W4YGM — 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: FM05

Receiver-side FT8 activity involving W4YGM, decoded by SO8OO in southeastern Poland. 19 FT8 messages attributed to this token as transmitter, on 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-08-23.

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 19 FT8 messages attributed to W4YGM as the transmitting token by decoded message structure across 7 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 -14 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-14 dB

Estimated median S/N

Bands

20m · 19

First attributed message: 2026-06-09
Last attributed message: 2026-08-23 00:14 UTC

Observed FT8 message patterns

Attributed sample: 19 messages
Active dates: 7 UTC dates
Estimated median S/N: -14 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 6, strong (≥ -8 dB) 4.

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 W4YGM in decoded directed-looking exchanges:

D2UY · Angola HB9EXE · Switzerland LZ2INP · Bulgaria RA6FC · European Russia W9GIL · United States 9A7W · Croatia EC5M · Spain F4EGM · France F6DZU · France OK1WCF · Czech Republic OZ6ABL · Denmark

Most frequent locator attributed to W4YGM

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: FM05 · 9 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 7,754 km (approx.)
Last such locator decoded: 2026-06-17 00:18 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	W4YGM S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-02 05:19	40m	- / -11	IV3DXW	0 / -	2	Partial capture
10-02 05:15	40m	- / -15	F4EGM	-6 / -	2	✓ Closing fragment
09-14 00:37	40m	- / -13	EC5M	-6 / -	3	✓ Closing fragment
08-31 18:33	20m	- / -22	GM0VRP	-5 / -	2	Partial capture
08-28 21:29	20m	- / -16	LZ2INP	+15 / -	4	✓ Closing fragment
08-24 00:32	40m	- / -14	G7KHF	-6 / -	3	Partial capture
08-23 00:13	20m	-18 / -	W9GIL	- / -	2	✓ Closing fragment
08-23 00:07	20m	- / -12	HB9EXE	-1 / -	3	✓ Closing fragment
08-22 21:38	20m	- / -12	PD4RJ	-11 / -	4	Partial capture
08-21 00:50	40m	- / -16	OK1WCF	0 / -	2	✓ Closing fragment
08-20 00:58	20m	- / -14	IK4TVP	-12 / -	6	Partial capture
08-17 00:59	20m	- / -	HB9TIH	-22 / -	2	Partial capture
08-17 00:51	20m	- / -16	RA6FC	-11 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
005515 -13 2387  W4YGM MI7XHT IO64
004645  -8 1906  W4YGM DK7ZT -08
003200  -6 1294  W4YGM G7KHF -14 (x3)
003745  -2  816  W4YGM EC5M -13 (x3)
051515  -7  940  W4YGM F4EGM -15 (x2)
051930  -5  238  W4YGM IV3DXW -11 (x2)
000630 -16 1051  W4YGM 9A7W RR73
053900  +1  521  W4YGM F6DZU RR73
004300 -11  454  W4YGM CU2DX +01

20m

UTC    dB Audio  Message
213815  -7 1424  W4YGM PD4RJ -12 (x4)
000715  +4 1358  W4YGM HB9EXE -12 (x3)
001345 -19  906  W9GIL W4YGM R+12 (x2)
212930 +15  520  W4YGM LZ2INP -16 (x4)
183345  -3  946  W4YGM GM0VRP -22 (x2)

CW

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

Explore CW reception at SO8OO

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