4X1YY — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Israel Locator transmitted in a decoded message: KM71

Receiver-side FT8 activity involving 4X1YY, decoded by SO8OO in southeastern Poland. 833 related FT8 messages, 145 CQ messages, observed on 40m, 20m, 10m, across 23 UTC dates. Heard between 2026-05-20 and 2026-08-17.

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

833

Related messages

145

CQ messages

UTC dates heard

-8 dB

Mean decoder S/N

Bands

20m 40m 10m

First seen: 2026-05-20
Last seen: 2026-08-17 06:03 UTC

Frequent QSO partners observed at SO8OO

Stations 4X1YY worked most often, as logged from our receiver:

HA3GX · Hungary ×2 LU7HF · Argentina OK1DBE · Czech Republic DK9BF · Fed. Rep. of Germany TA2ED · Asiatic Turkey PD9OH · Netherlands ON7AN · Belgium YT1DDL · Serbia F4LNM · France CT7AIU · Portugal F5OZK · France F1ODM · France

Activity Heatmap

Locator transmitted by 4X1YY

Approximate centre of KM71, decoded 2026-08-17 08:03 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	4X1YY S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-10 06:04	20m	- / -	RA3DAD	-12 / -	2	Partial capture
08-10 06:03	20m	- / -5	IW4AOT	-1 / -	3	Partial capture
08-10 06:02	20m	- / -15	YT1DDL	-5 / -	3	✓ Closing fragment
08-10 05:58	20m	-8 / -3	SP2GCJ	+4 / -	7	✓ Closing observed
08-10 05:56	20m	- / -5	IW4AOT	-2 / -	2	Partial capture
08-10 05:56	20m	- / -	R2EC	-5 / -	3	Partial capture
08-10 05:51	20m	- / -7	IW4AOT	+1 / -	5	Partial capture
08-10 05:24	20m	- / -	DL1UDO	-20 / -	2	Partial capture
08-10 05:22	20m	- / -7	IW4AOT	+1 / -	8	Partial capture
08-10 05:20	20m	-6 / -	W6WG	- / -14	2	Partial capture
08-10 05:15	20m	0 / -	W6WG	- / -14	5	Partial capture
08-10 05:12	20m	- / -	DF1KG	-22 / -	2	Partial capture
08-10 05:10	20m	- / -	R7OV	0 / -	5	Partial capture
08-10 05:08	20m	-9 / -18	F4LNM	-4 / -	4	✓ Closing observed
08-10 05:06	20m	- / -14	PD3FR	-3 / -	2	✓ Closing fragment
08-09 21:00	20m	- / -	M9VVE	-12 / -	2	Partial capture
08-09 20:47	20m	-3 / -	M9VVE	-11 / -10	8	Partial capture
08-09 20:46	20m	- / -	EA8ACW	-12 / -	5	Partial capture
08-09 20:41	20m	-1 / -	JA3FYC	- / -12	4	✓ Closing fragment
08-09 20:36	20m	-4 / -	K4KWZ	- / -	3	Partial capture
08-09 20:28	20m	-4 / -	W3YNI	- / -13	6	✓ Closing fragment
08-09 20:27	20m	- / -	2E1HAT	+3 / -	3	Partial capture
08-09 20:20	20m	-4 / -	HA3GX	- / -2	2	✓ Closing fragment
08-09 20:15	20m	-4 / -	WV2B	- / -10	6	✓ Closing fragment
08-09 20:11	20m	- / -	M7VKI	0 / -	2	Partial capture
08-09 20:09	20m	-3 / -	N2BJ	- / -	3	Partial capture
08-09 20:06	20m	-3 / -	PD0RCQ	- / -11	2	✓ Closing fragment
08-09 20:04	20m	- / -	2E1HAT	-11 / -	2	Partial capture
08-09 20:03	20m	0 / -	HA3GX	- / -3	3	Partial capture
08-09 20:00	20m	-2 / -	ON7AC	- / -14	2	✓ Closing fragment
08-09 19:59	20m	- / -	2E1HAT	-5 / -	4	Partial capture
07-16 04:59	20m	- / -	R7OV	-14 / -	3	Partial capture
07-16 04:57	20m	- / -	UA4PDJ	-14 / -	3	Partial capture
07-10 08:57	20m	- / -	EI8HV	-19 / -	2	Partial capture
07-10 08:57	20m	- / -	UR7IWW	-16 / -	2	Partial capture
07-10 08:56	20m	- / -	DL1UDO	-16 / -	2	Partial capture
07-10 08:56	20m	- / -	IK4LZH	+10 / -	4	Partial capture
07-10 08:55	20m	- / -	IZ4AIF	-11 / -	3	Partial capture
07-10 08:52	20m	-17 / -	PD9OH	-14 / -	3	✓ Closing observed
07-10 08:48	20m	-14 / -	YO5COG	- / -4	2	✓ Closing fragment
07-10 08:46	20m	- / -	IU4QQE	-18 / -	16	Partial capture
07-10 08:41	20m	-20 / -	OK1WCF	- / -	2	Partial capture
07-10 08:34	20m	- / -14	EC3A	-11 / -	4	✓ Closing fragment
07-10 08:19	20m	- / -	DL1UDO	-16 / -	2	Partial capture
07-10 08:18	20m	- / -	F4BYA	-6 / -	2	Partial capture
07-10 08:08	20m	-15 / -	TA2ED	- / -4	2	✓ Closing fragment
07-10 08:02	20m	-18 / -	KF0YOB	- / -	2	Partial capture
07-10 08:02	20m	-19 / -9	M0PBG	-16 / -15	5	Partial capture
07-08 17:48	20m	- / -	DJ1TU	-1 / -	10	Partial capture
07-08 17:47	20m	- / -7	ON7AN	-16 / -	4	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
060030  +3  340  4X1YY SP2GCJ R-03
060045  -8  489  SP2GCJ 4X1YY RR73
060100  +4  340  4X1YY SP2GCJ 73
060115  -9  489  CQ 4X1YY KM71
060200  -9  489  4X1YY YT1DDL KN04 (x3)
060330  -1  489  4X1YY IW4AOT -05
060400 -12 1846  4X1YY RA3DAD KO95
060400  +0  489  4X1YY IW4AOT -05
060430 -12 1846  4X1YY RA3DAD KO95
060430  -3  489  4X1YY IW4AOT -05
060530  +3  489  4X1YY SP7NC JO91
080300 -12  493  CQ 4X1YY KM71
080345 -10 1939  4X1YY EI9IB IO63

