OH2JJA — 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: Finland Most frequent locator attributed to this token: KP20

Receiver-side FT8 activity involving OH2JJA, decoded by SO8OO in southeastern Poland. 67 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 10 UTC dates in the available aggregate history. Observed between 2026-08-13 and 2026-11-01.

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 67 FT8 messages attributed to OH2JJA as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (51%), followed by 80 m (36%) and 40 m (13%). Several six-hour UTC windows tied for the largest share (51%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (72%); the estimated median was -2 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-2 dB

Estimated median S/N

Bands

80m · 24 40m · 9 20m · 34

First attributed message: 2026-08-13
Last attributed message: 2026-11-01 19:35 UTC

Observed FT8 message patterns

Attributed sample: 67 messages
Active dates: 10 UTC dates
Estimated median S/N: -2 dB
Estimated 10th-90th percentile: -14 to +10 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 15, strong (≥ -8 dB) 48.

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 OH2JJA in decoded directed-looking exchanges:

DN9OPA · Fed. Rep. of Germany 2I0WMN · Northern Ireland BG7BMG · China BG7BVI · China F5PBG · France F5RRS · France JG1IPZ · Japan KD2AGW · United States LY7T · Lithuania M7HET · England PE1NPS · Netherlands PE9JAN · 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 OH2JJA

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: KP20 · 42 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,192 km (approx.)
Last such locator decoded: 2026-11-01 19:35 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	OH2JJA S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-01 19:35	80m	-8 / -	EY7BP	- / -16	2	Partial capture
11-01 19:05	80m	-8 / -	E70SZ	- / -7	2	Partial capture
10-31 21:48	80m	- / -	9A4ZM	+8 / -	2	Partial capture
10-31 21:48	80m	-10 / -	DF8RU	+2 / 0	4	✓ Closing observed
10-31 21:42	80m	- / -6	SP9MOC	-1 / -	3	✓ Closing fragment
10-31 21:41	80m	- / -	SP1EG	-4 / -	2	Partial capture
10-31 21:40	80m	- / -	SP5JMA	-2 / -	2	Partial capture
10-31 21:40	80m	- / -12	EA1IOK	-8 / -	3	✓ Closing fragment
10-31 21:39	80m	- / -7	YO4NF	0 / -	3	✓ Closing fragment
10-28 21:33	80m	-9 / -8	OH1TSM	+9 / -	6	✓ Full exchange observed
08-30 19:26	80m	+12 / -	UW5ESX	- / -12	2	Partial capture
08-30 19:25	80m	+10 / -	GM2OT	- / -11	2	Partial capture
08-30 19:22	80m	+10 / -	LZ2VQ	+16 / -5	3	Partial capture
08-30 19:22	80m	+10 / -	ES6DO	-6 / +7	3	Partial capture
08-30 19:21	80m	- / -6	GM2OT	-12 / -	2	Partial capture
08-30 19:20	80m	+10 / -	IZ8QNS	- / -18	3	✓ Closing fragment
08-30 18:45	80m	- / -	UA4FKT	+12 / -	3	Partial capture
08-30 18:44	80m	- / -	DO9BAU	+1 / -	2	✓ Closing fragment
08-30 18:42	80m	+9 / -17	F4GTB	+2 / -2	6	✓ Full exchange observed
08-30 18:19	20m	- / -3	PD0PWH	-2 / -	5	Partial capture
08-27 21:45	20m	- / -1	M7HET	+4 / -	4	✓ Closing fragment
08-27 21:32	20m	- / -19	LU3DLY	-13 / -	3	Partial capture
08-27 21:27	20m	- / -15	JG1IPZ	-18 / -	3	✓ Closing fragment
08-27 11:41	20m	- / -9	PE1NPS	+1 / -	4	✓ Closing fragment
08-27 11:39	20m	0 / -	AD9GE	- / -15	3	Partial capture
08-27 11:16	20m	-1 / -	<...>	- / -	3	Partial capture
08-27 11:13	20m	- / -9	F5PBG	-2 / -	4	✓ Closing fragment
08-27 11:13	20m	-4 / -11	F5RRS	-2 / +2	6	✓ Full exchange observed
08-27 11:11	20m	-2 / -	KD2AGW	- / -6	3	✓ Closing fragment
08-27 09:20	20m	+1 / -	K4OVY	- / -	5	Partial capture
08-27 08:27	20m	+5 / -	TG9AUO	- / -	3	Partial capture
08-27 08:25	20m	+2 / -	KT4DZ	- / -	2	Partial capture
08-23 19:16	20m	- / -7	BG7BMG	-14 / -	2	✓ Closing fragment
08-20 21:22	40m	-16 / -	OJ0JR	- / -	2	Partial capture
08-17 19:59	40m	- / -	DK7ZT	-16 / -	3	✓ Closing fragment
08-16 05:46	20m	- / -	RL6MT	-14 / -	2	Partial capture
08-13 21:40	40m	-12 / -	Z62NS	- / -	2	Partial capture
08-13 21:37	40m	- / -16	EA3EDU	-15 / -	3	✓ Closing fragment
08-13 20:05	20m	- / -9	2I0WMN	-18 / -	3	✓ Closing fragment
08-13 07:37	10m	- / -25	DN9OPA	-7 / -	2	✓ Closing fragment
08-12 19:54	20m	- / -6	LY7T	-8 / -	2	✓ Closing fragment
08-11 06:08	20m	- / -11	V31MA	-8 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
214230  +1 1071  OH2JJA SP9MOC -06 (x2)
214330 -18 2369  OH2JJA R6FX LN14
214830  -2 2052  OH2JJA RX3ASQ KO95
214830  +1 1502  OH2JJA DF8RU JN68
214830 +14 2364  OH2JJA 9A4ZM JN86
214900  +4 1502  OH2JJA DF8RU JN68
214900  +2 2364  OH2JJA 9A4ZM JN86
214915  -7 2369  DF8RU OH2JJA +00 (x2)
185915  -8  871  AP2AM OH2JJA KP20
190530  -4 1094  E70SZ OH2JJA KP20 (x2)
193515  -9  877  EY7BP OH2JJA KP20 (x2)

10m

UTC    dB Audio  Message
073745 -10 2395  OH2JJA DN9OPA R-25 (x2)
074700 -10 1030  OH2JJA EN35UKR -13
102345  +1  496  OH2JJA <...> -04

20m

UTC    dB Audio  Message
213315 -11 2227  OH2JJA LU3DLY RRR
213345 -11 2690  OH2JJA KF8WX R+13
214545  +6 2901  OH2JJA M7HET IO91 (x4)
160615  -1 2215  OH2JJA IQ4JO JN63
161045  -4 1697  OH2JJA PE9JAN 73
181930  +4  866  OH2JJA PD0PWH JO21 (x5)
073830  -3 2845  EG1PPE OH2JJA KP20
075915 -13 1514  IU4SQE OH2JJA KP20

40m

UTC    dB Audio  Message
213315  -9 2540  VJ6X OH2JJA KP20
213745 -14  907  OH2JJA EA3EDU JN01 (x3)
214000 -10 2539  Z62NS OH2JJA KP20 (x2)
195915 -14 1905  OH2JJA DK7ZT +12 (x3)
211615 -17 2349  <...> OH2JJA KP20
212215 -16 2282  OJ0JR OH2JJA KP20 (x4)
213945 -10 2671  5A1AL OH2JJA KP20

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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