SM7RHI — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Sweden Locator transmitted in a decoded message: JO75

Receiver-side FT8 activity involving SM7RHI, decoded by SO8OO in southeastern Poland. 4,531 related FT8 messages, 2,453 CQ messages, observed on 80m, 40m, 20m, 10m, across 80 UTC dates. Heard between 2026-05-01 and 2026-07-30.

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

4,531

Related messages

2,453

CQ messages

UTC dates heard

-4 dB

Mean decoder S/N

Bands

80m 40m 20m 10m

First seen: 2026-05-01
Last seen: 2026-07-30 00:29 UTC

Frequent QSO partners observed at SO8OO

Stations SM7RHI worked most often, as logged from our receiver:

F1IQH · France ×6 DG5PW · Fed. Rep. of Germany ×3 AF4OZ · United States ×2 RI0SP · European Russia ×2 HI8J · Dominican Republic ×2 W3XOX · United States ×2 K3RRP · United States ×2 TA3NK · Asiatic Turkey ×2 KC1OEK · United States ×2 EP2AES · Iran ×2 IQ0VT · Italy ×2 DL7FE · Fed. Rep. of Germany ×2

Activity Heatmap

Locator transmitted by SM7RHI

Approximate centre of JO75, decoded 2026-07-30 02:31 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	SM7RHI S/N	Counterpart	Counterpart S/N	Msgs	Capture
07-30 02:30	40m	-6 / -	KE2CUR	- / -	2	✓ Closing fragment
07-30 02:24	40m	-8 / -13	DK5ON	-18 / -20	5	✓ Full exchange observed
07-30 02:21	40m	-11 / -	ES5MAH	- / -5	4	✓ Closing fragment
07-30 02:16	40m	-13 / -9	LA9GX	-5 / -5	3	Partial capture
07-29 03:44	40m	-1 / -	AA9JC	- / -14	2	Partial capture
07-29 03:42	40m	+2 / -	MW7RHR	-20 / -4	4	✓ Closing observed
07-29 03:41	40m	-11 / -	K4AKA	- / -7	3	✓ Closing fragment
07-28 23:33	40m	-2 / -	YY4GPM	- / -	2	Partial capture
07-28 23:31	40m	-6 / -	HI8J	- / -1	3	✓ Closing fragment
07-28 23:25	40m	-20 / -	YY4GPM	- / -	2	Partial capture
07-28 23:19	40m	-7 / +9	DK5WO	-14 / -	5	✓ Closing observed
07-28 23:18	40m	-6 / -	YB5QZ	- / +4	2	✓ Closing fragment
07-22 00:43	40m	- / +3	W4DXM	-12 / -	2	✓ Closing fragment
07-21 05:53	20m	-9 / -	K9STL	- / -8	2	Partial capture
07-21 05:49	20m	- / -	PE1BSF	-11 / -	3	Partial capture
07-21 05:48	20m	-4 / -	ZL4KX	- / -	2	Partial capture
07-21 05:41	40m	-10 / -	OE3HPT	- / -	2	✓ Closing fragment
07-20 00:54	40m	-5 / -	WD4AGF	- / -24	2	Partial capture
07-20 00:51	40m	-12 / -	KQ4TCL	- / -18	2	Partial capture
07-20 00:50	40m	-12 / -	OH1CIN	-19 / +7	3	✓ Closing observed
07-20 00:48	40m	-9 / -	F1IQH	- / -6	2	✓ Closing fragment
07-20 00:47	40m	-5 / -	D44AG	- / -	2	Partial capture
07-20 00:45	40m	-5 / -	HA3GX	- / -12	3	✓ Closing fragment
07-20 00:44	40m	-7 / -	AF4OZ	- / -10	2	✓ Closing fragment
07-20 00:41	40m	-10 / -	<...>	- / -	2	Partial capture
07-19 04:33	40m	-13 / -	SA0PAL	-12 / +2	2	✓ Closing observed
