SP4GDC — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Locator transmitted in a decoded message: KO03

Receiver-side FT8 activity involving SP4GDC, decoded by SO8OO in southeastern Poland. 109 related FT8 messages, 28 CQ messages, observed on 80m, 40m, 20m, 10m, across 16 UTC dates. Heard between 2026-05-27 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

109

Related messages

CQ messages

UTC dates heard

-4 dB

Mean decoder S/N

Bands

80m 40m 20m 10m

First seen: 2026-05-27
Last seen: 2026-08-20 19:03 UTC

Frequent QSO partners observed at SO8OO

Stations SP4GDC worked most often, as logged from our receiver:

PE2JMR · Netherlands ×2 9A9N · Croatia ×2 D2UY · Angola ×2 DG6VC · Fed. Rep. of Germany DL4KSD · Fed. Rep. of Germany TN8GD · Republic of the Congo YT1DDL · Serbia SP7ROH · Poland ED7SUN · Spain M0VTS/P · England IQ4JO · Italy CR7BRV · Portugal

Activity Heatmap

Locator transmitted by SP4GDC

Approximate centre of KO03, decoded 2026-08-20 20:55 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	SP4GDC S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-20 20:55	40m	-16 / -	<...>	- / -14	2	Partial capture
08-20 20:49	80m	+5 / -6	PE2JMR	+3 / -4	5	✓ Full exchange observed
08-20 20:48	80m	+4 / -9	SP7ROH	+6 / +1	4	✓ Full exchange observed
08-20 20:45	80m	- / +5	R8CW/4	-10 / -	2	Partial capture
08-20 20:43	80m	+4 / -	YT1DDL	-2 / -11	5	✓ Closing observed
08-20 20:38	80m	+3 / -8	9A9N	+8 / -7	6	✓ Full exchange observed
08-15 10:15	10m	- / +2	IT9VCE	-10 / -	2	✓ Closing fragment
08-02 20:10	80m	+12 / -	PR2PT	- / -	4	Partial capture
08-02 20:03	80m	+18 / -	5Z4AB	- / -	4	Partial capture
08-02 19:44	80m	+16 / -	5Z4AB	- / -	5	Partial capture
08-02 19:08	80m	- / -4	DL9KM	-11 / -	4	Partial capture
08-02 19:08	80m	+4 / -	YB7IBR	-22 / -15	11	✓ Closing observed
08-02 19:03	80m	+10 / -	SV8GXC	-23 / -16	3	✓ Closing observed
08-02 19:03	80m	+12 / +7	SQ9OJV	+10 / -3	8	✓ Full exchange observed
08-02 19:03	80m	+6 / -	SV9MBH	-12 / -11	3	✓ Closing observed
08-02 19:01	80m	+6 / -	R1641AZ	- / -9	2	Partial capture
07-30 22:36	40m	-18 / -	KL7P	- / -	4	Partial capture
07-24 21:18	10m	- / +2	DG6VC	-6 / -	5	✓ Closing fragment
07-17 16:45	40m	-9 / -	T22TT	- / -	3	Partial capture
07-17 16:35	40m	-16 / -	T22TT	- / -	4	Partial capture
07-16 21:24	80m	+11 / 0	DL4KSD	-5 / -2	5	✓ Full exchange observed
07-16 21:22	80m	+12 / -	DM4IG	- / -11	2	✓ Closing fragment
07-16 21:21	80m	+12 / +9	CR7BXA	-12 / -13	5	✓ Full exchange observed
07-16 21:17	80m	+11 / -	HA3GX	+3 / -13	3	✓ Closing observed
07-16 21:12	80m	+14 / -11	HB9MZI	-15 / -13	5	✓ Full exchange observed
07-16 21:02	80m	+14 / -	ZS6WAB	-15 / -19	4	✓ Closing observed
07-16 21:00	80m	+12 / -8	IW2CAK	-13 / -	5	✓ Closing observed
07-04 21:25	80m	-13 / -	PR2EG	- / -12	3	✓ Closing fragment
06-26 20:23	80m	+15 / -18	TN8GD	-14 / -21	6	✓ Full exchange observed
06-24 08:39	10m	- / +5	F5CUN	-4 / -	2	Partial capture
06-23 21:23	40m	-4 / -	9V1DX	- / -	9	Partial capture
06-23 21:04	40m	-16 / -	D2UY	- / -	2	✓ Closing fragment
06-23 20:59	40m	-6 / -	9V1DX	- / -	6	Partial capture
06-23 20:53	40m	-11 / -	D2UY	- / -	9	Partial capture
06-21 21:48	40m	-17 / -	PY1KB	- / -	3	Partial capture
06-21 21:44	40m	-16 / -	VK6WTF	- / -	2	✓ Closing fragment
06-21 21:39	40m	-7 / -	VK5RM	- / -21	3	✓ Closing fragment
06-21 21:37	40m	-8 / -	G3WGC	- / -4	2	✓ Closing fragment
06-21 21:35	40m	-5 / -	R4FDK	-22 / 0	4	✓ Closing observed
06-21 21:34	40m	-4 / -	M0VTS/P	- / -15	2	✓ Closing fragment
06-21 21:31	40m	-3 / -1	IQ4JO	-6 / 0	5	✓ Full exchange observed
06-21 21:22	40m	-6 / -	D2UY	- / -	5	Partial capture
06-21 21:18	40m	-12 / -	SV9QWC	- / -9	5	✓ Closing fragment
06-21 21:14	40m	-17 / -9	ED7SUN	-13 / -1	9	✓ Full exchange observed
06-18 21:31	80m	+13 / -16	9V1YC	-24 / -15	6	✓ Full exchange observed
06-17 22:35	40m	-5 / -	D2UY	- / -	26	Partial capture
06-15 21:08	40m	+1 / -	D2UY	- / -	14	Partial capture
06-15 21:04	40m	-7 / -	D2UY	- / -	3	Partial capture
06-13 20:19	40m	+10 / -	D2UY	- / -	32	Partial capture
06-11 20:44	40m	-3 / -	D2UY	- / -	18	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
212830  +0 2890  9V1DX SP4GDC KO03
163545 -16 2018  T22TT SP4GDC KO03 (x7)
223600 -19 1680  KL7P SP4GDC KO03 (x4)
205515 -17 1284  <...> SP4GDC KO03 (x2)
210315 -18 1812  SP4GDC M0CKX +03

