UA4HJ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Locator transmitted in a decoded message: LO43

Receiver-side FT8 activity involving UA4HJ, decoded by SO8OO in southeastern Poland. 1,133 related FT8 messages, 621 CQ messages, observed on 160m, 80m, 40m, 20m, 10m, across 75 UTC dates. Heard between 2026-05-25 and 2026-08-23.

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

1,133

Related messages

621

CQ messages

UTC dates heard

-5 dB

Mean decoder S/N

Bands

80m 20m 40m 10m 160m

First seen: 2026-05-25
Last seen: 2026-08-23 03:35 UTC

Frequent QSO partners observed at SO8OO

Stations UA4HJ worked most often, as logged from our receiver:

UE6DR · European Russia ×3 RG6OR · European Russia ×3 RC9WC · Asiatic Russia ×3 RT6Z · European Russia ×2 R6OIZ · European Russia ×2 R6OQ · European Russia ×2 RA3LJ · European Russia ×2 RC6OT · European Russia ×2 F1ODM · France ×2 R95WTA · European Russia ×2 R6OF · European Russia ×2 RC6OD · European Russia ×2

Activity Heatmap

Locator transmitted by UA4HJ

Approximate centre of LO43, decoded 2026-08-23 05:34 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	UA4HJ S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-23 05:37	20m	+5 / -	K4A	- / -13	2	Partial capture
08-23 05:32	20m	+9 / -	F4LZZ	- / -14	2	✓ Closing fragment
08-23 05:32	20m	+8 / -9	F1ODM	-7 / -5	5	✓ Full exchange observed
08-23 05:30	20m	+15 / -10	F5NNN	0 / -	4	✓ Closing observed
08-23 05:28	20m	+12 / -	F4LNM	0 / -1	2	Partial capture
08-23 05:26	20m	+14 / -9	R6AAU	-10 / -	4	✓ Closing observed
08-22 18:12	80m	- / +2	R1530IG	+2 / -	2	Partial capture
08-22 18:11	80m	+4 / -	<...>	- / -2	4	Partial capture
08-22 18:02	40m	+3 / -7	RC6OZ	-6 / -	3	✓ Closing observed
08-21 19:22	40m	-3 / -	BG5JGG	- / -18	3	Partial capture
08-21 19:17	40m	+1 / -	R3PLN/P	- / -6	4	Partial capture
08-21 19:15	80m	+1 / -	DL1DXX	-6 / -6	2	✓ Closing observed
08-21 18:43	80m	-6 / -1	UF4S/P	-10 / -8	5	✓ Full exchange observed
08-20 15:11	20m	-4 / -	R9FDE/P	- / -13	4	Partial capture
08-20 15:06	20m	+4 / -	RO6OT	- / -6	3	Partial capture
08-20 14:56	20m	- / -	G6MTI	-5 / -	7	Partial capture
08-20 14:55	20m	- / -	F4ACR	+13 / -	4	Partial capture
08-19 18:08	160m	- / -1	RX3PX	-4 / -	2	✓ Closing fragment
08-17 20:54	160m	- / -12	SP1MGM	+3 / -	3	✓ Closing fragment
08-17 20:34	160m	-18 / -	R3DFE/M	- / -15	2	Partial capture
08-17 18:13	80m	0 / -	JA8GWA	- / -14	2	✓ Closing fragment
08-17 18:12	80m	- / -	DO1ARD	-3 / -	2	Partial capture
08-17 18:10	80m	-2 / -13	HG3FMZ	+7 / -11	5	✓ Full exchange observed
08-17 13:03	20m	- / -13	R6OH	-12 / -	2	✓ Closing fragment
08-16 19:59	160m	-14 / -15	RU6C	+16 / -8	5	✓ Full exchange observed
08-16 19:46	160m	-10 / -	R4HLG	- / -4	2	Partial capture
08-16 19:42	160m	-10 / -	UA0WF	- / -17	2	Partial capture
08-16 18:20	80m	-2 / -	RW0AE	- / -13	2	✓ Closing fragment
08-16 18:19	80m	-6 / -4	R5ACQ	-10 / -	3	✓ Closing observed
08-15 05:23	20m	- / -9	RA7E/P	-3 / -	7	Partial capture
08-14 20:42	160m	-12 / -3	UA3FH	-20 / -	3	✓ Closing observed
08-14 20:34	160m	-13 / -	<...>	- / -17	2	Partial capture
08-14 20:29	160m	-8 / -2	RK3ZB	0 / 0	4	✓ Full exchange observed
08-14 20:27	160m	-6 / -12	UA3LKM	-16 / -5	5	✓ Full exchange observed
08-14 20:26	160m	-10 / -2	PA3FR	-1 / -13	9	✓ Full exchange observed
08-14 20:24	160m	-7 / -	R3ICU	- / -19	2	Partial capture
08-14 18:35	80m	+3 / -	R1BQW/M	- / -15	3	Partial capture
08-14 18:34	80m	0 / -	<...>	- / -15	2	Partial capture
08-14 18:14	80m	+4 / -	R6DOB/7	- / -5	4	Partial capture
08-14 17:38	80m	-6 / -	R4HMI	- / -6	2	✓ Closing fragment
08-14 17:36	80m	-4 / +6	RX3AM	-13 / -5	5	✓ Full exchange observed
08-14 07:17	20m	-2 / -	R6OCU	- / -7	3	Partial capture
08-13 19:46	80m	- / -	R3PLA	-7 / -	3	Partial capture
08-12 08:13	20m	-8 / -	DK8HC	- / -13	2	Partial capture
08-10 17:51	80m	-11 / -	R4FES	-10 / +2	2	Partial capture
08-10 17:45	80m	-8 / -	R50RKZ	-7 / +7	6	✓ Full exchange observed
08-09 18:20	10m	- / -10	RA6OY	-8 / -	3	✓ Closing fragment
08-08 20:02	160m	-2 / -	R1AO	- / -9	2	✓ Closing fragment
08-08 19:45	160m	+7 / -	RA9YTI	- / -5	2	Partial capture
08-08 19:34	160m	-8 / -	RD2T	- / -3	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
053115  +9 2813  CQ UA4HJ LO43 (x3)
053230  -9 2814  UA4HJ F1ODM -09
053245 +14 2813  F4LZZ UA4HJ -14 (x2)
053345 +11 2813  CQ UA4HJ LO43                         a1 (x2)
053430  -5 2813  UA4HJ F1ODM -04
053445  +7 2813  F1ODM UA4HJ R-05
053500  -7 2813  UA4HJ F1ODM RR73
053515 +10 2812  F1ODM UA4HJ 73
053700  +9 2813  K4A UA4HJ -13 (x2)
120045  -7 2915  R1LH UA4HJ -06

