YO8AAZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Romania Most frequent locator attributed to this token: KN36

Receiver-side FT8 activity involving YO8AAZ, decoded by SO8OO in southeastern Poland. 2,573 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 75 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-10.

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 2,573 FT8 messages attributed to YO8AAZ as the transmitting token by decoded message structure across 75 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (42%), followed by 40 m (40%) and 20 m (11%). Most decodes (78%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (61%); the estimated median was -6 dB.

Overview

2,573

Messages attributed

UTC dates decoded

301

Active 15-min windows

-6 dB

Estimated median S/N

Bands

80m · 1,077 60m · 175 40m · 1,038 20m · 281 10m · 2

First attributed message: 2026-06-08
Last attributed message: 2026-10-10 04:04 UTC

Observed FT8 message patterns

Attributed sample: 2,573 messages
Active dates: 75 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -18 to +2.1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 421, moderate (-15 to -9 dB) 575, strong (≥ -8 dB) 1,577.

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 YO8AAZ in decoded directed-looking exchanges:

C31KC · Andorra ×2 7Q5BM · Malawi EA8UP · Canary Islands HB9ACA · Switzerland ZS6KVZ · South Africa RW6HPS · European Russia UN0GY · Kazakhstan BH6RWQ · China BI1HJR · China EU4U · Belarus HK3TY · Colombia JG3TRB · Japan

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 YO8AAZ

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: KN36 · 2,233 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 543 km (approx.)
Last such locator decoded: 2026-10-10 04:04 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	YO8AAZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-10 04:02	80m	-1 / -	KY2J	- / -	4	Partial capture
10-10 03:58	80m	-2 / -	KY2J	- / -	3	Partial capture
10-09 17:05	60m	-5 / -	US2YW	- / -	12	Partial capture
10-09 17:01	60m	-11 / -10	ER1CW	-14 / -12	6	Partial capture
10-09 17:00	80m	- / -8	ON4CAS	-13 / -	10	Partial capture
10-08 16:52	80m	-10 / +1	YO8CRU	-4 / +1	5	✓ Full exchange observed
10-08 16:50	80m	-5 / -	RN4HAB	- / -	5	Partial capture
10-08 16:44	80m	0 / -6	RA2FU	-10 / -14	3	✓ Full exchange observed
10-07 15:52	80m	-8 / -	AP2HA	- / -	4	Partial capture
10-07 03:19	40m	-13 / -	C5R	- / -	7	Partial capture
10-06 17:16	40m	-13 / -7	EU4U	+7 / -7	5	✓ Full exchange observed
10-06 16:35	40m	-20 / -	M1DBB	-10 / -17	3	✓ Closing observed
10-06 14:51	40m	-4 / -	YO8ROM	- / -	8	Partial capture
10-05 17:39	80m	-15 / -	RZ0SW	- / -	4	Partial capture
10-05 17:32	80m	-10 / -	RZ0SW	- / -	6	Partial capture
10-05 17:27	80m	-12 / -	EA5DKT	- / -10	6	Partial capture
10-05 17:22	40m	-23 / -	YC6BCA	- / -	2	Partial capture
10-05 16:49	40m	- / -24	EA1KCN	-7 / -	32	Partial capture
10-05 16:43	40m	-7 / -	YC6BCA	- / -	19	Partial capture
10-05 16:41	40m	-4 / +8	LZ936BA	+1 / +5	3	Partial capture
10-05 03:36	40m	-5 / -	7Q7CT	- / -18	9	Partial capture
10-05 03:19	40m	-3 / -	9J2FI	- / -	23	Partial capture
10-04 03:46	80m	-5 / -	K4YT	- / -	9	Partial capture
10-04 03:32	80m	0 / -	HI3T	- / -	3	Partial capture
10-02 03:34	80m	-5 / -	AA6KJ	- / -	8	Partial capture
10-01 17:29	40m	-5 / -	LX1RFJ	- / -13	4	Partial capture
10-01 16:57	40m	-3 / -	MW0MPD	-19 / -18	3	✓ Closing observed
10-01 16:44	40m	-7 / -	RW0AE	- / -	3	Partial capture
10-01 16:35	80m	-14 / -	EY8BL	- / -	8	Partial capture
10-01 16:31	80m	-6 / -	UN0GY	- / -12	2	Partial capture
10-01 16:26	80m	+2 / -	UN7CL	- / -	7	Partial capture
10-01 16:04	40m	-2 / -	BG5JKZ	- / -	8	Partial capture
10-01 15:59	40m	-1 / -	BG9IVV	- / -18	8	Partial capture
09-30 06:04	80m	-11 / -	EA6Y	- / -	12	Partial capture
09-29 03:23	40m	- / -22	N7NU/VP9	-16 / -	4	Partial capture
09-28 15:37	40m	-1 / -	RW0AE	- / -	5	Partial capture
09-28 15:32	40m	-3 / -	R8KAA	- / -23	6	Partial capture
09-27 06:17	40m	-8 / -	3V8HP	- / -	15	Partial capture
09-27 06:05	40m	-12 / -	3V8HP	- / -	14	Partial capture
09-25 06:08	40m	-8 / -	FK8HC	- / -	4	Partial capture
09-25 05:46	80m	-12 / -	ZL3IO	- / -	5	Partial capture
09-24 16:00	40m	-10 / -	BD8FOD	- / -	5	Partial capture
09-22 17:24	80m	-10 / -	RI1FJZ	- / -	2	Partial capture
09-22 17:12	80m	-15 / -	RI1FJZ	- / -	9	Partial capture
09-22 16:55	80m	-12 / -	RI1FJZ	- / -	24	Partial capture
09-22 03:29	80m	-15 / -13	GM6URC	-12 / -6	7	✓ Full exchange observed
09-22 03:20	80m	-3 / -	YV6BXN	- / -	15	Partial capture
09-21 20:15	80m	-8 / -	RI1FJZ	- / -	8	Partial capture
09-21 19:58	80m	-9 / -	RI1FJZ	- / -	28	Partial capture
09-21 19:53	80m	-4 / -	RI1FJZ	- / -	5	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
170100 -16 1558  YO8AAZ ON4CAS -08 (x8)
035830  -8 1916  KY2J YO8AAZ KN36 (x7)

