KR3HAB — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: EM95

Receiver-side FT8 activity involving KR3HAB, decoded by SO8OO in southeastern Poland. 33 FT8 messages attributed to this token as transmitter, on 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-24 and 2026-08-25.

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 33 FT8 messages attributed to KR3HAB as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was -20 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-20 dB

Estimated median S/N

Bands

40m · 33

First attributed message: 2026-08-24
Last attributed message: 2026-08-25 00:31 UTC

Observed FT8 message patterns

Attributed sample: 33 messages
Active dates: 2 UTC dates
Estimated median S/N: -20 dB
Estimated 10th-90th percentile: -24 to -16 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 32, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 1.

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 KR3HAB in decoded directed-looking exchanges:

9K2YM · Kuwait DL1R · Fed. Rep. of Germany HB9SZV · Switzerland RA3GZ · European Russia CE8TDO · Chile CX2SA · Uruguay DK7ZT · Fed. Rep. of Germany DL1UDO · Fed. Rep. of Germany EV6Z · Belarus F1PBZ · France F4BYA · France IU0NAD · Italy

Most frequent locator attributed to KR3HAB

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: EM95 · 4 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 7,876 km (approx.)
Last such locator decoded: 2026-08-25 00:29 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	KR3HAB S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-09 18:54	80m	- / -14	DK7ZT	-5 / -	5	Partial capture
09-06 02:09	60m	- / -19	EA1CQ	-16 / -	2	✓ Closing fragment
09-06 02:04	60m	- / -	F4AWT	-16 / -	3	Partial capture
09-06 01:54	60m	- / -16	LA1QRO	+6 / -	4	✓ Closing fragment
09-06 01:48	60m	- / -	ON8BB	+3 / -	3	Partial capture
09-06 01:22	80m	- / -16	TF3VS	0 / -	3	✓ Closing fragment
09-06 01:09	160m	- / -	R6AA	+17 / -	7	Partial capture
08-25 00:56	80m	- / -20	MM0KQC	+6 / -	2	Partial capture
08-25 00:49	80m	- / -22	MM0KQC	-5 / -	3	Partial capture
08-25 00:30	40m	-20 / -	KO4MRJ	- / -7	2	✓ Closing fragment
08-25 00:30	40m	-18 / -11	UA3PAB	+8 / -25	6	✓ Full exchange observed
08-25 00:25	40m	- / -	R6OD	+3 / -	3	Partial capture
08-25 00:23	40m	- / -	EA5HM	-11 / -	5	Partial capture
08-25 00:16	40m	- / -	PV8AJ	-19 / -	2	Partial capture
08-25 00:13	40m	- / -12	DL1UDO	-1 / -	3	✓ Closing fragment
08-25 00:06	40m	-22 / -3	DK7ZT	-13 / -19	5	✓ Full exchange observed
08-25 00:04	40m	-20 / -12	UA3DIB	+8 / -10	7	✓ Full exchange observed
08-25 00:02	40m	-18 / -	EV6Z	- / -20	2	✓ Closing fragment
08-25 00:00	40m	-21 / -	CX2SA	- / -3	2	✓ Closing fragment
08-24 23:59	40m	-19 / -	UT3RO	- / -13	4	Partial capture
08-24 23:59	40m	- / -	RA6FC	-12 / -	2	Partial capture
08-24 23:58	40m	-22 / -	CE8TDO	- / -19	3	✓ Closing fragment
08-24 23:56	40m	-22 / -	SP6AXW	- / -17	2	✓ Closing fragment
08-24 23:54	40m	-22 / -	KA1ERL	-5 / -	4	Partial capture
08-24 23:52	40m	-17 / -8	F4BYA	+6 / -16	7	✓ Full exchange observed
08-24 23:07	40m	- / -10	DK7ZT	+7 / -	3	Partial capture
08-24 23:04	40m	- / -15	IU0NAD	+2 / -	5	✓ Closing fragment
08-24 22:59	40m	- / -	F4BYA	+4 / -	4	Partial capture
08-24 22:48	40m	- / -12	PD0IFI	+6 / -	7	Partial capture
08-24 22:47	40m	- / -16	F1PBZ	+6 / -	3	✓ Closing fragment
08-24 22:47	40m	- / -21	YO4NF	0 / -	4	✓ Closing fragment
08-24 22:47	40m	-1 / -	F4BYA	+5 / -7	8	Partial capture
08-24 22:43	40m	- / -	F4BYA	+3 / -	4	Partial capture
08-24 22:43	40m	- / -20	IZ8DBJ	-13 / -	3	✓ Closing fragment
08-24 22:43	40m	- / -	M9DNC	-20 / -	4	Partial capture
08-24 22:42	40m	- / -13	DK7ZT	+7 / -	3	Partial capture
08-14 21:37	20m	- / -	HB9SZV	-8 / -	2	Partial capture
08-14 21:08	20m	- / -18	DL1R	-1 / -	7	✓ Closing fragment
08-13 18:52	20m	- / -20	RA3GZ	-17 / -	4	✓ Closing fragment
08-12 21:36	20m	- / -11	PD8L	-7 / -	3	Partial capture
08-12 21:20	20m	- / -16	OY5T	-13 / -	3	Partial capture
08-09 19:40	20m	- / -	DL1R	-4 / -	8	Partial capture
07-12 02:23	80m	- / -	HB9MZI	-23 / -	6	Partial capture
07-12 02:22	80m	- / -	EA1IOK	-9 / -	3	Partial capture
07-11 23:22	20m	- / -3	9K2YM	-6 / -	2	✓ Closing fragment
07-11 23:15	20m	- / +4	VE1WT	-18 / -	8	Partial capture
07-11 23:05	20m	- / -17	EA5EP	-22 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
022630 -23 1864  KR3HAB HB9MZI JN46 (x2)
004930  -6 1451  KR3HAB MM0KQC -22 (x5)
012245  +2 2007  KR3HAB TF3VS HP94 (x3)
185400  -4 1112  KR3HAB DK7ZT -14 (x5)

60m

UTC    dB Audio  Message
014645 -16 1612  KR3HAB F4AWT JN24
014845  +4 2529  KR3HAB ON8BB JO21 (x3)
015415  +5  410  KR3HAB LA1QRO R-16 (x4)
020400 -15 1615  KR3HAB F4AWT JN24 (x3)
020930 -16 1614  KR3HAB EA1CQ -19 (x2)

160m

UTC    dB Audio  Message
010945 +15  695  KR3HAB R6AA KN95 (x7)

40m

UTC    dB Audio  Message
002400 -11 1196  KR3HAB EA5HM IM99 (x3)
002530  +1 2653  KR3HAB R6OD KN87 (x3)
002945 -20 1795  CQ KR3HAB EM95
003000 +10 1796  KR3HAB UA3PAB KO84
003015 -17 1794  KO4MRJ KR3HAB -07 (x2)
003100 +11 1793  KR3HAB UA3PAB KO84
003115 -19 1792  UA3PAB KR3HAB -25
003130  +7 1793  KR3HAB UA3PAB R-11
003145 -16 1792  UA3PAB KR3HAB RR73
003200  +5 1793  KR3HAB UA3PAB 73

20m

UTC    dB Audio  Message
185230 -22 1595  KR3HAB RA3GZ KO92 (x4)
210800  -3 2671  KR3HAB DL1R JN58 (x7)
213745  -8 2581  KR3HAB HB9SZV JN47 (x3)
134400  +4 1844  KR3HAB F1PSX JN08

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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee