YO4IAO — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Romania Locator transmitted in a decoded message: KN44

Receiver-side FT8 activity involving YO4IAO, decoded by SO8OO in southeastern Poland. 213 related FT8 messages, observed on 40m, 20m, 10m, across 17 UTC dates. Heard between 2026-06-17 and 2026-08-01.

These are automated observations at the SO8OO receiver, not the station's official logbook. Times are UTC. Decoder S/N describes messages received at SO8OO; inferred entity and location data may be inaccurate for portable, remote or special-event operation.

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Overview

213

Related messages

CQ messages

UTC dates heard

-9 dB

Mean decoder S/N

Bands

20m 40m 10m

First seen: 2026-06-17
Last seen: 2026-08-01 13:42 UTC

Frequent QSO partners observed at SO8OO

Stations YO4IAO worked most often, as logged from our receiver:

F4HTA · France ×2 CT7AUT · Portugal ×2 EC8AXS · Canary Islands IQ0VT · Italy SV5BYP · Dodecanese ED7SUN · Spain CS8ABF · Azores EA1N · Spain OZ7DR · Denmark YO6PNM · Romania DN9AD · Fed. Rep. of Germany 4X1UF · Israel

Activity Heatmap

Locator transmitted by YO4IAO

Approximate centre of KN44, decoded 2026-07-29 18:06 UTC. A transmitted locator is not proof of the operator's permanent location.

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	YO4IAO S/N	Counterpart	Counterpart S/N	Msgs	Capture
07-29 18:51	10m	- / -	DN9OPA	-9 / -	3	Partial capture
07-29 17:51	10m	-19 / -4	9A4ZM	-21 / -	2	✓ Closing observed
07-26 19:26	20m	-16 / -13	JA0LFV	-17 / +3	5	✓ Full exchange observed
07-26 16:39	20m	-6 / -	YO2LIM	- / +6	2	Partial capture
07-25 19:53	20m	- / -	DL3MIB	-14 / -	5	Partial capture
07-25 18:46	20m	-12 / -	CT7BCP	- / -15	2	Partial capture
07-25 18:27	20m	-19 / -2	CN2DX	+2 / -	5	✓ Closing observed
07-19 21:11	40m	-8 / -	<...>	- / -	3	Partial capture
07-19 21:06	40m	-13 / -6	RC6OD	-8 / 0	4	✓ Full exchange observed
07-19 21:02	40m	-12 / -18	ED7SUN	-6 / -8	6	✓ Full exchange observed
07-19 20:58	40m	-11 / -18	ED7SUN	-9 / -	3	Partial capture
07-19 20:34	40m	-17 / -	TA3ZZ	- / -5	3	✓ Closing fragment
07-19 20:32	40m	-16 / -	OH2BVT	- / -	2	Partial capture
07-11 19:54	20m	- / -7	PC2J	-15 / -	7	Partial capture
07-11 19:37	20m	- / -13	9A4ZM	-15 / -	2	Partial capture
07-08 22:22	20m	- / -	EA5GDY	+2 / -	4	✓ Closing fragment
07-08 22:15	20m	- / -7	EA5GDY	+2 / -	2	Partial capture
07-07 21:51	20m	- / -8	SV5BYP	-18 / -	3	✓ Closing fragment
07-07 21:31	20m	- / -12	VE3XN	-10 / -	2	✓ Closing fragment
07-07 21:14	20m	- / +1	F4HTA	-11 / -	2	✓ Closing fragment
07-07 21:09	20m	- / -7	EA1N	+6 / -	2	✓ Closing fragment
07-07 20:52	20m	- / -9	F4HTA	-10 / -	2	✓ Closing fragment
07-06 17:56	20m	- / +6	CT7AUT	-1 / -	4	✓ Closing fragment
07-06 17:33	20m	- / -	EA8AT	-9 / -	2	Partial capture
07-06 17:22	20m	- / -16	OZ9FF	-16 / -	3	Partial capture
07-06 17:20	20m	- / +2	9A5E	-8 / -	6	✓ Closing fragment
07-06 16:54	20m	- / -18	EB5IBZ	-21 / -	2	✓ Closing fragment
07-06 16:30	20m	- / -2	SP6AXW	-11 / -	7	Partial capture
06-26 16:19	10m	- / -10	F1PBZ	-3 / -	3	Partial capture
06-26 08:30	10m	- / -	DL8UVG	-2 / -	2	Partial capture
06-26 08:29	10m	- / -	DG6TOM	+4 / -	2	Partial capture
06-26 08:22	10m	- / -	DG6TOM	-1 / -	2	Partial capture
06-26 08:13	10m	- / -11	DL3NGN	-12 / -	14	Partial capture
06-25 21:42	20m	-21 / -	KF0YOB	- / -	3	Partial capture
06-25 21:31	20m	-18 / -17	F4IVG	+1 / -14	9	✓ Full exchange observed
06-25 21:21	20m	-18 / -7	CS8ABF	0 / -4	4	✓ Full exchange observed
06-25 21:15	20m	- / -	M7CYY	-18 / -	2	Partial capture
06-25 21:11	20m	-22 / -	DB5BC	- / -17	3	Partial capture
06-25 21:09	20m	-20 / +1	E75C	-18 / -1	4	✓ Full exchange observed
06-25 20:53	20m	- / -13	GM3JIM	-12 / -	3	Partial capture
06-25 20:48	20m	- / -14	GM3JIM	-15 / -	2	Partial capture
06-25 20:35	20m	- / -7	GM3JIM	-16 / -	3	Partial capture
06-25 20:26	20m	-18 / -	JA0LFV	- / -5	2	Partial capture
06-25 20:04	20m	-17 / -	F4UEF	- / -	2	Partial capture
06-25 19:57	20m	-12 / -11	YO6OGW	-6 / -7	12	Partial capture
06-25 10:28	20m	-22 / -23	IK4LZH	0 / -15	6	Partial capture
06-25 10:24	20m	-24 / -17	IK4LZH	+4 / -14	2	Partial capture
06-25 10:18	20m	-23 / -	G4DBW	- / -	3	✓ Closing fragment
06-25 10:16	20m	- / -24	IK4LZH	+7 / -	3	Partial capture
06-24 20:58	20m	-16 / -	KF0YOB	- / -	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
161915  -4 2685  YO4IAO F1PBZ -10 (x3)
174700  -4  695  SP6FCQ YO4IAO RR73
175100 -21 1466  YO4IAO 9A4ZM R-04
175145 -19 1468  9A4ZM YO4IAO 73
175630 -14 1051  M0LOW YO4IAO R-14
175800 -23 1849  PW8BR YO4IAO KN44
180400 -20 1386  DN9AD YO4IAO RR73
180630 -15 2122  XQ3SK YO4IAO KN44
184845 -23 2126  YO4IAO XQ3SK -18
185115 -11 2368  YO4IAO DN9OPA JN38 (x3)
154245 -17 1493  YO4IAO IU3LWI RR73

