YL3GAO — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Latvia Most frequent locator attributed to this token: KO16

Receiver-side FT8 activity involving YL3GAO, decoded by SO8OO in southeastern Poland. 824 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 41 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-15.

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 824 FT8 messages attributed to YL3GAO as the transmitting token by decoded message structure across 41 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (72%), followed by 20 m (17%) and 10 m (8%). The busiest six-hour window was 12:00-18:00 UTC, containing 50% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

824

Messages attributed

UTC dates decoded

163

Active 15-min windows

-8 dB

Estimated median S/N

Bands

80m · 25 40m · 591 20m · 143 10m · 65

First attributed message: 2026-06-07
Last attributed message: 2026-09-15 09:49 UTC

Observed FT8 message patterns

Attributed sample: 824 messages
Active dates: 41 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -17 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 121, moderate (-15 to -9 dB) 275, strong (≥ -8 dB) 428.

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 YL3GAO in decoded directed-looking exchanges:

DL8NW · Fed. Rep. of Germany ×2 F5ADE · France ×2 HB9EFK · Switzerland ×2 UA4FKT · European Russia ×2 YO6LM · Romania ×2 BA8BLK · China ×2 DH9DR · Fed. Rep. of Germany ×2 DL1CC · Fed. Rep. of Germany ×2 IW2OEF · Italy ×2 UZ5DM · Ukraine ×2 F5IET · France ×2 LY2SA · Lithuania ×2

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 YL3GAO

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: KO16 · 390 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 734 km (approx.)
Last such locator decoded: 2026-09-15 09:49 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	YL3GAO S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-15 09:48	40m	-6 / -	SM7WNM	- / -	3	Partial capture
09-15 09:02	40m	-14 / -	DK1XAM	- / +3	2	✓ Closing fragment
09-15 06:33	40m	+2 / -	II0IHMG	- / -	6	Partial capture
09-15 06:30	40m	+6 / -	HF100PKP	- / -5	3	Partial capture
09-15 06:29	40m	-2 / -8	EM70WWW	-3 / +8	3	Partial capture
09-15 06:27	40m	0 / +4	3Z100PKP	+3 / -	2	Partial capture
09-15 06:24	40m	-4 / -5	SN40KZE	+2 / -12	3	Partial capture
09-15 05:27	40m	-8 / -	F5OYA/P	- / -	2	Partial capture
09-15 04:59	40m	-5 / -6	IK4TVP	-7 / -4	7	✓ Full exchange observed
09-15 04:57	40m	- / -3	TK/4O7CC	-12 / -	2	Partial capture
09-15 04:57	40m	-5 / -	ZL1RPC/P	- / 0	3	Partial capture
09-14 17:28	80m	+3 / +1	RA2FU	-10 / -10	10	✓ Full exchange observed
09-14 17:18	80m	+10 / -	LY2SA	+5 / -21	8	✓ Full exchange observed
09-14 16:39	40m	-2 / -	BD8FOD	- / -	4	Partial capture
09-14 16:32	40m	-7 / -	II9IAGM	- / -	3	Partial capture
09-14 16:27	40m	-3 / -4	II0IHMG	-5 / -7	4	Partial capture
09-14 16:26	40m	- / -	OH6NIO	-6 / -	2	Partial capture
09-14 16:25	40m	-8 / -4	EX7CQ	-6 / +3	4	✓ Full exchange observed
09-14 16:20	40m	-10 / 0	SN31ROT	+5 / -	3	Partial capture
09-14 16:19	40m	-2 / -	SV/OE3PKB	- / -	2	Partial capture
09-14 16:19	40m	- / -7	WB8YJF/NA67	-4 / -	2	Partial capture
09-14 16:15	40m	-5 / -	SN31ROT	- / -	2	Partial capture
09-14 16:10	40m	-5 / -6	II8IHBC	-15 / -	2	Partial capture
09-14 16:07	40m	-7 / -12	II6IALU	-2 / 0	6	Partial capture
09-14 06:23	40m	-8 / -	RW3VA/M	- / -	2	Partial capture
09-14 05:49	40m	-12 / -	F4DIA	- / +2	6	Partial capture
09-14 05:13	40m	-12 / -6	DK100LH	-1 / +10	3	Partial capture
09-14 05:09	40m	-12 / -	UR4QWW	- / -18	3	Partial capture
09-14 05:07	40m	-8 / -8	UX2QX	-3 / -	4	✓ Closing observed
09-14 05:06	40m	-4 / -	YO4SX	-10 / -15	3	✓ Closing observed
09-14 05:04	40m	-4 / -	LA8ENA	- / -	3	✓ Closing fragment
09-14 04:59	40m	- / -	DL6LG	-19 / -	2	Partial capture
09-14 04:37	40m	- / -	IK6DLK	-4 / -	3	Partial capture
09-13 15:03	40m	-9 / -	II6IALU	- / -	3	Partial capture
09-13 14:46	40m	-9 / -12	M0KCB/P	-12 / -10	5	Partial capture
09-13 13:56	40m	-9 / -	SA7CHI	-12 / -	4	✓ Closing observed
09-13 13:50	40m	-12 / -	II4IANT	- / -	3	Partial capture
09-13 13:44	40m	-10 / -	3Z100PKP	- / -11	3	Partial capture
09-13 10:23	40m	-11 / -	RT4A/P	- / -	3	Partial capture
09-13 05:09	40m	-15 / -12	EH3ST	-12 / -5	8	✓ Full exchange observed
09-13 04:42	40m	- / -	IK6DLK	+3 / -	3	Partial capture
09-13 04:39	40m	- / -	IK6DLK	+6 / -	3	Partial capture
09-13 04:35	40m	- / -	IK6DLK	+7 / -	3	Partial capture
09-05 12:35	40m	0 / +10	DM0CRACY	-5 / -	2	Partial capture
09-05 11:38	40m	-21 / -	3Z25POT	-7 / -	2	Partial capture
09-05 11:13	40m	-20 / -	DK0LI/P	- / -7	3	✓ Closing fragment
09-05 11:06	40m	- / +1	OH2MA	-10 / -	2	Partial capture
09-05 11:02	40m	-22 / -15	SQ100PKP	-10 / -	2	Partial capture
09-05 08:03	40m	- / -	DL7EDU	-2 / -	2	✓ Closing fragment
09-05 07:41	40m	-13 / -	M7KEV	- / +5	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
062930  -2 1983  EM70WWW YL3GAO R+08
063045  +4  593  HF100PKP YL3GAO KO16 (x3)
063315  +0  880  <II0IHMG> YL3GAO KO16 (x6)
090230 -16 2290  DK1XAM YL3GAO R+03 (x2)
094830  -6 1059  SM7WNM YL3GAO KO16 (x3)

