RA3BY — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Locator transmitted in a decoded message: KO75

Receiver-side FT8 activity involving RA3BY, decoded by SO8OO in southeastern Poland. 507 related FT8 messages, 49 CQ messages, observed on 160m, 80m, 40m, 20m, 10m, across 57 UTC dates. Heard between 2026-05-25 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

507

Related messages

CQ messages

UTC dates heard

-6 dB

Mean decoder S/N

Bands

80m 20m 40m 10m 160m

First seen: 2026-05-25
Last seen: 2026-08-22 17:58 UTC

Frequent QSO partners observed at SO8OO

Stations RA3BY worked most often, as logged from our receiver:

RU3DBT · European Russia ×3 R9WFT · Asiatic Russia ×2 RD3MF · European Russia ×2 UA3RBM · European Russia ×2 R4SCQ · European Russia ×2 R2EA/P · European Russia ×2 UA3VVA · European Russia ×2 R1BNG/P · European Russia ×2 RL7Z · European Russia ×2 RA1TR · European Russia ×2 RA3ZOM · European Russia ×2 RU3T/P · European Russia ×2

Activity Heatmap

Locator transmitted by RA3BY

Approximate centre of KO75, decoded 2026-08-22 19:54 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	RA3BY S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-22 19:32	160m	- / -	SV2AEL	-8 / -	3	Partial capture
08-22 18:05	80m	-3 / -6	UF4S/P	+1 / -10	15	✓ Full exchange observed
08-22 18:01	80m	-3 / -	R1530IG	- / -6	6	Partial capture
08-20 19:27	40m	+2 / -	R3TJN	- / -20	2	✓ Closing fragment
08-20 19:21	40m	+5 / -	RG6ZF	- / -8	4	✓ Closing fragment
08-20 19:18	40m	+5 / -5	R2EA/P	-6 / -	4	✓ Closing observed
08-20 18:59	40m	- / -5	RA6OD	0 / -	2	✓ Closing fragment
08-20 18:54	40m	+6 / +6	RV6AVU	+1 / -6	7	✓ Full exchange observed
08-20 15:01	20m	-4 / -	R5AJ	- / -12	4	✓ Closing fragment
08-18 18:58	80m	-4 / -	R2AX	- / -4	3	✓ Closing fragment
08-18 18:51	80m	0 / -	RW3LS	- / -9	4	✓ Closing fragment
08-18 18:46	80m	-1 / 0	R4HMI	-12 / -14	6	✓ Full exchange observed
08-18 18:42	80m	-1 / -	R4HHN	- / -	2	✓ Closing fragment
08-18 18:40	80m	-6 / +1	R1WBW	+10 / -8	5	✓ Full exchange observed
08-17 20:12	160m	-11 / -8	RT6Z	+9 / -	7	Partial capture
08-17 19:38	160m	-3 / -8	PA3FR	0 / -8	5	✓ Full exchange observed
08-17 19:32	160m	-3 / -	R1BZ	- / -20	3	✓ Closing fragment
08-14 19:50	160m	-10 / -	R50RKZ	- / +1	7	✓ Closing fragment
08-14 19:49	160m	-7 / +2	R0QBB/3	-6 / -1	3	Partial capture
08-14 19:48	160m	-2 / -	<...>	- / -	2	Partial capture
08-14 19:27	160m	-4 / -16	RA6LTD	-16 / -18	11	✓ Full exchange observed
08-14 19:23	160m	-6 / -	UA1TAN	- / -	3	Partial capture
08-14 19:17	160m	-2 / -	RO2E/M	- / -12	5	Partial capture
08-14 19:12	160m	+1 / -	RA6LTD	- / -	2	Partial capture
08-14 19:05	160m	+12 / -	R4NBV	- / -	2	Partial capture
08-14 18:53	160m	-8 / -	<...>	- / -11	3	Partial capture
08-14 18:41	80m	-9 / -17	YO4LUP	-1 / -17	8	✓ Full exchange observed
08-14 18:40	80m	-8 / -	UA3IBK	- / -1	2	✓ Closing fragment
08-14 18:29	80m	-11 / -13	R1ZH	-8 / -	5	✓ Closing observed
08-14 18:18	80m	-13 / -	R6DOB/7	- / -	7	Partial capture
08-14 18:06	160m	-14 / -	R2UZ/P	- / 0	7	✓ Closing fragment
08-13 19:28	160m	+6 / -	UA9JDH	- / -13	4	✓ Closing fragment
08-13 19:25	160m	0 / +2	LA6YEA	+8 / +4	5	✓ Full exchange observed
08-13 19:20	160m	+7 / -15	R7KQ	0 / -9	6	✓ Full exchange observed
08-13 19:08	160m	-2 / -	JA9FPI	- / -	2	Partial capture
08-13 19:04	160m	-2 / -	R1BQC	- / -	2	Partial capture
08-13 18:52	160m	+1 / -	R2GFD	- / -14	3	✓ Closing fragment
08-13 18:51	160m	-4 / 0	R1MA	-22 / -1	5	✓ Full exchange observed
08-13 18:43	160m	-8 / -	R1BQC	- / -	5	Partial capture
08-13 18:39	160m	0 / -	R1BQC	- / -	2	Partial capture
08-13 18:36	160m	0 / -	RA1AGA	- / -1	3	✓ Closing fragment
08-13 18:30	160m	-13 / -	RU3DBT	-20 / -2	6	✓ Closing observed
08-13 18:29	160m	-20 / -	RC1TF	-10 / -7	3	✓ Closing observed
08-12 14:12	20m	-14 / -	R7OV	- / -	3	Partial capture
08-12 14:01	20m	-15 / -	R7OV	- / -	5	Partial capture
08-12 13:58	20m	-16 / -	RN7B	- / -5	3	Partial capture
08-12 13:56	20m	-15 / -	R7OV	- / -	2	Partial capture
08-12 13:54	20m	-12 / -	RN7B	- / -	2	Partial capture
08-11 10:26	10m	- / -12	UA3VVA	-18 / -	2	✓ Closing fragment
08-11 06:59	20m	-6 / -	R8FH	- / -13	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
180645  +2 1635  UF4S/P RA3BY KO75 (x9)
181300  +3 1058  RA3BY UF4S/P -06
181315  -8 1701  UF4S/P RA3BY R-10
181330  -1 1058  RA3BY UF4S/P RR73
181345  -8 1701  UF4S/P RA3BY 73
195445  -7  866  RV6LVO RA3BY KO75
195800 -24 1296  RA3BY RV6LVO -04

