YL35ZS — 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: Latvia

Receiver-side FT8 activity involving YL35ZS, decoded by SO8OO in southeastern Poland. 509 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-08-17 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 509 FT8 messages attributed to YL35ZS as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (55%), followed by 160 m (29%) and 40 m (10%). Most decodes (94%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (78%); the estimated median was +1 dB.

Overview

509

Messages attributed

UTC dates decoded

Active 15-min windows

+1 dB

Estimated median S/N

Bands

160m · 150 80m · 281 40m · 53 20m · 25

First attributed message: 2026-08-17
Last attributed message: 2026-08-23 21:03 UTC

Observed FT8 message patterns

Attributed sample: 509 messages
Active dates: 6 UTC dates
Estimated median S/N: +1 dB
Estimated 10th-90th percentile: -18 to +8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 73, moderate (-15 to -9 dB) 40, strong (≥ -8 dB) 396.

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 YL35ZS in decoded directed-looking exchanges:

II7MGXX · Italy ×4 OZ/KD0NDU · Denmark ×4 DO7TTR/P · Fed. Rep. of Germany ×4 R1530IG · European Russia ×4 R2EA/P · European Russia ×3 DL8MAK/P · Fed. Rep. of Germany ×3 R3PLN/P · European Russia ×3 II7MGBA · Italy ×3 UF4S/P · European Russia ×3 HA7TM · Hungary ×2 GB64MOD · Wales ×2 DB100FT · Fed. Rep. of Germany ×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.

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	YL35ZS S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-23 20:54	160m	- / -	RA3WY	-1 / -	4	Partial capture
08-23 20:54	160m	+5 / -	<...>	-6 / -	4	✓ Closing fragment
08-23 20:49	160m	+2 / -	<...>	-16 / -	2	✓ Closing fragment
08-23 20:03	160m	+5 / -	<...>	-4 / -	4	✓ Closing fragment
08-23 19:32	80m	+8 / -	CS7/PD1ABC	-11 / -	2	✓ Closing observed
08-23 19:25	80m	+1 / -	<...>	- / -	3	Partial capture
08-23 19:19	80m	+3 / -	<...>	+2 / -	6	✓ Closing fragment
08-23 19:07	80m	+2 / -	<...>	0 / -	10	✓ Closing fragment
08-23 18:58	80m	-6 / -	<...>	-11 / -	6	✓ Closing fragment
08-23 18:43	80m	+3 / -	R1530IG	-4 / -	12	✓ Closing observed
08-22 20:46	160m	- / -	IZ3GOG	+4 / -	2	Partial capture
08-22 20:41	160m	+5 / -	<...>	-7 / -	16	✓ Closing fragment
08-22 20:38	160m	+2 / -	HA7TM	+10 / -	3	✓ Closing observed
08-22 20:35	160m	- / -7	ER3UA	+2 / -	2	Partial capture
08-22 20:34	160m	-1 / -	<...>	-4 / -	5	✓ Closing fragment
08-22 20:30	160m	- / +5	DL5MG	+2 / -	2	Partial capture
08-22 20:26	160m	+3 / -	<...>	-4 / -	9	✓ Closing fragment
08-22 20:25	160m	+4 / -	ES8JX	- / -	3	✓ Closing fragment
08-22 20:22	160m	+1 / -	<...>	+3 / -	3	✓ Closing fragment
08-22 19:18	80m	+2 / -	<...>	-2 / -	5	✓ Closing fragment
08-22 19:04	80m	+4 / -	<...>	+4 / -	9	✓ Closing fragment
08-22 18:56	80m	+4 / -	<...>	+4 / -	5	✓ Closing fragment
08-22 18:51	80m	+4 / -	<...>	-16 / -	2	✓ Closing fragment
08-22 18:42	80m	+4 / -	<...>	-4 / -	5	✓ Closing fragment
08-22 18:26	80m	+3 / -	<...>	-8 / -	3	✓ Closing fragment
08-22 18:17	80m	+5 / -	<...>	+7 / -	3	✓ Closing fragment
08-22 18:05	80m	+7 / -	<...>	+2 / -	9	✓ Closing fragment
08-22 17:50	80m	+1 / -	<...>	-13 / -	3	✓ Closing fragment
08-22 16:57	40m	-10 / -	OZ/KD0NDU	+3 / -	5	✓ Closing observed
08-22 16:21	20m	- / -	<...>	-3 / -	2	✓ Closing fragment
08-22 15:44	20m	-11 / -	<...>	+5 / -	2	✓ Closing fragment
08-21 22:13	40m	- / -	<...>	-7 / -	2	✓ Closing fragment
08-21 22:10	160m	+6 / -	<...>	-7 / -	13	✓ Closing fragment
08-21 21:35	160m	+4 / -	<...>	0 / -	11	✓ Closing fragment
08-21 21:29	160m	+4 / +4	SO1CJ	-7 / -3	4	Partial capture
08-21 21:27	160m	- / -	RA9MAI	-15 / -	2	Partial capture
08-21 21:26	160m	+5 / -	<...>	-8 / -	8	✓ Closing fragment
08-21 19:44	80m	+2 / -	<...>	- / -	3	✓ Closing fragment
08-21 19:30	80m	+1 / -	<...>	+3 / -	2	✓ Closing fragment
08-21 19:25	80m	-2 / -	UF4S/P	+8 / -	3	✓ Closing observed
08-21 18:22	40m	-14 / -	II7MGXX	-12 / -	2	✓ Closing observed
08-21 18:06	40m	-11 / -	<...>	+4 / -	3	✓ Closing fragment
08-21 09:23	10m	- / -	<...>	-4 / -	2	✓ Closing fragment
08-21 06:49	20m	-19 / -	<...>	-3 / -	2	✓ Closing fragment
08-20 20:24	80m	-18 / -	OZ/KD0NDU	- / -	3	✓ Closing fragment
08-20 20:15	80m	-22 / -	KD0NDU	- / -	2	✓ Closing fragment
08-20 20:07	80m	-10 / -	OZ/KD0NDU	+1 / -	2	✓ Closing observed
08-20 20:02	80m	- / -	OZ/KD0NDU	+7 / -	2	✓ Closing fragment
08-20 19:46	80m	-18 / -	<...>	+9 / -	2	✓ Closing fragment
08-20 19:43	40m	- / -14	JA3FYC	-15 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
205530  -4 2017  CQ YL35ZS
205545  -4 1596  YL35ZS RA3WY KO81 (x2)
205630  +3 2017  <...> YL35ZS RR73
205700  +7 2017  CQ YL35ZS (x2)
205830  +6 2088  <...> YL35ZS RR73
205930  +6 2088  CQ YL35ZS (x8)

