SN75E — 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

Receiver-side FT8 activity involving SN75E, decoded by SO8OO in southeastern Poland. 85 FT8 messages attributed to this token as transmitter, on 80m, 10m, across 2 UTC dates in the available aggregate history. Observed between 2026-10-25 and 2026-10-30.

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 85 FT8 messages attributed to SN75E as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (73%), followed by 10 m (27%). In this small sample, the estimated median decoder S/N was -10 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

80m · 62 10m · 23

First attributed message: 2026-10-25
Last attributed message: 2026-10-30 11:36 UTC

Observed FT8 message patterns

Attributed sample: 85 messages
Active dates: 2 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -23 to 0 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 26, moderate (-15 to -9 dB) 22, strong (≥ -8 dB) 37.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with SN75E in decoded directed-looking exchanges:

RK3YWS/P · European Russia ×6 R2EA/P · European Russia ×5 II4NTTI · Italy ×5 DK8HC/P · Fed. Rep. of Germany ×2 UA9OGC/P · Asiatic Russia ×2 MJ/TA1HZ · Jersey ×2 OE1RDU/3 · Austria ×2 SP5DFK/QRP · Poland ×2 R8LCM/M · Asiatic Russia RD0L/P · Asiatic Russia PA5MB/QRP · Netherlands R2DX/3 · European Russia

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	SN75E S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-30 11:18	10m	-22 / -	<...>	-3 / -	8	✓ Closing fragment
10-25 18:43	80m	-12 / -	OE1RDU/3	-9 / -	5	✓ Closing observed
10-25 18:39	80m	-11 / -	OE1RDU/3	- / -	2	✓ Closing fragment
10-25 17:52	80m	-1 / -	MJ/TA1HZ	- / -	4	✓ Closing fragment
10-25 17:41	80m	-4 / -	RK3YWS/P	0 / -	3	✓ Closing observed
10-25 17:41	80m	-8 / -	II4NTTI	- / -	4	✓ Closing fragment
10-25 17:36	80m	-3 / -	II4NTTI	- / -	3	✓ Closing fragment
10-25 17:25	80m	-5 / -	II4NTTI	+3 / -	11	✓ Closing observed
10-25 17:15	80m	-6 / -	RK3YWS/P	+15 / -	5	✓ Closing observed
10-25 17:04	80m	-14 / -	RK3YWS/P	- / -	5	Partial capture
10-25 17:03	80m	-15 / -	SQ3EWA	- / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
111200 -20 1625  CQ SN75E (x6)
111845 -15 1860  SN75E <...> RR73
112030 -22 1351  <...> SN75E (x4)
112315  +9  753  SN75E <...> RR73
112445 -22 1351  <...> SN75E (x3)

80m

UTC    dB Audio  Message
184100  -1 1600  <SN75E> DL5DQZ JO61
184200  +7 1600  SN75E SP5DFK/QRP 73
184315 -10 1867  OE1RDU/3 SN75E RR73
184430  -8 1867  SN75E OE1RDU/3 RR73
184445  -8 1867  OE1RDU/3 SN75E 73
184545 -15 1867  CQ SN75E
184645 -17 1868  OE1RDU/3 SN75E RR73
184700 -10 1867  SN75E OE1RDU/3 73
184700  -5 1936  <SN75E> DO1MDO JO50
184700  +7  295  <SN75E> DL5JMN JO60
184915 -14 1866  OE1RDU/3 SN75E RR73
184930  +8 1537  SN75E MJ/TA1HZ 73
184930  +0 2302  <SN75E> DO9BAU JO62
184930  -6 1937  <SN75E> DO1MDO JO50
185030  +5 2302  SN75E RK3YWS/P 73

40m

UTC    dB Audio  Message
180700  +4 2489  SN75E UA9OGC/P RR73
180830  -8  493  SN75E DK8HC/P RR73
181030 -16 1883  SN75E UA9OGC/P 73
181430  -7 1735  SN75E RD0L/P 73
181700  -1 1546  SN75E R8LCM/M 73
181930 -11 1642  SN75E R2EA/P 73
182200 -13 1719  SN75E DK8HC/P 73

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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