YU3RS — 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: Serbia Most frequent locator attributed to this token: KN04

Receiver-side FT8 activity involving YU3RS, decoded by SO8OO in southeastern Poland. 401 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 18 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-25.

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 401 FT8 messages attributed to YU3RS as the transmitting token by decoded message structure across 18 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (60%), followed by 20 m (40%). Most decodes (54%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.

Overview

401

Messages attributed

UTC dates decoded

Active 15-min windows

-7 dB

Estimated median S/N

Bands

40m · 241 20m · 160

First attributed message: 2026-06-06
Last attributed message: 2026-09-25 16:56 UTC

Observed FT8 message patterns

Attributed sample: 401 messages
Active dates: 18 UTC dates
Estimated median S/N: -7 dB
Estimated 10th-90th percentile: -14 to +7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 28, moderate (-15 to -9 dB) 135, strong (≥ -8 dB) 238.

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 YU3RS in decoded directed-looking exchanges:

A61DD · United Arab Emirates ×2 CT3IQ · Madeira Islands ×2 R3SN · European Russia ×2 M7MJW · England N1FST · United States OH0ERF · Aland Islands 4X1UF · Israel CR7BRV · Portugal DJ2MS · Fed. Rep. of Germany DL1IP · Fed. Rep. of Germany E73ZR · Bosnia-Herzegovina EA5KB · Spain

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 YU3RS

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: KN04 · 204 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 608 km (approx.)
Last such locator decoded: 2026-09-25 16:56 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	YU3RS S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-18 00:43	40m	- / -	RZ4FWA	-9 / -	4	Partial capture
10-18 00:40	40m	- / -19	UK8OM	-7 / -	3	✓ Closing fragment
09-29 18:56	40m	- / -6	HB9ELE	+8 / -	2	✓ Closing fragment
09-25 16:56	40m	-4 / +2	OM8GT	-16 / -3	3	Partial capture
09-25 16:49	40m	-2 / -	Z34PEC	- / -8	3	✓ Closing fragment
09-25 16:48	40m	-5 / -	DJ2MS	- / -20	3	✓ Closing fragment
09-25 16:29	40m	- / -6	R6LFO	-6 / -	3	Partial capture
09-25 16:24	40m	-9 / -	E73ZR	-10 / 0	4	✓ Closing observed
09-25 16:18	40m	-8 / -	HA5AZD	- / -5	4	✓ Closing fragment
09-25 16:17	40m	-11 / -6	YO2UKG	-6 / -9	5	✓ Full exchange observed
09-22 22:57	40m	- / -12	R6ODX	+10 / -	2	✓ Closing fragment
09-22 22:55	40m	- / -10	RA0SCA	-10 / -	2	✓ Closing fragment
09-22 22:44	40m	- / -15	K2UO	-7 / -	2	Partial capture
09-22 22:26	40m	- / -2	RD3FY	+1 / -	5	✓ Closing fragment
09-22 22:25	40m	- / -3	F6EAZ	-6 / -	3	✓ Closing fragment
09-22 22:23	40m	- / -	PD0LBY	-5 / -	3	Partial capture
09-20 23:27	40m	- / -1	G8KHF	+7 / -	4	Partial capture
09-20 23:02	40m	- / -6	NF1O	-8 / -	2	Partial capture
09-20 22:58	40m	- / -11	JY5IB	-19 / -	2	Partial capture
09-20 22:54	40m	- / -5	EA5KB	-7 / -	2	✓ Closing fragment
09-20 22:44	40m	- / -7	A61DD	-1 / -	13	✓ Closing fragment
09-20 22:43	40m	- / -	EB3JT	-5 / -	7	Partial capture
09-20 22:42	40m	- / -4	R3SN	0 / -	2	✓ Closing fragment
09-20 22:38	40m	- / -8	CT3IQ	-18 / -	4	✓ Closing fragment
09-20 22:33	40m	- / -15	A61DD	-3 / -	10	Partial capture
09-20 22:23	40m	- / -14	A61DD	-5 / -	6	✓ Closing fragment
09-20 22:19	40m	- / -5	M0OVG	-7 / -	7	✓ Closing fragment
09-20 22:17	40m	- / -6	EA1Y	-19 / -	2	Partial capture
09-20 22:00	40m	- / -	BI1LWV	-16 / -	2	Partial capture
09-20 22:00	40m	- / -2	PD4RJ	-22 / -	2	Partial capture
09-20 21:53	40m	- / -9	RY3F	+2 / -	2	✓ Closing fragment
09-20 21:52	40m	- / -	HZ1TT	-6 / -	2	✓ Closing fragment
09-10 06:26	40m	-9 / -14	HB9XBY	-9 / -	9	Partial capture
09-10 06:20	40m	-8 / -5	GJ0KYZ	-1 / -17	7	✓ Full exchange observed
09-10 06:08	40m	-10 / -14	ON4AOI	-2 / -	4	✓ Closing observed
09-06 23:29	40m	-16 / -	PD0LBY	-4 / -18	5	Partial capture
09-06 23:28	40m	- / -	N1SSN	-16 / -	9	Partial capture
09-06 23:27	40m	-18 / -	F5PBG	-2 / -17	7	Partial capture
09-06 23:26	40m	-18 / -	SP6SR	- / -	2	✓ Closing fragment
09-06 23:25	40m	-20 / -	SP3SWJ	- / -14	2	✓ Closing fragment
09-06 23:23	40m	-16 / -6	CR7BRV	-3 / -17	4	✓ Full exchange observed
09-06 22:27	40m	- / +2	R4ZZ	-12 / -	3	✓ Closing fragment
09-06 22:27	40m	- / -	RL3K	-12 / -	5	Partial capture
09-06 22:25	40m	- / -13	YO4NF	+6 / -	2	Partial capture
09-06 22:24	40m	- / -	F5PBG	-8 / -	4	Partial capture
09-06 22:24	40m	-18 / -4	R2EA	+2 / -	3	✓ Closing observed
09-06 22:14	40m	- / -	PD0LBY	-7 / -	7	Partial capture
09-06 22:13	40m	- / +3	SM7TZK	-5 / -	3	✓ Closing fragment
09-06 22:12	40m	- / -15	YO4NF	+8 / -	2	Partial capture
09-05 08:12	40m	-4 / -	OE5GTE	- / -	11	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
164945  -5  716  Z34PEC YU3RS KN04 (x3)
165600  -7  689  OM8GT YU3RS KN04
165615 -16 2255  YU3RS OM8GT +02
165630  +0  689  OM8GT YU3RS R-03
185615  +3  695  YU3RS HB9ELE -06 (x2)
004000  -9 2091  YU3RS UK8OM -19 (x3)
004300  -4 1773  YU3RS RZ4FWA LO23 (x4)

20m

UTC    dB Audio  Message
223300  -9 1378  OH0ERF YU3RS KN04 (x4)
223745  -6 1378  EA6C YU3RS KN04
223930  -7 1378  N1FST YU3RS KN04 (x4)
224415  -4  902  SV5BYP YU3RS KN04
224430 -15 1809  YU3RS SV5BYP -07
224645  -9  902  JA1XIA YU3RS -13
060700 -10 1191  M7MJW YU3RS R-24 (x3)

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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