F5NJF — 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: France Most frequent locator attributed to this token: IN96

Receiver-side FT8 activity involving F5NJF, decoded by SO8OO in southeastern Poland. 8 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-07-29 and 2026-10-26.

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 8 FT8 messages attributed to F5NJF as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (50%), followed by 40 m (38%) and 20 m (13%). In this small sample, the estimated median decoder S/N was -16 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-16 dB

Estimated median S/N

Bands

80m · 4 40m · 3 20m · 1

First attributed message: 2026-07-29
Last attributed message: 2026-10-26 20:23 UTC

Observed FT8 message patterns

Attributed sample: 8 messages
Active dates: 3 UTC dates
Estimated median S/N: -16 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 0.

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 F5NJF in decoded directed-looking exchanges:

DJ2MS · Fed. Rep. of Germany G0FHT · England G4IFX · England 2W0YOX · Wales

Most frequent locator attributed to F5NJF

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: IN96 · 4 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,724 km (approx.)
Last such locator decoded: 2026-10-26 20:23 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	F5NJF S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-26 20:24	80m	- / -	DK7UY	+8 / -	2	Partial capture
10-26 20:24	80m	- / -	EA1IOK	-6 / -	4	Partial capture
10-26 20:23	80m	- / -20	YO4NF	+14 / -	2	Partial capture
10-26 20:21	80m	-14 / -	F6BHK	- / -5	2	Partial capture
10-26 20:19	80m	- / -10	2W0YOX	+10 / -	2	✓ Closing fragment
10-24 11:19	40m	- / -13	DH1NGL	-17 / -	6	Partial capture
10-24 11:18	40m	- / -15	F1PBZ	-9 / -	4	Partial capture
10-22 15:15	40m	- / +1	G4IFX	+2 / -	4	✓ Closing fragment
10-22 15:12	40m	- / -	9A4ZM	-4 / -	2	Partial capture
10-22 15:11	40m	- / -	PD0LBY	-14 / -	4	Partial capture
10-22 15:10	40m	-17 / -4	DJ2MS	-11 / -	4	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
201930  +8 3004  F5NJF 2W0YOX -10 (x2)
202145 -13 3004  F6BHK F5NJF -05 (x2)
202315  -9 3004  CQ F5NJF IN96
202330 +14 3004  F5NJF YO4NF -20
202345 -11 3004  CQ F5NJF IN96
202400 +15 3004  F5NJF YO4NF -22
202400  -2 1049  F5NJF EA1IOK IN62 (x2)
202430  +8 3004  F5NJF DK7UY JO44
202500  -8 1049  F5NJF EA1IOK IN62
202500  +7 3004  F5NJF DK7UY JO44
202530  -6 1050  F5NJF EA1IOK IN62

40m

UTC    dB Audio  Message
151530  -1 2639  F5NJF G4IFX +01 (x4)
111645 -17 1124  F5NJF PD1ACS JO32
111815  -6 2542  F5NJF F1PBZ -15 (x3)
111915 -12 1654  F5NJF DH1NGL -13
111945 -11 2542  F5NJF F1PBZ -15
111945 -18 1654  F5NJF DH1NGL -13 (x5)

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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