RU4SO — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia

Receiver-side FT8 activity involving RU4SO, decoded by SO8OO in southeastern Poland. 192 related FT8 messages, 27 CQ messages, observed on 160m, 80m, 40m, 20m, 10m, across 12 UTC dates. Heard between 2026-07-04 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.

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

Overview

192

Related messages

CQ messages

UTC dates heard

-7 dB

Mean decoder S/N

Bands

80m 20m 40m 10m 160m

First seen: 2026-07-04
Last seen: 2026-08-22 08:49 UTC

Frequent QSO partners observed at SO8OO

Stations RU4SO worked most often, as logged from our receiver:

R50RKZ · European Russia ×2 TN8GD · Republic of the Congo ×2 JA0LFV · Japan ×2 RA6AR · European Russia ×2 PT7PT · Brazil JR2XOM · Japan UA0TP · Asiatic Russia LB2YJ · Norway UA3TJC · European Russia PW8BR · Brazil OZ1WWA · Denmark R7HC · European Russia

Activity Heatmap

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	RU4SO S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-22 10:48	20m	+8 / -13	R6FFB	+13 / -10	5	✓ Full exchange observed
08-22 10:47	20m	+9 / -	R7OV	- / -13	3	Partial capture
08-22 10:44	20m	+6 / -13	RO6OP	-4 / -3	5	✓ Full exchange observed
08-22 08:36	20m	+8 / -	<...>	- / -7	2	Partial capture
08-22 05:54	20m	-2 / -4	K4A	-9 / -14	8	✓ Full exchange observed
08-22 05:36	20m	+14 / -	XQ1KK	- / -12	2	Partial capture
08-22 05:31	20m	+6 / -	OH/SM5MRW	- / -20	2	Partial capture
08-22 05:27	20m	+11 / -	VK3JMA	- / -17	5	Partial capture
08-22 05:26	20m	- / -17	UA4FEN	-7 / -	2	Partial capture
08-22 05:24	20m	+5 / -	VK2VAR	- / -14	2	Partial capture
08-22 05:22	20m	+9 / -	UN7PTN	-20 / -7	3	✓ Closing observed
08-22 05:21	20m	+10 / -	KP4PUA	- / -16	2	Partial capture
08-22 05:20	20m	+6 / -16	AA4DD	-10 / -21	4	✓ Full exchange observed
08-21 16:30	20m	+18 / -	<...>	- / -12	4	Partial capture
08-14 20:07	160m	-10 / -	RD9FC	- / -1	3	✓ Closing fragment
08-14 20:06	160m	-17 / -	R6TY	- / -4	2	✓ Closing fragment
08-14 20:04	160m	-11 / -	R6DOB/7	- / -1	2	Partial capture
08-14 20:03	160m	-10 / -	R4ZZ	- / -11	2	✓ Closing fragment
08-14 20:02	160m	-10 / -	RA3LCI	- / -6	2	✓ Closing fragment
08-14 20:01	160m	-12 / -7	R7NO	-4 / -1	5	✓ Full exchange observed
08-14 20:00	160m	-11 / -3	UA1AEL	-2 / 0	5	✓ Full exchange observed
08-14 19:58	160m	-10 / -9	UA3ZSI	-6 / -1	7	✓ Full exchange observed
08-14 19:57	160m	-12 / +3	R4NBV	-8 / -2	4	✓ Full exchange observed
08-14 19:57	160m	-6 / +4	RX3T	-12 / +1	6	✓ Full exchange observed
08-14 19:55	160m	- / -	R50RKZ	+12 / -	2	✓ Closing fragment
08-14 19:52	80m	+2 / -	JH1BBT	-14 / -	2	✓ Closing observed
08-14 19:50	80m	- / -14	E77EA	+16 / -	3	✓ Closing fragment
08-14 19:45	80m	- / -11	UR5ZGY	+21 / -	2	✓ Closing fragment
08-14 19:43	80m	- / -	RC3D	+10 / -	2	✓ Closing fragment
08-14 19:42	80m	- / -10	JE6WOQ	-16 / -	2	✓ Closing fragment
08-14 19:36	80m	-9 / -	RA0SCA	-14 / -3	2	Partial capture
08-14 19:34	80m	- / -9	JA5MHD	-9 / -	2	✓ Closing fragment
08-14 19:25	160m	-17 / -2	R2SN	-12 / -	3	✓ Closing observed
08-14 19:22	160m	- / -1	RM5F	-14 / -	2	Partial capture
08-14 19:18	160m	-19 / -7	UA6HJT	-6 / -	4	✓ Closing observed
08-14 19:17	160m	- / -15	RA6YDX	-11 / -	3	✓ Closing fragment
08-14 19:13	80m	- / -1	R50RKZ	+5 / -	2	✓ Closing fragment
08-14 19:06	80m	-14 / -	RD0L	- / -15	2	Partial capture
08-14 18:59	80m	0 / -	R9FF	- / -8	2	✓ Closing fragment
08-14 18:57	80m	- / -6	UA3TJC	-15 / -	2	✓ Closing fragment
08-14 18:41	20m	-12 / -	8B81KB	- / -9	2	Partial capture
08-14 18:33	20m	-11 / -	<...>	- / -5	3	Partial capture
08-14 18:25	20m	-10 / -	<...>	- / -13	6	Partial capture
08-14 18:23	20m	-8 / -	BA6IM	- / -9	4	Partial capture
08-14 18:19	20m	0 / -	DU7/NW5H	- / -8	2	Partial capture
08-14 18:17	20m	+3 / -	BG7BVI	- / 0	4	✓ Closing fragment
08-01 10:51	20m	-23 / -	PD9JPV	- / -6	2	✓ Closing fragment
08-01 10:50	20m	- / -	IK4LZH	+7 / -	3	Partial capture
08-01 10:46	20m	- / -12	R7HC	-14 / -	2	✓ Closing fragment
08-01 10:41	20m	- / -13	F4BJN	-14 / -	5	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
104145  -9 2354  UA0TP RU4SO RR73
104415  +4 2355  RO6OP RU4SO -03 (x2)
104500  -7 1461  RU4SO RO6OP R-13
104515  +7 2355  RO6OP RU4SO RR73
104530  -2 1461  RU4SO RO6OP 73
104700  +5 2355  R7OV RU4SO -13 (x3)
104815 +13 2402  RU4SO R6FFB LN14
104830  +8 2355  R6FFB RU4SO -10
104845  +9 2402  RU4SO R6FFB R-13
104900  +8 2354  R6FFB RU4SO RR73
104915 +16 2402  RU4SO R6FFB 73
105030  +7 2355  UB0SMX/P RU4SO RR73