80m

UTC    dB Audio  Message
172030  +9 2498  LY2SA YL3GAO 73
172730  +6  647  CQ YL3GAO KO16 (x2)
172815 -11 2008  YL3GAO RA2FU +01
172815  +3 2757  YL3GAO HF5A JO92
172830  +4  647  CQ YL3GAO KO16
172845  -7 2008  YL3GAO RA2FU +01
172900  +3  647  RA2FU YL3GAO R-10 (x3)
173015 -11 2008  YL3GAO RA2FU 73
173030  +2  647  RA2FU YL3GAO R-10
173045 -14 2008  YL3GAO RA2FU RRR
173100  -4 2007  RA2FU YL3GAO R-10
173115  -7 2008  YL3GAO RA2FU 73

20m

UTC    dB Audio  Message
170815  -8 2103  EP2AES YL3GAO KO16 (x2)
090730 -10 2006  PA0MUS YL3GAO KO16
090745  +3 2006  YL3GAO PA0MUS +00 (x2)
091100 -11  930  YL3GAO OE9NET RR73
141515 -15 2105  II7MGBT YL3GAO KO16 (x2)
141915  -2 2106  EP2AES YL3GAO KO16 (x2)
142215  +1  825  II7MGXX YL3GAO KO16
142230  +0  826  YL3GAO II7MGXX -10
142445  -6  836  CT2JTN YL3GAO -01 (x2)
143415  -5 2120  BX4AP YL3GAO KO16

10m

UTC    dB Audio  Message
153645 +10  942  YL3GAO IU2IKT 73
153730  +5  460  YL3GAO F5NAA -02 (x2)
154000 -13  774  YL3GAO TM6KJS RR73
080945 -20 2237  YL3GAO F4IDN IN97
081445 -11 2381  YL3GAO ON5RZ JO21 (x3)
082330  +7 2504  YL3GAO F4DUZ R+05 (x2)
103330  -6  932  YL3GAO DN9JGL -05 (x2)
104115  -9 2124  YL3GAO DO9PV -12 (x2)
104830 -20 2122  YL3GAO II7MGBT -11

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.

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