RT4A/QRP — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia

Receiver-side FT8 activity involving RT4A/QRP, decoded by SO8OO in southeastern Poland. 1,368 related FT8 messages, 1,050 CQ messages, observed on 80m, 40m, 20m, across 9 UTC dates. Heard between 2026-06-07 and 2026-08-18.

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

1,368

Related messages

1,050

CQ messages

UTC dates heard

-10 dB

Mean decoder S/N

Bands

80m 20m 40m

First seen: 2026-06-07
Last seen: 2026-08-18 00:22 UTC

Frequent QSO partners observed at SO8OO

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

8C81NB · Indonesia ×2 8E81KG · Indonesia ×2 8B81KB · Indonesia RA0SCA · Asiatic Russia AO314A · Spain R9CP · Asiatic Russia DL1EDR · Fed. Rep. of Germany R6AAU · European Russia LZ67PP · Bulgaria IZ3ATV · Italy R2GBR · 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	RT4A/QRP S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-18 01:26	80m	- / +4	DO8DL	-1 / -	4	Partial capture
08-18 01:22	80m	-8 / -	<...>	-9 / -	4	✓ Closing fragment
08-18 01:19	80m	-7 / -	DO8DL	- / -9	4	Partial capture
08-18 01:16	80m	-10 / -	<...>	-7 / -	2	✓ Closing fragment
08-18 01:08	80m	-11 / -	LA5LLA	- / -2	4	Partial capture
08-18 00:59	80m	-7 / -1	OG1AO	-5 / 0	3	Partial capture
08-18 00:53	80m	-13 / -	R9CP	- / -2	2	✓ Closing fragment
08-18 00:37	80m	-12 / -	<...>	-8 / -	4	✓ Closing fragment
08-18 00:37	80m	-10 / -17	DO1MGN	-12 / -14	3	Partial capture
08-18 00:21	80m	-14 / -5	OG1AO	+1 / 0	2	Partial capture
08-18 00:17	80m	-12 / -	<...>	+10 / -	2	✓ Closing fragment
08-18 00:09	80m	-14 / -	YT1KN	- / -4	3	Partial capture
08-18 00:08	80m	-13 / -	F5RRS	- / 0	2	Partial capture
08-18 00:07	80m	-13 / -	<...>	+6 / -	5	✓ Closing fragment
08-17 23:51	80m	-14 / -	<...>	-11 / -	3	✓ Closing fragment
08-17 23:50	80m	-13 / -	EA8AR	- / -15	2	Partial capture
08-17 23:35	80m	- / -	F4FPR	-17 / -	5	Partial capture
08-17 23:28	80m	- / -	R6ZEJ	+4 / -	3	Partial capture
08-17 23:23	80m	-9 / -15	DL1EDR	0 / -4	3	✓ Full exchange observed
08-17 23:11	80m	-15 / -	<...>	+2 / -	4	✓ Closing fragment
08-17 23:10	80m	-16 / -8	E70SZ	+6 / +1	3	Partial capture
08-17 23:01	80m	-23 / -	<...>	-10 / -	2	✓ Closing fragment
08-17 23:01	80m	-14 / -9	RZ3BP	-12 / -10	2	Partial capture
08-17 22:30	80m	- / -	DD1UN	+8 / -	10	Partial capture
08-17 22:26	80m	-14 / -	<...>	+2 / -	4	✓ Closing fragment
08-17 22:23	80m	-12 / -	<...>	-4 / -	2	✓ Closing fragment
08-17 22:23	80m	-11 / -8	DB4KBR	0 / -10	3	Partial capture
08-17 22:17	80m	-12 / -	DO6JSA	- / -15	7	Partial capture
08-17 22:12	80m	-10 / -	<...>	- / -	2	✓ Closing fragment
08-17 22:11	80m	-12 / -	DO5PY	- / -12	2	Partial capture
08-17 22:08	80m	-10 / -	<...>	-6 / -	4	✓ Closing fragment
08-17 22:04	80m	-12 / -	<...>	+1 / -	4	✓ Closing fragment
08-17 21:57	80m	-11 / -	<...>	+11 / -	4	✓ Closing fragment
08-17 21:52	80m	-12 / -	<...>	+7 / -	2	✓ Closing fragment
08-17 21:49	80m	-13 / -	<...>	-4 / -	2	✓ Closing fragment
08-17 21:45	80m	-13 / -15	IW3RSW	0 / -13	3	Partial capture
08-17 21:42	80m	-11 / +3	OH3GBW	+2 / -2	3	Partial capture
08-17 21:40	80m	-13 / -	<...>	+4 / -	10	✓ Closing fragment
08-17 21:34	80m	-12 / -	<...>	-11 / -	2	✓ Closing fragment
08-17 21:34	80m	-12 / -13	M6OTN	-12 / -7	3	Partial capture
08-17 21:31	80m	-13 / -	<...>	-1 / -	2	✓ Closing fragment
08-17 21:31	80m	-13 / -16	PA5TON	-5 / -3	2	Partial capture
08-17 21:22	80m	-16 / -14	SV9MBH	-10 / -8	7	Partial capture
08-17 21:22	80m	-15 / -	<...>	-16 / -	2	✓ Closing fragment
08-17 21:18	80m	-18 / -	<...>	+2 / -	2	✓ Closing fragment
08-17 21:14	80m	- / -	G3ESE	-12 / -	3	Partial capture
08-17 21:04	80m	-19 / -	<...>	-10 / -	3	✓ Closing fragment
08-17 21:03	80m	-18 / -16	DM2BM	-6 / -14	3	Partial capture
08-17 20:59	80m	-16 / -	<...>	-10 / -	2	✓ Closing fragment
08-17 20:33	80m	- / -16	R3ICU	-5 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
013545  -8 1878  <...> RT4A/QRP RR73
013615  -7 1878  CQ RT4A/QRP (x13)
022215 -24 1871  RT4A/QRP KB2GCG FM29

40m

UTC    dB Audio  Message
185445  -7 1163  RT4A/QRP <...> 73 (x4)
184830  -7 1913  RT4A/QRP 9A1CCB JN85 (x3)
184945 -23 1905  RT4A/QRP DK7ZT -07 (x8)

20m

UTC    dB Audio  Message
174315  -4 1543  8E81KG RT4A/QRP 73
174545 -18 1853  RT4A/QRP EA7AZH -12
174645 -14 1857  RT4A/QRP HA7XL JN97 (x2)
175315  -6 1857  RT4A/QRP YO6PNM KN25 (x6)
180845 -17 1861  RT4A/QRP UA6YEX -14
180845 -16 1544  RT4A/QRP F1ODM -15
181045 -13 1543  RT4A/QRP PD7JLP JO32
181415 -11 1863  RT4A/QRP PD4WAC JO22 (x2)

Decoder S/N history by band

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