60m

UTC    dB Audio  Message
170300 -13 1963  ER1CW YO8AAZ KN36
170315 -14 1605  YO8AAZ ER1CW -10
170330  -8 1963  ER1CW YO8AAZ R-12
170515  -2 1963  US2YW YO8AAZ KN36 (x12)

40m

UTC    dB Audio  Message
163545 -17 1892  M1DBB YO8AAZ KN36 (x2)
163630 -10 2475  YO8AAZ M1DBB RR73
171630 -14 1893  EU4U YO8AAZ KN36
171645  +2 2722  YO8AAZ EU4U -07
171700 -12 1893  EU4U YO8AAZ R-07
171715  +9 2722  YO8AAZ EU4U RR73 (x2)
031915 -19 1920  C5R YO8AAZ KN36 (x7)

10m

UTC    dB Audio  Message
093430  -7 2134  YO8AAZ HB9ACA RR73
102230 -17 1286  YO8AAZ ZS6KVZ -20 (x2)
142200 -16 1848  YO8AAZ 7Q5BM RR73
145145 -15 1781  YO8AAZ EA8UP -24 (x2)
121345 +13  428  YO8AAZ IU2VBP JN45 (x6)
074000 -17 1771  YO8AAZ EX7CQ -09
074030 -19 1771  YO8AAZ RR73; YO3GEK <...> +08
092100 -20 2161  YO8AAZ <...> -10

20m

UTC    dB Audio  Message
152515  -6 1980  TJ1GD YO8AAZ KN36 (x14)
155645 -20 1979  ES3BH YO8AAZ R-13

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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