IR5RTSE — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy

Receiver-side FT8 activity involving IR5RTSE, decoded by SO8OO in southeastern Poland. 3,212 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 23 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-06-28.

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 3,212 FT8 messages attributed to IR5RTSE as the transmitting token by decoded message structure across 23 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (66%), followed by 20 m (21%) and 10 m (14%). The busiest six-hour window was 05:00-11:00 UTC, containing 48% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.

Overview

3,212

Messages attributed

UTC dates decoded

289

Active 15-min windows

-7 dB

Estimated median S/N

Bands

80m · 1 40m · 2,104 20m · 666 10m · 441

First attributed message: 2026-06-06
Last attributed message: 2026-06-28 15:14 UTC

Observed FT8 message patterns

Attributed sample: 3,212 messages
Active dates: 23 UTC dates
Estimated median S/N: -7 dB
Estimated 10th-90th percentile: -18 to +7.6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 547, moderate (-15 to -9 dB) 850, strong (≥ -8 dB) 1,815.

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 IR5RTSE in decoded directed-looking exchanges:

IQ4JO · Italy OG50YL · Finland OK1ZJK · Czech Republic IZ7DOK · Italy SQ2BXI · Poland

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	IR5RTSE S/N	Counterpart	Counterpart S/N	Msgs	Capture
06-28 15:13	10m	-12 / -	PD1BER	-17 / -13	3	Partial capture
06-28 15:11	10m	-14 / -	<...>	-8 / -	4	✓ Closing fragment
06-28 15:04	10m	-15 / -	PD1BER	- / -10	3	Partial capture
06-28 15:03	10m	-14 / -	<...>	- / -	2	✓ Closing fragment
06-28 14:58	10m	-12 / -	<...>	- / -	2	✓ Closing fragment
06-28 14:39	20m	- / -9	SQ3JVA	-2 / -	2	Partial capture
06-28 14:34	20m	-17 / -	<...>	-9 / -	3	✓ Closing fragment
06-28 14:12	20m	-24 / -	<...>	- / -	2	✓ Closing fragment
06-28 10:33	20m	-24 / -	<...>	-13 / -	2	✓ Closing fragment
06-28 10:23	20m	-20 / -	KE8NQL	- / -12	2	Partial capture
06-28 10:21	20m	-18 / -	<...>	-20 / -	3	✓ Closing fragment
06-28 10:14	20m	-20 / -	<...>	-9 / -	4	✓ Closing fragment
06-28 08:22	20m	- / -12	G6LUE	-18 / -	2	Partial capture
06-28 08:19	20m	- / -	<...>	-17 / -	2	✓ Closing fragment
06-27 08:49	20m	-11 / -	<...>	- / -	3	✓ Closing fragment
06-27 08:46	20m	-9 / -	<...>	-20 / -	3	✓ Closing fragment
06-27 08:41	20m	-12 / -	DF2FE	-16 / 0	2	Partial capture
06-27 08:38	20m	-11 / -	<...>	-15 / -	2	✓ Closing fragment
06-27 08:38	20m	-10 / +8	DL2RTU	-16 / +2	3	Partial capture
06-27 08:34	20m	-14 / -	<...>	- / -	2	✓ Closing fragment
06-27 03:34	40m	-13 / -	<...>	-12 / -	5	✓ Closing fragment
06-27 03:26	40m	-12 / -	<...>	-21 / -	5	✓ Closing fragment
06-27 03:20	40m	-19 / -8	UA3WG	-8 / -9	3	Partial capture
06-27 03:18	40m	-12 / -	SQ9CXH	- / -8	2	Partial capture
06-27 03:17	40m	-12 / -	<...>	-12 / -	7	✓ Closing fragment
06-27 03:12	40m	-10 / -	SQ2BXI	- / -	2	✓ Closing fragment
06-27 02:59	40m	-10 / -	<...>	- / -	10	✓ Closing fragment
06-27 02:56	40m	-14 / +1	ON4MAP	-24 / -4	2	Partial capture
06-27 02:56	40m	-10 / -	<...>	- / -	2	✓ Closing fragment
06-27 02:48	40m	-14 / -	<...>	-15 / -	3	✓ Closing fragment
06-27 02:47	40m	-9 / -3	W6NWS	-14 / -1	2	Partial capture
06-26 07:32	20m	-10 / -	<...>	- / -	3	✓ Closing fragment
06-26 07:31	20m	- / -	OE6TNO	-4 / -	6	Partial capture
06-26 07:26	20m	-11 / +5	OK1ZJK	-8 / -15	4	✓ Full exchange observed
06-26 07:25	20m	-5 / -	<...>	- / -	5	✓ Closing fragment
06-26 07:12	10m	-10 / -	<...>	-5 / -	2	✓ Closing fragment
06-25 09:27	20m	-18 / -	<...>	-15 / -	3	✓ Closing fragment
06-25 06:49	20m	-22 / -	<...>	+10 / -	2	✓ Closing fragment
06-25 06:42	20m	- / +1	DL2RTU	-12 / -	2	Partial capture
06-25 05:59	20m	-23 / -	<...>	-19 / -	3	✓ Closing fragment
06-25 05:52	20m	-22 / -	IQ4JO	- / -11	2	Partial capture
06-25 05:46	20m	-20 / -	<...>	-17 / -	7	✓ Closing fragment
06-25 05:37	20m	-24 / -19	EA5RO	-20 / -3	2	Partial capture
06-25 05:35	20m	-24 / -	<...>	-18 / -	6	✓ Closing fragment
06-24 13:00	20m	-22 / -	<...>	-21 / -	2	✓ Closing fragment
06-24 11:11	10m	-20 / -	<...>	- / -	2	✓ Closing fragment
06-24 10:32	10m	-8 / -	OE1KSG	- / +1	2	Partial capture
06-24 10:28	10m	-10 / -	PE1ARS	- / +1	2	Partial capture
06-24 10:26	10m	-9 / -	<...>	- / -	7	✓ Closing fragment
06-24 10:22	10m	-8 / -	<...>	- / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
150315 -15 1853  DO4RY IR5RTSE -16
150345 -14 1853  <...> IR5RTSE RR73
150415 -13 1853  CQ IR5RTSE
150445 -13 1853  PD1BER IR5RTSE -10
150545 -14 1853  <...> IR5RTSE 73
150615 -16 1853  PD1BER IR5RTSE -04 (x3)
151115 -16 1853  <...> IR5RTSE RR73
151130 -17 2123  IR5RTSE <...> 73
151315 -11 1853  <...> IR5RTSE RR73
151330 -17 2199  <IR5RTSE> PD1BER JO22
151330  +1 1030  IR5RTSE <...> 73
151345  -9 1853  PD1BER IR5RTSE -13 (x2)