07-19 04:27	20m	- / -12	KB3VNG	-9 / -	2	✓ Closing fragment
07-16 17:43	40m	-11 / -	SP8FO	- / -	2	✓ Closing fragment
07-16 17:39	40m	-15 / -	DF5DY	- / -	2	✓ Closing fragment
07-16 17:38	40m	-12 / -	DL6CGN	-13 / -16	4	✓ Closing observed
07-16 17:33	40m	-14 / -	EI5HV	- / -17	2	✓ Closing fragment
07-16 17:31	40m	-4 / -13	DM3CH	-14 / -12	4	✓ Full exchange observed
07-16 17:29	40m	-1 / -	RM4N	- / +2	2	✓ Closing fragment
07-15 21:48	40m	-8 / -	TA3NK	- / -7	2	✓ Closing fragment
07-15 21:42	40m	-6 / -	SM5DXR	- / -10	3	✓ Closing fragment
07-15 21:36	40m	-11 / +7	IV3DSG	-5 / +10	5	✓ Full exchange observed
07-15 21:32	40m	-12 / +1	DL1IP	-5 / -	5	✓ Full exchange observed
07-15 16:12	40m	-4 / -	US5WAN	- / -4	2	✓ Closing fragment
07-15 16:06	40m	-12 / -	OH5CY	- / -	2	Partial capture
07-14 23:16	40m	- / -	IK4LZH	-2 / -	4	Partial capture
07-14 05:38	40m	-11 / -	DH8KAM	- / -7	3	✓ Closing fragment
07-14 05:36	40m	-13 / -	LB8VE	- / -2	3	✓ Closing fragment
07-14 05:02	40m	-14 / -	RK6OZ	- / -9	2	✓ Closing fragment
07-14 05:00	40m	-8 / -	EA3JEZ	- / -9	2	Partial capture
07-14 04:42	40m	-8 / -	SM0MWZ	- / -	2	✓ Closing fragment
07-14 01:57	40m	- / -16	W3DIY	-16 / -	3	✓ Closing fragment
07-13 22:57	40m	- / -	IK4LZH	-3 / -	4	Partial capture
07-13 22:49	40m	- / -	IK4LZH	-4 / -	3	Partial capture
07-12 22:35	40m	-2 / -	SP2KW	- / -21	2	✓ Closing fragment
07-12 22:31	40m	-8 / -	PT9TI	- / -18	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
022300 -12 2495  ES5MAH SM7RHI 73
022330  -8 2495  CQ SM7RHI JO75 (x2)
022415 -19 2244  SM7RHI DK5ON -13
022430  -7 2495  CQ SM7RHI JO75
022445 -16 2243  SM7RHI DK5ON -13
022530  -6 2495  DK5ON SM7RHI R-20
022545 -20 2244  SM7RHI DK5ON RR73
022600 -11 2495  DK5ON SM7RHI 73
022700 -12 2495  W5DMS SM7RHI -24
022915 -14  240  CQ SM7RHI JO75                        a1 (x2)
023045  -6  240  KE2CUR SM7RHI RR73 (x2)
023145 -14  240  KB6DAD SM7RHI JO75

20m

UTC    dB Audio  Message
040815 -20 2056  SM7RHI UG4Y 73
042700  -9  575  SM7RHI KB3VNG -12 (x2)
054730  -4 3034  CQ SM7RHI JO75
054830  -8 3035  ZL4KX SM7RHI JO75 (x2)
054915 -10 1067  SM7RHI PE1BSF JO32 (x2)
055030  -6 3035  NG7E SM7RHI JO75
055045 -14 1067  SM7RHI PE1BSF JO32
055200 -12 3035  CQ SM7RHI JO75
055300  -8 3035  K9STL SM7RHI JO75 (x2)
032045 -10  318  SM7RHI CT1BFP R-12
033330 -10  527  SM7RHI 7Z1GC -07

10m

UTC    dB Audio  Message
174130  +6 2591  CQ SM7RHI JO75 (x4)
174445 -12 2500  SM7RHI IQ4JO JN63 (x3)
174645  +6 2592  SQ7HJX SM7RHI JO75
174645  -9 2500  SM7RHI IQ4JO R-26 (x2)
174730  +9 2592  IQ4JO SM7RHI RR73

Decoder S/N history by band

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