10m

UTC    dB Audio  Message
104600 -11  689  4X1YY YG2AMY -21
193330  -6  658  4X1YY DK7UY JO44 (x2)
162330 -11 1295  4X1YY HB9IJL JN37 (x2)
162900  -3 1014  4X1YY M0BEW -11 (x2)
172045  -5  780  4X1YY DL8LAQ JO43
172945  -2  599  4X1YY M0BEW -01 (x2)
173915 -22 1612  4X1YY RW6HP LN14 (x2)
174230  -4 2337  4X1YY SV2AEL KN10 (x2)
191730 -13 2509  4X1YY DN9OPA JN38

40m

UTC    dB Audio  Message
195745  -4  875  DC9JVN 4X1YY -11
195800  -7 1581  4X1YY DK5NC JO52
195800  -4  876  4X1YY DC9JVN R-06
195815  -8  875  DC9JVN 4X1YY -11
195830  +8  875  4X1YY DC9JVN RR73
195830 -10 1581  4X1YY DK5NC JO52
195845  -9  875  DC9JVN 4X1YY 73
195900  -4 1582  4X1YY DK5NC JO52
200930 -12  882  4X1YY EA5QS -05 (x2)
201015 -11  876  EA5QS 4X1YY R-13
201030 -16  882  4X1YY EA5QS RR73
201045 -11  876  EA5QS 4X1YY 73
201130  -4  874  4X1YY SM3ULU JP81 (x2)

Decoder S/N history by band

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