ON5AI — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving ON5AI, decoded by SO8OO in southeastern Poland. 662 related FT8 messages, 179 CQ messages, observed on 80m, 60m, 40m, 20m, 10m, across 22 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.

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Overview

662

Related messages

179

CQ messages

UTC dates heard

-9 dB

Mean decoder S/N

Bands

80m 20m 40m 60m 10m

First seen: 2026-05-25
Last seen: 2026-08-22 05:28 UTC

Frequent QSO partners observed at SO8OO

Stations ON5AI worked most often, as logged from our receiver:

IQ4JO · Italy ×2 R2AL · European Russia ×2 RZ4FWA · European Russia ×2 G0BLB · England ×2 HA7TM · Hungary ×2 PC2J · Netherlands DK4RH · Fed. Rep. of Germany UX0ZAB · Ukraine K4YJ · United States OD5KU · Lebanon F4HSB · France DL3JHK · Fed. Rep. of Germany

Activity Heatmap

Locator transmitted by ON5AI

Approximate centre of JO21, decoded 2026-08-22 07:28 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	ON5AI S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-22 07:28	20m	-15 / -3	RA3PS	-5 / +7	5	✓ Full exchange observed
08-22 07:19	20m	-11 / -18	MW7RHR	-4 / -11	4	✓ Full exchange observed
08-22 07:05	20m	-12 / -	SP8S/P	- / -	2	Partial capture
08-22 07:03	20m	-13 / -	S54NA	- / -	4	Partial capture
08-22 06:12	20m	-8 / -	3V8HP	- / -	4	Partial capture
08-22 05:52	20m	-6 / -16	VK7AC	-1 / -	3	Partial capture
08-21 17:02	20m	-11 / -	EX7CQ	- / -	9	Partial capture
08-21 10:40	20m	-19 / 0	GU4WRP	-22 / -	2	✓ Closing observed
08-21 08:27	20m	-19 / -	GU0SUP	- / -	5	Partial capture
08-21 06:39	20m	- / -12	A93MO	-10 / -	2	✓ Closing fragment
08-21 05:52	40m	-22 / -	HI3JCC	- / -	3	Partial capture
08-18 19:01	40m	- / -1	RN2F	-12 / -	2	✓ Closing fragment
08-16 21:22	80m	-15 / 0	TF4M	-12 / -25	5	✓ Full exchange observed
08-16 21:19	80m	- / -	UR3QCB	-10 / -	4	Partial capture
08-16 21:17	80m	-14 / +9	F4MGP	-12 / -25	5	✓ Full exchange observed
08-16 21:17	80m	-14 / -4	G8OO	-8 / +1	7	✓ Full exchange observed
08-16 21:14	80m	-17 / -3	DG2EBG	-3 / -5	5	✓ Full exchange observed
08-16 21:14	80m	- / -	PH7GD	-6 / -	2	Partial capture
08-16 21:11	80m	-24 / -5	DF0JEN	-8 / -6	5	✓ Full exchange observed
08-16 21:09	80m	-16 / +4	DH5BO	-1 / -25	6	✓ Full exchange observed
08-16 21:09	80m	- / -	YT2FA	+4 / -	2	Partial capture
08-16 21:03	80m	- / -	DD7EE	+7 / -	3	Partial capture
08-16 21:03	80m	-18 / -3	F5MYK	-10 / -15	13	Partial capture
08-16 21:02	80m	-12 / -13	DK4RH	-3 / -1	5	✓ Full exchange observed
08-16 20:59	80m	-12 / +4	DK5IR	-4 / -	5	✓ Closing observed
08-16 20:55	80m	-19 / -4	DL3JHK	-12 / -23	10	✓ Full exchange observed
08-16 20:51	80m	-12 / -19	R5AV	+4 / -23	4	✓ Full exchange observed
08-16 20:45	80m	- / -	PH7GD	-8 / -	5	Partial capture
08-16 20:42	80m	-14 / 0	DO5HOK	+2 / -10	5	✓ Full exchange observed
08-16 20:39	80m	-14 / -8	F5RRS	0 / -	5	✓ Closing observed
08-16 20:36	80m	-18 / -5	HB3YBG	+1 / -7	6	Partial capture
08-16 20:34	80m	-14 / -4	DL2JLB	-6 / -	14	✓ Closing observed
08-16 20:34	80m	-16 / -2	PA3BMB	+1 / -4	5	✓ Full exchange observed
08-16 20:31	80m	-21 / -	DM8ET	- / -25	5	✓ Closing fragment
08-16 20:30	80m	-18 / -13	DL2VN	-3 / -7	5	✓ Full exchange observed
08-16 20:30	80m	- / -	PH7GD	-6 / -	5	Partial capture
08-16 20:27	80m	-18 / -6	DL4KSD	-3 / -25	5	Partial capture
08-16 20:27	80m	- / -	DO6JSA	-23 / -	4	Partial capture
08-16 20:26	80m	-22 / -11	HA7TM	+13 / -17	5	✓ Full exchange observed
08-16 20:25	80m	-22 / -12	UA2KU	+6 / -21	4	✓ Full exchange observed
08-16 20:24	80m	- / -	PH7GD	-11 / -	4	Partial capture
08-16 20:24	80m	-24 / -8	EI4JFB	-10 / -9	5	✓ Full exchange observed
08-16 12:23	20m	- / -10	MI0JZZ	-6 / -	2	Partial capture
08-16 06:40	20m	-14 / -	R1BEO	- / -22	3	✓ Closing fragment
08-16 06:27	20m	-20 / -15	RA3DAD	-18 / +10	2	Partial capture
08-16 06:21	20m	-15 / -	UT7UJ	- / -24	3	✓ Closing fragment
08-16 06:14	20m	- / -	EA3GXK	-17 / -	2	✓ Closing fragment
08-16 05:09	60m	- / +6	DN2FBG	-8 / -	4	✓ Closing fragment
08-16 05:09	60m	- / -	G0BLB	-9 / -	3	✓ Closing fragment
08-16 05:09	60m	- / -	PC2F	-17 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
070345 -16 1122  S54NA ON5AI JO21 (x3)
070545 -13 1122  SP8S/P ON5AI JO21 (x2)
070815  -7 1125  UF4S/P ON5AI JO21
071915 -11 1122  MW7RHR ON5AI JO21
071930  -4 1458  ON5AI MW7RHR -18
071945  -8 1122  MW7RHR ON5AI R-11 (x2)
072800 -17 1124  RA3PS ON5AI JO21 (x2)
072845  -5 1281  ON5AI RA3PS -03
072900 -16 1125  RA3PS ON5AI R+07 (x2)

