IU5SGK — 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

Receiver-side FT8 activity involving IU5SGK, decoded by SO8OO in southeastern Poland. 67 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 5 UTC dates in the available aggregate history. Observed between 2026-08-07 and 2026-11-06.

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 67 FT8 messages attributed to IU5SGK as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (42%), followed by 40 m (36%) and 10 m (22%). Several six-hour UTC windows tied for the largest share (70%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (61%); the estimated median was -7 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-7 dB

Estimated median S/N

Bands

40m · 24 20m · 28 10m · 15

First attributed message: 2026-08-07
Last attributed message: 2026-11-06 09:40 UTC

Observed FT8 message patterns

Attributed sample: 67 messages
Active dates: 5 UTC dates
Estimated median S/N: -7 dB
Estimated 10th-90th percentile: -16 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 16, strong (≥ -8 dB) 41.

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 IU5SGK in decoded directed-looking exchanges:

5R8IC · Madagascar R8LCA · Asiatic Russia UN7AM · Kazakhstan YO9IE · Romania EY7BP · Tajikistan

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.

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	IU5SGK S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-06 09:46	10m	- / -9	UN7AM	-19 / -	2	✓ Closing fragment
11-06 09:38	10m	-12 / -	UN8QB	- / -19	3	Partial capture
11-06 09:37	10m	-14 / -	Z35YL	- / -23	2	Partial capture
11-06 09:33	10m	-5 / -	6W/IK2HKT	- / -12	2	Partial capture
11-06 09:32	10m	-10 / -	YO9IE	- / -5	2	✓ Closing fragment
11-06 09:31	10m	-14 / -	R8LCA	- / -16	2	✓ Closing fragment
11-06 09:29	10m	-8 / -	5R8IC	- / -8	3	✓ Closing fragment
11-03 15:39	40m	-9 / -	LY3PW	- / -13	3	Partial capture
11-03 15:35	40m	-1 / -	VK4LK	- / -22	5	Partial capture
11-03 15:34	40m	- / +1	4Z1BO	-11 / -	8	Partial capture
10-31 15:51	40m	-7 / -	EX8ABR	- / -17	3	Partial capture
10-31 15:49	40m	-6 / -	EY7BP	- / -22	3	✓ Closing fragment
10-31 15:44	40m	-1 / -	ZL1VAH	- / -22	3	Partial capture
10-31 07:26	40m	-18 / -	PV8AJ	- / -19	2	Partial capture
10-25 09:01	40m	-14 / -	MI7XHT	- / -21	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
093045  -3  967  5R8IC IU5SGK RR73
093115 -16 1792  R8LCA IU5SGK -16 (x2)
093215 -11 1090  YO9IE IU5SGK R-05 (x2)
093315  -2  777  6W/IK2HKT IU5SGK -12 (x2)
093730 -11 2053  Z35YL IU5SGK -23 (x2)
093830 -10 2263  UN8QB IU5SGK -19 (x3)
094000 -18 1180  HL4GAV IU5SGK -11
094615 -19 1244  IU5SGK UN7AM 73 (x2)

40m

UTC    dB Audio  Message
153515  -4 2567  VK4LK IU5SGK -22
153530 -12 2375  IU5SGK 4Z1BO R+01
153545  +1 2567  VK4LK IU5SGK -22
153600  -9 2375  IU5SGK 4Z1BO R+01
153615  -5 2568  VK4LK IU5SGK -22
153630 -11 2375  IU5SGK 4Z1BO R+01
153645  -1 2567  VK4LK IU5SGK -22
153700 -10 2375  IU5SGK 4Z1BO R+01
153715  +3 2567  VK4LK IU5SGK -22
153730  -8 2375  IU5SGK 4Z1BO R+01
153815  -3  741  3A2LF IU5SGK +00
153830 -10 2375  IU5SGK 4Z1BO R+01
153915 -10 1561  LY3PW IU5SGK -13 (x3)

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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