YO9BLY — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Romania

Receiver-side FT8 activity involving YO9BLY, decoded by SO8OO in southeastern Poland. 73 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-07-10 and 2026-08-01.

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 73 FT8 messages attributed to YO9BLY as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (97%), followed by 40 m (3%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-13 dB

Estimated median S/N

Bands

40m · 2 20m · 71

First attributed message: 2026-07-10
Last attributed message: 2026-08-01 03:55 UTC

Observed FT8 message patterns

Attributed sample: 73 messages
Active dates: 6 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -21 to -7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 22, moderate (-15 to -9 dB) 40, strong (≥ -8 dB) 11.

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 YO9BLY in decoded directed-looking exchanges:

KB2OBF · United States KE8ZKN · United States KK0DX · United States KP4PW · United States KS4NG · United States N1LYP · United States NA4BB · United States VE3FF · Canada VK3UBK · Australia VK6BAD · Australia W4GGJ · United States W8IO · United States

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	YO9BLY S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-01 03:53	20m	-11 / -	K5KUA	- / -13	2	Partial capture
08-01 03:39	20m	- / -	R7MP	-6 / -	2	Partial capture
07-31 03:16	20m	- / -9	VE3FF	-8 / -	2	✓ Closing fragment
07-30 03:56	20m	-16 / -	W3UNX	- / -7	2	Partial capture
07-30 03:54	20m	-15 / -	W9MJ	- / -7	2	✓ Closing fragment
07-30 03:50	20m	-14 / -	NA4BB	- / -8	2	✓ Closing fragment
07-30 03:46	20m	-12 / -	KK0DX	- / -5	2	✓ Closing fragment
07-30 03:44	20m	-13 / -	W8IO	- / -4	2	✓ Closing fragment
07-30 03:39	20m	-13 / -	TI5CBS	- / -9	2	Partial capture
07-29 03:56	20m	- / -	R6FX	-22 / -	4	Partial capture
07-25 03:50	20m	-10 / -	KB0RFC	- / -17	2	Partial capture
07-25 03:48	20m	-12 / -	KN1OBI	- / -6	2	Partial capture
07-13 14:56	10m	- / -	DG3YDE	-8 / -	3	Partial capture
07-11 04:18	20m	-18 / -	VK4MA	- / -7	2	Partial capture
07-11 04:12	20m	-9 / -	VK2VMP	- / -16	3	Partial capture
07-11 04:09	20m	-14 / -	KE8ZKN	- / -9	2	✓ Closing fragment
07-11 04:07	20m	-7 / -	VK3UBK	- / -16	4	✓ Closing fragment
07-11 04:05	20m	-17 / -	KB2OBF	- / -7	2	✓ Closing fragment
07-11 04:03	20m	-10 / -	W9LHF	- / -7	3	✓ Closing fragment
07-11 03:56	20m	-15 / -	VK6BAD	- / -15	3	✓ Closing fragment
07-11 03:54	20m	-13 / -	WE2N	- / -5	3	✓ Closing fragment
07-11 03:51	20m	-24 / -	W4GGJ	- / -2	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
035815 -22 2210  W1FAM YO9BLY -13
031645  -7 2718  YO9BLY VE3FF R-09
031715 -11  537  YO9BLY WD8LOE R-09
031715  -8 2717  YO9BLY VE3FF 73
033830 -19 1688  VK3FWR YO9BLY -19
033915  -6 1339  YO9BLY R7MP LN17 (x2)
034800 -24 1696  KP4CRN YO9BLY -07
034945 -21 1696  N5API YO9BLY -08
035130 -24 2016  KJ5MPL YO9BLY -04
035245 -15 1705  KQ4MUG YO9BLY -06
035345 -11 1029  K5KUA YO9BLY -13 (x2)
035545 -12 2182  KR3Y YO9BLY -06
035630 -13 1220  YO9BLY R6FX LN14

10m

UTC    dB Audio  Message
142830 -10  635  YO9BLY DK8HC JO42
145600 -10  638  YO9BLY DG3YDE JO42 (x3)

40m

UTC    dB Audio  Message
034845 -20 2170  OA4ENG YO9BLY -18
034945 -15 1533  PV8AJ YO9BLY RR73

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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