20m

UTC    dB Audio  Message
195445 -17 1108  YO4IAO DL3MIB JN57 (x3)
163915 -10  785  YO2LIM YO4IAO KN44 (x2)
164615  +6  401  BG2ATH YO4IAO KN44
192615 -16 2328  JA0LFV YO4IAO KN44
192630 -17 2332  YO4IAO JA0LFV -13 (x2)
192715 -16 2324  JA0LFV YO4IAO R+03
192730 -16 2332  YO4IAO JA0LFV RR73
111815 -17 2422  YO4IAO <...> -17
113215 -14 2633  YO4IAO IU5HIU R-08
121345 -22 1882  YO4IAO RL2F -09
123030  +1  529  YO4IAO GJ0KYZ RR73

40m

UTC    dB Audio  Message
205915 -11 2369  ED7SUN YO4IAO KN44
205930  -9 2370  YO4IAO ED7SUN -18
210215 -11 2368  ED7SUN YO4IAO R-08
210230  -7 2370  YO4IAO ED7SUN -18 (x2)
210315 -12 2367  ED7SUN YO4IAO R-07
210330  -5 2370  YO4IAO ED7SUN RR73 (x2)
210600  -8  965  YO4IAO RC6OD -06
210615 -13  965  RC6OD YO4IAO R+00
210630  -7  965  YO4IAO RC6OD RR73
210645 -13  965  RC6OD YO4IAO 73
211115  -6  737  <...> YO4IAO KN44 (x3)

Decoder S/N history by band

Daily averages across messages associated with this profile as decoded at SO8OO.