SV1SFZ — 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: Greece Most frequent locator attributed to this token: KM17

Receiver-side FT8 activity involving SV1SFZ, decoded by SO8OO in southeastern Poland. 40 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, across 20 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-10-09.

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 40 FT8 messages attributed to SV1SFZ as the transmitting token by decoded message structure across 20 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (68%), followed by 20 m (30%) and 60 m (3%). Most decodes (73%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (68%); the estimated median was -19 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-19 dB

Estimated median S/N

Bands

60m · 1 40m · 27 20m · 12

First attributed message: 2026-06-11
Last attributed message: 2026-10-09 21:30 UTC

Observed FT8 message patterns

Attributed sample: 40 messages
Active dates: 20 UTC dates
Estimated median S/N: -19 dB
Estimated 10th-90th percentile: -23 to -6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 27, moderate (-15 to -9 dB) 7, strong (≥ -8 dB) 6.

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 SV1SFZ in decoded directed-looking exchanges:

II5GG · Italy ×4 IQ2AAH · Italy ×3 IZ2WYA · Italy ×2 IQ3TR · Italy ×2 IR8PR · Italy ×2 IS0LLL · Sardinia ×2 IT9VCE · Sicily II9MWE · Sicily IQ9SR · Sicily DC2SF · Fed. Rep. of Germany DK2FM · Fed. Rep. of Germany DM8ITZ · Fed. Rep. of Germany

