OZ4DCJ — 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: Denmark Most frequent locator attributed to this token: JO57

Receiver-side FT8 activity involving OZ4DCJ, decoded by SO8OO in southeastern Poland. 117 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 19 UTC dates in the available aggregate history. Observed between 2026-06-20 and 2026-10-23.

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 117 FT8 messages attributed to OZ4DCJ as the transmitting token by decoded message structure across 19 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (52%), followed by 60 m (27%) and 20 m (19%). Several six-hour UTC windows tied for the largest share (82%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

117

Messages attributed

UTC dates decoded

Active 15-min windows

-13 dB

Estimated median S/N

Bands

80m · 61 60m · 32 40m · 2 20m · 22

First attributed message: 2026-06-20
Last attributed message: 2026-10-23 21:33 UTC

Observed FT8 message patterns

Attributed sample: 117 messages
Active dates: 19 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -21 to -3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 46, moderate (-15 to -9 dB) 40, strong (≥ -8 dB) 31.

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 OZ4DCJ in decoded directed-looking exchanges:

LY8O · Lithuania 9K2GR · Kuwait EB1DJ · Spain GB4NFN · England RA3Y · European Russia TN8GD · Republic of the Congo M0IEP · England OE2EJN · Austria BD8ENU · China DD6ZV · Fed. Rep. of Germany DF4WQ · Fed. Rep. of Germany DG6YMK · Fed. Rep. of Germany

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 OZ4DCJ

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: JO57 · 78 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,098 km (approx.)
Last such locator decoded: 2026-10-23 21:33 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	OZ4DCJ S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-23 21:32	80m	-6 / -	W1MK	- / -	2	Partial capture
10-21 20:11	60m	- / -	Z33ST	-12 / -	2	Partial capture
10-21 20:09	60m	-21 / -	DL9UP	- / -	3	Partial capture
10-21 20:05	60m	-21 / -12	IU3FVJ	-4 / -	6	✓ Closing observed
10-20 21:15	60m	- / +1	G4DBW	+8 / -	5	✓ Closing fragment
10-20 21:14	60m	- / -8	DL7ACA	+8 / -	4	✓ Closing fragment
10-20 21:13	60m	- / -6	ON1BH	-13 / -	3	✓ Closing fragment
10-20 21:11	60m	- / 0	DF4WQ	-13 / -	5	✓ Closing fragment
10-20 21:10	60m	- / -	9A4ZM	+12 / -	4	Partial capture
10-20 21:10	60m	- / -	G4DBW	+6 / -	4	Partial capture
10-20 21:10	60m	- / -11	ON1BH	-6 / -	2	Partial capture
10-20 21:07	60m	-10 / -14	DK8PR	+9 / +7	6	Partial capture
10-20 21:04	60m	- / 0	OT4R	-7 / -	3	✓ Closing fragment
10-20 21:04	60m	- / -7	DL6ZXG	+12 / -	2	✓ Closing fragment
10-19 20:22	60m	- / -16	LA7HJA	-11 / -	2	✓ Closing fragment
10-18 21:02	80m	-12 / -	SQ4GXA	- / -	2	Partial capture
10-18 20:57	80m	- / -7	SM7TZK	+6 / -	3	✓ Closing fragment
10-18 19:55	80m	-6 / -	VR2ZXP	- / -	3	Partial capture
10-17 21:28	60m	-9 / -	DH1HF	- / +4	3	Partial capture
10-17 21:25	60m	-8 / -10	G0ABI	+1 / -	4	✓ Closing observed
10-16 21:27	160m	- / -21	LY8O	-2 / -	2	✓ Closing fragment
10-16 21:13	80m	-4 / -18	IZ8XXE	-4 / -	11	Partial capture
10-16 21:05	80m	-16 / -	JE6WOQ	- / -	8	Partial capture
10-16 21:01	80m	+10 / -	R2FCA	- / -	2	Partial capture
10-16 20:55	80m	- / -18	R6AR	-9 / -	2	✓ Closing fragment
10-16 20:49	80m	-7 / -	OH2BVT	- / -	4	Partial capture
10-16 20:46	80m	+4 / -18	DO6NIK	+14 / 0	3	✓ Full exchange observed
10-16 20:43	80m	-2 / -	R2AL	+12 / -	3	Partial capture
10-16 20:41	80m	-2 / -	M8LOD	- / -10	4	✓ Closing fragment
10-16 20:33	60m	-13 / -20	PA9HR	-14 / -	5	Partial capture
10-16 19:33	40m	-14 / -	M0IEP	-9 / +9	2	✓ Closing observed
10-12 21:18	80m	-18 / -	ON4CJU	- / +5	2	✓ Closing fragment
10-12 20:48	60m	- / -6	BD8ENU	-20 / -	2	✓ Closing fragment
10-09 20:50	60m	-22 / -	LZ1QZ	- / -	2	Partial capture
10-09 20:39	60m	- / -20	OK2AA	-5 / -	2	✓ Closing fragment
10-09 20:36	60m	- / -	IU2VUZ	-22 / -	2	Partial capture
10-08 20:42	80m	-14 / -16	RN2F	-4 / -1	5	✓ Full exchange observed
10-08 20:39	80m	- / -12	DO9SAM	+13 / -	4	✓ Closing fragment
10-08 20:38	80m	- / -13	RA5AD	-6 / -	2	✓ Closing fragment
10-08 20:33	60m	-20 / -	LA1HW	- / -	4	Partial capture
10-08 20:31	60m	- / -14	OK1TRJ	-14 / -	2	✓ Closing fragment
10-08 20:26	60m	-19 / -	ON7PM	- / +4	3	✓ Closing fragment
10-07 20:49	60m	- / -10	DG6YMK	+7 / -	4	✓ Closing fragment
10-07 20:31	60m	- / -	F5PBG	-16 / -	2	Partial capture
10-07 20:00	60m	- / -	EA1IOK	-1 / -	5	Partial capture
10-07 19:59	60m	- / -9	GM3CQD	-12 / -	2	✓ Closing fragment
10-07 19:56	60m	- / -7	OH5YZ	-21 / -	3	Partial capture
10-07 19:53	60m	-21 / -	HA5WA	- / +4	2	Partial capture
10-06 21:52	80m	- / -	F5RAV	-8 / -	3	✓ Closing fragment
10-06 21:51	80m	-23 / -19	DO9BAU	+6 / -	6	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
211745  -6 2522  IZ8XXE OZ4DCJ JO57
195530  -6  418  VR2ZXP OZ4DCJ JO57 (x3)
200330 -16 2050  M3ZZF OZ4DCJ JO57
200515 -17 2434  OZ4DCJ RA1QX -07
200700 -16  349  IU1HGN OZ4DCJ JO57
205700  +5 2552  OZ4DCJ SM7TZK -07 (x3)
205915 -13 1028  SB7W OZ4DCJ JO57
210215 -11 1997  SQ4GXA OZ4DCJ JO57 (x2)
213245  +0  857  W1MK OZ4DCJ JO57 (x2)