80m

UTC    dB Audio  Message
204415  -2 1382  SP4GDC YT1DDL 73
204500  +4 1382  CQ DX SP4GDC KO03
204515  +0 1382  SP4GDC E70SZ JN84
204530  +3 1382  YT1DDL SP4GDC -05
204545  -9 2409  SP4GDC R8CW/4 R+05 (x2)
204800  +6 2462  SP4GDC SP7ROH -09
204815  +1 1382  SP7ROH SP4GDC R+01
204830  +7 2462  SP4GDC SP7ROH RR73
204845  +8 1382  SP7ROH SP4GDC 73
204900  +2  600  SP4GDC PE2JMR JO33
204915  +4 1382  PE2JMR SP4GDC -04
204930  +6  600  SP4GDC PE2JMR R-06
204945  +6 1382  PE2JMR SP4GDC RR73
205000  +2  600  SP4GDC PE2JMR 73

10m

UTC    dB Audio  Message
203100  -9 1437  SP4GDC PY8ZB RR73
210830  -9 2170  SP4GDC CP7DX RR73 (x2)
203245 -21 1913  SP4GDC XQ3SK -12
083900  -1  766  SP4GDC F5CUN JN26 (x2)
084600  -5  688  SP4GDC CR7BRV RR73
203800  -8 2516  SP4GDC IV3CTT 73
211845  -4 1070  SP4GDC DG6VC JN39 (x5)
101530  -9  829  SP4GDC IT9VCE +02 (x2)

20m

UTC    dB Audio  Message
052330  -6  891  SP4GDC TI5RTZ -11
052430 +16  613  SP4GDC YO4NT +01
052815 -11 3015  SP4GDC OA1F -18 (x2)
052915  -7 2613  SP4GDC EA4HTI IM69 (x3)

Decoder S/N history by band

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