DO1RJB — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Locator transmitted in a decoded message: JO31

Receiver-side FT8 activity involving DO1RJB, decoded by SO8OO in southeastern Poland. 239 related FT8 messages, 103 CQ messages, observed on 160m, 80m, 60m, 10m, across 11 UTC dates. Heard between 2026-05-23 and 2026-08-20.

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

239

Related messages

103

CQ messages

UTC dates heard

-6 dB

Mean decoder S/N

Bands

80m 60m 10m 160m

First seen: 2026-05-23
Last seen: 2026-08-20 17:01 UTC

Frequent QSO partners observed at SO8OO

Stations DO1RJB worked most often, as logged from our receiver:

OO0O · Belgium ×2 DG4MCB · Fed. Rep. of Germany ×2 IQ0VT · Italy R2EA · European Russia DO1BWO · Fed. Rep. of Germany IN3IZQ · Italy DO6SI · Fed. Rep. of Germany DM2CNE · Fed. Rep. of Germany SP9SIL · Poland SP2FWC · Poland SV2CLJ · Greece F4FPR · France

Activity Heatmap

Locator transmitted by DO1RJB

Approximate centre of JO31, decoded 2026-08-20 19:01 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	DO1RJB S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-15 07:41	10m	- / -11	SV2CLJ	-11 / -	2	✓ Closing fragment
06-20 00:31	80m	-8 / -	HA8LD	- / -15	2	Partial capture
06-20 00:27	80m	-12 / -11	DK8HC/P	0 / +4	5	✓ Full exchange observed
06-20 00:24	80m	- / -6	E70SZ	-2 / -	3	✓ Closing fragment
06-20 00:21	80m	-15 / -15	IW9FRA	-14 / -13	8	✓ Full exchange observed
06-20 00:19	80m	-10 / -4	F5MYK	-11 / -1	4	✓ Full exchange observed
06-20 00:18	80m	-14 / -15	HA8LD	-4 / -	4	Partial capture
06-20 00:16	80m	-12 / -1	OO0O	-4 / +5	5	✓ Full exchange observed
06-20 00:14	80m	-7 / -	F4FPR	-20 / -10	3	✓ Closing observed
06-20 00:12	80m	-7 / -	DL2VEL	+2 / +8	4	✓ Closing observed
06-20 00:10	80m	-3 / -15	R2EA	-10 / -10	5	✓ Full exchange observed
06-20 00:08	80m	-6 / -	IQ0VT	+1 / -2	4	✓ Closing observed
06-16 21:22	160m	-9 / -	R2EA/P	- / -3	3	Partial capture
06-16 00:13	80m	+2 / -	ZS6WAB	- / -	2	Partial capture
06-16 00:11	80m	-5 / -	F5OYA/P	- / -	2	Partial capture
06-16 00:05	80m	+4 / +4	SP5LST	+15 / +5	7	✓ Full exchange observed
06-16 00:03	80m	-2 / -7	IN3IZQ	+6 / -	5	✓ Full exchange observed
06-15 23:56	80m	0 / -	ZS6WAB	- / -	2	Partial capture
06-15 23:54	80m	+2 / -	CE3SPR	- / -25	2	Partial capture
06-15 23:52	80m	-1 / -19	RL3F	-15 / +3	5	✓ Full exchange observed
06-15 23:51	80m	-3 / -11	EC3A	-8 / -5	4	✓ Full exchange observed
06-15 23:50	80m	+3 / -4	<...>	+9 / -	2	Partial capture
06-15 23:22	160m	-12 / -	SP9OJ	- / -14	6	Partial capture
06-11 21:30	160m	-4 / -	CT2GQA	- / -	2	Partial capture
06-11 21:24	160m	+2 / +9	DL7GP	+7 / -	4	✓ Closing observed
