RT4A/P — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Locator transmitted in a decoded message: LN28

Receiver-side FT8 activity involving RT4A/P, decoded by SO8OO in southeastern Poland. 1,311 related FT8 messages, 360 CQ messages, observed on 160m, 80m, 40m, 20m, across 4 UTC dates. Heard between 2026-06-12 and 2026-08-15.

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

1,311

Related messages

360

CQ messages

UTC dates heard

-5 dB

Mean decoder S/N

Bands

80m 20m 40m 160m

First seen: 2026-06-12
Last seen: 2026-08-15 07:10 UTC

Frequent QSO partners observed at SO8OO

Stations RT4A/P worked most often, as logged from our receiver:

RU6K · European Russia ×3 UA6ANQ · European Russia ×3 RW2Z · European Russia ×2 R1OAI · European Russia ×2 RG7K · European Russia ×2 UB3YFP · European Russia ×2 SV6JHA · Greece ×2 RA3PN · European Russia ×2 R390TB · European Russia ×2 RA6YDX · European Russia ×2 R1BED · European Russia ×2 R3BV · European Russia ×2

Activity Heatmap

Locator transmitted by RT4A/P

Approximate centre of LN28, decoded 2026-08-15 09:10 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	RT4A/P S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-15 08:03	20m	- / -	R8FH	-2 / -	2	✓ Closing fragment
08-15 08:03	20m	-13 / -	R9CS/P	+4 / -17	3	Partial capture
08-15 08:00	20m	- / -9	IV3GHY	+3 / -	2	Partial capture
08-15 07:52	20m	-12 / -	R3BV	- / -11	3	✓ Closing fragment
08-15 07:50	20m	-16 / -	R1OAI	- / -6	2	✓ Closing fragment
08-15 07:49	20m	-15 / -	R1BED	- / -10	2	✓ Closing fragment
08-15 07:44	20m	-8 / -	R2DAW	- / -1	2	✓ Closing fragment
08-15 07:43	20m	-10 / -	R3BV	- / -13	2	Partial capture
08-15 07:41	20m	-10 / +3	F1PBZ	-3 / -9	6	✓ Full exchange observed
08-15 07:37	20m	-8 / -8	R9TS	-9 / 0	3	✓ Full exchange observed
08-15 07:36	20m	- / -	M0XAN	-5 / -	2	Partial capture
08-15 07:29	20m	- / -11	UA1ZFL	-15 / -	3	Partial capture
07-22 17:39	40m	- / -25	RN9N	-12 / -	6	Partial capture
07-22 17:34	40m	- / -11	R6OD	-6 / -	2	Partial capture
07-22 17:32	40m	- / -17	IQ4JO	-1 / -	3	✓ Closing fragment
07-22 17:18	40m	- / -12	RW6ATD	-8 / -	4	✓ Closing fragment
07-22 16:58	40m	- / -11	RW2Z	-19 / -	3	✓ Closing fragment
07-22 16:51	40m	- / -11	R3WDW	-4 / -	2	✓ Closing fragment
07-22 15:42	20m	-12 / -	R6DVG	- / +6	2	Partial capture
07-22 15:38	20m	-11 / -17	DL2RPN	-13 / +6	3	✓ Full exchange observed
07-22 15:35	20m	- / -	DL2RPN	-6 / -	2	Partial capture
07-22 15:33	20m	- / -15	UB3YFP	-16 / -	3	Partial capture
07-22 14:53	20m	- / -10	DK0BMW	-8 / -	3	✓ Closing fragment
07-22 12:15	20m	- / -	F6FTB	-12 / -	2	Partial capture
07-22 12:08	20m	- / -13	PA0ION	-22 / -	3	Partial capture
07-22 11:06	20m	- / -20	PD0HLA	-9 / -	2	✓ Closing fragment
07-22 11:04	20m	- / -13	DG5PW	-18 / -	3	Partial capture
07-22 10:47	20m	- / -17	UB3YFP	-11 / -	3	✓ Closing fragment
07-22 10:31	20m	- / -9	RA9AJ	-5 / -	5	✓ Closing fragment
07-22 10:20	20m	- / -	UA3IKI	-2 / -	5	Partial capture
06-13 05:47	20m	-12 / -	UA6ANQ	-9 / -	2	✓ Closing observed
06-13 05:46	20m	-12 / +5	R7NO	-15 / +6	6	✓ Full exchange observed
06-13 05:46	20m	-8 / -	R1BED	- / -18	2	Partial capture
06-13 05:44	20m	-5 / -	RZ6CO	- / +6	2	✓ Closing fragment
06-13 05:42	20m	- / -8	UA6ANQ	-12 / -	2	Partial capture
06-13 05:38	20m	- / -2	R3DEE	-10 / -	2	Partial capture
06-13 05:29	20m	- / -	RW3VA	-14 / -	2	✓ Closing fragment
06-13 05:27	20m	- / -10	R6AO	-12 / -	6	Partial capture
06-13 05:26	20m	-12 / -5	EA5ET	+4 / +1	7	✓ Full exchange observed
06-13 05:22	20m	- / -3	R1BL	+8 / -	5	Partial capture
06-13 05:22	20m	- / -12	R3YK	+5 / -	3	Partial capture
06-13 05:21	20m	- / -7	RN6AK	-18 / -	3	✓ Closing fragment
06-13 05:21	20m	- / -	UA6J	+8 / -	3	Partial capture
06-13 05:21	20m	- / +3	RT6C	+12 / -	5	✓ Closing fragment
06-13 05:17	20m	- / -	R1BL	0 / -	2	Partial capture
06-13 05:16	20m	- / -	R3YK	0 / -	4	Partial capture
06-13 05:16	20m	- / +5	SV6JHA	-7 / -	3	✓ Closing fragment
06-13 05:12	20m	- / -13	R8CC	-10 / -	2	✓ Closing fragment
06-13 05:08	20m	- / -	R4HJN	-3 / -	3	Partial capture
06-13 05:08	20m	- / -	R6LKG	-20 / -	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
080015  +1 2394  RT4A/P IV3GHY -09 (x2)
080300 -17 2393  CQ RT4A/P LN28
080345  +4 2917  RT4A/P R9CS/P LO75
080345  -3  660  RT4A/P R8FH RR73 (x2)
080430 -18 2393  CQ RT4A/P LN28
080445  +5 2917  RT4A/P R9CS/P LO75
080530 -13 2394  R9CS/P RT4A/P -17
080630 -17 2393  CQ RT4A/P LN28 (x2)
090245 -13 2404  RT4A/P DG1KFR R-08
090300 -15 2134  CQ RT4A/P LN28 (x3)

