SP1ZS — 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: Poland Most frequent locator attributed to this token: JO73

Receiver-side FT8 activity involving SP1ZS, decoded by SO8OO in southeastern Poland. 98 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 20m, across 13 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-11-05.

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 98 FT8 messages attributed to SP1ZS as the transmitting token by decoded message structure across 13 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (46%), followed by 80 m (32%) and 60 m (18%). Most decodes (74%) fell within the six-hour window 01:00-07:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-12 dB

Estimated median S/N

Bands

160m · 4 80m · 31 60m · 18 20m · 45

First attributed message: 2026-06-12
Last attributed message: 2026-11-05 05:30 UTC

Observed FT8 message patterns

Attributed sample: 98 messages
Active dates: 13 UTC dates
Estimated median S/N: -12 dB
Estimated 10th-90th percentile: -20 to -2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 30, moderate (-15 to -9 dB) 38, strong (≥ -8 dB) 30.

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 SP1ZS in decoded directed-looking exchanges:

OM2WW · Slovak Republic ×2 EA8UP · Canary Islands F4BYF · France DL1HDL · Fed. Rep. of Germany LA6YEA · Norway LY1G · Lithuania OK1DXR · Czech Republic OK1FAN · Czech Republic PI4DX · Netherlands EC5M · Spain GJ0KYZ · Jersey R4FDW · European Russia

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 SP1ZS

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: JO73 · 26 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 613 km (approx.)
Last such locator decoded: 2026-11-03 05:39 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	SP1ZS S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-05 05:29	60m	-16 / -	LX1TI	+8 / -	3	✓ Closing observed
11-05 05:27	60m	- / -	DF4WQ	-7 / -	7	Partial capture
11-05 05:25	60m	- / -2	OK1BN	+2 / -	3	✓ Closing fragment
11-05 05:23	60m	-22 / -	EA5BM	- / -8	2	✓ Closing fragment
11-05 05:21	60m	- / -	SP2EWQ	+4 / -	3	Partial capture
11-05 05:20	60m	- / +8	G0BLB	+9 / -	4	✓ Closing fragment
11-05 05:19	60m	-18 / -2	LZ911TD	-10 / -3	4	Partial capture
11-04 05:48	80m	- / -	DO3VE	+6 / -	2	Partial capture
11-04 05:45	80m	-11 / -	MI0NWA	- / -17	4	✓ Closing fragment
10-31 05:49	160m	- / -22	DM9EE	-15 / -	2	Partial capture
10-31 05:42	160m	- / -8	OK1DXR	-7 / -	4	✓ Closing fragment
10-31 05:41	160m	- / -19	LY1G	+12 / -	2	✓ Closing fragment
10-31 05:34	160m	- / -12	OK1FAN	-2 / -	3	✓ Closing fragment
10-31 05:27	160m	- / -3	SM5CBM	0 / -	2	Partial capture
10-28 05:38	160m	- / -11	LA6YEA	+14 / -	3	✓ Closing fragment
10-27 21:16	160m	- / -25	DK7ZT	-12 / -	5	Partial capture
10-19 04:44	160m	- / -19	PI4DX	+10 / -	2	✓ Closing fragment
10-17 18:38	160m	- / -21	OM2WW	+3 / -	4	✓ Closing fragment
10-16 11:15	10m	- / -8	EA5JKM	-18 / -	4	Partial capture
10-09 04:26	60m	- / -	EA1IOK	0 / -	5	Partial capture
09-13 18:05	60m	- / -	HF5A	+11 / -	2	Partial capture
09-13 18:03	60m	-13 / -	LB6LK	-11 / -5	6	✓ Full exchange observed
09-13 18:00	60m	-6 / -	ON6AA	+5 / +2	4	✓ Full exchange observed
09-13 17:59	60m	-17 / -	YO4NT	- / -3	3	✓ Closing fragment
08-31 07:53	20m	- / -9	GJ0KYZ	+6 / -	2	✓ Closing fragment
08-27 07:09	20m	- / -13	EC5M	-2 / -	2	✓ Closing fragment
08-26 04:34	20m	- / -11	ZL1RPC	-1 / -	3	✓ Closing fragment
08-25 05:31	20m	- / -	RZ4FWA	0 / -	4	Partial capture
08-25 04:35	20m	- / -5	R4FDW	-8 / -	3	✓ Closing fragment
08-23 04:51	20m	- / -9	UB4CJS	+6 / -	2	✓ Closing fragment
08-22 06:26	20m	- / 0	PF1B	-12 / -	2	Partial capture
08-21 06:53	20m	-7 / -	YO6LM	- / -18	3	✓ Closing fragment
08-21 06:50	20m	-6 / -	VK3LV	- / -16	6	✓ Closing fragment
08-21 06:46	20m	-8 / -	VK2USH	- / -19	6	✓ Closing fragment
08-21 06:43	20m	0 / -	VK3YW	- / -8	6	✓ Closing fragment
08-21 06:41	20m	-1 / -	VK2USH	- / -12	3	Partial capture
08-11 18:49	10m	- / +5	EA8UP	-7 / -	2	✓ Closing fragment
08-10 04:02	20m	- / -	OD5KU	+5 / -	3	Partial capture
08-09 08:06	10m	- / +5	F4BYF	-10 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
052430 -20 1687  EA5BM SP1ZS RR73
052515  +1 1600  SP1ZS OK1BN JO70 (x3)
052715  -7 2033  SP1ZS DF4WQ JN39 (x5)
052930 -17  897  LX1TI SP1ZS R+15
052945  -7 2033  SP1ZS DF4WQ JN39 (x2)
053030 -16  897  LX1TI SP1ZS RR73
053045  +7  897  SP1ZS SP2EWQ JO93
053115  +8  897  SP1ZS LX1TI 73

80m

UTC    dB Audio  Message
054545 -14  732  MI0NWA SP1ZS -17 (x4)
054800  +5  820  SP1ZS DO3VE JO52 (x2)

160m

UTC    dB Audio  Message
053915 +15  405  SP1ZS LA6YEA RR73 (x2)
052700  -1 1238  SP1ZS SM5CBM -03 (x2)
053415  +4  602  SP1ZS OK1FAN -12 (x3)
054130 +11 1217  SP1ZS LY1G -19 (x2)
054230 -12 1301  SP1ZS OK1DXR JO60 (x4)
054930 -21  686  SP1ZS DM9EE -22 (x2)

10m

UTC    dB Audio  Message
080600 -10  833  SP1ZS F4BYF +05 (x2)
184930  -8 1213  SP1ZS EA8UP +05 (x2)
111545 -14 1738  SP1ZS EA5JKM -08 (x4)

20m

UTC    dB Audio  Message
053145  -2 2068  SP1ZS RZ4FWA LO23 (x3)
043400  -1 3007  SP1ZS ZL1RPC -11 (x3)
045445  -2  635  SP1ZS ZL2BX 73
065000  -9 2831  SP1ZS RD3FY KO85 (x2)
070900  -2  826  SP1ZS EC5M R-13 (x2)
070745 -19 1071  SP1ZS IK0XBU/P R-10
070745  -1 2232  SP1ZS IK4JPP JN54
075315  +7  340  SP1ZS GJ0KYZ R-09 (x2)

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

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