YL3RZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Latvia Most frequent locator attributed to this token: KO06

Receiver-side FT8 activity involving YL3RZ, decoded by SO8OO in southeastern Poland. 156 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-28 and 2026-08-29.

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 156 FT8 messages attributed to YL3RZ as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (42%), followed by 80 m (42%) and 40 m (15%). In this small sample, the estimated median decoder S/N was +2 dB; no usual signal pattern is inferred.

Overview

156

Messages attributed

UTC dates decoded

Active 15-min windows

+2 dB

Estimated median S/N

Bands

160m · 2 80m · 65 40m · 23 20m · 66

First attributed message: 2026-08-28
Last attributed message: 2026-08-29 07:52 UTC

Observed FT8 message patterns

Attributed sample: 156 messages
Active dates: 2 UTC dates
Estimated median S/N: +2 dB
Estimated 10th-90th percentile: -16 to +10 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 18, moderate (-15 to -9 dB) 40, strong (≥ -8 dB) 98.

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 YL3RZ in decoded directed-looking exchanges:

EA8UP · Canary Islands ×2 PE1NPS · Netherlands ×2 S57MPU · Slovenia ×2 9A4ZM · Croatia BG0DAP · China EA3GAN · Spain EA4GM · Spain EB3JT · Spain F5RRS · France HK3AB · Colombia HP1RY · Panama LU2NI · Argentina

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 YL3RZ

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: KO06 · 62 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 732 km (approx.)
Last such locator decoded: 2026-08-29 07:46 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	YL3RZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-29 07:52	20m	-8 / -	EA3GAN	- / -9	2	✓ Closing fragment
08-29 07:51	20m	-12 / -	BG0DAP	- / -13	2	✓ Closing fragment
08-29 07:50	20m	-10 / -	JH7OHS	- / -19	2	Partial capture
08-29 07:49	20m	-8 / -	OK8RM	- / -16	2	✓ Closing fragment
08-29 07:46	20m	-6 / -6	UA3VVA	-12 / -	4	✓ Full exchange observed
08-28 23:57	80m	+7 / -6	F5HNQ	-7 / +1	4	✓ Full exchange observed
08-28 23:55	80m	+10 / -3	DL9KM	-7 / -2	5	✓ Full exchange observed
08-28 23:54	80m	+11 / -7	F1PBZ	+6 / +6	4	✓ Full exchange observed
08-28 23:51	80m	+11 / -4	SN1A	+3 / -	5	✓ Full exchange observed
08-28 23:50	40m	- / -2	F4MZI	-4 / -	5	✓ Closing fragment
08-28 23:50	40m	- / -	M0KEE	-9 / -	2	✓ Closing fragment
08-28 23:50	80m	+9 / +1	CT3MD	-12 / -1	5	✓ Full exchange observed
08-28 23:48	40m	- / -4	EA1AY	-2 / -	2	✓ Closing fragment
08-28 23:48	80m	+10 / -2	DL1RBV	-13 / -9	5	✓ Full exchange observed
08-28 23:46	80m	+9 / -7	DG5PW	-12 / -	3	✓ Closing observed
08-28 23:45	80m	+8 / -6	PA0RF	-7 / +1	5	✓ Full exchange observed
08-28 23:43	80m	+6 / -13	US2YW	-5 / -10	5	✓ Full exchange observed
08-28 23:41	80m	+8 / -8	DF3IS	+5 / +6	6	✓ Full exchange observed
08-28 23:39	80m	+6 / -7	PA4PA	-15 / -9	5	✓ Full exchange observed
08-28 23:38	80m	+6 / -10	UX7QV	+3 / +7	4	✓ Full exchange observed
08-28 23:37	20m	- / -16	WI1U	-6 / -	6	Partial capture
08-28 23:35	80m	+7 / -7	OZ6ABL	0 / -	4	✓ Closing observed
08-28 23:35	80m	+6 / -	PE1NPS	-15 / -7	4	✓ Closing observed
08-28 23:34	80m	+8 / -	DL9ATW	0 / -	2	✓ Closing observed
08-28 23:34	20m	-14 / -	BH4ECL	- / -15	2	Partial capture
08-28 23:33	80m	+9 / -	S57MPU	0 / +3	6	✓ Full exchange observed
08-28 23:28	80m	+8 / +3	DO1OAS	-16 / -1	4	✓ Full exchange observed
08-28 23:26	80m	- / -12	9A3AUH	-4 / -	3	✓ Closing fragment
08-28 23:26	20m	-14 / -	9A4ZM	- / +4	2	✓ Closing fragment
08-28 23:25	80m	+4 / -	DO5HB	-21 / -9	10	✓ Closing observed
08-28 23:25	20m	- / -	KE2CJL	-15 / -	2	Partial capture
08-28 23:25	20m	- / -25	WI1U	-8 / -	4	Partial capture
08-28 23:25	80m	+8 / +7	OK1UOZ	+6 / +8	5	✓ Full exchange observed
08-28 23:24	20m	-14 / -	EA4GM	-11 / -	5	✓ Full exchange observed
08-28 23:24	80m	+7 / -	CT7AUT	- / -8	2	✓ Closing fragment
08-28 23:22	80m	- / -6	F1PBZ	+4 / -	3	Partial capture
08-28 23:22	80m	+7 / +4	F4GTB	+4 / -	4	✓ Closing observed
08-28 23:22	80m	- / -7	ON1BH	-10 / -	3	Partial capture
08-28 23:19	80m	+8 / -	EA8CVR	- / -	2	Partial capture
08-28 23:14	20m	- / -14	WB8YJF	+1 / -	2	✓ Closing fragment
08-28 23:12	40m	- / -	OE3OOG	+4 / -	3	✓ Closing fragment
08-28 23:12	20m	- / -	KA1O	-11 / -	2	Partial capture
08-28 23:05	20m	-20 / 0	WP4RBS	-20 / -9	4	✓ Full exchange observed
08-28 23:05	40m	- / -7	PE1NPS	-3 / -	3	✓ Closing fragment
08-28 23:04	20m	-14 / -	VA3FF	- / -23	2	✓ Closing fragment
08-28 23:04	40m	- / -	S57MPU	0 / -	3	✓ Closing fragment
08-28 23:02	20m	-14 / -	LU6HOG	- / -4	2	✓ Closing fragment
08-28 23:00	20m	- / -	W4FSO	-17 / -	2	Partial capture
08-28 22:59	20m	-14 / -11	HP1RY	-10 / -7	6	✓ Full exchange observed
08-28 22:59	20m	-14 / -	TI5RR	-5 / -2	3	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
084615  -9  437  YL3RZ IU3GOR JN55

