YO2NAA — 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: Romania Most frequent locator attributed to this token: KN05

Receiver-side FT8 activity involving YO2NAA, decoded by SO8OO in southeastern Poland. 1,094 FT8 messages attributed to this token as transmitter, on 160m, 60m, 40m, 20m, across 44 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-22.

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 1,094 FT8 messages attributed to YO2NAA as the transmitting token by decoded message structure across 44 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (49%), followed by 40 m (35%) and 60 m (14%). Most decodes (85%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (73%); the estimated median was -3 dB.

Overview

1,094

Messages attributed

UTC dates decoded

168

Active 15-min windows

-3 dB

Estimated median S/N

Bands

160m · 534 60m · 148 40m · 387 20m · 25

First attributed message: 2026-06-07
Last attributed message: 2026-10-22 17:31 UTC

Observed FT8 message patterns

Attributed sample: 1,094 messages
Active dates: 44 UTC dates
Estimated median S/N: -3 dB
Estimated 10th-90th percentile: -13 to +7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 63, moderate (-15 to -9 dB) 229, strong (≥ -8 dB) 802.

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 YO2NAA in decoded directed-looking exchanges:

OM2WQ · Slovak Republic ×2 RI1FJZ · Franz Josef Land ×2 RU3FA · European Russia ×2 SP8DK · Poland ×2 4X5LL · Israel CT1EEX · Portugal DG4MCB · Fed. Rep. of Germany DL7ULA · Fed. Rep. of Germany EA1RJ · Spain EA8BS · Canary Islands EI2KM · Ireland F4BPO · France

