OK2JBI — 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: Czech Republic Most frequent locator attributed to this token: JN89

Receiver-side FT8 activity involving OK2JBI, decoded by SO8OO in southeastern Poland. 94 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 3 UTC dates in the available aggregate history. Observed between 2026-08-10 and 2026-08-12.

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 94 FT8 messages attributed to OK2JBI as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (77%), followed by 80 m (23%). Several six-hour UTC windows tied for the largest share (55%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (91%); the estimated median was -2 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-2 dB

Estimated median S/N

Bands

80m · 22 40m · 72

First attributed message: 2026-08-10
Last attributed message: 2026-08-12 01:41 UTC

Observed FT8 message patterns

Attributed sample: 94 messages
Active dates: 3 UTC dates
Estimated median S/N: -2 dB
Estimated 10th-90th percentile: -7 to +8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 6, strong (≥ -8 dB) 86.

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 OK2JBI in decoded directed-looking exchanges:

CR7BRV · Portugal CR7CAU · Portugal F1PBZ · France UR4UVT · Ukraine 9A3AUH · Croatia DG1RMY · Fed. Rep. of Germany DG5PW · Fed. Rep. of Germany DL1IP · Fed. Rep. of Germany DL4RY · Fed. Rep. of Germany DL9KM · Fed. Rep. of Germany F6FHZ · France PA3ADE · Netherlands

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 OK2JBI

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: JN89 · 45 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 348 km (approx.)
Last such locator decoded: 2026-08-12 01:41 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	OK2JBI S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-03 10:19	10m	- / -20	CR7CAU	+1 / -	3	✓ Closing fragment
10-16 15:11	10m	- / -11	CR7BRV	+2 / -	2	✓ Closing fragment
08-12 01:39	40m	- / -3	9A3AUH	-10 / -	2	✓ Closing fragment
08-12 01:32	40m	-2 / -	Z62NS	- / -	4	Partial capture
08-12 01:25	40m	-1 / -	NW9F	- / -	7	Partial capture
08-12 01:00	40m	-6 / -	OA4ENG	- / -	2	Partial capture
08-12 00:58	40m	+2 / -	PV8AJ	- / -	2	Partial capture
08-12 00:57	40m	+4 / -	SP0DF	- / +3	2	✓ Closing fragment
08-12 00:55	40m	+2 / +2	UX7QV	-13 / +10	5	✓ Full exchange observed
08-12 00:51	40m	-1 / +1	DL9KM	-16 / -	5	✓ Full exchange observed
08-11 23:38	20m	- / -16	UR4UVT	-12 / -	2	✓ Closing fragment
08-11 23:36	20m	- / -11	F1PBZ	-2 / -	2	✓ Closing fragment
08-11 23:23	80m	+8 / -1	PA3FR	+8 / +9	5	✓ Full exchange observed
08-11 23:21	80m	+10 / +1	IQ4JO	+8 / +4	5	✓ Full exchange observed
08-11 23:19	80m	+7 / -	DO5PY	-5 / -3	2	Partial capture
08-11 23:19	80m	+8 / -	OD5XX	-14 / -14	6	Partial capture
08-11 23:18	80m	+11 / -9	IU5HIU	-20 / -12	5	✓ Full exchange observed
08-11 23:15	80m	+6 / +2	DK1MCS	+4 / +9	6	✓ Full exchange observed
08-11 23:15	80m	+8 / -7	G8OO	+1 / +1	5	✓ Full exchange observed
08-11 23:14	80m	+2 / 0	TF4M	-6 / 0	3	Partial capture
08-11 16:36	40m	-4 / -	PA3ADE	- / -15	2	✓ Closing fragment
08-11 16:34	40m	-2 / -	DG1RMY	- / -6	2	✓ Closing fragment
08-11 16:33	40m	-4 / -	YO3IWZ/P	- / -25	2	✓ Closing fragment
08-11 16:31	40m	-3 / -	DL4RY	- / -5	2	✓ Closing fragment
08-11 16:30	40m	-10 / -	YO3GNF	-21 / -	2	✓ Closing observed
08-11 16:29	40m	-11 / -	SH5RJX	- / -10	2	✓ Closing fragment
08-10 17:51	40m	-4 / -	SV9QWC	- / -13	3	✓ Closing fragment
08-10 17:48	40m	-4 / -	RW6HPI	- / -6	5	✓ Closing fragment
08-10 17:47	40m	-2 / -	F6FHZ	- / -17	2	✓ Closing fragment
08-10 17:46	40m	-3 / -	RL2F	- / -4	3	✓ Closing fragment
08-10 17:42	40m	-3 / -	DG5PW	- / -9	2	✓ Closing fragment
08-10 17:42	40m	-2 / +1	DL1IP	-7 / +7	5	✓ Full exchange observed
08-10 17:38	40m	-4 / -	F1IQH	- / -	2	Partial capture
08-10 17:36	40m	-3 / -11	RU3NCW	-4 / -10	7	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
151115  +1  716  OK2JBI CR7BRV R-11 (x2)
101545 -17 2100  OK2JBI CR7BYO IM58
101915  +2  343  OK2JBI CR7CAU IM59 (x3)

40m

UTC    dB Audio  Message
012600  -2 1188  NW9F OK2JBI JN89 (x6)
013045 -12 1188  OA4ENG OK2JBI JN89
013200  +0 1190  Z62NS OK2JBI JN89 (x4)
013915 -12 2531  OK2JBI 9A3AUH R-03 (x2)
014030 -24 1798  CQ OK2JBI JN89                        a1 (x2)

20m

UTC    dB Audio  Message
173100 -16 1636  OK2JBI YO4GIY -01
233615  -4 2774  OK2JBI F1PBZ -11 (x2)
233815 -11 2627  OK2JBI UR4UVT R-16 (x2)

80m

UTC    dB Audio  Message
232130  -9 2240  OK2JBI OD5XX KM73
232130  +9 2393  OK2JBI IQ4JO R+01
232145  +9 2240  IQ4JO OK2JBI RR73
232200 +13 2393  OK2JBI IQ4JO 73
232215  +9 2240  OD5XX OK2JBI -14 (x2)
232315  +6 2240  CQ OK2JBI JN89
232330  +8 1189  OK2JBI PA3FR JO33
232345  +7 2240  PA3FR OK2JBI +09
232400  +7 1188  OK2JBI PA3FR R-01
232415  +8 2240  PA3FR OK2JBI RR73
232430  +8 1188  OK2JBI PA3FR 73
232445  +9 2240  MM0DXL OK2JBI -25
232545  +7 2240  CQ OK2JBI JN89 (x2)

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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