UB4CJV — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Locator transmitted in a decoded message: LO31

Receiver-side FT8 activity involving UB4CJV, decoded by SO8OO in southeastern Poland. 116 related FT8 messages, 8 CQ messages, observed on 40m, 20m, across 10 UTC dates. Heard between 2026-06-01 and 2026-08-16.

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

116

Related messages

CQ messages

UTC dates heard

-12 dB

Mean decoder S/N

Bands

40m 20m

First seen: 2026-06-01
Last seen: 2026-08-16 20:10 UTC

Frequent QSO partners observed at SO8OO

Stations UB4CJV worked most often, as logged from our receiver:

CR5VP · Portugal ×2 ER1CW · Moldova UB6OCP · European Russia DH2RL · Fed. Rep. of Germany YO9HP · Romania F5RRS · France UN8DSW · Kazakhstan MI0JZZ · Northern Ireland PE1NAO · Netherlands R9FE · European Russia DL7ARV · Fed. Rep. of Germany YM7KK · Asiatic Turkey

Activity Heatmap

Locator transmitted by UB4CJV

Approximate centre of LO31, decoded 2026-08-15 19:51 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	UB4CJV S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-16 22:02	40m	-17 / -	YO2CIP	-8 / -20	2	Partial capture
08-16 21:58	40m	- / -3	PE1NAO	-24 / -	2	✓ Closing fragment
08-16 21:54	40m	-16 / -	EG5DX	- / -21	2	Partial capture
08-16 21:40	40m	- / -4	UA2KU	0 / -	2	✓ Closing fragment
08-16 21:20	40m	- / +5	DL7ARV	-2 / -	4	✓ Closing fragment
08-15 19:43	20m	-9 / -	CS8ABF	- / -	3	Partial capture
08-15 19:39	20m	-6 / -	CS8ABF	- / -23	2	Partial capture
08-15 19:29	20m	-9 / -	RL2F	- / -	2	✓ Closing fragment
08-15 19:27	20m	- / -	F4BJN	-8 / -	2	Partial capture
08-15 19:19	20m	-11 / -11	CR5VP	-13 / -	5	✓ Closing observed
08-15 19:16	20m	-13 / -8	LA8ENA	-4 / -	4	✓ Closing observed
08-15 19:14	20m	-6 / -	9J2FI	- / -	3	Partial capture
08-15 17:10	20m	- / -10	S52BT	+7 / -	5	✓ Closing fragment
08-14 19:43	20m	-2 / -	BA5AN	- / -22	8	Partial capture
08-14 19:41	20m	-6 / -	JF2HPA	- / -5	3	✓ Closing fragment
08-14 19:40	20m	-6 / -	R2FBW	- / -4	2	Partial capture
08-14 19:38	20m	-6 / -	DH2RL	- / -22	2	✓ Closing fragment
08-14 19:35	20m	-7 / -14	MI0JZZ	-9 / -2	4	✓ Full exchange observed
08-14 19:29	20m	-5 / -	SQ9CXH	- / -6	7	Partial capture
08-14 19:24	20m	-6 / -	PT7AZ	- / -16	6	Partial capture
08-14 19:22	20m	-5 / -	BU2FW	- / -21	5	✓ Closing fragment
08-14 19:18	20m	-1 / -	DL1BBO	- / -5	2	Partial capture
08-14 19:17	20m	-2 / -	BG7BMG	- / -	2	✓ Closing fragment
08-14 19:15	20m	-7 / -	G8IXM	- / -23	3	✓ Closing fragment
08-14 19:13	20m	-6 / -	BH4ECL	- / -14	2	✓ Closing fragment
08-14 19:10	20m	-6 / -	XU7O	- / -13	5	✓ Closing fragment
08-14 19:05	20m	-6 / -	<...>	- / -	6	Partial capture
08-14 19:00	20m	-6 / -	3A2MW	- / -	4	Partial capture
08-14 18:57	20m	-12 / -	A41ZZ	- / -6	3	✓ Closing fragment
08-11 20:56	40m	-11 / -	R4NBV	- / -12	4	Partial capture
08-11 20:40	40m	-16 / -	DL7ACA	-12 / -20	3	Partial capture
08-11 20:35	40m	-17 / -	OZ5AGJ	-20 / -	3	✓ Closing observed
08-11 20:35	40m	-13 / 0	RM5F	-13 / -	7	✓ Full exchange observed
08-11 20:30	20m	-14 / -	OE7LVI	- / -11	2	Partial capture
08-11 20:29	20m	-19 / -1	SP6AXW	-8 / -	4	✓ Closing observed
07-28 20:34	40m	- / -15	UB6OCP	-17 / -	2	✓ Closing fragment
07-08 21:04	40m	-14 / -	EI5HV	- / -	2	Partial capture
07-08 21:03	40m	-12 / -	MM0JTV	- / -20	2	✓ Closing fragment
07-08 21:00	40m	-16 / -	YM7KK	- / -12	2	✓ Closing fragment
07-08 20:55	40m	-20 / -	CT7AXN	- / -20	2	Partial capture
07-08 20:43	40m	- / -	9A4ZM	-10 / -	2	Partial capture
07-08 20:43	40m	- / -9	F5RRS	-14 / -	6	✓ Closing fragment
07-08 20:42	40m	-20 / -5	YL3CW	-16 / -	3	✓ Closing observed
07-08 19:26	40m	-20 / -	R2FBW	- / -	2	Partial capture
07-08 19:24	40m	-12 / -	R9FE	-4 / +1	3	✓ Closing observed
07-08 19:23	40m	-14 / -	YO9HP	-1 / -6	3	✓ Closing observed
07-08 19:20	40m	-18 / -	9A4ZM	-11 / -12	5	Partial capture
07-08 19:17	40m	-18 / -	EU3LA	- / -24	4	✓ Closing fragment
07-06 20:16	40m	-23 / -	PE1PEO	-14 / -20	2	✓ Closing observed
07-06 20:09	40m	-21 / -	HA3GX	-23 / -19	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
212100  -3  855  UB4CJV DL7ARV R+05 (x2)
213930  -6 2596  UB4CJV PB1PCH RR73
214000  +1 1768  UB4CJV UA2KU -04 (x2)
214530 -13 1009  UB4CJV R5BM R+09
215415 -16  855  EG5DX UB4CJV R-21 (x2)
215645 -23 1328  UB4CJV M0OVG -03
215815 -24 1621  UB4CJV PE1NAO -03 (x2)
220200 -17  855  YO2CIP UB4CJV R-20
220215  -8  489  UB4CJV YO2CIP RRR
221015 -15 1412  UB4CJV F1HFP RR73
221200 -16  856  RX3ASQ UB4CJV R-02

20m

UTC    dB Audio  Message
192715  -7  894  UB4CJV F4BJN JN25 (x2)
192900  -8  893  RL2F UB4CJV LO31 (x2)
193345  -9 1115  UB4CJV CS8ABF -19
193630  -2  893  CS8ABF UB4CJV R-23
193800  -4  893  9J2FI UB4CJV LO31
193930  -7  893  CS8ABF UB4CJV R-23 (x6)
195115 -10 2711  UB4CJV EA3BIC JN11
195115 -11  893  CS8ABF UB4CJV LO31

Decoder S/N history by band

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