US0YA — 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: Ukraine Most frequent locator attributed to this token: KN28

Receiver-side FT8 activity involving US0YA, decoded by SO8OO in southeastern Poland. 176 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 12 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-10-23.

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 176 FT8 messages attributed to US0YA as the transmitting token by decoded message structure across 12 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (34%), followed by 40 m (33%) and 160 m (32%). Several six-hour UTC windows tied for the largest share (99%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (94%); the estimated median was +10 dB.

Overview

176

Messages attributed

UTC dates decoded

Active 15-min windows

+10 dB

Estimated median S/N

Bands

160m · 57 80m · 59 40m · 58 20m · 2

First attributed message: 2026-06-12
Last attributed message: 2026-10-23 18:26 UTC

Observed FT8 message patterns

Attributed sample: 176 messages
Active dates: 12 UTC dates
Estimated median S/N: +10 dB
Estimated 10th-90th percentile: -2 to +17 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 10, strong (≥ -8 dB) 166.

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 US0YA in decoded directed-looking exchanges:

RI1FJZ · Franz Josef Land ×2 JA8KSF · Japan JA9CHI · Japan JF8QNF · Japan JR2LJO · Japan F5PBG · France BV7SP · Taiwan DK1XAM · Fed. Rep. of Germany F1DSZ · France F6FHZ · France OK8UQ · Czech Republic SP7TF · Poland

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 US0YA

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: KN28 · 111 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 283 km (approx.)
Last such locator decoded: 2026-10-23 18:25 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	US0YA S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-23 18:25	80m	+20 / -	P4/WE9V	- / -4	2	Partial capture
10-23 18:18	80m	+26 / -	JA9RRH	- / -	2	Partial capture
10-06 19:52	80m	0 / -	C5R	- / -	10	Partial capture
10-06 19:32	80m	+17 / -	JA9PPC	- / -16	2	✓ Closing fragment
10-06 19:29	80m	+18 / -	BG2KSI	- / -	3	Partial capture
10-06 19:28	80m	+19 / -	VK3AMP	- / -17	3	✓ Closing fragment
10-06 19:24	80m	- / +3	DG0JW	-6 / -	3	Partial capture
10-06 19:23	80m	+16 / -	BA5AN	- / -7	3	✓ Closing fragment
10-02 18:01	40m	+5 / +5	TM4GGR	-4 / -4	5	✓ Full exchange observed
10-02 17:59	40m	-8 / -	SP7TF	- / -9	2	✓ Closing fragment
10-02 17:58	40m	-12 / -	F1DSZ	+4 / -	3	✓ Closing observed
10-02 17:57	40m	-14 / -	UT8IKN	- / -23	3	✓ Closing fragment
10-02 17:55	40m	-10 / -	OK8UQ	- / +10	2	✓ Closing fragment
10-02 17:49	40m	+1 / -	BV7SP	- / -9	5	✓ Closing fragment
10-02 17:45	40m	+2 / -	ZL3WPK	- / -22	4	✓ Closing fragment
09-28 17:03	80m	- / -	DO9YU	-10 / -	10	Partial capture
09-28 16:58	80m	- / -	R3ICU	-10 / -	2	Partial capture
09-28 16:56	80m	+11 / -	ZS6BUN	- / -17	3	✓ Closing fragment
09-23 17:20	40m	-4 / -	RI1FJZ	- / -	2	Partial capture
09-22 18:12	160m	+6 / -	RI1FJZ	- / +6	10	✓ Closing fragment
09-22 17:58	160m	+13 / -	JR2LJO	- / -12	2	✓ Closing fragment
09-22 17:53	160m	+15 / -11	JF8QNF	-10 / -2	5	✓ Full exchange observed
09-22 17:52	160m	+17 / -	JA9CHI	- / -7	2	✓ Closing fragment
09-22 17:52	160m	+16 / -	JA8KSF	- / -17	4	✓ Closing fragment
09-22 17:49	160m	+12 / -	JA4TKY	- / -	2	Partial capture
09-22 17:41	160m	+18 / -	JA4TKY	- / -	2	Partial capture
09-22 17:40	160m	+13 / -	JA6VQA	- / -	2	Partial capture
09-22 17:32	160m	+12 / -	RI1FJZ	- / -16	10	✓ Closing fragment
09-22 17:28	160m	+15 / -	RI1FJZ	- / -	4	Partial capture
09-18 17:10	40m	+12 / -	KH8WW	- / -	3	Partial capture
09-16 17:35	80m	+11 / -	RI1FJZ	- / -	9	Partial capture
09-16 17:30	80m	+6 / -	KH8WW	- / -	2	Partial capture
09-16 17:18	80m	+17 / -	RI1FJZ	- / -	3	Partial capture
09-16 17:13	80m	+11 / -	KH8WW	- / -	8	Partial capture
08-29 16:13	20m	- / -4	PD0WL	-15 / -	2	Partial capture
08-29 16:03	20m	- / +1	F5PBG	+4 / -	2	✓ Closing fragment
08-21 07:22	20m	- / 0	OZ/KD0NDU	-18 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
195245  -8 1588  C5R US0YA KN28 (x10)
181830 +24 2847  JA9RRH US0YA KN28 (x2)
182545 +18 2846  P4/WE9V US0YA KN28
182600 -11 1584  US0YA LZ936BA -12
182615 +22 2846  P4/WE9V US0YA R-04

10m

UTC    dB Audio  Message
161130  -8  288  US0YA C50A -17

40m

UTC    dB Audio  Message
175530  -9 2206  OK8UQ US0YA +10 (x2)
175700 -14 2207  UT8IKN US0YA KN28 (x3)
175815  +2  527  US0YA F1DSZ JN06
175900 -12 2207  F1DSZ US0YA RR73
175915  +5  527  US0YA F1DSZ 73
175930  -9 2207  SP7TF US0YA R-09 (x2)
180100  +8 2207  TM4GGR US0YA KN28
180115  -4  738  US0YA TM4GGR +05
180130  +5 2207  TM4GGR US0YA R-04
180145  -3  738  US0YA TM4GGR RR73
180200  +2 2207  TM4GGR US0YA 73

160m

UTC    dB Audio  Message
180530 +11 2289  CQ JA US0YA KN28 (x5)
181215  +5 2328  RI1FJZ US0YA KN28 (x10)

20m

UTC    dB Audio  Message
071400 -13 1803  US0YA RR73; RL3AM <...> -06
071800 -15 2323  <...> US0YA R-08
071915  +5 2323  US0YA LZ2VQ +01
072200 -12 1111  US0YA OZ/KD0NDU +00 (x2)
155900  -8 2804  US0YA UA0LQE PN53
160215  +6 2551  US0YA R9CP +01
160345  +5 2551  US0YA F5PBG R+01 (x2)
161315 -13 1578  US0YA PD0WL JO21 (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.

CW

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

Explore CW reception at SO8OO

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