UW5ZM — 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: Ukraine Most frequent locator attributed to this token: KN57

Receiver-side FT8 activity involving UW5ZM, decoded by SO8OO in southeastern Poland. 3,467 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 71 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-11-05.

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 3,467 FT8 messages attributed to UW5ZM as the transmitting token by decoded message structure across 71 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (44%), followed by 160 m (35%) and 60 m (10%). The busiest six-hour window was 00:00-06:00 UTC, containing 49% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (87%); the estimated median was +6 dB.

Overview

3,467

Messages attributed

UTC dates decoded

332

Active 15-min windows

+6 dB

Estimated median S/N

Bands

160m · 1,202 80m · 164 60m · 357 40m · 1,538 20m · 206

First attributed message: 2026-06-08
Last attributed message: 2026-11-05 21:11 UTC

Observed FT8 message patterns

Attributed sample: 3,467 messages
Active dates: 71 UTC dates
Estimated median S/N: +6 dB
Estimated 10th-90th percentile: -9.7 to +19 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 77, moderate (-15 to -9 dB) 374, strong (≥ -8 dB) 3,016.

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 UW5ZM in decoded directed-looking exchanges:

JA0GCI · Japan ×2 JG3TRB · Japan ×2 LA9JKA · Norway ×2 XX9TXN · Macao ×2 A93MO · Bahrain AA9JC · United States BD4UJ · China BD8CS · China BG2GWN · China BG9MM · China BH3FZG · China BX4AP · Taiwan

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 UW5ZM

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: KN57 · 2,873 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 727 km (approx.)
Last such locator decoded: 2026-11-05 21:10 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	UW5ZM S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-05 20:59	40m	-11 / -	9X5KM	- / -3	12	Partial capture
11-05 20:50	40m	-8 / -	BG5JKZ	- / -	3	Partial capture
11-05 20:47	40m	-6 / -	JA5DBE	- / -26	5	Partial capture
11-05 20:39	40m	-8 / -	JA6EXO	- / -7	5	Partial capture
11-05 20:35	40m	-13 / -	JA8IOG	- / -	2	Partial capture
11-05 20:24	40m	-2 / -	JR6UEE	- / -22	2	✓ Closing fragment
11-05 20:19	40m	-6 / -	D2ACE	- / -20	2	✓ Closing fragment
11-05 20:07	40m	-3 / -	DS2MGT	- / -	4	Partial capture
11-05 20:06	40m	-8 / -	YB2SLF	- / -	2	Partial capture
11-05 20:04	40m	-10 / -	JK1SYC	- / -	2	✓ Closing fragment
11-05 19:28	40m	-10 / -	YG2AUI	- / -12	2	✓ Closing fragment
11-05 19:24	40m	0 / -	BG3ISK	- / -23	2	Partial capture
11-05 19:22	40m	-9 / -	YB6HSK	- / -	4	Partial capture
11-05 19:15	40m	-10 / -	YB2SLF	- / -26	5	Partial capture
11-05 19:11	40m	-10 / -	EA9ADC	-19 / -	2	✓ Closing observed
11-05 19:01	40m	- / -	IU8RFW	-12 / -	3	Partial capture
11-05 18:56	40m	-7 / -	JR2QHV	- / -16	5	✓ Closing fragment
11-03 14:54	60m	+11 / -	YB1RUS	- / -	3	Partial capture
11-02 22:00	160m	- / -	UA4FKT	+9 / -	3	Partial capture
11-02 21:59	160m	+6 / -	BG9MM	- / -24	3	✓ Closing fragment
11-02 21:14	160m	- / -	DL3YEM	-14 / -	3	Partial capture
11-02 21:11	160m	+7 / -	JA0DET	- / -11	6	✓ Closing fragment
11-02 19:35	160m	0 / -	VK5GR	- / -18	3	✓ Closing fragment
10-31 20:41	160m	+11 / -	JA9XRL	- / -	9	Partial capture
10-31 20:30	160m	-5 / -	JM1JZN	- / -10	2	✓ Closing fragment
10-31 20:25	160m	0 / -	JA0GCI	- / -18	2	✓ Closing fragment
10-31 20:20	160m	+8 / -	JE2VLG	- / -12	4	✓ Closing fragment
10-31 20:20	160m	- / -1	PA3EVZ	-10 / -	2	Partial capture
10-31 20:15	160m	+10 / -	R6UA	- / -1	2	✓ Closing fragment
10-31 20:11	160m	+10 / -	JH7VTE	- / -15	2	✓ Closing fragment
10-31 20:10	160m	+12 / -	JA8IIK/P	- / -14	3	Partial capture
10-31 20:08	160m	- / -	ON7ZO	0 / -	2	Partial capture
10-31 20:08	160m	- / -	R3BCK	-17 / -	3	Partial capture
10-31 20:05	160m	+12 / -	JA7YAA	- / -17	6	✓ Closing fragment
10-31 02:43	160m	+4 / -	K1ZM	- / -	3	Partial capture
10-30 20:20	160m	+3 / -	VR2ZXP	- / -	3	Partial capture
10-30 20:06	160m	+7 / -	JH4BYS	- / -15	2	✓ Closing fragment
10-30 20:03	160m	+11 / -	BX4AP	- / -25	5	✓ Closing fragment
10-30 02:47	160m	- / -	RA4FUT	-12 / -	3	Partial capture
10-30 02:13	160m	+6 / -	6W/IK2HKT	- / -	26	Partial capture
10-29 20:20	160m	-1 / -	YC2KME	- / -	5	Partial capture
10-29 20:18	160m	+7 / -	JH8JPK	- / -	5	Partial capture
10-29 19:55	60m	-17 / -	6W/IK2HKT	- / -	3	Partial capture
10-29 06:06	60m	+11 / -	LZ26IPA	- / -18	3	Partial capture
10-29 05:09	40m	+8 / -	KB0PHX	- / -	3	Partial capture
10-29 05:07	40m	+14 / -	KE8YOU	- / -	4	Partial capture
10-29 05:02	40m	+13 / -	KE8YOU	- / -	3	Partial capture
10-29 04:49	40m	+12 / -	WV5A	- / -	28	Partial capture
10-29 04:49	40m	+14 / -	VE3GLN	- / -	2	Partial capture
10-29 04:46	40m	+12 / -	KE8YOU	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
205045  -7  380  BG5JKZ UW5ZM KN57 (x3)
205945  -7  380  9X5KM UW5ZM KN57 (x12)