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 YO2NAA

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: KN05 · 804 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 497 km (approx.)
Last such locator decoded: 2026-10-22 17:31 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	YO2NAA S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-22 17:29	60m	+2 / -	3B8FA	- / -	4	Partial capture
10-22 17:24	60m	+6 / -	3B8FA	- / -	5	Partial capture
10-22 16:56	60m	+9 / -	3B8FA	- / -	13	Partial capture
10-22 16:50	60m	+11 / -	3B8FA	- / -	7	Partial capture
10-21 20:29	60m	- / -19	GW4GJA	-9 / -	5	Partial capture
10-21 20:25	60m	- / -21	VE1YX	-12 / -	2	✓ Closing fragment
10-21 20:17	60m	- / -25	EG46PPA	-12 / -	3	Partial capture
10-21 20:05	160m	0 / -	9K2GR	- / -	3	Partial capture
10-21 19:53	160m	-4 / -7	RA6ABO	-20 / -	3	✓ Closing observed
10-21 19:52	160m	0 / -14	OH5KNL	-2 / -12	6	✓ Full exchange observed
10-21 19:47	160m	+6 / -	RM5P	- / -	3	Partial capture
10-21 19:38	160m	-2 / -	A93MO	- / -	2	Partial capture
10-21 19:30	160m	-2 / -	SP7ENZ	- / -19	2	✓ Closing fragment
10-21 19:28	160m	-6 / -	GM4JYB	- / -18	4	✓ Closing fragment
10-18 21:25	160m	0 / -	JR6EZE	- / -	2	Partial capture
10-18 21:23	160m	-1 / -	R8DX	- / -	5	Partial capture
10-18 21:17	160m	+5 / -	R9SY	- / -	2	Partial capture
10-18 20:57	160m	-7 / -19	RA0AF	-19 / -7	12	✓ Full exchange observed
10-18 20:51	160m	-4 / -	JI4JKO	- / -	2	Partial capture
10-18 20:49	160m	-3 / -	RA0AF	- / -	2	Partial capture
10-18 20:46	160m	-4 / -	JA0DAI	- / -	2	Partial capture
10-18 20:45	160m	+2 / -	JH0RNN	- / -	2	Partial capture
10-18 20:44	160m	-1 / -	EA8BS	- / -12	3	✓ Closing fragment
10-18 20:40	160m	0 / -	JI4JKO	- / -	2	Partial capture
10-18 20:37	160m	-20 / -	JA1QWT	- / -19	2	✓ Closing fragment
10-18 20:34	160m	-3 / -	JE1PHH	- / -	3	Partial capture
10-18 20:31	160m	-4 / -	JG1OGM	- / -	6	Partial capture
10-18 20:27	160m	-2 / -	JG1OGM	- / -	4	Partial capture
10-16 22:13	40m	0 / -	W2OK	- / -21	4	Partial capture
10-15 18:00	40m	+1 / -	JT1DN	- / -	3	Partial capture
10-15 17:58	40m	+4 / -	BG4OOO	- / -	3	Partial capture
10-15 17:56	40m	- / -	IN3JRZ	-9 / -	3	Partial capture
10-15 17:54	40m	- / -	IU4PPL	-14 / -	2	✓ Closing fragment
10-15 17:51	40m	+6 / -	4X5CG	- / -9	3	✓ Closing fragment
10-15 17:45	40m	0 / -	ZS2PA	- / -	2	Partial capture
10-15 17:43	40m	+1 / -	JT1DN	- / -	3	Partial capture
10-15 17:41	40m	+5 / -	ZS2PA	- / -	3	Partial capture
10-15 17:38	40m	+3 / -	ZL4KX	- / -	6	Partial capture
10-15 17:36	40m	-8 / -	UN7GGB	- / -	2	Partial capture
10-15 17:18	40m	- / -14	EU1CZ	+4 / -	2	✓ Closing fragment
10-14 19:14	40m	- / -2	R6AAG	-5 / -	3	Partial capture
10-14 18:42	40m	-11 / -	JH7JCX	- / -	2	Partial capture
10-14 18:35	40m	-3 / -	BH3HAO	- / -	2	Partial capture
10-14 17:03	60m	+2 / -	ZS6MGM	- / -17	7	Partial capture
10-14 16:55	60m	+7 / -	FW1P	- / -18	14	Partial capture
10-14 16:50	60m	+4 / -	FW1P	- / -	5	Partial capture
10-12 20:05	40m	- / -10	VK3AMP	-16 / -	3	✓ Closing fragment
10-12 17:33	40m	+1 / -	HF40BLP	- / -9	2	Partial capture
10-12 17:30	40m	-8 / -	EY7BM	- / -	2	Partial capture
10-12 17:24	40m	-4 / -	EY7BM	- / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
165930  +8  278  3B8FA YO2NAA KN05 (x15)

160m

UTC    dB Audio  Message
195330  +3 2152  OH5KNL YO2NAA R-12
195345 -21 1957  YO2NAA RA6ABO -07
195345  +0 2231  YO2NAA OH5KNL RR73
195400  -5 2152  OH5KNL YO2NAA 73
195415 -18 1956  YO2NAA RA6ABO -06
195500  -4 1957  RA6ABO YO2NAA 73
200500  +1 2505  9K2GR YO2NAA KN05 (x3)
200800  +0 2589  CQ DX YO2NAA KN05 (x6)

40m

UTC    dB Audio  Message
175430 -12 1382  YO2NAA IU4PPL JN54 (x2)
175600  -7 1383  YO2NAA IN3JRZ JN56 (x3)
175830  +0 2847  BG4OOO YO2NAA KN05 (x3)
180030  -2 2847  JT1DN YO2NAA KN05 (x3)
221315  -3 2736  W2OK YO2NAA KN05 (x4)

20m

UTC    dB Audio  Message
195100  -9 2592  KJ1R YO2NAA KN05
200015 -18 2108  JA2ODB YO2NAA KN05 (x4)
201345  -6 2108  8Z1IT YO2NAA 73
200345 -11 2478  D2IM YO2NAA KN05 (x5)
183930 -12 2981  YI1QEA YO2NAA KN05
161730 -16 1041  YO2NAA UA9QFF RR73 (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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