06-11 21:20	160m	-9 / -1	SP2FWC	+4 / +10	4	✓ Full exchange observed
06-11 21:18	160m	-5 / -	M7CWF	-21 / -9	4	✓ Closing observed
06-11 21:16	160m	-4 / -1	OE6JCG	0 / +3	4	✓ Full exchange observed
06-11 21:14	160m	-4 / -4	OR7K	+1 / -	6	✓ Full exchange observed
06-11 21:13	160m	-4 / -	DO6SI	- / -7	2	✓ Closing fragment
06-11 20:34	80m	+10 / +2	DK5AN	-12 / -22	5	✓ Full exchange observed
06-11 20:34	80m	+7 / -16	EA3DG	-17 / -25	9	✓ Full exchange observed
06-11 20:34	80m	+6 / +2	F1PBZ	+9 / +6	7	✓ Full exchange observed
06-01 22:06	160m	-18 / -	RU3DBT	- / -	2	Partial capture
06-01 22:03	160m	-8 / -	R5AT	- / -	3	Partial capture
06-01 22:00	160m	0 / -11	OO0O	-16 / -	7	✓ Full exchange observed
06-01 21:58	160m	-5 / -	F5RRS	- / -	2	Partial capture
06-01 21:52	160m	-8 / -	RU3DBT	- / -	2	Partial capture
06-01 21:50	160m	-13 / +8	S56P	+21 / -	4	✓ Closing observed
06-01 21:45	160m	-3 / -	RU3DBT	- / -9	3	Partial capture
06-01 21:32	160m	-6 / -	YB5QZ	- / -19	6	✓ Closing fragment
06-01 21:26	160m	-4 / -2	IK4MGP	+13 / -	5	✓ Full exchange observed
06-01 21:19	160m	-13 / -	G3DXC	- / -	2	Partial capture
06-01 21:15	160m	-4 / -	EA8UP	- / -	3	Partial capture
06-01 21:12	160m	-4 / -14	SP9SIL	-8 / -13	7	✓ Full exchange observed
06-01 21:05	160m	-6 / -3	DF6WE	-10 / +9	4	✓ Full exchange observed
06-01 21:03	160m	-6 / -	F5RRS	- / -	3	Partial capture
06-01 21:00	160m	-9 / -4	DK7QJ	-4 / +7	6	✓ Full exchange observed
06-01 20:57	160m	-5 / -10	DO1WS	-1 / +9	5	✓ Full exchange observed
06-01 20:54	160m	-4 / -	LA7NO	- / -	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
002445  -1 1791  DO1RJB E70SZ R-06 (x2)
002700  -9 2342  CQ DO1RJB JO31
002715  +0  462  DO1RJB DK8HC/P JO42
002730 -11 2341  DK8HC/P DO1RJB +04
002745  +0  462  DO1RJB DK8HC/P R-11
002800 -12 2341  DK8HC/P DO1RJB RR73
002815  -1  462  DO1RJB DK8HC/P 73
002900  -6 2341  CQ DO1RJB JO31 (x2)
003100  -8 2341  HA8LD DO1RJB JO31 (x2)
003230  -5 2341  CQ DO1RJB JO31 (x3)

10m

UTC    dB Audio  Message
074130 -13  635  DO1RJB SV2CLJ -11 (x2)

160m

UTC    dB Audio  Message
212315 -10 2116  R2EA/P DO1RJB -03 (x2)
212545 -14 2116  CQ DO1RJB JO31 (x13)

60m

UTC    dB Audio  Message
001200  -2 2482  DO1RJB PE1NPS R-01
001215  -7 1964  PE1NPS DO1RJB RR73
001230 -14 1533  DO1RJB DK7ZT +11
001230  -2 2482  DO1RJB PE1NPS 73
001245 -11 1965  DK7ZT DO1RJB R+15
001300 -16 1533  DO1RJB DK7ZT RR73
001315 -16 1965  DK7ZT DO1RJB 73
001400  -5 1964  CE4WJK DO1RJB JO31
001445  -4 1964  ZA5G DO1RJB JO31
001530  -7  759  DO1RJB ZA5G RR73
001545 -11 1964  ZA5G DO1RJB 73
001630 -12 2196  CE4WJK DO1RJB JO31 (x4)

Decoder S/N history by band

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