60m

UTC    dB Audio  Message
190645 -13  234  S9R UW5ZM KN57 (x4)
193400 -24 1596  UW5ZM F4HSB JN37 (x2)
060615 +11  476  LZ26IPA UW5ZM KN57 (x3)
195515 -16  230  <6W/IK2HKT> UW5ZM KN57 (x3)
145445  +4  296  YB1RUS UW5ZM KN57 (x3)

160m

UTC    dB Audio  Message
211200  +5  260  JA0DET UW5ZM KN57 (x5)
211415 -13  879  UW5ZM DL3YEM JO41 (x3)
214730  +3 1849  PP5JR UW5ZM KN57
215915 +11  265  BG9MM UW5ZM KN57 (x3)
220030 +10  266  UW5ZM UA4FKT LO23 (x3)

80m

UTC    dB Audio  Message
174415  +3 1919  RI1FJZ UW5ZM KN57 (x10)
152015  +4  822  FW1P UW5ZM KN57 (x3)
152130 -20  822  UW5ZM UA4FKT LO23 (x2)

20m

UTC    dB Audio  Message
055430  +7  356  VK4TMI UW5ZM KN57 (x6)
055800 +10  356  VK3JV UW5ZM KN57 (x2)
055900 +10  356  VK2AJB UW5ZM KN57 (x2)
060000 +10  356  VK4TMI UW5ZM KN57 (x5)

10m

UTC    dB Audio  Message
115200 -11  953  UW5ZM PD0IFI JO32 (x4)

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

1 CW reception events in the last 30 days.

160m: 1 events; last heard 2026-10-27 03:42 UTC

Latest CW receptions

UTC	Band	kHz	S/N · 500 Hz	WPM	Listen
2026-10-27 03:42:32	160m	1828.998	15.4 dB	22	WebSDR ↗

CW reception history

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