	40m	- / -	YO4GOU	-20 / -	2	Partial capture
10-14 16:15	40m	-11 / -	M8MFU	- / -10	2	✓ Closing fragment
10-14 06:02	40m	- / -	G7IGN	-20 / -	2	Partial capture
10-14 05:58	40m	-17 / +9	IK4RVY	-8 / -	3	✓ Closing observed
10-14 05:57	40m	-16 / +7	F4DVP	-16 / -	2	✓ Closing observed
10-14 05:56	40m	-17 / -1	HA3TBL	-12 / -	3	✓ Closing observed
10-14 05:54	40m	-16 / -5	DG4YT	-16 / -	3	✓ Closing observed
10-13 17:57	40m	- / +1	2I0WAI	-6 / -	4	✓ Closing fragment
10-13 17:57	40m	-10 / -11	IK6GTF	-8 / -	2	✓ Closing observed
10-13 17:55	40m	-12 / -	SP9ALK	- / -5	2	✓ Closing fragment
10-13 17:50	40m	-12 / -9	RU4SS	-15 / -	4	✓ Closing observed
10-13 17:48	40m	- / -10	R6DJR	-8 / -	2	Partial capture
10-13 17:47	40m	-13 / -	DB7QE	-5 / -	2	✓ Closing observed
10-13 17:45	40m	-11 / -5	SQ2BXI	-7 / -	4	✓ Closing observed
10-13 17:41	40m	-6 / -1	M9XPN	-9 / -	4	✓ Closing observed
10-13 17:39	40m	-12 / -	UN7GGB	- / -16	4	Partial capture
10-13 17:36	40m	-13 / +2	YO9RAO	-8 / -5	6	✓ Full exchange observed
10-12 19:28	40m	-8 / -	R4FEO	- / -9	2	✓ Closing fragment
10-12 19:26	40m	-10 / +7	DH1JAD	-11 / -5	7	✓ Full exchange observed
10-12 19:24	40m	-8 / -	S57BTI	- / -17	2	✓ Closing fragment
10-12 07:36	40m	-18 / -1	IU3VGK	-22 / -8	3	✓ Full exchange observed
10-12 07:35	40m	-17 / -	IW2CZE	- / -1	2	✓ Closing fragment
10-12 07:32	40m	-12 / -	OS7P	-16 / -9	3	✓ Closing observed
10-12 07:28	40m	- / -10	DG1KFR	-13 / -	3	Partial capture
10-12 07:26	40m	- / -8	YO2LZS	-18 / -	2	✓ Closing fragment
10-12 07:25	40m	-19 / -15	DG6TOM	-4 / -	2	✓ Closing observed
10-12 07:20	40m	-18 / -	G0JEI	- / -10	2	✓ Closing fragment
10-11 19:26	40m	-7 / -	G7KNF	- / -11	2	✓ Closing fragment
10-11 04:59	40m	- / -12	R7MP	-18 / -	2	✓ Closing fragment
10-11 04:50	40m	- / -18	OK1AY	-7 / -	2	Partial capture
10-11 04:43	40m	- / -13	UA3ADE	-1 / -	2	✓ Closing fragment
10-11 04:19	40m	- / -	SV5BYP	-5 / -	2	✓ Closing fragment
10-11 04:13	40m	- / -16	R4FDD	-4 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
053130 -15 1374  CQ IZ8GUU JN70
053230 -14 1374  KE5ETC IZ8GUU -12 (x4)
053415  -8 1374  IZ8GUU GJ0KYZ -05
053430 -12 1374  GJ0KYZ IZ8GUU R-05
053445  -7 1374  IZ8GUU GJ0KYZ RR73
053500 -10 1374  GJ0KYZ IZ8GUU 73
075400  -9 1374  CQ IZ8GUU JN70
075545 -23 1942  IZ8GUU PD0JEW JO22
192515 -15 1410  CQ IZ8GUU JN70
192715 -17 1410  JO4IPQ IZ8GUU RR73
192745 -17 1410  CQ IZ8GUU JN70                        a1
044330 -22 1870  IZ8GUU TA3XEE KM38

60m

UTC    dB Audio  Message
214830  -7 1412  IZ8GUU ON7KEI JO21

20m

UTC    dB Audio  Message
114215  +5 1448  CQ IZ8GUU JN70 (x4)
114500  -7 1746  IZ8GUU F4HSB JN37 (x2)
114545  -1 1448  TA2ZLM IZ8GUU RR73
114615  -2 1448  CQ IZ8GUU JN70
114645  -6 1448  EA4ALK IZ8GUU -12 (x2)
123000  -3 1574  IZ8GUU OK3MB JO70 (x2)
145430  -3 1448  IZ8GUU PD0JCH JO11 (x3)

10m

UTC    dB Audio  Message
061830 -18 1453  IZ8GUU RN6MA -12

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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