K3HRH — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: FN01

Receiver-side FT8 activity involving K3HRH, decoded by SO8OO in southeastern Poland. 34 FT8 messages attributed to this token as transmitter, on 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-08-22 and 2026-08-28.

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 34 FT8 messages attributed to K3HRH as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (62%); the estimated median was -16 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-16 dB

Estimated median S/N

Bands

20m · 34

First attributed message: 2026-08-22
Last attributed message: 2026-08-28 04:28 UTC

Observed FT8 message patterns

Attributed sample: 34 messages
Active dates: 3 UTC dates
Estimated median S/N: -16 dB
Estimated 10th-90th percentile: -21 to -9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 21, moderate (-15 to -9 dB) 11, 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.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with K3HRH in decoded directed-looking exchanges:

8Z1IT · Saudi Arabia 9A3MA · Croatia EY35S · Tajikistan F5RAV · France HB9TIH · Switzerland I6PJC · Italy R2DN · European Russia R2DRE · European Russia R3TY · European Russia RA3SO · European Russia TA3JOH · Asiatic Turkey UA3IDQ · European Russia

Most frequent locator attributed to K3HRH

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: FN01 · 23 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 7,268 km (approx.)
Last such locator decoded: 2026-08-28 04:26 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	K3HRH S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-28 04:55	20m	- / -19	R3TY	-9 / -	3	✓ Closing fragment
08-28 04:53	20m	- / -	YO4NT	-3 / -	2	Partial capture
08-28 04:44	20m	- / -12	R3IX	-12 / -	2	Partial capture
08-28 04:39	20m	- / -11	UA3IDQ	-12 / -	2	✓ Closing fragment
08-28 04:28	20m	- / -11	UD7G	+9 / -	3	Partial capture
08-28 04:27	20m	-18 / -	R2DRE	- / -3	2	✓ Closing fragment
08-28 04:21	20m	- / -11	UA3SAO	+4 / -	2	✓ Closing fragment
08-28 04:17	20m	- / -23	R2DN	-3 / -	6	✓ Closing fragment
08-27 03:00	20m	- / -19	YV5AEZ	-17 / -	4	✓ Closing fragment
08-27 02:40	20m	-22 / -	R3UAX	- / -	2	Partial capture
08-27 02:11	20m	-14 / -	8Q7PR	- / -	2	Partial capture
08-27 02:09	20m	-18 / -	A41MC	- / -	2	Partial capture
08-27 02:05	20m	-18 / -	<...>	- / -	2	Partial capture
08-23 06:19	20m	- / -13	F5RAV	-10 / -	4	✓ Closing fragment
08-22 04:41	20m	- / -1	IU0OYV	-10 / -	2	Partial capture
08-22 04:28	20m	-8 / -	4L1MA	- / -	2	Partial capture
08-22 04:10	20m	- / -14	TA3JOH	+2 / -	2	✓ Closing fragment
08-22 04:08	20m	-11 / -	I6PJC	-5 / -15	9	✓ Full exchange observed
08-22 04:03	20m	-19 / -	RA3SO	- / -	2	✓ Closing fragment
08-22 04:02	20m	-16 / -	A61SD	- / -	2	Partial capture
08-22 04:00	20m	-16 / -	8Z1IT	- / -9	3	✓ Closing fragment
08-22 02:48	20m	- / -	G4RYE	-11 / -	2	Partial capture
08-12 02:33	20m	- / -6	HB9TIH	-14 / -	3	✓ Closing fragment
08-12 02:22	20m	- / -11	UT0RM	-4 / -	2	Partial capture
08-12 02:09	20m	- / -	DL1R	0 / -	8	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
042800 -17 1172  R2DRE K3HRH 73
042845 +10  414  K3HRH UD7G -11
042845  +8  462  K3HRH <...> -13
042915  +6  414  K3HRH UD7G -11
042915 +10  462  <K3HRH> EY35S RR73
042945 +10  414  K3HRH UD7G -11
043915 -12 1172  K3HRH UA3IDQ -11 (x2)
044415 -11 1948  K3HRH R3IX KO76 (x2)
045345  -1 1741  K3HRH YO4NT KN43 (x2)
045515 -12 1995  K3HRH R3TY -19 (x3)

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.

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