KB4OIF — 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: United States Most frequent locator attributed to this token: EM60

Receiver-side FT8 activity involving KB4OIF, 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 2026-08-22.

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 KB4OIF 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 -6 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-6 dB

Estimated median S/N

Bands

20m · 10

First attributed message: 2026-08-22
Last attributed message: 2026-08-22 23:40 UTC

Observed FT8 message patterns

Attributed sample: 10 messages
Active dates: 1 UTC dates
Estimated median S/N: -6 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 1, strong (≥ -8 dB) 8.

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 KB4OIF in decoded directed-looking exchanges:

5Z4VJ · Kenya 9J2FI · Zambia DL1UDO · Fed. Rep. of Germany DL3MIB · Fed. Rep. of Germany E75C · Bosnia-Herzegovina G1CEC · England HP1RY · Panama ON3ABR · Belgium PE1EBT · Netherlands S51SLO · Slovenia SV5BYP · Dodecanese V47JA · St. Kitts & Nevis

Most frequent locator attributed to KB4OIF

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: EM60 · 3 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,661 km (approx.)
Last such locator decoded: 2026-08-22 23:40 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	KB4OIF S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-07 00:28	40m	- / -	F1PBZ	-9 / -	2	Partial capture
10-07 00:20	40m	- / -14	PI4DX	-2 / -	7	✓ Closing fragment
08-30 22:15	20m	- / +1	PE1EBT	-4 / -	2	✓ Closing fragment
08-30 22:13	20m	- / -	KF9UG	-7 / -	2	Partial capture
08-30 21:56	20m	- / -23	G1CEC	-21 / -	2	✓ Closing fragment
08-29 22:28	20m	- / 0	V47JA	-16 / -	2	✓ Closing fragment
08-27 22:49	20m	- / -8	5Z4VJ	-10 / -	2	✓ Closing fragment
08-27 22:45	20m	- / -	DD9WN	-13 / -	2	Partial capture
08-27 22:44	20m	- / -	5Z4VJ	-12 / -	2	Partial capture
08-27 22:44	20m	- / -	M7TUP	-14 / -	2	Partial capture
08-27 21:34	20m	- / -	PD4FL	-9 / -	4	Partial capture
08-27 21:33	20m	- / -2	IK4LZH	0 / -	2	Partial capture
08-27 21:29	20m	- / -18	DL3MIB	+13 / -	8	✓ Closing fragment
08-24 21:47	20m	- / +2	W3YNI	-4 / -	2	✓ Closing fragment
08-24 21:04	20m	- / -19	EA8UP	+10 / -	8	Partial capture
08-22 23:52	20m	- / -7	DL1UDO	-4 / -	2	✓ Closing fragment
08-22 23:40	20m	-16 / -13	HP1RY	-14 / -	3	✓ Closing observed
08-22 23:38	20m	-3 / -	VE4ZIM	- / -16	3	✓ Closing fragment
08-22 23:36	20m	-4 / -	9J2FI	- / -18	2	✓ Closing fragment
08-22 23:32	20m	-8 / -19	S51SLO	+6 / -19	7	✓ Full exchange observed
08-16 23:32	20m	- / -10	SV5BYP	-14 / -	2	✓ Closing fragment
08-16 23:29	20m	- / -15	ON3ABR	-19 / -	2	✓ Closing fragment
08-16 23:20	20m	- / -15	YO4NF	-10 / -	2	Partial capture
08-03 21:27	20m	- / -16	E75C	-18 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
002015  -1 2430  KB4OIF PI4DX -14 (x7)
002815 -10 2788  KB4OIF F1PBZ JN26 (x2)

20m

UTC    dB Audio  Message
224500 -12 2166  KB4OIF 5Z4VJ KI88
224530 -14  974  KB4OIF DD9WN JO41
224900 -10 2166  KB4OIF 5Z4VJ R-08 (x2)
084330  -8  677  KB4OIF GJ0KYZ -13
222830 -16 1319  KB4OIF V47JA +00 (x2)
215630 -22 2181  KB4OIF G1CEC R-23 (x2)
221315  -1  622  KB4OIF PE1EBT JO22
221345  -8  364  KB4OIF KF9UG EN71 (x2)
221545  -3  622  KB4OIF PE1EBT R+01 (x2)
222730  -9 1834  KB4OIF TA3HEB KM38

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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