OT4R — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Belgium Locator transmitted in a decoded message: JO21

Receiver-side FT8 activity involving OT4R, decoded by SO8OO in southeastern Poland. 658 related FT8 messages, 37 CQ messages, observed on 60m, 40m, 20m, 10m, across 66 UTC dates. Heard between 2026-05-26 and 2026-08-23.

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

658

Related messages

CQ messages

UTC dates heard

-8 dB

Mean decoder S/N

Bands

60m 40m 20m 10m

First seen: 2026-05-26
Last seen: 2026-08-23 19:44 UTC

Frequent QSO partners observed at SO8OO

Stations OT4R worked most often, as logged from our receiver:

OE2EJN · Austria ×2 EB1LA · Spain ×2 DL3IKE · Fed. Rep. of Germany ×2 EA2EES · Spain ×2 HB9CNU · Switzerland ×2 F4EPP · France ×2 OZ9FF · Denmark ×2 IK8TWV · Italy ×2 SP9SIL · Poland ×2 DL9KM · Fed. Rep. of Germany ×2 G4DBW · England ×2 DM5JBN · Fed. Rep. of Germany ×2

Activity Heatmap

Locator transmitted by OT4R

Approximate centre of JO21, decoded 2026-08-23 21:33 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	OT4R S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-23 21:43	60m	-4 / +2	OZ1LGJ	-16 / +6	4	✓ Full exchange observed
08-23 21:39	40m	- / -8	OZ/KD0NDU	+2 / -	2	Partial capture
08-23 21:36	40m	+2 / -	G0JJL/P	- / +7	6	Partial capture
08-23 21:34	40m	0 / -	UT5VQ	- / -5	2	✓ Closing fragment
08-23 21:33	40m	-4 / -	SQ2JG	- / +6	2	Partial capture
08-23 21:28	40m	-9 / +5	G3ZSU	-3 / -1	5	✓ Full exchange observed
08-23 21:26	40m	-2 / -	TN8GD	- / -15	2	Partial capture
08-23 21:24	40m	-11 / -7	G0JJL/P	-12 / -5	3	✓ Full exchange observed
08-23 21:22	40m	- / -11	II7MGBT	-6 / -	2	Partial capture
08-23 21:20	60m	-9 / -	PA2JWN	- / -9	2	Partial capture
08-23 21:18	60m	-14 / +1	G4FHL	-13 / -8	4	✓ Full exchange observed
08-23 21:17	60m	-12 / -5	G0LZX	-8 / -3	4	✓ Full exchange observed
08-23 21:14	60m	-11 / -	OZ1LGJ	- / +5	3	Partial capture
08-23 21:13	60m	-12 / -8	GM2OT	-11 / -11	4	✓ Full exchange observed
08-23 21:11	60m	-11 / -	PA3ANG	- / -12	3	✓ Closing fragment
08-23 21:09	60m	-16 / -1	DL3RDO	-4 / -2	4	✓ Full exchange observed
08-22 12:17	20m	-23 / -	G0MGK	- / 0	2	Partial capture
08-22 12:16	20m	- / -	G0AMO	-15 / -	2	✓ Closing fragment
08-22 12:11	20m	-17 / -	M0LAD	- / -	3	Partial capture
08-22 08:29	40m	-21 / +4	DL1PSK	-20 / -3	3	✓ Full exchange observed
08-22 07:48	40m	-17 / -	DC9GT	- / -3	4	Partial capture
08-22 07:41	40m	-12 / -3	DC9GT	-9 / 0	4	Partial capture
08-22 07:38	40m	-6 / -	<...>	- / -1	2	Partial capture
08-21 21:30	60m	-13 / -	DK2SP	- / +2	3	Partial capture
08-21 21:21	60m	-9 / +4	SP2HCA	-6 / -	3	✓ Closing observed
08-21 21:14	60m	-10 / -	OE7OPJ	-17 / -3	6	✓ Full exchange observed
08-21 09:07	40m	-20 / -	<...>	- / -6	2	Partial capture
08-21 09:04	40m	-20 / -	F8BOD	- / -11	2	✓ Closing fragment
08-21 08:55	40m	-15 / -	IW3HKL	- / -8	3	✓ Closing fragment
08-21 08:02	40m	-18 / +1	DB6XK	-6 / -3	4	✓ Full exchange observed
08-21 08:01	40m	-18 / -12	IK2YYO	-16 / -	3	✓ Closing observed
08-20 21:20	60m	-7 / -15	PA3DOL	+4 / +1	5	✓ Full exchange observed
08-20 21:13	60m	-6 / -4	SP5PDA	+1 / -4	7	✓ Full exchange observed
08-20 21:12	60m	-4 / -	UR5EDX	- / +10	2	Partial capture
08-20 21:09	60m	-10 / -	IU8PYW	- / -10	2	Partial capture
08-20 21:08	60m	-8 / +1	DD1GR	-12 / -7	4	✓ Full exchange observed
08-20 21:06	60m	-8 / -9	DM5JBN	+5 / +3	4	✓ Full exchange observed
08-20 21:04	60m	-9 / -	OE9DAI	- / -	3	✓ Closing fragment
08-20 21:00	60m	-8 / -6	DL9KM	-18 / -	5	✓ Closing observed
08-20 20:59	60m	-8 / -6	SN5J	+10 / +1	8	✓ Full exchange observed
08-20 20:57	60m	-11 / +4	DL6RS	+1 / -1	3	✓ Full exchange observed
08-20 20:55	60m	-12 / -4	F4VWD	-21 / -9	4	✓ Full exchange observed
08-20 08:45	40m	-22 / -	DJ9GP	- / -12	2	Partial capture
08-20 07:40	40m	-15 / -15	SP6SR	-4 / -8	12	✓ Full exchange observed
08-20 07:38	40m	-12 / +7	SQ1MNG	-5 / -	4	✓ Closing observed
08-20 07:38	40m	-12 / -	DD9PN	-19 / 0	3	✓ Closing observed
08-20 07:36	40m	-10 / +3	SP1DL	+1 / -7	4	✓ Full exchange observed
08-20 07:32	40m	-14 / 0	G1UZL	-20 / -7	6	✓ Full exchange observed
08-19 05:40	60m	-20 / -2	DL9OE	-3 / +5	3	✓ Full exchange observed
08-18 21:21	60m	-2 / -	DF9AO	- / 0	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
211545 -11 1412  OZ1LGJ OT4R +03
211700 -13 1411  G0LZX OT4R -03
211715  -7  680  OT4R G0LZX R-05
211730 -12 1412  G0LZX OT4R RR73
211745  -9  680  OT4R G0LZX 73
211830 -11 1412  G4FHL OT4R -08
211845 -13  984  OT4R G4FHL R+01
211900 -16 1411  G4FHL OT4R RR73
211915 -13  984  OT4R G4FHL 73
212000  -8 1411  PA2JWN OT4R -09 (x2)
214345  -6 1412  OZ1LGJ OT4R +06
214400 -16 1348  OT4R OZ1LGJ R+02
214415  -3 1412  OZ1LGJ OT4R RR73
214430 -17 1348  OT4R OZ1LGJ 73