80m

UTC    dB Audio  Message
192445  +3 1203  CQ YL35ZS (x2)
192545  +2 1203  <...> YL35ZS (x3)
192715  +4 1203  CQ YL35ZS (x3)
193215  +8 1203  CS7/PD1ABC YL35ZS RR73
193230 -11 1203  YL35ZS CS7/PD1ABC 73
193245  +8 1202  CQ YL35ZS (x5)

40m

UTC    dB Audio  Message
170315  -9  838  OZ/KD0NDU YL35ZS 73
170345  -5  838  CQ YL35ZS (x6)
091245 -18 2237  YL35ZS <...> 73 (x3)
175115  -5  726  CQ YL35ZS
175215  -8  726  <...> YL35ZS RR73
175315  -7  555  CQ YL35ZS (x2)
175600  +2  555  YL35ZS <...> 73

20m

UTC    dB Audio  Message
155830  -4 2777  YL35ZS <...> 73 (x2)
160515 -18 2669  CQ YL35ZS (x3)
162130  -9 2666  YL35ZS <...> 73 (x3)
163615 -17 2669  CQ YL35ZS
143230 +14 2997  YL35ZS DK9BM/P 73
145630 +11 2379  YL35ZS F4GCB/P RR73
151000 -16 2470  YL35ZS <...> 73 (x2)
152800  +5 1851  YL35ZS M7YRF/P 73
161400  +7  702  YL35ZS <...> 73

10m

UTC    dB Audio  Message
091830 -23 1488  YL35ZS <...> 73 (x2)
092500 -15 1487  <YL35ZS> IK2EBP JN45
092500  -8 1401  YL35ZS <...> 73 (x12)

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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