KR4MHI — 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

Receiver-side FT8 activity involving KR4MHI, 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 2026-08-27.

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 5 FT8 messages attributed to KR4MHI 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 -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

20m · 5

First attributed message: 2026-08-27
Last attributed message: 2026-08-27 22:06 UTC

Observed FT8 message patterns

Attributed sample: 5 messages
Active dates: 1 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) 5, moderate (-15 to -9 dB) 0, 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 KR4MHI in decoded directed-looking exchanges:

CT1FIU · Portugal V31DL · Belize CT7AUT · Portugal EI9KF · Ireland PV8AJ · Brazil

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	KR4MHI S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-29 00:10	40m	- / -13	PV8AJ	-16 / -	2	✓ Closing fragment
08-28 01:42	40m	- / -17	W4DXM	-12 / -	4	Partial capture
08-28 01:08	40m	- / -10	CT7AUT	-12 / -	2	✓ Closing fragment
08-28 01:03	40m	- / -	KA1ERL	-15 / -	2	Partial capture
08-28 00:59	40m	- / -	F4GTB	-5 / -	5	Partial capture
08-28 00:35	40m	- / -10	EI9KF	-15 / -	2	✓ Closing fragment
08-27 23:22	20m	- / -	IW3BYL	-20 / -	3	Partial capture
08-27 22:03	20m	-18 / -	PD7BDN	- / -15	4	Partial capture
08-27 22:01	20m	- / -	HB9TIH	-9 / -	7	Partial capture
08-27 21:56	20m	- / -15	V31DL	-13 / -	3	✓ Closing fragment
08-27 21:38	20m	- / -16	CT1FIU	-10 / -	2	✓ Closing fragment
08-12 23:11	20m	- / -	IK4LZH	-2 / -	3	Partial capture
08-12 23:10	20m	- / -	DL1R	+1 / -	9	Partial capture
08-12 23:02	20m	- / -	HB9TIH	-12 / -	5	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
010115  -4 1872  KR4MHI F4GTB JN18
010145 -11 2291  KR4MHI KD1J FN31
010145  -7 1872  KR4MHI F4GTB JN18
010315 -14 2105  KR4MHI KA1ERL FN41 (x2)
010800 -11 1444  KR4MHI CT7AUT -10 (x2)
014200 -15 1252  KR4MHI W4DXM -17 (x4)
014430 -11 1252  KR4MHI RR73; UW5IM <...> -18
001030 -15 1732  KR4MHI PV8AJ -13 (x2)
001630 -15 2022  KR4MHI MI7XHT IO64

20m

UTC    dB Audio  Message
220115  -6 1905  KR4MHI HB9TIH JN36 (x3)
220230 -17 1656  UW8SM KR4MHI RRR
220245  -9 1905  KR4MHI HB9TIH JN36 (x2)
220330 -17 1656  PD7BDN KR4MHI -15
220345  -6 1905  KR4MHI HB9TIH JN36 (x2)
220530 -22 1656  PD7BDN KR4MHI -15 (x3)
232230 -24 1830  KR4MHI IW3BYL JN56 (x3)

CW

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

Explore CW reception at SO8OO

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