F5RTF — 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: JN29

Receiver-side FT8 activity involving F5RTF, decoded by SO8OO in southeastern Poland. 67 FT8 messages attributed to this token as transmitter, on 40m, across 7 UTC dates in the available aggregate history. Observed between 2026-07-20 and 2026-11-07.

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 67 FT8 messages attributed to F5RTF as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). Several six-hour UTC windows tied for the largest share (87%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (75%); the estimated median was -2 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-2 dB

Estimated median S/N

Bands

40m · 67

First attributed message: 2026-07-20
Last attributed message: 2026-11-07 05:55 UTC

Observed FT8 message patterns

Attributed sample: 67 messages
Active dates: 7 UTC dates
Estimated median S/N: -2 dB
Estimated 10th-90th percentile: -17 to +12 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 9, strong (≥ -8 dB) 50.

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 F5RTF in decoded directed-looking exchanges:

F5OYA/P · France HA9OA · Hungary IZ8PPI · Italy KC1QYD · United States KC1UVP · United States LY1NM · Lithuania ND9M · United States OA4ENG · Peru PV8AJ · Brazil RZ6L · European Russia UC6W · European Russia

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 F5RTF

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: JN29 · 34 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,206 km (approx.)
Last such locator decoded: 2026-11-07 05:55 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	F5RTF S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-07 05:55	40m	+3 / -	EA2EYJ/QRP	- / -12	2	Partial capture
10-30 05:40	40m	+1 / -	YV2BOM	- / -	3	Partial capture
10-24 16:49	40m	-5 / -	BG3ISK	- / -	2	Partial capture
10-24 16:44	40m	-7 / -	BG3ISK	- / -	2	Partial capture
10-24 16:35	40m	-2 / -	UC6W	- / -18	5	✓ Closing fragment
10-15 06:14	40m	+10 / -	K0SSD	- / -25	9	Partial capture
09-30 05:37	40m	-4 / -	KC1QYD	- / -8	2	✓ Closing fragment
09-30 05:34	40m	-5 / -	IZ8PPI	- / -13	2	✓ Closing fragment
09-30 05:32	40m	-5 / -	ZL2MIM	- / -17	2	Partial capture
09-11 04:44	40m	-1 / -	HJ4RUS	- / -	4	Partial capture
09-11 04:42	40m	+12 / -	F5OYA/P	-13 / +4	3	✓ Closing observed
09-11 04:41	40m	+7 / -	HA9OA	- / +5	2	✓ Closing fragment
09-11 04:39	40m	-2 / -	OA4ENG	- / -10	3	✓ Closing fragment
09-11 04:33	40m	0 / -	ND9M	- / -6	4	✓ Closing fragment
09-11 04:29	40m	-1 / -	KC1UVP	- / -14	2	✓ Closing fragment
09-11 04:25	40m	-12 / -13	PV8AJ	-12 / +2	6	✓ Full exchange observed
09-11 04:20	40m	-16 / -	LY1NM	- / +1	2	✓ Closing fragment
09-11 04:19	40m	-20 / -10	RZ6L	+12 / +1	5	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
061800 +14 2873  K0SSD F5RTF R-25
163530  -1 1217  UC6W F5RTF JN29 (x5)
164445  -2 1541  BG3ISK F5RTF JN29 (x4)
054045  -2 1728  YV2BOM F5RTF JN29 (x3)
055515  +0  639  EA2EYJ/QRP F5RTF JN29 (x2)

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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