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 SV1SFZ

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: KM17 · 26 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,386 km (approx.)
Last such locator decoded: 2026-10-09 21:30 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	SV1SFZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-22 05:21	40m	- / -2	IZ8XXE	-14 / -	2	✓ Closing fragment
10-22 05:18	40m	- / -5	P4/WE9V	+8 / -	2	Partial capture
10-22 05:03	40m	- / -5	P4/WE9V	+9 / -	3	Partial capture
10-20 05:34	40m	- / -5	IZ2WYA	-3 / -	2	✓ Closing fragment
10-18 05:29	40m	- / -6	IU7IPX	-18 / -	2	✓ Closing fragment
10-18 04:34	40m	- / -16	M9MRX	-8 / -	3	✓ Closing fragment
10-17 16:02	40m	- / -10	IQ3TR	-11 / -	3	✓ Closing fragment
10-17 15:55	40m	- / -11	IQ4FE	-8 / -	2	✓ Closing fragment
10-15 04:50	40m	- / -18	II5GG	-6 / -	3	Partial capture
10-11 06:09	40m	- / -	IK4WLA	-6 / -	2	Partial capture
10-11 06:09	40m	- / -13	OS4K	-24 / -	2	Partial capture
10-10 17:53	40m	- / -19	II5GG	-5 / -	4	Partial capture
10-09 21:42	40m	- / -11	DK2FM	+2 / -	7	✓ Closing fragment
10-09 21:42	40m	- / +6	IW2CVL	-14 / -	3	✓ Closing fragment
10-09 21:37	40m	- / -	DL2AMM	-4 / -	3	Partial capture
10-09 21:32	40m	- / -	DL2AMM	-5 / -	4	Partial capture
10-09 21:16	40m	- / -11	IS0LLL	-6 / -	3	✓ Closing fragment
10-09 20:44	40m	- / -	IS0LLL	-4 / -	3	Partial capture
10-09 20:36	40m	- / -14	IS0LLL	-5 / -	3	✓ Closing fragment
10-09 19:21	40m	- / -5	IQ2AAH	-2 / -	2	✓ Closing fragment
10-09 18:44	40m	- / -11	II5GG	+1 / -	4	✓ Closing fragment
10-07 20:13	40m	-22 / -	IQ2AAH	- / -9	2	Partial capture
10-07 20:07	40m	-16 / -	SQ2RAD	- / -	2	Partial capture
10-07 19:02	40m	- / -10	IZ8XQC	-6 / -	2	✓ Closing fragment
10-07 18:17	40m	- / -7	IN3EZU	-11 / -	3	✓ Closing fragment
10-06 20:20	40m	- / -9	ON4ASV	+10 / -	4	✓ Closing fragment
10-06 19:29	40m	- / -11	II5GG	-2 / -	2	✓ Closing fragment
10-06 18:59	40m	- / -12	IR8PR	-10 / -	2	✓ Closing fragment
10-05 18:57	40m	- / -17	II5GG	+1 / -	2	✓ Closing fragment
10-05 18:02	40m	- / -13	IQ0YA	-6 / -	3	Partial capture
10-05 17:54	40m	- / -12	IQ8DO	-6 / -	2	✓ Closing fragment
10-04 06:09	40m	- / -7	IZ8GUU	-18 / -	2	✓ Closing fragment
10-04 04:40	40m	- / -17	II5GG	-4 / -	2	✓ Closing fragment
10-03 20:31	40m	- / -9	IQ4JO	+4 / -	3	✓ Closing fragment
10-03 04:14	40m	- / -10	II5GG	-6 / -	2	Partial capture
10-02 19:46	40m	- / -19	RZ4FWA	-19 / -	4	Partial capture
10-02 19:44	40m	- / -10	EG1FAP	-10 / -	2	✓ Closing fragment
09-15 20:37	40m	-22 / -11	G3YPP/P	-4 / -	2	Partial capture
09-13 04:31	40m	- / -8	EA7R	-4 / -	2	✓ Closing fragment
09-13 04:18	40m	- / -2	EH1PDA	-6 / -	2	✓ Closing fragment
09-13 04:04	40m	- / -10	EH3ST	0 / -	2	✓ Closing fragment
09-13 03:56	40m	-20 / -	J88IH	- / -	3	Partial capture
09-06 20:08	40m	-18 / -20	IZ5IIN	-4 / -2	4	✓ Full exchange observed
09-03 05:13	40m	- / -9	IK2UCL	-7 / -	2	✓ Closing fragment
09-03 04:57	40m	- / -9	II7MGBR	-13 / -	2	Partial capture
09-01 05:39	40m	- / -10	II7MGBA	-12 / -	3	Partial capture
08-31 19:09	40m	- / -10	II7MGFG	-4 / -	2	Partial capture
08-15 10:13	10m	- / -13	IT9VCE	-8 / -	3	✓ Closing fragment
08-15 10:09	10m	- / -11	<...>	-20 / -	2	Partial capture
08-11 18:09	20m	- / -4	IZ2WYA	-16 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
043445  -9 1140  SV1SFZ M9MRX -16 (x2)
052915 -20 1938  SV1SFZ IU7IPX -06 (x2)
064230 -19 1844  SV1SFZ RA4ADF/P -21
053430  -2 2903  SV1SFZ IZ2WYA -05 (x2)
050300 +10  610  SV1SFZ P4/WE9V -05 (x5)
051930  +8  610  SV1SFZ RR73; G0ODR <...> -10
052100 -11 2426  SV1SFZ IZ8XXE -02 (x2)

60m

UTC    dB Audio  Message
204645  -3 1247  SV1SFZ SP7JC JO91
190945 -21 2056  IZ2WYA SV1SFZ R-12

20m

UTC    dB Audio  Message
203030 -19 1754  SV1SFZ IQ9SR -17 (x4)
175045  -6 2759  IZ2WYA SV1SFZ KM17 (x2)
180430  -6  574  SV1SFZ 4U1GSC +00
180800 -12 2123  SV1SFZ OZ2SPACE -14
071615 -18 1980  SV1SFZ IT9ECY -14
175100 -17 2452  SV1SFZ IZ2WYA -13 (x4)
181100  -9 1788  SV1SFZ EG5MYC -13
050245  -7  491  SV1SFZ 5Z4VJ KI88

10m

UTC    dB Audio  Message
100915 -20 2094  SV1SFZ <...> -11 (x2)
101330 -11  829  SV1SFZ IT9VCE -13 (x3)

80m

UTC    dB Audio  Message
200800  +7 1570  SV1SFZ 9A4ZM JN86 (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

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