40m

UTC    dB Audio  Message
063345 -17 2005  ON5AI DJ2VA R+12 (x2)
063745 -17 1421  ON5AI SP9D JO90
063915 -10  986  ON5AI UX7QV KN29 (x2)
090230 -23 1644  ON5AI SQ9M -03 (x2)
201715 -17  985  CN8NS ON5AI JO21
052345 -17 1466  ON5AI IU2HUQ -08
190115 -13 2364  ON5AI RN2F -01 (x2)
055230 -21 1987  HI3JCC ON5AI JO21 (x3)
060815 -22 1987  OJ0JR ON5AI JO21

80m

UTC    dB Audio  Message
211915  -8  752  ON5AI G8OO 73
211930 -16  952  CQ ON5AI JO21
211945 -13  952  ON5AI UR3QCB KN77
212000 -14  952  CQ ON5AI JO21
212015 -10  952  ON5AI UR3QCB KN77
212030 -19  952  CQ ON5AI JO21
212045 -10  952  ON5AI UR3QCB KN77
212100 -23  952  CQ ON5AI JO21
212115  -8  952  ON5AI UR3QCB KN77
212200  -8  952  LB9ZG ON5AI JO21
212230 -19  952  TF4M ON5AI JO21
212245 -15 2401  ON5AI TF4M +00
212300 -15  952  TF4M ON5AI R-25
212315  -9 2400  ON5AI TF4M RR73
212330 -12  952  TF4M ON5AI 73

60m

UTC    dB Audio  Message
043245  -2 1043  ON5AI ON7GB JO21 (x4)
050900 -11  734  ON5AI DN2FBG JO40
050900 -11  558  ON5AI G0BLB IO81
050900 -17 1528  ON5AI PC2F JO22 (x3)
051030  -6  734  ON5AI DN2FBG JO40
051100  -8  558  ON5AI G0BLB IO81
051100  -9  734  ON5AI DN2FBG R+06 (x2)
051230  -9  558  ON5AI G0BLB 73
051330 -21 1527  ON5AI PC2F 73

10m

UTC    dB Audio  Message
131145 -13 2142  ON5AI ES2AJ -19 (x2)
192245  +3  777  ON5AI Z61DX -03

Decoder S/N history by band

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