OK2SZ — 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: Czech Republic Most frequent locator attributed to this token: JN89

Receiver-side FT8 activity involving OK2SZ, decoded by SO8OO in southeastern Poland. 55 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 3 UTC dates in the available aggregate history. Observed between 2026-09-28 and 2026-10-04.

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 55 FT8 messages attributed to OK2SZ as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (51%), followed by 160 m (27%) and 80 m (22%). Most decodes (100%) fell within the six-hour window 12:00-18:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-16 dB

Estimated median S/N

Bands

160m · 15 80m · 12 40m · 28

First attributed message: 2026-09-28
Last attributed message: 2026-10-04 17:44 UTC

Observed FT8 message patterns

Attributed sample: 55 messages
Active dates: 3 UTC dates
Estimated median S/N: -16 dB
Estimated 10th-90th percentile: -19 to +5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 29, moderate (-15 to -9 dB) 13, strong (≥ -8 dB) 13.

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 OK2SZ in decoded directed-looking exchanges:

F4FSY · France ZS6MGM · South Africa IU8WRA · Italy 9A1CCB · Croatia DB8BT · Fed. Rep. of Germany DF9DL · Fed. Rep. of Germany DL1UDO · Fed. Rep. of Germany F1PBZ · France HB9JOE · Switzerland IU5HIU · Italy IU8RFW · Italy OK1MAT · Czech Republic

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 OK2SZ

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: JN89 · 25 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 348 km (approx.)
Last such locator decoded: 2026-10-04 17:44 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	OK2SZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-04 17:43	160m	-12 / -	LZ2IP	- / -	2	Partial capture
10-03 19:37	40m	- / -6	HB9JOE	-4 / -	2	✓ Closing fragment
10-03 19:34	40m	- / -7	DL1UDO	-9 / -	3	✓ Closing fragment
10-03 19:27	40m	- / -11	G4HUE	-12 / -	2	Partial capture
09-30 16:57	80m	0 / -1	DK6WS	-6 / -13	7	✓ Full exchange observed
09-30 16:57	80m	-2 / -	ON4MGV	- / -16	2	✓ Closing fragment
09-30 16:46	40m	- / -2	DL8ATI	-7 / -	3	Partial capture
09-28 16:07	80m	+7 / -16	UA4FKT	+4 / -10	8	✓ Full exchange observed
09-28 16:06	80m	+6 / -14	IQ4JO	+1 / -8	5	✓ Full exchange observed
09-28 13:21	40m	- / -6	9A1CCB	-9 / -	4	✓ Closing fragment
09-28 13:15	40m	-17 / +1	PE9JAN	-12 / -6	5	✓ Full exchange observed
09-28 13:13	40m	-18 / -	LZ936BA	- / -	2	Partial capture
09-28 13:11	40m	-18 / +6	DB8BT	-20 / -12	4	✓ Full exchange observed
09-28 13:11	40m	-17 / -	DG3DAF	-23 / +2	4	Partial capture
09-28 13:09	40m	-18 / -19	DF9DL	-23 / -11	3	✓ Full exchange observed
09-28 13:07	40m	-16 / -	OK1MAT	- / -22	3	✓ Closing fragment
09-28 13:01	40m	-17 / -7	SP3GHC	-16 / -8	5	✓ Full exchange observed
09-28 13:00	40m	-18 / -	SQ5RP	- / -16	2	✓ Closing fragment
09-28 12:58	40m	-20 / -11	F1PBZ	-15 / -11	3	✓ Full exchange observed
08-30 16:38	20m	- / -8	DB1EF	-14 / -	2	Partial capture
08-30 16:37	20m	- / -	PD0PWH	0 / -	3	Partial capture
08-30 13:44	20m	- / -	F5OYA/P	-15 / -	5	Partial capture
08-30 13:17	20m	- / -18	IU8WRA	-4 / -	4	✓ Closing fragment
08-30 13:15	20m	- / -	PA2AMJ	-8 / -	3	Partial capture
08-30 12:47	10m	- / -2	F4FSY	-19 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
173645 -15  870  CQ OK2SZ JN89 (x12)
174345 -10 1244  LZ2IP OK2SZ JN89 (x2)
174445 -12 1244  CQ OK2SZ JN89

40m

UTC    dB Audio  Message
164515 -16 2156  CQ OK2SZ JN89
164600 -15 2155  OK2SZ DL8ATI JO50 (x2)
164645 -18 2156  EA7GNO OK2SZ JN89
164700  -5 2155  OK2SZ DL8ATI R-02
190800 -10 1237  OK2SZ IU8RFW 73
191100 -13 2137  OK2SZ ON7EMS JO20
192715 -11 1762  OK2SZ G4HUE IO92 (x2)
193415 -12 2253  OK2SZ DL1UDO R-07 (x3)
193715  -2 2134  OK2SZ HB9JOE R-06 (x2)
195445  -1 2753  OK2SZ IU5HIU 73

80m

UTC    dB Audio  Message
160845  +4 1056  OK2SZ UA4FKT R-16
160900  +9 1057  UA4FKT OK2SZ RR73
160915  +4 1056  OK2SZ UA4FKT R-16
160930  +5 1057  UA4FKT OK2SZ RR73
160945  +4 1056  OK2SZ UA4FKT 73
165645  +5 2022  CQ OK2SZ JN89                         a1
165715  -6 2022  ON4MGV OK2SZ -16
165730  -4 1206  OK2SZ DK6WS -01
165745  +2 2022  ON4MGV OK2SZ RR73
165800  -8 1206  OK2SZ DK6WS -01 (x2)
165845  -4 2021  DK6WS OK2SZ R-13
165900  -1 1206  OK2SZ DK6WS RR73
165915  +3 2022  DK6WS OK2SZ R-13 (x2)

10m

UTC    dB Audio  Message
124730 -21 1941  OK2SZ F4FSY -02 (x2)
152015 -11  765  OK2SZ ZS6MGM RR73

20m

UTC    dB Audio  Message
131700  -5  929  OK2SZ IU8WRA JM89 (x4)
134415 -14 1911  OK2SZ F5OYA/P JN13 (x6)
163730  +5 1141  OK2SZ PD0PWH JO21 (x2)
163800 -11 1564  OK2SZ DB1EF R-08
163830  -8 1141  OK2SZ PD0PWH JO21
163830 -18 1564  OK2SZ DB1EF R-08

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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