W9YUM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Locator transmitted in a decoded message: EN52

Receiver-side FT8 activity involving W9YUM, decoded by SO8OO in southeastern Poland. 23 related FT8 messages, 1 CQ messages, observed on 20m, across 6 UTC dates. Heard between 2026-05-29 and 2026-08-22.

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

Related messages

CQ messages

UTC dates heard

-9 dB

Mean decoder S/N

Bands

20m

First seen: 2026-05-29
Last seen: 2026-08-22 21:09 UTC

Frequent QSO partners observed at SO8OO

Stations W9YUM worked most often, as logged from our receiver:

OE8DDX · Austria HA1BF · Hungary YU1LD · Serbia

Activity Heatmap

Locator transmitted by W9YUM

Approximate centre of EN52, decoded 2026-06-17 00:40 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	W9YUM S/N	Counterpart	Counterpart S/N	Msgs	Capture
07-18 23:53	20m	- / -	R2AL	-12 / -	3	Partial capture
07-18 23:52	20m	- / -19	YU1LD	-15 / -	2	✓ Closing fragment
07-18 23:36	20m	- / -9	OE9GWV	-10 / -	2	Partial capture
06-17 00:41	20m	- / -	EA1FEP	-2 / -	2	Partial capture
06-17 00:36	20m	- / -15	7Z1DR	+2 / -	2	Partial capture
06-17 00:34	20m	-4 / -	OE8DDX	- / -	2	✓ Closing fragment
06-17 00:31	20m	-4 / -19	HA1BF	-16 / -17	4	✓ Full exchange observed
06-03 00:51	20m	- / -	K4TLJ	-3 / -	2	Partial capture
06-03 00:24	20m	- / -16	SV9TLU	-6 / -	2	Partial capture
05-29 22:27	20m	- / -	HB9TIH	-17 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
003700  -1  725  W9YUM 7Z1DR -15
003745  -8  499  IK4TVP W9YUM R-10
003845  -6  498  SV5BYP W9YUM -16
004045  -6  544  CQ W9YUM EN52                         a1
004130  -4 2741  W9YUM EA1FEP IN80 (x2)
013430  -8 1221  W9YUM 9K2YM -05
233600 -11 2731  W9YUM OE9GWV -09 (x2)
235245 -14 2024  W9YUM YU1LD -19 (x2)
235345 -13 1433  W9YUM R2AL KO85 (x3)
230945 -20 2051  W9YUM KC1ZDZ R+10

Decoder S/N history by band

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