OZ1LDO — FT8 activity observed at SO8OO

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. 1,182 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, 10m, across 66 UTC dates in the available aggregate history. Observed between 2026-06-14 and 2026-09-11.

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 1,182 FT8 messages attributed to OZ1LDO as the transmitting token by decoded message structure across 66 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (48%), followed by 20 m (45%) and 10 m (6%). Most decodes (56%) 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 -11.7 dB.

Overview

1,182

Messages attributed

UTC dates decoded

291

Active 15-min windows

-11.7 dB

Estimated median S/N

Bands

60m · 16 40m · 563 20m · 534 10m · 69

First attributed message: 2026-06-14
Last attributed message: 2026-09-11 04:14 UTC

Observed FT8 message patterns

Attributed sample: 1,182 messages
Active dates: 66 UTC dates
Estimated median S/N: -11.7 dB
Estimated 10th-90th percentile: -19 to -3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 289, moderate (-15 to -9 dB) 527, strong (≥ -8 dB) 366.

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:

9A4ZM · Croatia ×4 EC3A · Spain ×3 F1IQH · France ×3 4X1UF · Israel ×2 F1PBZ · France ×2 HA7TM · Hungary ×2 D2UY · Angola ×2 DL9KM · Fed. Rep. of Germany ×2 GJ0KYZ · Jersey ×2 IN3LHF · Italy ×2 R1AV · European Russia ×2 RK4FF · European Russia ×2

