OH3JP — 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 OH3JP, decoded by SO8OO in southeastern Poland. 898 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 51 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-11-06.

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 898 FT8 messages attributed to OH3JP as the transmitting token by decoded message structure across 51 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (42%), followed by 40 m (27%) and 160 m (22%). Most decodes (98%) fell within the six-hour window 19:00-01:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (86%); the estimated median was 0 dB.

Overview

898

Messages attributed

UTC dates decoded

131

Active 15-min windows

0 dB

Estimated median S/N

Bands

160m · 195 80m · 375 60m · 19 40m · 238 20m · 6 10m · 65

First attributed message: 2026-06-06
Last attributed message: 2026-11-06 21:37 UTC

Observed FT8 message patterns

Attributed sample: 898 messages
Active dates: 51 UTC dates
Estimated median S/N: 0 dB
Estimated 10th-90th percentile: -10 to +11 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 26, moderate (-15 to -9 dB) 104, strong (≥ -8 dB) 768.

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 OH3JP in decoded directed-looking exchanges:

IT9VCE · Sicily ×3 CR5VP · Portugal ×2 4J3DJ · Azerbaijan DO3VE · Fed. Rep. of Germany EA8BS · Canary Islands RT6Z · European Russia SV1HFE · Greece UA4CKN · European Russia UK8AEA · Uzbekistan RA9J · Asiatic Russia KB1EFS · United States RK2Z · European Russia

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 OH3JP

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 · 599 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,192 km (approx.)
Last such locator decoded: 2026-10-31 20:49 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	OH3JP S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-06 21:36	80m	-2 / -	UK8OM	- / -17	2	✓ Closing fragment
10-30 22:04	160m	-15 / -17	IT9VCE	+2 / -	3	✓ Closing observed
10-30 22:02	160m	-1 / -	SV1HFE	-5 / -	4	✓ Closing observed
10-30 21:34	160m	-1 / -	5Z4AB	- / -	52	Partial capture
10-30 21:27	60m	+1 / -	C5R	- / -15	5	Partial capture
10-30 21:27	60m	- / -	F5RRS	+2 / -	4	Partial capture
10-30 21:22	60m	+3 / -	S9R	- / -10	7	✓ Closing fragment
10-30 21:21	60m	-1 / -	C5R	- / -	3	Partial capture
10-30 21:06	80m	+9 / -	BX4AP	- / -	3	Partial capture
10-30 20:56	80m	+3 / -	A92AE	- / -	18	Partial capture
10-30 20:53	80m	-2 / -	RM9WN	- / -10	3	✓ Closing fragment
10-23 21:26	160m	+14 / -	IT9NOV	- / -	5	Partial capture
10-17 20:50	160m	- / -	UA4FKT	-9 / -	3	Partial capture
10-17 20:49	160m	-6 / -9	RT6Z	-10 / -1	5	✓ Full exchange observed
10-17 20:48	160m	-9 / -	UA4CKN	- / -8	2	✓ Closing fragment
10-17 20:42	160m	-2 / +5	4J3DJ	-1 / -3	12	✓ Full exchange observed
10-16 21:05	160m	+13 / -	4J3DJ	- / -	22	Partial capture
10-16 21:04	160m	+6 / -	UK8AEA	- / -13	2	✓ Closing fragment
10-16 21:02	160m	+9 / -	EA8BS	- / -13	4	✓ Closing fragment
10-16 21:01	160m	+6 / -	UK8AEA	- / -	2	Partial capture
10-16 20:18	160m	-5 / -	OD5ZF	- / -	11	Partial capture
10-16 20:15	160m	-3 / -	DO3VE	-8 / -16	3	✓ Closing observed
10-16 20:10	160m	-5 / -	4J3DJ	- / -	13	Partial capture
10-16 20:08	160m	-4 / -	5Z4AB	- / -	3	Partial capture
10-16 20:06	160m	0 / -	OD5ZF	- / -	4	Partial capture
10-16 20:02	160m	+2 / -	5Z4AB	- / -	8	Partial capture
10-16 19:58	160m	-2 / -	4J3DJ	- / -	7	Partial capture
10-16 19:56	160m	-6 / -	OD5ZF	- / -	4	Partial capture
09-18 21:48	160m	-18 / -	RI1FJZ	- / -	2	Partial capture
09-13 20:16	40m	-10 / -	DS4AKP	- / -19	3	Partial capture
09-13 20:09	40m	-16 / -	BA4IAW	- / -	3	Partial capture
09-13 16:25	40m	-3 / -	OH7ML	- / -	3	Partial capture
09-12 22:53	40m	-3 / -	KB1EFS	- / -21	5	✓ Closing fragment
09-12 22:51	40m	-2 / -	F1IQH	- / -	2	Partial capture
09-12 20:29	80m	+12 / -2	IT9VCE	-9 / -8	5	✓ Full exchange observed
09-06 20:40	80m	+6 / -	BI8FRF	- / -	2	Partial capture
09-03 20:00	160m	-14 / -	RI1FJL	- / -	2	Partial capture
09-03 19:53	160m	-12 / -	RI1FJL	- / -24	6	Partial capture
09-03 19:48	160m	-16 / -	RI1FJL	- / -	3	Partial capture
08-29 22:17	80m	+3 / -	YE9BJM	- / -	8	Partial capture
08-29 22:11	80m	+4 / -	IW9FRA	- / -	6	Partial capture
08-26 19:47	80m	-10 / -	RI1FJL	- / -	10	Partial capture
08-22 23:07	80m	-6 / -	<...>	- / -10	2	Partial capture
08-22 23:01	60m	-14 / -	<...>	- / -	2	Partial capture
08-22 22:56	40m	-13 / -3	IR7MGGC	-5 / -4	2	Partial capture
08-22 22:55	40m	-8 / -	<...>	- / -	2	Partial capture
08-22 11:03	20m	-13 / 0	II7MGBT	+6 / -	2	Partial capture
08-19 20:43	60m	-15 / -13	OJ0JR	0 / -	3	✓ Closing observed
08-16 00:12	80m	- / -12	WA3OFR	-14 / -	2	Partial capture
08-16 00:05	80m	+2 / -	K4MWB	- / -	7	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
210115  +5  371  A92AE OH3JP KP20 (x8)
210630  +8  387  BX4AP OH3JP KP20 (x3)
204915  -9 2530  A92AE OH3JP KP20
205145  -8 2532  R6FX OH3JP -14
213645  -2  358  UK8OM OH3JP R-17 (x2)

