KQ4UWH — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: EM73

Receiver-side FT8 activity involving KQ4UWH, decoded by SO8OO in southeastern Poland. 5 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-06-13.

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 5 FT8 messages attributed to KQ4UWH 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 -13 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-13 dB

Estimated median S/N

Bands

20m · 5

First attributed message: 2026-06-13
Last attributed message: 2026-06-13 01:32 UTC

Observed FT8 message patterns

Attributed sample: 5 messages
Active dates: 1 UTC dates
Estimated median S/N: -13 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) 5, 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 KQ4UWH in decoded directed-looking exchanges:

DK7ZT · Fed. Rep. of Germany EB5DFU · Spain KA1MXL · United States WV2B · United States

Most frequent locator attributed to KQ4UWH

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: EM73 · 3 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,283 km (approx.)
Last such locator decoded: 2026-06-13 01:32 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	KQ4UWH S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-29 01:30	40m	- / +3	WV2B	-13 / -	3	✓ Closing fragment
08-29 00:39	40m	- / -	MI7XHT	-9 / -	3	Partial capture
08-29 00:05	40m	- / +7	WA2COU	-15 / -	7	Partial capture
08-29 00:03	40m	- / -	PA1PXL	+4 / -	5	Partial capture
08-23 01:11	40m	- / -	R7DX	+10 / -	2	Partial capture
08-23 01:02	40m	- / -	EI4JFB	+1 / -	3	Partial capture
08-23 01:02	40m	- / -	F1IQH	-13 / -	4	Partial capture
08-23 01:02	40m	- / -	IK4LZH	+8 / -	4	Partial capture
08-17 23:01	20m	- / -20	YO4NF	+1 / -	3	Partial capture
08-17 22:52	20m	- / -16	EB5DFU	0 / -	2	✓ Closing fragment
07-30 00:44	40m	- / -16	DK5ON	-16 / -	11	Partial capture
07-30 00:44	40m	- / -	RA3ZDU	-6 / -	2	Partial capture
07-30 00:18	40m	- / -	F5PBG	-10 / -	2	Partial capture
07-30 00:11	40m	- / -	F5PBG	-10 / -	2	Partial capture
07-23 01:03	40m	- / -	OH1EDK	+2 / -	5	Partial capture
07-23 01:01	40m	- / -	F1IQH	-12 / -	2	Partial capture
06-24 02:15	40m	- / -	F4BYA	-2 / -	2	Partial capture
06-24 02:05	40m	- / -	F4BYA	+2 / -	2	Partial capture
06-24 02:01	40m	- / -13	DK7UY	-9 / -	6	Partial capture
06-24 01:52	40m	- / -5	DK7ZT	-13 / -	2	Partial capture
06-24 01:51	40m	- / -	G3TKT	-12 / -	2	Partial capture
06-23 00:56	40m	- / -14	DK7ZT	-20 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
000730 -15 1239  KQ4UWH WA2COU R+07 (x4)
003830 -16 2128  KQ4UWH OE3OOG JN87
003930 -14 1637  KQ4UWH MI7XHT IO64 (x3)
013030 -12  690  KQ4UWH WV2B FM05 (x3)
013700  -9 1052  KQ4UWH MI7XHT IO64
003530 -12  925  KQ4UWH PC2J JO22
011230 -18 2010  KQ4UWH IZ4EFV JN64
011600 -14  924  KQ4UWH EA1CQ -16

20m

UTC    dB Audio  Message
134730 -14  712  KQ4UWH F1PSX JN08
233400 -24 1615  KQ4UWH SV5BYP KM46
234430  -2  253  KQ4UWH EB5DFU -19 (x3)
225430 -15  951  KQ4UWH DK7ZT RR73
225530  -2  950  KQ4UWH YO4NF -21 (x5)

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