LZ1JZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Bulgaria Most frequent locator attributed to this token: KN22

Receiver-side FT8 activity involving LZ1JZ, decoded by SO8OO in southeastern Poland. 3,090 FT8 messages attributed to this token as transmitter, on 60m, 20m, 10m, across 33 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-08-12.

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 3,090 FT8 messages attributed to LZ1JZ as the transmitting token by decoded message structure across 33 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (53%), followed by 20 m (45%) and 60 m (2%). Most decodes (51%) fell within the six-hour window 04:00-10:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (71%); the estimated median was -2.3 dB.

Overview

3,090

Messages attributed

UTC dates decoded

251

Active 15-min windows

-2.3 dB

Estimated median S/N

Bands

60m · 62 20m · 1,401 10m · 1,627

First attributed message: 2026-06-07
Last attributed message: 2026-08-12 05:16 UTC

Observed FT8 message patterns

Attributed sample: 3,090 messages
Active dates: 33 UTC dates
Estimated median S/N: -2.3 dB
Estimated 10th-90th percentile: -15.2 to +15 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 304, moderate (-15 to -9 dB) 584, strong (≥ -8 dB) 2,202.

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 LZ1JZ in decoded directed-looking exchanges:

IK4LZH · Italy ×6 OE5WRO · Austria ×4 M6MHG · England ×2 UA6HRB · European Russia ×2 UR4QWW · Ukraine ×2 RD3BTW · European Russia ×2 TM2WWA · France ×2 DG5PW · Fed. Rep. of Germany ×2 SP6AMI · Poland ×2 HA3GX · Hungary ×2 DL3RDO · Fed. Rep. of Germany ×2 M0IOW · England

