KQ5U — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: EM20

Receiver-side FT8 activity involving KQ5U, decoded by SO8OO in southeastern Poland. 13 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-06-19 and 2026-08-27.

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 13 FT8 messages attributed to KQ5U as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (92%), followed by 80 m (8%). In this small sample, the estimated median decoder S/N was -17 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-17 dB

Estimated median S/N

Bands

80m · 1 20m · 12

First attributed message: 2026-06-19
Last attributed message: 2026-08-27 03:00 UTC

Observed FT8 message patterns

Attributed sample: 13 messages
Active dates: 2 UTC dates
Estimated median S/N: -17 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, 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 KQ5U in decoded directed-looking exchanges:

HB9CXZ · Switzerland ×2 A41KB · Oman LY5A · Lithuania MI7XHT · Northern Ireland RA3RDN · European Russia KG3V · United States KO4PRE · United States LU8YD · Argentina NM1G · United States

Most frequent locator attributed to KQ5U

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: EM20 · 4 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 9,123 km (approx.)
Last such locator decoded: 2026-08-27 02:55 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	KQ5U S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-27 02:59	20m	-21 / -	LU9BML	- / -17	2	Partial capture
08-27 02:58	20m	- / -16	RA9ACA	-18 / -	3	Partial capture
08-27 02:54	20m	-17 / -	A41KB	-14 / -7	5	✓ Closing observed
08-27 02:54	20m	- / -17	RA9ACA	-24 / -	2	Partial capture
08-27 02:53	20m	-18 / -	RA3RDN	- / -13	2	✓ Closing fragment
08-27 02:51	20m	-15 / -	LY5A	- / +1	3	✓ Closing fragment
08-21 02:11	80m	- / -	DO1ID	+14 / -	2	Partial capture
08-21 02:10	80m	- / -16	DH1KJ	+8 / -	4	Partial capture
08-21 01:22	80m	- / -21	HB9CXZ	+14 / -	13	✓ Closing fragment
08-18 02:30	80m	- / -	F4FPR	-16 / -	2	Partial capture
08-08 01:47	80m	- / -8	NM1G	-16 / -	3	✓ Closing fragment
08-08 00:46	80m	- / -9	KO4PRE	-7 / -	3	✓ Closing fragment
06-30 02:53	80m	- / -10	TM2WWA	-5 / -	2	Partial capture
06-30 02:22	80m	- / -9	TM2WWA	0 / -	2	Partial capture
06-30 02:10	80m	- / -	EA3NG	-2 / -	4	Partial capture
06-30 02:00	80m	- / -14	LU8YD	-12 / -	4	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
012545 +15 2423  KQ5U HB9CXZ -21 (x7)
021015  +3  680  KQ5U DH1KJ JN48 (x2)
021115 +15  382  KQ5U DO1ID JO41
021115  +7  680  KQ5U DH1KJ -16
021145 +14  382  KQ5U DO1ID JO41
021145 +11  680  KQ5U DH1KJ -16
023945 -15  995  KQ5U W4KCM EM95
015015 -14  991  KQ5U KG3V RR73

20m

UTC    dB Audio  Message
025345 -20 2177  RA3RDN KQ5U RR73
025400 -23 1817  KQ5U RA9ACA -17 (x2)
025445 -16 2177  A41KB KQ5U EM20 (x3)
025730 -14 2377  KQ5U A41KB RR73
025745 -19 2177  A41KB KQ5U 73
025830 -18 1818  KQ5U RA9ACA -16
025845 -21 2177  MI7XHT KQ5U RR73
025900 -17 1818  KQ5U RA9ACA -15 (x2)
025945 -21 2177  LU9BML KQ5U -17 (x2)
031930 -17 1711  KQ5U YV5AEZ R-13

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