60m

UTC    dB Audio  Message
211630  +7  667  OZ4DCJ G4DBW JO01 (x3)
200500 -21 1354  IU3FVJ OZ4DCJ JO57 (x3)
200615  -5 1353  OZ4DCJ IU3FVJ -12 (x2)
200700 -21 1353  IU3FVJ OZ4DCJ 73
200900 -19 1299  DL9UP OZ4DCJ JO57 (x3)
201115 -10 2674  OZ4DCJ Z33ST KN01 (x2)
212630  -9  982  OZ4DCJ F4GIH JN08

160m

UTC    dB Audio  Message
212700  -1 1272  OZ4DCJ LY8O R-21 (x2)

40m

UTC    dB Audio  Message
193615  -6 2547  VU3OSA OZ4DCJ JO57
135000  -9 1270  OZ4DCJ 9A5AZK -12
191145 -13 2230  OZ4DCJ OE2EJN -17 (x2)
193315 -14 1240  M0IEP OZ4DCJ +09
193400  -9 2134  OZ4DCJ M0IEP 73

20m

UTC    dB Audio  Message
151130 -13 2446  BH2WTV OZ4DCJ JO57 (x4)
201115  +8  990  OZ4DCJ EB1DJ +04 (x2)
202630  +1 2131  OZ4DCJ 9K2GR RR73
130145 -16  925  VE3PFW OZ4DCJ JO57
142300 -19 1026  GM3AND OZ4DCJ JO57
144400 -10 2825  VE5RR OZ4DCJ JO57 (x2)
131945 -19 2360  KE8UOH OZ4DCJ JO57 (x3)
185430 -21 1257  RA3Y OZ4DCJ 73

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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