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 · 637 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,058 km (approx.)
Last such locator decoded: 2026-09-11 04:13 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
09-11 04:13	40m	-14 / -16	J38DX	0 / -17	5	✓ Full exchange observed
09-10 04:24	40m	-16 / -	YV6BXN	- / -	3	Partial capture
09-09 03:56	40m	- / -	R6LKG	0 / -	2	Partial capture
09-05 05:01	40m	0 / -	HI3K	- / -16	2	Partial capture
09-05 04:50	40m	-5 / -	AA4DD	- / -	5	Partial capture
09-05 04:42	40m	-2 / -	Z34K	- / -2	3	Partial capture
09-04 04:24	40m	+1 / -	D44TWO	- / -	3	Partial capture
09-04 04:19	40m	0 / -	XE2X	- / -	2	Partial capture
08-31 14:11	20m	- / -	F4NKF	+1 / -	3	Partial capture
08-30 18:49	20m	- / -15	EC3A	-5 / -	2	✓ Closing fragment
08-30 17:21	20m	-12 / -1	RK4FF	+14 / -	3	✓ Closing observed
08-30 17:20	20m	- / -7	M9NTS	-14 / -	2	Partial capture
08-30 15:56	20m	- / 0	IR7MGGC	-7 / -	3	Partial capture
08-30 06:03	40m	-10 / -	TI5GAX	- / -	2	Partial capture
08-29 22:17	40m	-3 / -	8Q7PR	- / -6	6	✓ Closing fragment
08-29 22:10	40m	-6 / -	8Q7PR	- / -10	5	Partial capture
08-29 22:09	40m	+1 / -	PY4PK	- / -	2	Partial capture
08-29 22:07	40m	+8 / -	Z33PB	- / -	3	Partial capture
08-29 21:55	40m	-4 / -22	EA3AAY	0 / -11	6	✓ Full exchange observed
08-29 21:55	40m	-7 / -	OK1WCF	-8 / -9	3	✓ Closing observed
08-29 21:54	40m	-5 / -	9J2FI	- / -15	3	✓ Closing fragment
08-29 20:13	40m	-8 / -	YE9BJM	- / -	2	Partial capture
08-29 20:06	40m	0 / -19	YE9BJM	-10 / -14	5	Partial capture
08-24 23:38	20m	+5 / -	VA3UG	- / -13	3	✓ Closing fragment
08-24 23:29	40m	0 / -	TN8GD	- / -17	5	Partial capture
08-24 23:27	40m	+5 / -	BH4GUU	- / -	2	Partial capture
08-22 17:09	20m	0 / -	BG2GWN	- / -	2	Partial capture
08-21 02:20	40m	-10 / -	WP4TUN	- / -	2	Partial capture
08-21 02:18	40m	-11 / -	AA4NP	- / -	2	Partial capture
08-21 02:09	40m	- / -12	EC3A	-8 / -	2	✓ Closing fragment
08-21 02:02	40m	- / +1	RK4FF	+6 / -	2	✓ Closing fragment
08-17 17:25	20m	-3 / -	8B81KB	- / -	2	Partial capture
08-16 22:40	40m	-10 / -	ZZ2DX	- / -	3	Partial capture
08-16 22:38	40m	-12 / -	N1SK	- / -	2	Partial capture
08-14 06:17	20m	- / -11	LZ2KV	+11 / -	5	✓ Closing fragment
08-12 19:52	20m	- / -14	IK4UNQ	-9 / -	2	Partial capture
08-12 19:50	20m	-16 / -	JA1PSS	- / -15	3	Partial capture
08-12 19:49	20m	-18 / -	UR5WCS	- / -9	2	✓ Closing fragment
08-12 19:48	20m	- / -14	IK4UNQ	-10 / -	2	Partial capture
08-12 19:46	20m	-12 / -	KF0MSJ	- / -	2	Partial capture
08-12 19:43	20m	-12 / -	HZ1YJ	- / -	3	Partial capture
08-12 19:38	20m	-19 / -	R2FDP	- / -	5	Partial capture
08-12 19:35	20m	-8 / -	<...>	- / -	2	Partial capture
08-12 19:28	20m	-6 / -	MD0CCE	- / -	2	Partial capture
08-12 18:59	20m	-3 / -	PA7TT	+2 / +4	5	✓ Closing observed
08-12 18:56	20m	-1 / -	IS0LYN	-8 / -12	3	✓ Closing observed
08-12 18:55	20m	-1 / -4	DJ1TU	-9 / -	10	✓ Closing observed
08-12 18:52	20m	-15 / -	VE1JS	- / -	2	Partial capture
08-12 18:46	20m	-9 / -	RW9WC	- / -	3	Partial capture
08-12 18:42	20m	-13 / -	VE1JS	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
050045  +4  853  IU7SQV OZ1LDO JO45
050130  +0  854  HI3K OZ1LDO JO45 (x2)
035630  +4  360  OZ1LDO R6LKG LN07 (x2)
041415 -20 2307  SN100PKP OZ1LDO R-18
042330 -21 1297  J38DX OZ1LDO JO45
042430 -16 1296  YV6BXN OZ1LDO JO45 (x3)
041315 -12 2568  J38DX OZ1LDO JO45
041330  -1 2939  OZ1LDO J38DX -16
041345 -15 2568  J38DX OZ1LDO R-17
041400  +2 2939  OZ1LDO J38DX RR73
041415 -15 2568  J38DX 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
201630 -11 1701  OZ1LDO PA4F R+07
201645 -12 1861  PA4F OZ1LDO RR73
201700 -13 1702  OZ1LDO PA4F 73
201700  -1 1857  OZ1LDO 9A4ZM JN86
201715 -17 1861  9A4ZM OZ1LDO -04
201730  -2 1857  OZ1LDO 9A4ZM R-04
201745 -16 1861  9A4ZM OZ1LDO RR73
201800  -4 1857  OZ1LDO 9A4ZM 73
174215  -4 1306  OZ1LDO DD6ZV JO62 (x2)
174300 -19 1306  DD6ZV OZ1LDO RR73
174315  -9 1306  OZ1LDO DD6ZV 73
192045  -5 1331  LB6MJ OZ1LDO JO45 (x2)
192245  -6 1466  F/PE1DST OZ1LDO JO45

10m

UTC    dB Audio  Message
162430 -10 1217  ER3CT OZ1LDO R-18
084930 -13 2338  RK0S OZ1LDO JO45 (x5)
085600 -10 2446  UX2SB OZ1LDO -03 (x3)
111200  -8 2309  OZ1LDO ES2AJ RR73
191800  -3  822  OZ1LDO GJ0KYZ -09 (x5)

80m

UTC    dB Audio  Message
182230 -11 2124  OZ1LDO DF26FIFA -04

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.

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