KF0JNO — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: EM18

Receiver-side FT8 activity involving KF0JNO, decoded by SO8OO in southeastern Poland. 10 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-08-26.

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 10 FT8 messages attributed to KF0JNO as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). 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

20m · 10

First attributed message: 2026-08-26
Last attributed message: 2026-08-26 04:11 UTC

Observed FT8 message patterns

Attributed sample: 10 messages
Active dates: 1 UTC dates
Estimated median S/N: -10 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 8, strong (≥ -8 dB) 2.

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 KF0JNO in decoded directed-looking exchanges:

DL3MIB · Fed. Rep. of Germany EA4IDN · Spain IK2WSA · Italy LZ3RG · Bulgaria N6MTX · United States R3KCW · European Russia R7WA · European Russia

Most frequent locator attributed to KF0JNO

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: EM18 · 3 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,504 km (approx.)
Last such locator decoded: 2026-08-26 04:10 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	KF0JNO S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-28 22:32	20m	- / -	I1RJP	+10 / -	3	Partial capture
08-26 04:29	20m	- / -16	R2DRE	-4 / -	2	Partial capture
08-26 04:28	20m	- / -10	EA4IDN	-5 / -	3	✓ Closing fragment
08-26 04:10	20m	-12 / -	IK2WSA	- / -17	3	✓ Closing fragment
08-26 04:05	20m	-10 / -15	R3KCW	-15 / -	4	✓ Closing observed
08-26 04:01	20m	- / -	RA6FSV	-1 / -	5	Partial capture
08-26 04:00	20m	- / -	RU9W	-14 / -	2	Partial capture
08-26 03:59	20m	-12 / -	N6MTX	- / -16	2	✓ Closing fragment
08-26 03:59	20m	- / -12	R7WA	-6 / -	7	✓ Closing fragment
08-26 03:57	20m	- / -	UA4FET	+3 / -	2	Partial capture
08-24 06:18	20m	- / -	I1RJP	+3 / -	3	Partial capture
08-24 06:15	20m	- / -	EA3E	+3 / -	6	Partial capture
08-24 06:13	20m	- / -17	DL3MIB	-12 / -	5	✓ Closing fragment
08-23 02:07	20m	- / -16	DL5DQZ	-7 / -	5	Partial capture
07-08 05:04	40m	- / -13	F4DIA	-15 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
040715  -8 2631  SQ8RMX KF0JNO -06
040900 -10 2628  KF0JNO ZL1RPC RF73
040900  -5 1893  KF0JNO R4FDW -15
040945  -8 2632  US5UC KF0JNO EM18
041030 -10 2632  IK2WSA KF0JNO EM18 (x3)
042815  -8 1690  KF0JNO EA4IDN -10 (x3)
042945  -2 1422  KF0JNO R2DRE -16 (x2)
223230 +10  365  KF0JNO I1RJP JN45 (x3)

40m

UTC    dB Audio  Message
050400 -12 1094  KF0JNO F4DIA -13 (x3)
050830 -18 1045  KF0JNO F5PBG IN78

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee