YO9IBC — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Romania Most frequent locator attributed to this token: KN23

Receiver-side FT8 activity involving YO9IBC, decoded by SO8OO in southeastern Poland. 918 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 50 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-17.

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 918 FT8 messages attributed to YO9IBC as the transmitting token by decoded message structure across 50 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (74%), followed by 20 m (26%). Most decodes (54%) fell within the six-hour window 14:00-20:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (75%); the estimated median was -3.7 dB.

Overview

918

Messages attributed

UTC dates decoded

177

Active 15-min windows

-3.7 dB

Estimated median S/N

Bands

40m · 676 20m · 242

First attributed message: 2026-06-06
Last attributed message: 2026-09-17 14:40 UTC

Observed FT8 message patterns

Attributed sample: 918 messages
Active dates: 50 UTC dates
Estimated median S/N: -3.7 dB
Estimated 10th-90th percentile: -15.4 to +6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 91, moderate (-15 to -9 dB) 142, strong (≥ -8 dB) 685.

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 YO9IBC in decoded directed-looking exchanges:

JY5IB · Jordan ×2 3W9A · Vietnam 8Q7PR · Maldives BG5GFU · China EA1UY · Spain EA3HMM · Spain EA8UP · Canary Islands EB1DJ · Spain F8WAJ · France HB9DGZ · Switzerland IK4LZH · Italy IT9SVJ · Sicily

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 YO9IBC

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: KN23 · 595 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 756 km (approx.)
Last such locator decoded: 2026-09-17 14:39 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	YO9IBC S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 01:29	40m	- / -14	ON8WR	-11 / -	5	✓ Closing fragment
09-17 14:39	40m	-2 / -	IK2EST	- / 0	3	✓ Closing fragment
09-17 14:22	40m	-2 / -	DL1KWB	- / -	2	Partial capture
09-17 14:19	40m	-2 / 0	SQ9SET	0 / +3	4	✓ Full exchange observed
09-17 14:17	40m	-8 / -10	HA7JLR	-2 / -	7	✓ Closing observed
09-17 14:12	40m	0 / -	IW2MLJ	- / -	2	Partial capture
09-15 04:13	40m	-5 / -20	SM7TZK	-2 / -9	8	✓ Full exchange observed
09-15 03:54	40m	- / -	UB3DQR	-10 / -	2	✓ Closing fragment
09-15 03:53	40m	- / -3	UA3PAB	+5 / -	4	✓ Closing fragment
09-14 04:02	40m	+2 / -	LX1TI	- / +4	8	✓ Closing fragment
09-12 04:58	40m	-6 / -	IU8RFW	-12 / +1	5	✓ Closing observed
09-12 04:58	40m	-6 / -	YO2CK	+6 / -7	3	✓ Closing observed
09-12 04:52	40m	-12 / -	UR9QQ	-14 / -	3	✓ Closing observed
09-12 04:50	40m	-2 / -9	SP2GK	-6 / -1	8	✓ Full exchange observed
09-12 04:39	40m	+6 / -	YV6BXN	- / -	2	Partial capture
09-10 03:29	40m	- / -9	R6FX	0 / -	4	✓ Closing fragment
09-10 03:17	40m	- / -	UR4QWW	-15 / -	4	Partial capture
09-06 02:05	40m	- / -3	R3SN	-3 / -	2	✓ Closing fragment
09-06 01:58	40m	- / -	RZ4FWA	-16 / -	3	✓ Closing fragment
09-06 01:57	40m	- / -18	F1PBZ	+1 / -	3	Partial capture
09-06 01:54	40m	-7 / +1	T77NC	+5 / -5	5	✓ Full exchange observed
09-04 02:23	40m	- / -12	UB6HJZ	-18 / -	4	✓ Closing fragment
09-04 02:11	40m	- / -14	A41KB	-9 / -	3	✓ Closing fragment
09-02 04:39	40m	-4 / -11	LZ936BA	+1 / -2	3	Partial capture
09-02 04:28	40m	+3 / -18	Z33F	-4 / -12	8	✓ Full exchange observed
09-02 04:24	40m	+3 / -	Z33F	- / -	3	Partial capture
08-26 16:49	20m	- / -5	IU5TPM	-1 / -	4	✓ Closing fragment
08-26 16:37	40m	+5 / -	II7MGMU	- / -6	2	Partial capture
08-26 16:36	40m	+3 / -	OZ/KD0NDU	- / -	2	Partial capture
08-26 16:31	40m	-4 / -	OZ/KD0NDU	- / -	2	Partial capture
08-26 07:46	20m	- / -17	JY5IB	-17 / -	2	✓ Closing fragment
08-23 19:11	40m	+3 / -	EA8J	- / -	6	Partial capture
08-23 19:08	40m	-4 / -6	YT2FA	-12 / +10	4	✓ Full exchange observed
08-23 01:18	20m	-4 / -20	OZ2SPACE	-4 / -19	9	Partial capture
08-23 00:56	20m	-7 / -12	EB1DJ	-14 / -11	5	✓ Full exchange observed
08-23 00:50	20m	-1 / -	KP3B	- / -17	5	✓ Closing fragment
08-22 04:07	40m	-6 / -5	DJ4WM	-8 / -	3	✓ Closing observed
08-22 03:40	20m	- / -11	V31DL	-24 / -	2	✓ Closing fragment
08-17 18:12	20m	- / -	UR4QWW	-3 / -	4	Partial capture
08-17 18:09	20m	- / -2	IT9SVJ	-18 / -	7	✓ Closing fragment
08-17 17:53	20m	-12 / -	JH0BBA	- / -18	5	Partial capture
08-17 17:40	20m	- / -	F8WAJ	-10 / -	2	✓ Closing fragment
08-11 15:13	20m	-8 / -	XU7O	- / -	2	Partial capture
08-06 03:58	40m	0 / -	YO9IAB	- / -	2	Partial capture
08-06 03:56	40m	0 / -	D2UY	- / -	2	Partial capture
08-04 18:23	40m	-15 / -	ER3UA	-12 / -	5	✓ Full exchange observed
08-04 03:12	40m	-18 / -	CO8TW	- / -	5	Partial capture
08-04 02:51	40m	- / -9	9K2YM	-12 / -	2	✓ Closing fragment
07-30 13:43	20m	-21 / -	BG5JGG	- / -	2	Partial capture
07-30 08:13	20m	-20 / -	SV5BYP	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
141945  -2  885  SQ9SET YO9IBC KN23
142000  +0  884  YO9IBC SQ9SET +00
142015  -1  885  SQ9SET YO9IBC R+03
142030  +0  884  YO9IBC SQ9SET RR73
142230  -4 1216  DL1KWB YO9IBC KN23 (x2)
143900  -1 1641  EW6MP YO9IBC KN23
143930  -1 1773  IK2EST YO9IBC KN23 (x3)
012915 -11 1239  YO9IBC ON8WR -14 (x5)

20m

UTC    dB Audio  Message
011800  -7 2445  YO9IBC OZ2SPACE -20
011815  -9 2445  OZ2SPACE YO9IBC KN23
011830  -7 2445  YO9IBC OZ2SPACE -20
011845  -3 2444  OZ2SPACE YO9IBC KN23
011900  +0 2445  YO9IBC OZ2SPACE -20
011915  +1 2444  OZ2SPACE YO9IBC KN23
011930  -2 2445  YO9IBC OZ2SPACE -20
011945  -3 2444  OZ2SPACE YO9IBC R-19 (x2)
074615 -16 1145  YO9IBC JY5IB -17 (x2)
164930  -5 1445  YO9IBC IU5TPM JN53 (x4)

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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