40m

UTC    dB Audio  Message
172045 -11 2278  RT4A/P RW6ATD RR73
172645  +2 2805  RT4A/P IQ4JO JN63
172945 -21 1904  RT4A/P RA3THN LO26
173215  +3 2805  RT4A/P IQ4JO JN63 (x3)
173415  -7 2666  RT4A/P R6OD KN87 (x2)
173645 -14 2441  RT4A/P RG4D 73
173945 -12 2208  RT4A/P RN9N MO64 (x6)

80m

UTC    dB Audio  Message
004230 +12 2422  RT4A/P IQ4JO JN63
004245 -15  943  CQ RT4A/P LO20 (x7)
004630 -15 2034  RT4A/P RA3TKS -04
004645 -12  943  CQ RT4A/P LO20
004700  +5 2421  RT4A/P IQ4JO JN63
004700 -18 2034  RT4A/P RA3TKS -04
004715 -10  943  CQ RT4A/P LO20
004730 -14 2034  RT4A/P RA3TKS -04
004745 -11  943  CQ RT4A/P LO20

160m

UTC    dB Audio  Message
200000  -7  859  RT4A/P R6OE KN87 (x6)
200830 -16 1521  RT4A/P RT2P -14 (x2)
201430 -21 2084  RT4A/P UI6A -17
210215 -18 2075  RT4A/P UB4FTI -08 (x4)
211615  +0 1552  RT4A/P SP6LUV JO90 (x2)

Decoder S/N history by band

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