K5WBM — 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 Most frequent locator attributed to this token: EM50

Receiver-side FT8 activity involving K5WBM, decoded by SO8OO in southeastern Poland. 62 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 8 UTC dates in the available aggregate history. Observed between 2026-08-12 and 2026-10-11.

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 62 FT8 messages attributed to K5WBM as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (56%), followed by 40 m (44%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

80m · 35 40m · 27

First attributed message: 2026-08-12
Last attributed message: 2026-10-11 01:04 UTC

Observed FT8 message patterns

Attributed sample: 62 messages
Active dates: 8 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -21 to -6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 25, moderate (-15 to -9 dB) 17, strong (≥ -8 dB) 20.

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 K5WBM in decoded directed-looking exchanges:

IZ5IMD · Italy ×2 SV9CVY · Crete A99AA · Bahrain AA3B · United States E77LZ · Bosnia-Herzegovina EB3JT · Spain EX7CQ · Kyrgyzstan G7SLB · England HF1Z · Poland R2BQM · European Russia R3ST · European Russia RN2F · Kaliningrad

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to K5WBM

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: EM50 · 25 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,779 km (approx.)
Last such locator decoded: 2026-10-11 01:01 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	K5WBM S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-31 22:27	80m	- / -16	S58N	+15 / -	5	✓ Closing fragment
10-29 23:33	40m	- / -17	SV7SXE	-12 / -	5	✓ Closing fragment
10-29 23:29	40m	- / -16	EX7CQ	-13 / -	2	✓ Closing fragment
10-29 23:27	40m	- / -21	R3ST	+10 / -	7	✓ Closing fragment
10-29 23:26	40m	- / -12	G7SLB	+4 / -	3	✓ Closing fragment
10-28 23:33	160m	- / -	9A5E	+4 / -	2	Partial capture
10-28 23:33	160m	- / -15	F1PBZ	-6 / -	2	Partial capture
10-27 00:39	160m	- / -21	SV9CVY	+12 / -	3	✓ Closing fragment
10-22 23:24	80m	- / -	DL1MEV	0 / -	5	Partial capture
10-11 01:05	80m	- / -	SV1BLD	+6 / -	2	Partial capture
10-11 01:01	80m	-8 / -14	DF7TV	+12 / -7	9	✓ Full exchange observed
10-11 01:00	80m	-7 / -19	IK4DCW	+5 / -	4	✓ Closing observed
10-11 00:58	80m	-11 / -	4X6ZK	-16 / -	2	✓ Closing observed
09-30 02:09	80m	- / -16	LA6YEA	+4 / -	3	✓ Closing fragment
09-30 02:01	80m	- / -13	EC3A	-13 / -	7	✓ Closing fragment
09-25 01:05	80m	- / -	ON6AA	+14 / -	4	Partial capture
09-23 00:00	40m	-7 / -	YU65AEC	- / -20	3	Partial capture
09-22 23:58	40m	-8 / -	HF1Z	- / -18	3	✓ Closing fragment
09-22 23:55	40m	-8 / -	ZA5G	- / -18	3	Partial capture
09-22 23:54	40m	-8 / -	R3BGQ/P	- / -19	2	Partial capture
09-22 23:53	40m	- / -	M1WLK	-2 / -	3	Partial capture
09-22 23:51	40m	-8 / -	RN2F	- / -21	4	✓ Closing fragment
09-22 23:49	40m	-6 / -	E77LZ	- / -12	2	✓ Closing fragment
09-22 23:47	40m	-10 / -16	R2BQM	+7 / -	3	✓ Closing observed
09-22 23:47	40m	- / -12	M1WLK	-2 / -	3	Partial capture
09-22 23:46	40m	-8 / -16	A99AA	-5 / -15	5	✓ Full exchange observed
09-21 01:01	40m	- / -19	G8KHF	+7 / -	4	Partial capture
09-21 00:42	40m	-10 / -	CN8NS	- / -	3	Partial capture
09-21 00:39	40m	- / -14	G0IUS	0 / -	3	Partial capture
09-21 00:35	40m	- / +8	WA4UVH	-10 / -	2	Partial capture
09-21 00:31	40m	- / -10	EB3JT	+2 / -	3	✓ Closing fragment
08-30 01:11	80m	- / -	SP4DLD	+7 / -	3	Partial capture
08-30 01:07	80m	-18 / -	NC3G	- / -13	2	✓ Closing fragment
08-30 01:07	80m	- / -	UA4FKT	+9 / -	3	Partial capture
08-30 01:05	80m	-19 / -	N1TQP	- / 0	3	✓ Closing fragment
08-30 01:03	80m	- / -	SP4DLD	+5 / -	6	Partial capture
08-30 01:02	80m	-22 / -	KF2OG	- / -10	2	✓ Closing fragment
08-30 01:02	80m	- / -	OZ1KWJ	+7 / -	3	Partial capture
08-30 01:00	80m	-17 / -	AE2NY	- / -6	3	✓ Closing fragment
08-30 00:59	80m	- / -	OK1UOZ	+7 / -	9	Partial capture
08-30 00:58	80m	-19 / -13	9A5E	+2 / -	3	✓ Closing observed
08-30 00:55	80m	- / -18	9A4V	+16 / -	4	✓ Closing fragment
08-29 00:43	80m	- / -	IK5CHL	+2 / -	12	Partial capture
08-29 00:41	80m	- / -	OK1UOZ	+7 / -	8	Partial capture
08-29 00:38	80m	- / -	IK5CHL	+4 / -	5	Partial capture
08-28 02:26	80m	- / -	IK5CHL	-2 / -	2	Partial capture
08-28 01:14	80m	- / -	CT2GQA	-14 / -	2	Partial capture
08-28 01:08	80m	- / -19	E75C	+6 / -	3	✓ Closing fragment
08-28 01:05	80m	- / -	SQ7BFC	+7 / -	3	Partial capture
08-28 01:04	80m	- / -8	MI7XHT	-7 / -	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
010415 +10 1090  K5WBM DF7TV 73
010545  +5 2526  K5WBM SV1BLD KM17 (x2)
004730 -20  709  K5WBM LU2BA GF05
232330  +9 2343  K5WBM F5HNQ IN98
232400  -3 2357  K5WBM DL1MEV JN58 (x5)
222730 +13 2100  K5WBM S58N JN76 (x5)

160m

UTC    dB Audio  Message
003945 +11 2593  K5WBM SV9CVY -21 (x3)
233300  -9 1904  K5WBM F1PBZ -15 (x2)
233330  +3 2133  K5WBM 9A5E JN75 (x2)
021000 -13  604  K5WBM 6W/IK2HKT -17
021030 -13  604  K5WBM RR73; PY5IP <...> -18

40m

UTC    dB Audio  Message
232800  +9 2852  K5WBM R3ST LO05
232800  +2 2949  K5WBM G7SLB 73
232900 +13 2784  K5WBM R3ST LO05
232930 -15 1896  K5WBM EX7CQ -16 (x2)
233030  +5 2784  K5WBM R3ST LO05 (x4)
233300 -14  966  K5WBM SV7SXE KN20 (x3)
233500  +3 2904  K5WBM F5PBG IN78
233530 -10  966  K5WBM SV7SXE 73 (x2)

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.

CW

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

Explore CW reception at SO8OO

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