S56ZIV — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Slovenia Locator transmitted in a decoded message: JN75

Receiver-side FT8 activity involving S56ZIV, decoded by SO8OO in southeastern Poland. 489 related FT8 messages, 64 CQ messages, observed on 80m, 20m, across 21 UTC dates. Heard between 2026-05-25 and 2026-08-21.

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

489

Related messages

CQ messages

UTC dates heard

-2 dB

Mean decoder S/N

Bands

80m 20m

First seen: 2026-05-25
Last seen: 2026-08-21 15:28 UTC

Frequent QSO partners observed at SO8OO

Stations S56ZIV worked most often, as logged from our receiver:

DO5OT · Fed. Rep. of Germany ×2 DO9POL · Fed. Rep. of Germany ×2 DL1HDL · Fed. Rep. of Germany SQ6MTB · Poland DO2GRH · Fed. Rep. of Germany HA8RC · Hungary UR3LM · Ukraine OK1HRP/P · Czech Republic DO7RMA · Fed. Rep. of Germany DK2BJ · Fed. Rep. of Germany DF4NR · Fed. Rep. of Germany IV3FSG · Italy

Activity Heatmap

Locator transmitted by S56ZIV

Approximate centre of JN75, decoded 2026-08-21 17:28 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	S56ZIV S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-21 17:25	20m	-10 / -	CR7BRV	- / -	2	Partial capture
08-07 21:52	80m	-11 / -12	OH5KNL	-2 / -	3	✓ Closing observed
08-07 21:49	80m	-12 / -12	DL2VEL	-8 / 0	4	✓ Full exchange observed
08-07 21:47	80m	-10 / -	DK6WH	- / -13	2	✓ Closing fragment
08-07 21:43	80m	-2 / -18	HB9XBY	-6 / -2	5	✓ Full exchange observed
08-07 21:43	80m	-8 / -5	SQ4FDK	+9 / -	5	✓ Full exchange observed
08-07 21:37	80m	- / -20	DD8BA	+1 / -	5	✓ Closing fragment
08-07 21:37	80m	-10 / -14	F4AGZ	-20 / -7	5	✓ Full exchange observed
08-07 21:37	80m	-8 / -	OH2DOF	-23 / -16	5	✓ Closing observed
08-07 21:34	80m	-15 / -	SP6FME	+10 / +1	3	✓ Closing observed
08-07 21:33	80m	-6 / -	OH3CD	-22 / -9	3	✓ Closing observed
08-07 21:29	80m	-6 / +1	9A3AUH	-1 / +2	5	✓ Full exchange observed
08-07 21:29	80m	-12 / -	SP6FME	+14 / -	2	Partial capture
08-07 21:28	80m	-5 / -11	YO1BRANCUSI	-4 / +1	3	Partial capture
08-07 21:25	80m	-8 / -19	EW8AAC	-8 / -8	5	✓ Full exchange observed
08-06 21:29	80m	-6 / -1	YU7AS	+6 / -	3	✓ Closing observed
08-06 21:26	80m	-1 / -15	DM8ET	-9 / -5	5	✓ Full exchange observed
08-06 21:26	80m	-3 / -15	SV9MBH	-19 / -12	5	✓ Full exchange observed
08-06 21:24	80m	-3 / -	R7DX	+5 / -1	5	✓ Closing observed
08-06 21:22	80m	-4 / -11	DO1OAS	-7 / -12	4	✓ Full exchange observed
08-06 21:20	80m	-2 / -1	DG3EAJ	-16 / -9	5	✓ Full exchange observed
08-06 21:17	80m	-2 / -2	DK5WL	-12 / -4	5	✓ Full exchange observed
08-06 21:15	80m	-2 / -13	DO2GRH	-1 / -4	6	✓ Full exchange observed