160m

UTC    dB Audio  Message
215930  +3 2681  5Z4AB OH3JP KP20 (x6)
220215  -5 2805  OH3JP SV1HFE KM18
220230  +3 2681  5Z4AB OH3JP KP20
220245  -4 2805  OH3JP SV1HFE KM18
220300  +0 2681  RA0AF OH3JP R-10
220315  -7 2805  OH3JP SV1HFE KM18
220400  -1 2681  SV1HFE OH3JP RR73
220445 -15 2681  IT9VCE OH3JP KP20
220600  +4  504  OH3JP IT9VCE -17 (x2)

60m

UTC    dB Audio  Message
212345  +2 2752  S9R OH3JP KP20 (x5)
212700  +6 2004  OH3JP F5RRS JN36
212700  -7 2752  OH3JP EB3JT JN01
212715  +5 2752  C5R OH3JP KP20
212730  +3 2004  OH3JP F5RRS JN36
212745  -2 2751  C5R OH3JP KP20
212800  -4 2004  OH3JP F5RRS JN36
212815  -7 2752  C5R OH3JP KP20
212830  +4 2004  OH3JP F5RRS JN36
212845  +4 2752  C5R OH3JP KP20 (x2)

40m

UTC    dB Audio  Message
225415  +2 2840  KB1EFS OH3JP KP20 (x3)
234415 -20 2141  OH3JP TI8MCC RR73
162530  -3 2931  OH7ML OH3JP KP20 (x4)
200915 -16  245  BA4IAW OH3JP KP20 (x3)
201615 -13  245  DS4AKP OH3JP -19 (x3)
201815 -13  245  LB8TG OH3JP KP20

20m

UTC    dB Audio  Message
155645  -8  829  OH3JP RA9J -15 (x2)
201545 -14 1672  OH3JP CR5VP +03 (x2)
203515 -21 1578  OH3JP 7Z1DH -05
110330 -13 2792  II7MGBT OH3JP KP20
110345  +6 2792  OH3JP II7MGBT +00

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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