40m

UTC    dB Audio  Message
213045  -8 1417  G3ZSU OT4R RR73
213130  -1 2362  OT4R G3ZSU 73
213315  -4 1417  SQ2JG OT4R JO21 (x2)
213430  -2 1417  UT5VQ OT4R R-05 (x2)
213600  -1 1417  G0JJL/P OT4R +07 (x5)
213915  +2 1431  OT4R OZ/KD0NDU R-08
213930  +0 1417  G0JJL/P OT4R +12
213945  +1 1431  OT4R OZ/KD0NDU R-08
214200  -7 1417  OZ/KD0NDU OT4R -01

20m

UTC    dB Audio  Message
093130 -19 1463  UR5WCS OT4R -05
093445  +2 2534  OT4R HB9BUN R-01
140400 -24 1462  M7EJN OT4R +05
140545 -24 1462  G4SPE OT4R +01
114545 -22 1476  EW2M OT4R -04
114815 -16 1601  OT4R ON4AOI R-13
121115 -18 1455  M0LAD OT4R +11 (x3)
121600 -18 2240  OT4R G0AMO R+14 (x2)
121730 -22 1454  G0MGK OT4R +00 (x2)
121930 -24 1454  M0PEI OT4R +04
122100 -18 1454  G0MGK OT4R +10

10m

UTC    dB Audio  Message
105215 -15 1396  SQ5PTZ OT4R RR73 (x2)
082915 -12 1838  OT4R IV3TUO R+04 (x2)
090800 -22 1459  OE1AVO OT4R +10
092045 -10 1460  OT4R F4ETS R-13 (x2)
131830 -18 1502  OT4R F5THL R-03 (x2)
083130 -16 1398  OT4R IT9CMZ 73
085245 -22 1905  OT4R IU8QRL R-04
114715 -12 2394  OT4R D2ACE 73
092100 -22 1528  OK1HWS OT4R -04 (x2)
130800 -24 1391  <...> OT4R -13

Decoder S/N history by band

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