160m

UTC    dB Audio  Message
201130 -14 2477  CQ UA4HJ LO43
203415 -20 2551  <R3DFE/M> UA4HJ -15 (x2)
204100 -21 1952  UA4HJ OH/SM5MRW R-10
205345 -24 1595  UA4HJ RV1CC R-10
205415  -4 2498  UA4HJ SP1MGM JO73 (x3)
180830  -6 1281  UA4HJ RX3PX -01 (x2)
193600  -5 2776  CQ UA4HJ LO43 (x3)
201530 -24 1910  UA0SCF UA4HJ -20
183830 -12 2614  CQ UA4HJ LO43                         a1

80m

UTC    dB Audio  Message
191230  +1 2799  CQ UA4HJ LO43 (x2)
191530  +1 2799  DL1DXX UA4HJ R-06
191615  -6 1466  UA4HJ DL1DXX RR73
181015  +9 2817  CQ UA4HJ LO43 (x2)
181115  +2 2817  <...> UA4HJ -02
181200  +4 1555  UA4HJ R1530IG R+02 (x2)
181230  +9 2817  <...> UA4HJ -12 (x3)
181430  +1 2403  CQ UA4HJ LO43 (x2)
181545  -3 2403  RW9H/M UA4HJ +08

40m

UTC    dB Audio  Message
195445 -16 3090  CQ UA4HJ LO43
195800 -17 2380  UA4HJ SV1DZB KM18
195915 -23 1553  R6FFE UA4HJ RR73
191730  -2 2830  R3PLN/P UA4HJ -06 (x5)
192200  -1 2760  BG5JGG UA4HJ -18 (x3)
180200  -8  901  UA4HJ RC6OZ R-07
180215  +3 2850  RC6OZ UA4HJ RR73
180230  -5  901  UA4HJ RC6OZ 73
180245  +0 2850  CQ UA4HJ LO43                         a1

10m

UTC    dB Audio  Message
072845  +5 1147  UA4HJ LX1NO JN39 (x9)
125730  -5 2825  CQ UA4HJ LO43
060300 -23 1605  UA4HJ R6OIZ 73
182000  -9  317  UA4HJ RA6OY KN88 (x3)
152200 -11  713  UA4HJ F4GUK JN18

Decoder S/N history by band

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