SE4E — 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: Sweden Most frequent locator attributed to this token: JP70

Receiver-side FT8 activity involving SE4E, decoded by SO8OO in southeastern Poland. 102 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-08-29.

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 102 FT8 messages attributed to SE4E as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (69%), followed by 40 m (31%). Most decodes (64%) fell within the six-hour window 14:00-20:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (74%); the estimated median was -4 dB.

Overview

102

Messages attributed

UTC dates decoded

Active 15-min windows

-4 dB

Estimated median S/N

Bands

40m · 32 20m · 70

First attributed message: 2026-06-06
Last attributed message: 2026-08-29 13:37 UTC

Observed FT8 message patterns

Attributed sample: 102 messages
Active dates: 3 UTC dates
Estimated median S/N: -4 dB
Estimated 10th-90th percentile: -12 to +7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 23, strong (≥ -8 dB) 75.

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 SE4E in decoded directed-looking exchanges:

UA3VVA · European Russia UA4FEN · European Russia DK2M · Fed. Rep. of Germany OZ5AGJ · Denmark

Most frequent locator attributed to SE4E

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: JP70 · 33 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,249 km (approx.)
Last such locator decoded: 2026-08-29 13:35 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	SE4E S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-30 05:39	20m	- / -	UA3VVA	+12 / -	2	✓ Closing fragment
08-30 05:36	20m	- / -	UA4FEN	-5 / -	2	✓ Closing fragment
08-29 14:07	20m	- / -3	EA3DVP	+10 / -	5	Partial capture
08-29 13:39	20m	- / +1	UA4FEN	-13 / -	3	Partial capture
08-29 13:27	40m	- / -	DK2M	+7 / -	4	✓ Closing fragment
08-29 13:24	40m	-12 / -	OZ5AGJ	- / -	2	✓ Closing fragment
08-29 13:24	40m	-16 / -	OE1AVO	-2 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
133745 -15 1222  SE4E PD0LH JO22
133745 -11  804  9V1SH SE4E R JP70
133930 -13  805  SE4E UA4FEN +01 (x3)
140745  +6 2542  SE4E EA3DVP -03 (x5)
053530  +2 2069  SE4E RZ4FWA LO23
053630  -6 1711  SE4E UA4FEN +22 (x2)
053930 +12 1660  SE4E UA3VVA LO06 (x2)

40m

UTC    dB Audio  Message
132430  -2  998  SE4E OE1AVO JN88
132445 -15  998  OZ5AGJ SE4E R JP70 (x2)
132545 -16  998  OE1AVO SE4E R JP70
132645 -15  998  SQ8ECJ SE4E R JP70
132715 -17  998  CQ WW SE4E JP70
132730  +5 2666  SE4E DK2M JO73 (x4)

CW

9 CW reception events in the last 30 days.

40m: 5 events; last heard 2026-11-04 19:15 UTC
80m: 4 events; last heard 2026-11-01 16:06 UTC

Latest CW receptions

UTC	Band	kHz	S/N · 500 Hz	WPM	Listen
2026-11-04 19:15:01	40m	7028.437	10.4 dB	32.8	WebSDR ↗
2026-11-04 19:08:53	40m	7034.827	9.7 dB	31.1	WebSDR ↗
2026-11-04 19:04:52	40m	7030.036	12.7 dB	—	WebSDR ↗
2026-11-04 19:03:41	40m	7030.036	14.9 dB	33	WebSDR ↗
2026-11-01 16:06:00	80m	3513.942	13.6 dB	—	WebSDR ↗
2026-10-21 19:25:29	80m	3534.352	24.9 dB	—	WebSDR ↗
2026-10-21 19:20:07	80m	3529.881	23.8 dB	30.2	WebSDR ↗
2026-10-21 19:17:45	80m	3529.881	23.7 dB	—	WebSDR ↗
2026-10-07 19:00:12	40m	7032.860	8.8 dB	—	WebSDR ↗

CW reception history

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