160m

UTC    dB Audio  Message
200130  -4 1496  RU4SO R7NO -07
200145 -14 1077  R7NO RU4SO R-01
200200  -3 1496  RU4SO R7NO RR73
200215 -11 1076  R7NO RU4SO 73
200245 -11 1077  RA3LCI RU4SO R-06 (x2)
200345 -12 1076  R4ZZ RU4SO -11 (x2)
200445 -12 1077  <R6DOB/7> RU4SO -01 (x2)
200615 -18 1077  R6TY RU4SO R-04 (x2)
200715  -9 1077  RD9FC RU4SO -01 (x3)

80m

UTC    dB Audio  Message
193915  +3 1038  R6OQ RU4SO -17
194030  -4  502  RU4SO R6ZEJ KN98
194215 -13 2624  RU4SO JE6WOQ R-10 (x2)
194315 +10 2496  RU4SO RC3D RR73 (x2)
194545 +21  384  RU4SO UR5ZGY -11 (x2)
194645  -3  793  RU4SO DL6UM JO60
194915  -4  966  RU4SO UA3SCU RR73
195045 +20 1651  RU4SO E77EA JN84 (x3)
195245  +2 1063  JH1BBT RU4SO RR73
195300 -14 2803  RU4SO JH1BBT 73

10m

UTC    dB Audio  Message
104100 -16 2202  RU4SO R6FMK LN05 (x2)
131715 -13 1031  RU4SO G0UOI JO00 (x2)
173630  -9  888  RU4SO DK7UY JO44 (x2)
173815  +5  381  RU4SO RN3DN R-07 (x2)
062730 -24 1631  RU4SO UA3FO R-08
070845  -2 2030  RU4SO RV3ZK KO90 (x2)
072045 -16 1752  RU4SO R6OQ 73
072715 -16 1075  RU4SO UA3OO KO90
125345  -3 1330  RU4SO <...> R+00
103630 -19 2041  RU4SO UB6OCP 73

40m

UTC    dB Audio  Message
224030 -22 1702  VK6BAD RU4SO -13
224045 -24 1934  RU4SO RA6AR KN93
224100 -19 1703  RA6AR RU4SO -06 (x2)
224200 -17 1702  YH2AZ RU4SO -09
224630 -22 1823  DK8HC RU4SO -15
224800 -18 1822  LB2YJ RU4SO R+03
224900 -17 1822  OA4ENG RU4SO -13 (x3)
225315 -18 2006  LU1VDF RU4SO RR73
225345 -20 2007  PT7PT RU4SO -16 (x2)
225445 -19 2007  PP5GP RU4SO -17
225900 -15 2006  LU7HMP RU4SO -10

Decoder S/N history by band

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