UB3DYV — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Locator transmitted in a decoded message: KO85

Receiver-side FT8 activity involving UB3DYV, decoded by SO8OO in southeastern Poland. 90 related FT8 messages, 16 CQ messages, observed on 40m, 20m, 10m, across 8 UTC dates. Heard between 2026-05-18 and 2026-08-12.

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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee

Overview

Related messages

CQ messages

UTC dates heard

-11 dB

Mean decoder S/N

Bands

40m 20m 10m

First seen: 2026-05-18
Last seen: 2026-08-12 16:43 UTC

Frequent QSO partners observed at SO8OO

Stations UB3DYV worked most often, as logged from our receiver:

SP9CTW · Poland ×2 DN9ZZ · Fed. Rep. of Germany UA4FKT · European Russia UA6NT · European Russia DK7ZT · Fed. Rep. of Germany UA4AGU · European Russia RN7A · European Russia RN6MA · European Russia EA8UP · Canary Islands 7Z1IS · Saudi Arabia RV6HAF · European Russia R7KKO · European Russia

Activity Heatmap

Locator transmitted by UB3DYV

Approximate centre of KO85, decoded 2026-08-09 16:58 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	UB3DYV S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-12 18:40	10m	- / -2	DN9ZZ	-14 / -	8	✓ Closing fragment
08-09 19:12	10m	- / -6	LZ1SAD	-6 / -	2	✓ Closing fragment
08-09 16:57	10m	-24 / -	ER5DX	- / -	2	Partial capture
08-03 19:41	40m	- / -22	UA4FKT	-11 / -	5	✓ Closing fragment
06-27 20:11	10m	- / -	DK7UY	-10 / -	2	Partial capture
06-27 20:07	10m	-16 / -	DL3NGN	- / -17	3	✓ Closing fragment
06-27 19:52	10m	- / -12	UA3ZUX	-14 / -	3	Partial capture
06-27 19:49	10m	-18 / -7	EA8UP	-18 / -5	3	✓ Full exchange observed
06-27 14:43	10m	- / +6	R2DIH	-23 / -	2	Partial capture
06-26 19:50	10m	- / -19	CE2SV	-5 / -	5	✓ Closing fragment
06-26 19:36	10m	- / -10	DO1OAS	-16 / -	2	Partial capture
06-26 18:48	10m	- / -1	UA4AGU	-19 / -	2	✓ Closing fragment
06-26 18:38	10m	-24 / -	YT3PL	- / -19	2	Partial capture
06-26 18:37	10m	- / -19	DO9BAU	-14 / -	3	Partial capture
06-26 18:37	10m	-23 / -	R7KKO	- / -10	2	✓ Closing fragment
06-26 18:32	10m	-22 / -	RV6HAF	- / +2	2	✓ Closing fragment
06-26 18:32	10m	- / -	RV3YR	-17 / -	2	Partial capture
06-26 18:17	10m	-22 / -6	PR2CC	-6 / -13	8	✓ Full exchange observed
06-26 18:05	10m	-16 / -	RM5F	-12 / -	2	✓ Closing observed
06-26 18:02	10m	-17 / -	DH7ULX	-14 / -	3	✓ Closing observed
06-06 20:57	20m	-9 / -	F4JRC	+9 / -2	3	✓ Closing observed
06-06 20:53	20m	-11 / -	7Z1IS	- / -1	3	✓ Closing fragment
06-06 20:39	20m	-18 / -14	EA4HGI	-16 / -17	7	✓ Full exchange observed
06-06 20:38	20m	-20 / -	DK7ZT	- / -15	2	✓ Closing fragment
06-06 20:28	20m	- / +9	SV9QWC	+2 / -	2	Partial capture
05-31 16:11	10m	-8 / -	DL3KZA	- / -	8	Partial capture
05-31 15:59	10m	-14 / -	R1AI	- / -	2	Partial capture
05-31 15:57	10m	-19 / -	OJ0MN	- / -	3	Partial capture
05-31 15:53	10m	-21 / -	OH9FTW	- / -	4	Partial capture
05-31 15:51	10m	-20 / -	D2UY	- / -21	3	Partial capture
05-31 15:48	10m	-8 / -	RN7A	- / -19	2	✓ Closing fragment
05-31 15:42	10m	-9 / -	HG8LXL	- / -15	5	✓ Closing fragment
05-31 15:41	10m	- / -	R6DV	-8 / -	7	Partial capture
05-31 15:37	10m	-22 / -	RW6AU	-11 / -	3	✓ Closing observed
05-31 15:35	10m	-24 / -	RU6CH	-23 / -14	3	✓ Closing observed
05-31 15:31	10m	-18 / +5	UA6NT	+10 / -	3	✓ Closing observed
05-31 08:48	10m	-23 / -	YM1KSR	- / -	2	Partial capture
05-31 08:31	10m	-15 / -	SP9CTW	- / -13	3	✓ Closing fragment
05-31 08:28	10m	-15 / -	OK1DXR	- / -	4	Partial capture
05-31 08:26	10m	-16 / -	SP9CTW	- / -	2	✓ Closing fragment
05-31 08:23	10m	-18 / -	DN9PBN	- / -	2	Partial capture
05-31 08:22	10m	-18 / -	YU5DR	- / -18	2	✓ Closing fragment
05-31 08:21	10m	-17 / -	LZ2FDI	- / -	2	Partial capture
05-31 08:17	10m	-16 / -	DN9PBN	- / -	4	Partial capture
05-31 08:14	10m	-14 / -	DL5DQZ	- / -18	2	Partial capture
05-31 08:03	10m	-8 / -	RQ7R	- / +2	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
165730 -23 1835  ER5DX UB3DYV KO85 (x3)
171545 -24 1838  RN6MA UB3DYV 73
191215  -9  962  UB3DYV LZ1SAD -06 (x2)
183545  -1 2687  UB3DYV F1PBZ -14
184015 -15 1334  UB3DYV DN9ZZ -02 (x8)

40m

UTC    dB Audio  Message
194015 -21 1811  UB3DYV R6FX LN14
194115 -12 1812  UB3DYV UA4FKT LO23 (x5)

20m

UTC    dB Audio  Message
204030 -20 1906  EA4HGI UB3DYV -17
204045 -15 1669  UB3DYV EA4HGI R-14
204100 -18 1904  EA4HGI UB3DYV RR73
204115 -16 1669  UB3DYV EA4HGI R-14
204130 -12 1901  CQ UB3DYV KO85                        a1
204300 -17 1900  SP6FME UB3DYV -15
204500 -14 1897  A61DD UB3DYV KO85
204745  -9 1108  UB3DYV A61DD -18
205300 -12 1863  7Z1IS UB3DYV R-01 (x3)
205700 -10 1915  F4JRC UB3DYV R-02
205715  +9 2536  UB3DYV F4JRC RR73
205730  -8 1914  F4JRC UB3DYV 73
205930 -10 1909  9A5AZK UB3DYV R-03

Decoder S/N history by band

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