20m

UTC    dB Audio  Message
074630  -9 2464  CQ YL3RZ KO06
074645 -12 1838  YL3RZ UA3VVA LO06
074700  -4 2463  UA3VVA YL3RZ +11
074715 -11 1838  YL3RZ UA3VVA R-06
074715 -18 2464  YL3RZ DH2YBG JO43
074730  -9 2463  UA3VVA YL3RZ RR73
074800  -3 2463  DS2MGT YL3RZ R-21
074900  -7 2463  OK8RM YL3RZ -16 (x2)
075000  -9 2464  JH7OHS YL3RZ -19 (x2)
075100 -14 2463  BG0DAP YL3RZ -13 (x2)
075200  -8 2464  EA3GAN YL3RZ -09 (x2)

80m

UTC    dB Audio  Message
235415  +5 2599  YL3RZ F1PBZ -07
235430 +11 1277  F1PBZ YL3RZ R+06
235445  +7 2599  YL3RZ F1PBZ RR73
235500 +11 1277  F1PBZ YL3RZ 73
235515  -7 2245  YL3RZ DL9KM JN68
235530  +8 1277  DL9KM YL3RZ -02
235545  -5 2245  YL3RZ DL9KM R-03
235600 +11 1277  DL9KM YL3RZ RR73
235615  -8 2245  YL3RZ DL9KM 73
235630  +9 1277  CQ YL3RZ KO06
235745 -11 1883  YL3RZ F5HNQ IN98
235800  +7 1277  F5HNQ YL3RZ +01
235815  -6 1883  YL3RZ F5HNQ R-06 (x2)
000100  +8 1277  MM0DXL YL3RZ RR73

40m

UTC    dB Audio  Message
231230  +4 1818  YL3RZ OE3OOG JN87 (x3)
231430 -16 2338  YL3RZ R3DQK KO95
231630 -18 1373  YL3RZ EB2EMZ IN83
234815  +0 1665  YL3RZ EA1AY -04 (x2)
234930 -24 1865  CQ YL3RZ KO06                         a1
235015 -11 1319  YL3RZ M0KEE IO81
235015  -6 2487  YL3RZ F4MZI -02 (x2)
235115  -7 1319  YL3RZ M0KEE 73
235115  -2 2486  YL3RZ F4MZI -02 (x3)

160m

UTC    dB Audio  Message
221900  +6 1866  CQ YL3RZ KO06 (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.

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