S56DS — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Slovenia Most frequent locator attributed to this token: JN75

Receiver-side FT8 activity involving S56DS, decoded by SO8OO in southeastern Poland. 126 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, 10m, across 15 UTC dates in the available aggregate history. Observed between 2026-06-16 and 2026-10-21.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 126 FT8 messages attributed to S56DS as the transmitting token by decoded message structure across 15 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (72%), followed by 20 m (21%) and 60 m (4%). Several six-hour UTC windows tied for the largest share (76%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

126

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

60m · 5 40m · 91 20m · 27 10m · 3

First attributed message: 2026-06-16
Last attributed message: 2026-10-21 18:36 UTC

Observed FT8 message patterns

Attributed sample: 126 messages
Active dates: 15 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -16 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 14, moderate (-15 to -9 dB) 71, strong (≥ -8 dB) 41.

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with S56DS in decoded directed-looking exchanges:

DF3MT · Fed. Rep. of Germany ×2 R4WZ · European Russia ×2 E75C · Bosnia-Herzegovina R70OBN · European Russia 1F3SW DB0IPA · Fed. Rep. of Germany DK1HSI · Fed. Rep. of Germany DL1ASL · Fed. Rep. of Germany EX7CQ · Kyrgyzstan F4JHO · France F6FHZ · France G0RVY · England

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to S56DS

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator: JN75
SO8OO receiver locator: KN09VW
Locator-centre separation: 708 km (approx.)
Last such locator decoded: 2026-06-21 17:13 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

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	S56DS S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-21 18:51	40m	- / -9	G0RVY	-4 / -	4	✓ Closing fragment
10-21 18:50	40m	- / -15	F1PBZ	-4 / -	3	Partial capture
10-21 18:45	40m	- / 0	PA0GSP	-6 / -	2	✓ Closing fragment
10-21 18:34	40m	-7 / -	M9YDD	- / -9	5	Partial capture
10-21 18:28	40m	-10 / -	SP3RK	- / -19	2	✓ Closing fragment
10-21 18:23	40m	-13 / -	M9YDD	- / -15	9	Partial capture
10-21 18:18	40m	-10 / -	R4WZ	- / -15	4	✓ Closing fragment
10-21 18:16	40m	-11 / -	R7CA/6	- / -6	4	Partial capture
10-21 18:08	40m	-10 / -	TA2VUZ	-17 / -18	12	✓ Closing observed
10-21 18:04	40m	+4 / -8	EX7CQ	+4 / -	3	✓ Closing observed
10-21 18:03	40m	-6 / -11	M1DBB	-12 / -15	4	✓ Full exchange observed
10-15 11:35	40m	- / +2	DL1ASL	-24 / -	2	✓ Closing fragment
10-15 11:32	40m	- / -9	SP4GDW	-20 / -	2	Partial capture
10-15 11:20	40m	- / -7	PE9JAN	-14 / -	4	✓ Closing fragment
10-15 11:17	40m	- / -3	S53AK	-4 / -	7	✓ Closing fragment
10-15 10:27	40m	- / 0	SQ9SET	-7 / -	2	✓ Closing fragment
10-13 17:25	40m	+1 / -	5B4AMM	- / -	10	Partial capture
10-13 16:49	40m	-5 / +1	DF3MT	-3 / -	3	✓ Closing observed
10-12 17:55	40m	-6 / -12	F4JHO	-17 / -4	4	✓ Full exchange observed
10-12 17:51	40m	-5 / -	1F3SW	- / -25	3	✓ Closing fragment
10-12 17:38	40m	-3 / -11	OH3KRH	-2 / -11	7	✓ Full exchange observed
10-12 17:29	40m	-8 / -	F6FHZ	- / -11	2	✓ Closing fragment
10-12 17:27	40m	-8 / -12	S57AM	-1 / -15	4	✓ Full exchange observed
10-12 17:23	40m	-14 / -23	SM5TSP	-12 / 0	7	✓ Full exchange observed
10-12 17:20	40m	-13 / -	JY5IB	- / -23	4	Partial capture
10-12 17:12	40m	-2 / -	OS9T	- / -6	2	✓ Closing fragment
10-12 17:10	40m	-9 / -	M0VTS/P	- / -18	4	Partial capture
10-11 18:32	60m	-10 / -12	F5RRS	+1 / -	5	✓ Full exchange observed
10-11 18:31	60m	-9 / -18	PE1MSU	-5 / -9	6	✓ Full exchange observed
10-11 17:37	40m	-6 / -13	DK1HSI	+2 / 0	4	✓ Full exchange observed
10-11 17:34	40m	-9 / -	DB0IPA	- / +3	2	✓ Closing fragment
10-11 14:34	80m	- / +7	DO9AO	+2 / -	2	✓ Closing fragment
08-01 07:26	20m	- / -18	E75C	-17 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
183430 -10 1610  M9YDD S56DS -09 (x5)
184315  -5 1948  S56DS LX1RFJ R-10
184515  -5 1107  S56DS PA0GSP R+00 (x2)
185045  -9 2537  S56DS F1PBZ -15 (x2)
185145  -2  827  S56DS G0RVY JO01
185145  -2 2537  S56DS F1PBZ -15
185245  -7  826  S56DS G0RVY R-09 (x3)

60m

UTC    dB Audio  Message
183115  -8  721  PE1MSU S56DS -09
183130  -3  721  S56DS PE1MSU R-18
183145  -7  721  PE1MSU S56DS RR73
183200  -4  721  S56DS PE1MSU R-18
183215 -11  721  PE1MSU S56DS RR73
183230  -9  721  S56DS PE1MSU 73
183230  +0 1963  S56DS F5RRS JN36
183245  -9  721  F5RRS S56DS +16
183300  +4 1963  S56DS F5RRS R-12
183315 -12  721  F5RRS S56DS RR73
183330  -1 1964  S56DS F5RRS 73

80m

UTC    dB Audio  Message
143445  +5 1216  S56DS DO9AO R+07 (x2)

20m

UTC    dB Audio  Message
042715 -14 2467  S56DS R70OBN RR73
071615 -17 1074  S56DS IZ7NMD R-14
072400 -20 1278  F5SFT S56DS -16
072615 -17 1738  S56DS E75C R-18 (x3)

Decoder S/N history by band

Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee