OZ1LDO — 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: JO45

Receiver-side FT8 activity involving OZ1LDO, decoded by SO8OO in southeastern Poland. 1,309 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, 10m, across 80 UTC dates in the available aggregate history. Observed between 2026-06-14 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 1,309 FT8 messages attributed to OZ1LDO as the transmitting token by decoded message structure across 80 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (53%), followed by 20 m (41%) and 10 m (5%). Most decodes (58%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

1,309

Messages attributed

UTC dates decoded

326

Active 15-min windows

-11 dB

Estimated median S/N

Bands

60m · 16 40m · 690 20m · 534 10m · 69

First attributed message: 2026-06-14
Last attributed message: 2026-10-23 20:30 UTC

Observed FT8 message patterns

Attributed sample: 1,309 messages
Active dates: 80 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -19 to -2.7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 306, moderate (-15 to -9 dB) 572, strong (≥ -8 dB) 431.

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 OZ1LDO in decoded directed-looking exchanges:

EC3A · Spain ×2 RK4FF · European Russia ×2 EA1CUB · Spain ×2 IN3EZU · Italy ×2 UY0HY · Ukraine ×2 A71XX · Qatar CT1ISH · Portugal D2ACE · Angola DJ1TU · Fed. Rep. of Germany DL8TV · Fed. Rep. of Germany DL9UXF · Fed. Rep. of Germany EB3BKW · Spain

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 OZ1LDO

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: JO45 · 726 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,058 km (approx.)
Last such locator decoded: 2026-10-23 20:04 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	OZ1LDO S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-23 20:14	40m	-16 / -	IK2WRI	- / -18	2	✓ Closing fragment
10-22 18:51	40m	-5 / -	IU2SMB	0 / -	2	✓ Closing observed
10-22 18:38	40m	- / -12	EA5RO	-3 / -	2	✓ Closing fragment
10-22 04:27	40m	- / +7	TO4A	+6 / -	2	✓ Closing fragment
10-21 20:29	40m	- / -	IU5LAD	-12 / -	2	✓ Closing fragment
10-21 20:25	40m	- / -7	EA5IGV	-14 / -	2	✓ Closing fragment
10-21 19:15	40m	-8 / -	EA3HLM	- / -	2	Partial capture
10-21 19:00	40m	-5 / -	BD8ENX	- / -17	5	✓ Closing fragment
10-21 18:46	40m	- / +7	IZ2WYA	-1 / -	2	✓ Closing fragment
10-20 22:11	40m	-21 / -	VO1FE	- / -19	2	Partial capture
10-20 04:22	40m	-8 / -	N7CAR	- / -19	3	✓ Closing fragment
10-20 04:20	40m	-3 / -	FM/VE3DZ	- / -3	3	Partial capture
10-20 04:19	40m	-4 / -	N7CAR	- / -	2	Partial capture
10-18 20:04	40m	-18 / -	IZ3KLB	- / -	2	Partial capture
10-18 04:49	40m	- / -9	UY0HY	-8 / -	2	✓ Closing fragment
10-18 04:43	40m	- / -18	UY0HY	-3 / -	2	✓ Closing fragment
10-18 04:29	40m	-12 / -	EA7AH	- / -	2	✓ Closing fragment
10-18 03:53	40m	-10 / -3	IU5RPJ	+4 / +1	4	✓ Full exchange observed
10-18 03:51	40m	- / -13	HA1BF	-5 / -	2	✓ Closing fragment
10-18 03:37	40m	-18 / -	9A5CW	- / -	2	Partial capture
10-18 02:45	40m	- / -6	UT5ECZ	+2 / -	2	Partial capture
10-18 02:18	40m	- / -13	MI0NWA	-8 / -	2	✓ Closing fragment
10-18 01:57	40m	- / -	A61DD	-12 / -	2	Partial capture
10-18 01:47	40m	- / -5	CT7AUT	-16 / -	2	✓ Closing fragment
10-18 01:25	40m	- / -17	HI8ML	+3 / -	2	Partial capture
10-18 01:12	40m	- / -15	N3TTT	+5 / -	2	✓ Closing fragment
10-18 00:11	40m	- / -3	US1CR	+8 / -	2	✓ Closing fragment
10-18 00:04	40m	- / -16	TA2EE	-10 / -	3	Partial capture
10-17 23:59	40m	- / -9	EC5M	+6 / -	2	✓ Closing fragment
10-17 23:32	40m	- / -	WA1HXH	-21 / -	2	Partial capture
10-17 23:27	40m	- / -6	EA1FYL	-4 / -	2	✓ Closing fragment
10-17 23:05	40m	- / -22	DF3GY	-15 / -	2	Partial capture
10-17 21:50	40m	- / -4	EA1CUB	-10 / -	2	✓ Closing fragment
10-17 21:35	40m	- / -18	F1MGE	0 / -	2	✓ Closing fragment
10-17 21:31	40m	- / -11	IU3VXN	-9 / -	2	✓ Closing fragment
10-17 19:02	40m	-10 / -	M7FSE	- / -	4	Partial capture
10-17 18:58	40m	-2 / -	M7COV	- / -8	3	✓ Closing fragment
10-17 18:54	40m	+1 / -	M7FSE	- / -	4	Partial capture
10-17 18:50	40m	-5 / -	M7JHI	- / -	2	Partial capture
10-17 15:58	40m	-8 / -5	IN3EZU	-2 / -13	7	✓ Full exchange observed
10-17 15:50	40m	-14 / +6	PA1EDL/J	-7 / -	2	Partial capture
10-17 15:42	40m	-4 / -1	OZ9FF	-8 / -	3	✓ Closing observed
10-17 15:38	40m	-11 / -	R2EA/P	- / -	3	Partial capture
10-17 15:34	40m	- / +1	DL6SDZ	-9 / -	2	✓ Closing fragment
10-17 15:28	40m	- / -12	RU3DNN	-9 / -	4	✓ Closing fragment
10-17 15:17	40m	-14 / -	HA1BF	- / -	3	Partial capture
10-14 14:07	40m	-14 / -	PA2MRK	- / -	3	Partial capture
10-12 21:09	40m	- / -16	EC2ASL	-10 / -	4	✓ Closing fragment
10-11 19:07	40m	-10 / -	JW6VM	- / -18	3	Partial capture
10-11 18:56	40m	-6 / -	EY7BM	- / -	9	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
202530 -10 1409  OZ1LDO EA5IGV RR73
202900 -12 1113  OZ1LDO IU5LAD +11 (x2)
042700  +4  388  OZ1LDO TO4A +07 (x2)
183800  -3  447  OZ1LDO EA5RO -12 (x2)
184745  -8 1286  HA3HA OZ1LDO JO45
185130  -5  617  IU2SMB OZ1LDO JO45
185245  +0  888  OZ1LDO IU2SMB RR73
191015 -14  722  OZ1LDO LZ2INP -09
200445  -8 2819  RW6AU OZ1LDO JO45
201415 -13  689  IK2WRI OZ1LDO R-18 (x2)
203015 -22 2133  ON9DC OZ1LDO 73

20m

UTC    dB Audio  Message
155800 -11 2582  OZ1LDO IR7MGGC +00
172000 -17 1962  OZ1LDO M9NTS IO81 (x2)
172130 +12 1975  OZ1LDO RK4FF -01 (x2)
172215 -12 1987  RK4FF OZ1LDO 73
172300  -5  603  OZ1LDO IV3KZF JN66
172315 -11 1961  VO1IV OZ1LDO R-15
184945  -5 2225  OZ1LDO EC3A -15 (x2)
141045  -3 2710  CQ OZ1LDO JO45
141115  +3 2710  OE6TNO OZ1LDO -12
141130  +1  520  OZ1LDO F4NKF JN13 (x3)

60m

UTC    dB Audio  Message
192045  -5 1331  LB6MJ OZ1LDO JO45 (x2)
192245  -6 1466  F/PE1DST OZ1LDO JO45

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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