IU5OGC — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN53

Receiver-side FT8 activity involving IU5OGC, decoded by SO8OO in southeastern Poland. 64 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 10 UTC dates in the available aggregate history. Observed between 2026-07-13 and 2026-08-29.

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 64 FT8 messages attributed to IU5OGC as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (64%), followed by 40 m (20%) and 10 m (16%). Several six-hour UTC windows tied for the largest share (61%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

40m · 13 20m · 41 10m · 10

First attributed message: 2026-07-13
Last attributed message: 2026-08-29 13:52 UTC

Observed FT8 message patterns

Attributed sample: 64 messages
Active dates: 10 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -17 to +4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 11, moderate (-15 to -9 dB) 23, strong (≥ -8 dB) 30.

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 IU5OGC in decoded directed-looking exchanges:

EW1TA · Belarus K9DN · United States CR5VP · Portugal EB3JT · Spain RG8G · European Russia SV1TRJ · Greece US2YW · Ukraine ON4CJU · Belgium

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 IU5OGC

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: JN53 · 38 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,089 km (approx.)
Last such locator decoded: 2026-08-29 13:49 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	IU5OGC S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-29 13:50	20m	+2 / -14	RG8G	+5 / -5	6	✓ Full exchange observed
08-29 13:48	20m	-2 / -	EB3JT	+16 / +2	9	✓ Closing observed
08-29 13:46	20m	+6 / -	RI1FJL	- / -	2	Partial capture
08-29 13:40	20m	-4 / -	SV1TRJ	- / -10	2	✓ Closing fragment
08-29 13:38	20m	0 / -	M0CKX	- / -	3	Partial capture
08-29 07:54	10m	-3 / -	TA3LY	- / -	4	Partial capture
08-27 09:13	10m	-3 / -	EW1TA	- / -22	3	✓ Closing fragment
08-16 21:22	40m	-14 / -	UB1AVZ/P	- / -	10	Partial capture
08-15 20:20	40m	-16 / -11	US2YW	-15 / -10	4	✓ Full exchange observed
08-15 13:37	20m	-16 / -	CR5VP	- / -	3	✓ Closing fragment
08-14 14:35	20m	-10 / -	<...>	- / -18	2	Partial capture
08-13 19:52	80m	- / -24	ON4CJU	-16 / -	2	✓ Closing fragment
08-12 07:19	20m	-10 / -	CR5VP	- / -	2	Partial capture
08-10 13:00	20m	-12 / -	<...>	- / -21	12	Partial capture
07-18 16:53	20m	- / -	UA9SAV	-3 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
134900 +18  358  IU5OGC EB3JT JN01
134915  +3  356  CQ IU5OGC JN53
134930 +15  358  IU5OGC EB3JT JN01
134945 +10  355  CQ IU5OGC JN53
135000  +6 2629  IU5OGC RG8G -14
135000 +17  358  IU5OGC EB3JT JN01
135030  +4 2629  IU5OGC RG8G -14
135030 +15  357  IU5OGC EB3JT JN01
135045  +4  356  RG8G IU5OGC R-05
135100  +3 2629  IU5OGC RG8G RR73
135115  +1 2070  RG8G IU5OGC 73
135130  +7 2629  IU5OGC RG8G RR73
135145  -2 2071  EB3JT IU5OGC +02 (x2)
135230 +13  358  IU5OGC EB3JT 73

10m

UTC    dB Audio  Message
162630 -22 1375  K9DN IU5OGC 73
162645 -10 2271  IU5OGC SV2AOB KN10
162830 -21 1375  <...> IU5OGC R-18
091345  -5  668  EW1TA IU5OGC R-22 (x3)
075430  -4  838  TA3LY IU5OGC JN53 (x4)
075630  -7  839  I4GAS IU5OGC JN53

40m

UTC    dB Audio  Message
202045 -15 1257  US2YW IU5OGC -10
202100 -20 1256  IU5OGC US2YW R-11
202115 -17 1257  US2YW IU5OGC RR73
202130 -10 1256  IU5OGC US2YW 73
211900 -12  729  CR5VP IU5OGC JN53
212215 -15 2414  UB1AVZ/P IU5OGC JN53 (x10)

80m

UTC    dB Audio  Message
195215 -24 2595  IU5OGC ON4CJU -24 (x2)

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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