20m

UTC    dB Audio  Message
141145 -23 1841  CQ IR5RTSE
141215 -23 1841  GI3KVD IR5RTSE -10
141245 -24 1841  <...> IR5RTSE RR73
141315 -18 1841  CQ IR5RTSE
141345 -20 1841  DG3MGW IR5RTSE -05
141415 -24 1841  <...> IR5RTSE RR73
142445 -21 1841  CQ IR5RTSE
143400  -8 1161  IR5RTSE <...> 73
143445 -17 1840  <...> IR5RTSE RR73
143600 -10  908  IR5RTSE <...> 73
143900  +0  908  IR5RTSE SQ3JVA JO82 (x2)
144330  -4  768  IR5RTSE <...> 73 (x2)
145330 -24 1840  IR5RTSE OE5WRO JN78

40m

UTC    dB Audio  Message
033915 -13 1399  CQ IR5RTSE (x3)
051145 -18 1446  9A2TN IR5RTSE -04
051215 -19 1445  <...> IR5RTSE RR73
051245 -18 1446  CQ IR5RTSE (x2)
051415 -17 1446  SM6FZO IR5RTSE -13
051445 -15 1446  <...> IR5RTSE RR73
051545 -15 1446  CQ IR5RTSE (x5)
052345 -20 1446  <...> IR5RTSE 73

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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