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 LZ1JZ

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: KN22 · 2,152 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 863 km (approx.)
Last such locator decoded: 2026-08-12 05:16 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	LZ1JZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-12 20:48	10m	- / -8	DH7ZP	-4 / -	5	✓ Closing fragment
08-12 20:48	10m	- / -3	DO2YJG	-17 / -	3	✓ Closing fragment
08-12 20:36	10m	- / +9	PA4O	+8 / -	3	✓ Closing fragment
08-12 20:28	10m	- / -6	DL9PN	-1 / -	3	✓ Closing fragment
08-12 20:18	10m	- / +1	DN9DKN	+3 / -	8	✓ Closing fragment
08-12 04:51	20m	0 / -	G8OO	- / -11	2	✓ Closing fragment
08-12 04:49	20m	-6 / -	5Z4VJ	- / -14	2	Partial capture
08-11 20:40	60m	+4 / -	GB8VJ	- / -13	4	Partial capture
08-11 20:38	60m	0 / -	LZ5UY	+2 / -	4	✓ Full exchange observed
08-11 20:36	60m	-1 / -	LY2HM	-14 / -14	4	✓ Closing observed
08-11 20:35	60m	0 / -5	SP5JMA	+3 / 0	5	✓ Full exchange observed
08-10 21:10	60m	0 / -8	M0UTD	+2 / -11	5	✓ Full exchange observed
08-10 21:08	60m	-2 / -9	DG5PW	-8 / -11	5	✓ Full exchange observed
08-10 21:05	60m	-2 / -3	SM1ALH	-2 / -4	4	✓ Full exchange observed
08-10 21:04	60m	-2 / -5	SP6LUT	+6 / -4	5	✓ Full exchange observed
08-10 21:02	60m	-1 / -	OE5WRO	- / -18	3	✓ Closing fragment
08-10 20:58	60m	0 / +4	OM1AGE/P	-1 / -9	5	✓ Full exchange observed
08-10 20:57	60m	-2 / 0	IK0TUM	-15 / -11	5	✓ Full exchange observed
08-10 20:51	60m	+5 / -	9J2FI	- / -15	8	✓ Closing fragment
08-10 16:26	10m	-20 / -	DL4YDR	- / -16	2	✓ Closing fragment
08-10 15:52	10m	-17 / -	CT3MD	- / -10	3	Partial capture
08-10 15:51	10m	-17 / -	DK8VX	- / +3	2	✓ Closing fragment
08-10 15:47	10m	-18 / -	DO1BHM	- / -5	2	✓ Closing fragment
08-10 15:42	10m	-18 / -	F5PTY	- / -4	4	Partial capture
08-10 14:57	10m	-19 / -	E75D	- / +1	3	✓ Closing fragment
08-10 14:47	10m	-17 / -	PE9JAN	- / -16	3	Partial capture
08-10 14:46	10m	-17 / -	YO2LFP	- / +6	3	✓ Closing fragment
08-10 05:09	20m	-3 / -	R6LKG	- / -14	3	Partial capture
08-10 02:26	20m	- / -	RK6AAC	-16 / -	3	Partial capture
08-09 17:27	10m	-14 / -	OK2JRQ	- / -4	3	Partial capture
08-09 10:43	10m	- / -	HB9CCM	-16 / -	2	Partial capture
08-09 10:32	10m	-10 / -	SP7SZJ	- / -7	2	✓ Closing fragment
08-09 09:46	10m	-11 / -	2E0MBH	- / -20	2	Partial capture
08-09 09:43	10m	-12 / -	EA3GVL	- / -12	2	✓ Closing fragment
08-09 09:33	10m	-8 / -	SQ8V	- / +1	2	✓ Closing fragment
08-09 09:23	10m	-5 / -	DA6DE	- / -12	3	Partial capture
08-09 09:21	10m	-3 / -	OE5WRO	- / -6	4	Partial capture
08-07 10:28	10m	-8 / -	DL1SIM	- / -8	2	✓ Closing fragment
08-07 10:17	10m	-13 / -	G5KUE	- / -6	3	✓ Closing fragment
08-07 10:13	10m	-15 / -	DO5RBB	- / -18	3	Partial capture
08-07 10:12	10m	-16 / -	DO7RMS	- / -1	2	✓ Closing fragment
08-07 10:06	10m	-12 / -	DO7RMS	- / +4	2	Partial capture
08-07 09:58	10m	-10 / -	RC6OZ	- / -16	4	Partial capture
08-07 09:56	10m	-14 / -	OE3ZIO	- / -6	2	✓ Closing fragment
08-07 09:49	10m	-16 / -	G4RRM	- / -14	2	Partial capture
08-07 09:05	10m	- / +2	PC2K	-11 / -	4	✓ Closing fragment
08-07 08:48	10m	-9 / -	DN9RV	- / -4	3	✓ Closing fragment
08-07 08:47	10m	-17 / -	DL6AZ	-21 / +8	3	✓ Closing observed
08-07 08:39	10m	-16 / -	ON4KVI	- / -4	2	Partial capture
08-07 08:38	10m	-22 / -	OE5WRO	- / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
202215  +1 2991  LZ1JZ DN9DKN 73
202815  -2 2844  LZ1JZ DL9PN R-06 (x3)
203645  +6  863  LZ1JZ PA4O JO33 (x3)
204815 -16 1527  LZ1JZ DO2YJG JO31
204815  -4 1381  LZ1JZ DH7ZP JO40
204845 -16 1527  LZ1JZ DO2YJG R-03
204845  -5 1381  LZ1JZ DH7ZP JO40
204945 -18 1527  LZ1JZ DO2YJG 73
204945  -1 1382  LZ1JZ DH7ZP JO40 (x3)

20m

UTC    dB Audio  Message
050700  +2  835  CQ LZ1JZ KN22 (x15)

60m

UTC    dB Audio  Message
203815  +2 2906  LZ1JZ LZ5UY KN22
203830  -1 1304  LZ5UY LZ1JZ +20
203845  +1 2907  LZ1JZ LZ5UY R+29
203900  +0 1304  LZ5UY LZ1JZ RR73
203930  +1 1304  CQ LZ1JZ KN22
204030  +4 1304  GB8VJ LZ1JZ R-13 (x4)
204230  +2 1304  CQ LZ1JZ KN22 (x6)

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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee