YB3BBF — 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: Indonesia Most frequent locator attributed to this token: OI72

Receiver-side FT8 activity involving YB3BBF, decoded by SO8OO in southeastern Poland. 20 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-08-23 and 2026-09-05.

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 20 FT8 messages attributed to YB3BBF as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (90%), followed by 20 m (10%). Most decodes (95%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (90%); the estimated median was -18 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-18 dB

Estimated median S/N

Bands

40m · 18 20m · 2

First attributed message: 2026-08-23
Last attributed message: 2026-09-05 22:57 UTC

Observed FT8 message patterns

Attributed sample: 20 messages
Active dates: 4 UTC dates
Estimated median S/N: -18 dB
Estimated 10th-90th percentile: -21 to -16 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 18, moderate (-15 to -9 dB) 2, strong (≥ -8 dB) 0.

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 YB3BBF in decoded directed-looking exchanges:

EW8AAC · Belarus ×2 7Z1DZ · Saudi Arabia CN8NS · Morocco CN8WK · Morocco CR7BRV · Portugal 9A3MRN · Croatia DF2RG · Fed. Rep. of Germany EA1AUO · Spain EA5JLB · Spain EA8AID · Canary Islands EG5DX · Spain HI3RRR · Dominican Republic

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 YB3BBF

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: OI72 · 13 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 10,874 km (approx.)
Last such locator decoded: 2026-09-05 22:56 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	YB3BBF S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-23 22:21	40m	- / -16	EA5JLB	-11 / -	11	✓ Closing fragment
10-22 12:09	10m	- / -10	CT7AUT	-9 / -	3	Partial capture
10-13 13:51	10m	- / -13	CR7BRV	+6 / -	2	✓ Closing fragment
09-23 09:42	10m	- / -10	CN8WK	-7 / -	2	✓ Closing fragment
09-21 19:42	40m	- / -13	9A3MRN	+18 / -	2	✓ Closing fragment
09-21 18:57	40m	- / -21	LZ2PC	+1 / -	4	✓ Closing fragment
09-10 19:10	80m	- / -	DJ7M	+16 / -	3	Partial capture
09-05 22:56	40m	-20 / -	J38DX	- / -16	2	Partial capture
09-01 22:36	40m	- / -13	IR7MGGC	-15 / -	2	Partial capture
08-30 13:26	10m	- / -	F1JPG	-9 / -	2	Partial capture
08-29 22:59	40m	- / -18	IR7MGGC	-3 / -	3	Partial capture
08-27 22:56	40m	- / -17	CN8NS	-16 / -	2	Partial capture
08-26 23:10	20m	- / -16	IR7MGGC	-6 / -	2	Partial capture
08-26 23:00	20m	- / -17	IR7MGGC	-9 / -	2	Partial capture
08-24 22:34	40m	-17 / -	XU7AKP	- / -	7	Partial capture
08-24 18:01	40m	- / -13	II7MGBT	-5 / -	2	Partial capture
08-24 17:58	40m	- / -13	EA2AA	-13 / -	7	Partial capture
08-24 17:38	40m	-16 / -	EG5DX	-16 / -9	3	✓ Closing observed
08-24 17:33	20m	- / -	EA2DR	-6 / -	2	Partial capture
08-24 17:10	20m	- / -	EA7P	0 / -	2	Partial capture
08-23 22:55	40m	-20 / -9	DF2RG	-18 / -18	4	✓ Full exchange observed
08-23 22:52	40m	-19 / -	HI3RRR	- / -16	2	✓ Closing fragment
08-23 00:03	20m	- / -15	HC7AE	-18 / -	4	Partial capture
08-21 23:18	40m	- / -21	EA1AUO	-9 / -	3	✓ Closing fragment
08-21 23:13	40m	- / -14	UT2PC	-14 / -	2	✓ Closing fragment
08-21 22:34	40m	- / -	DJ6GI	-3 / -	3	Partial capture
08-21 22:31	40m	- / -9	YT2YZ	+2 / -	4	✓ Closing fragment
08-21 22:29	40m	- / -	EW8AAC	-14 / -	2	✓ Closing fragment
08-20 20:59	40m	- / -15	R3VA	-8 / -	3	✓ Closing fragment
08-12 18:52	80m	- / -	LA9GX	+4 / -	5	Partial capture
08-11 17:37	20m	- / -	PD1ADA	-17 / -	3	Partial capture
08-11 17:35	20m	- / -18	R2BQM	-6 / -	5	Partial capture

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
132415  -7  759  YB3BBF F1JPG JN06 (x3)
094230  -4 2435  YB3BBF CN8WK -10 (x2)
133530 -21 2154  YB3BBF CN8NS RR73
134230 -16 1083  YB3BBF 7Z1DZ RR73
135100  +7  972  YB3BBF CR7BRV -13 (x2)
120930  -6 1534  YB3BBF CT7AUT IM67 (x3)
140200 -14  744  YB3BBF 6W/IK2HKT -20

40m

UTC    dB Audio  Message
194230 +18 2532  YB3BBF 9A3MRN -13 (x2)
220530 -10 1919  YB3BBF CT9/DF7EE -13
222100 -11 1037  YB3BBF EA5JLB -16
222130 -22 1544  YB3BBF EA8AID 73
222130  -8  992  YB3BBF EA5JLB -16 (x10)

80m

UTC    dB Audio  Message
185230  -1  744  YB3BBF LA9GX JO59 (x5)
191030 +13  426  YB3BBF DJ7M JN49 (x3)

20m

UTC    dB Audio  Message
000400 -22 1432  YB3BBF HC7AE -15 (x3)
170415 -16 1123  IR7MGGC YB3BBF OI72
170800  -1 1360  YB3BBF EA7P IM76
170945 -17 1110  <...> YB3BBF OI72
171030  +0 1360  YB3BBF EA7P IM76 (x3)
173345  -7 2591  YB3BBF EA2DR IN83 (x2)
230000  -9 1018  YB3BBF IR7MGGC -17 (x4)

60m

UTC    dB Audio  Message
175030 -21 1576  YB3BBF <...> -09

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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