160m

UTC    dB Audio  Message
193845  -3 1242  PA3FR RA3BY R-08
193900  +1 1554  RA3BY PA3FR RR73
193915  -2 1242  PA3FR RA3BY 73
201200 -11 1158  RT6Z RA3BY KO75 (x2)
201245 +13 2887  RA3BY RT6Z -08
201300 -10 1158  RT6Z RA3BY KO75
201315 +14 2887  RA3BY RT6Z -07
201330 -14 1158  RT6Z RA3BY KO75
201345  +1 2055  RA3BY RT6Z -04
193145  -5 1293  <...> RA3BY KO75
193200 -11  317  RA3BY SV2AEL KN10
193215  -6 1293  <R5BM/M> RA3BY R-10
193230 -12  316  RA3BY SV2AEL KN10 (x2)

40m

UTC    dB Audio  Message
185800  -1 1343  RA3BY RV6AVU 73
185815  +8 2338  RV6AVU RA3BY 73
185930  -1 2339  RA3BY RA6OD R-05 (x2)
191800  +4 1984  R2EA/P RA3BY KO75
191815  -5  539  RA3BY R2EA/P -05 (x2)
191900  +6 1983  R2EA/P RA3BY 73
192115  +6 1983  RG6ZF RA3BY KO75 (x4)
192430  +5 1983  R3TJN RA3BY KO75 (x3)

20m

UTC    dB Audio  Message
140130 -16 1136  R7OV RA3BY KO75 (x5)
140745 -12 1135  UB1ATR RA3BY KO75 (x2)
141230 -16 1135  R7OV RA3BY KO75 (x3)
150100  -9 3057  R5AJ RA3BY KO75 (x4)
150415  -2 3055  <...> RA3BY KO75

10m

UTC    dB Audio  Message
132830 -10 1160  RT6O RA3BY R-03 (x2)
141815 -13 1175  R6DZR RA3BY R-14 (x4)
091245  +2 2914  <...> RA3BY KO75 (x2)
094200 -13 1396  RA3BY E70SZ JN84 (x3)
103300 -24 1586  RA3BY DH3KR JO30
091900 -10 2288  RA3BY R50RKZ +08
102600 -17 1458  RA3BY UA3VVA -12 (x2)

Decoder S/N history by band

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