08-06 21:14	80m	-4 / -6	DO5OT	+10 / -	4	✓ Closing observed
08-06 21:10	80m	-6 / -12	SP9WAZ	+4 / -7	4	✓ Full exchange observed
08-06 21:07	80m	-10 / -	RW9JZ	- / -	3	Partial capture
08-06 21:05	80m	- / -6	DH2RL	-5 / -	5	✓ Closing fragment
08-06 21:04	80m	-11 / -	ON5MEV	-18 / -	2	✓ Closing observed
08-06 21:01	80m	+2 / -16	Z3123KR	-10 / -6	2	Partial capture
08-06 20:54	80m	-7 / -	TF4M	- / -18	3	✓ Closing fragment
08-06 20:52	80m	-8 / -9	<...>	-6 / -6	2	Partial capture
08-06 20:45	80m	-13 / -	DF1IH	-11 / -3	3	✓ Closing observed
08-06 20:42	80m	-6 / -12	DK4RH	-10 / -6	4	✓ Full exchange observed
08-06 20:40	80m	-2 / -5	Z62NS	+6 / -3	5	✓ Full exchange observed
08-06 20:36	80m	-10 / -	ON5MEV	- / -	2	Partial capture
08-04 20:57	80m	-6 / +9	HB10GBT	+3 / +3	2	Partial capture
08-04 19:06	80m	-12 / -4	F1PBZ	-4 / +1	4	✓ Full exchange observed
08-04 19:02	80m	-1 / -8	DO7LIA	+1 / -5	4	✓ Full exchange observed
08-04 18:52	80m	-16 / -14	UR3LM	+9 / -5	5	✓ Full exchange observed
08-04 18:50	80m	-11 / +3	HA8RC	+5 / +2	5	✓ Full exchange observed
07-22 21:22	80m	-10 / -13	DO4DJ	-13 / -	6	✓ Closing observed
07-22 21:21	80m	-9 / -16	F4CYH	-8 / -3	6	✓ Full exchange observed
07-22 21:20	80m	-5 / -16	RC6OD	+6 / -1	5	✓ Full exchange observed
07-22 21:18	80m	-2 / +1	SP2GJI	+2 / +2	5	✓ Full exchange observed
07-22 21:16	80m	-2 / +5	SP7AAO	+22 / +2	5	✓ Full exchange observed
07-22 21:14	80m	-8 / +2	OE/DO1BEN	-11 / +3	3	Partial capture
07-22 21:11	80m	-6 / -	DL4KSD	-2 / -1	4	Partial capture
07-22 21:10	80m	-4 / -	PI4DX	- / -	3	Partial capture
07-22 21:06	80m	-5 / -	DO5PY	- / -6	4	✓ Closing fragment
07-22 21:02	80m	0 / -	DM6OAC	- / -2	5	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
211215 -15 1697  S56ZIV EA5DB -15
152215 -19 2327  DK8RE S56ZIV JN75 (x2)
152300 -20 2327  S56ZIV DK8RE RR73
152315 -15 2327  DK8RE S56ZIV 73
152715 -10 1830  S56ZIV LA8ENA +00
152730 -24 1829  LA8ENA S56ZIV R-03
152745  -9 1830  S56ZIV LA8ENA RR73
152845  +2  597  S56ZIV G0RVY -11 (x2)
212145 -16 2475  S56ZIV DL1EBW -06
172515  -6  594  CR7BRV S56ZIV JN75 (x2)
172715  -3 2496  CQ S56ZIV JN75 (x2)

80m

UTC    dB Audio  Message
214430 +11  666  S56ZIV SQ4FDK -05
214445  -1  746  HB9XBY S56ZIV RR73
214530  +7  666  S56ZIV SQ4FDK R-04
214545  -5  666  SQ4FDK S56ZIV RR73
214600 +10  666  S56ZIV SQ4FDK 73
214745 -10 1142  DK6WH S56ZIV R-13 (x2)
214900 -12 1497  DL2VEL S56ZIV JN75
214915  -7 1497  S56ZIV DL2VEL -12
214930 -13 1497  DL2VEL S56ZIV R+00
214945  -8 1497  S56ZIV DL2VEL RR73
215230 -11 1689  OH5KNL S56ZIV JN75
215245  -1 1689  S56ZIV OH5KNL -12 (x2)
215545  -3  379  DK0ACI S56ZIV 73

Decoder S/N history by band

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