LZ1ZF — 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: Bulgaria Most frequent locator attributed to this token: KN22

Receiver-side FT8 activity involving LZ1ZF, decoded by SO8OO in southeastern Poland. 63,873 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 85 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-10-19.

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 63,873 FT8 messages attributed to LZ1ZF as the transmitting token by decoded message structure across 85 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (69%), followed by 40 m (19%) and 80 m (6%). Decoded messages were spread across the UTC day; the busiest six-hour window (17:00-23:00 UTC) held 34% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (60%); the estimated median was -6.6 dB.

Overview

63,873

Messages attributed

UTC dates decoded

2,985

Active 15-min windows

-6.6 dB

Estimated median S/N

Bands

160m · 306 80m · 3,735 60m · 2,054 40m · 11,931 20m · 44,113 10m · 1,734

First attributed message: 2026-06-10
Last attributed message: 2026-10-19 06:37 UTC

Observed FT8 message patterns

Attributed sample: 63,873 messages
Active dates: 85 UTC dates
Estimated median S/N: -6.6 dB
Estimated 10th-90th percentile: -16 to +4.5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7,058, moderate (-15 to -9 dB) 18,285, strong (≥ -8 dB) 38,530.

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 LZ1ZF in decoded directed-looking exchanges:

RZ7KR · European Russia ×10 HA1ZW · Hungary ×8 M8KKH · England ×6 OK4RQ · Czech Republic ×5 DG5PW · Fed. Rep. of Germany ×5 HA1BF · Hungary ×5 IW5ALZ · Italy ×5 RA6OD · European Russia ×5 SA3KAK · Sweden ×5 SP1ZMO · Poland ×4 IZ5FSO · Italy ×4 M9VVE · England ×4

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 LZ1ZF

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 · 56,768 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 863 km (approx.)
Last such locator decoded: 2026-10-19 06:37 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	LZ1ZF S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-19 06:31	40m	-4 / +2	GJ0KYZ	-10 / -12	5	✓ Full exchange observed
10-19 06:27	40m	- / -7	GJ0KYZ	-14 / -	3	Partial capture
10-19 06:20	40m	-4 / -	R3ZDU	-9 / -12	3	Partial capture
10-19 06:10	40m	- / +2	GJ0KYZ	-13 / -	4	Partial capture
10-19 06:05	40m	- / -	G7IGN	-20 / -	2	Partial capture
10-19 06:02	40m	- / -4	GJ0KYZ	-13 / -	6	Partial capture
10-19 05:55	40m	+1 / -	SP6TSE	-17 / -15	12	Partial capture
10-19 05:48	40m	-4 / -12	IU2IDU	-12 / -13	4	✓ Full exchange observed
10-19 05:46	40m	-5 / -	RZ3QN	- / -15	2	Partial capture
10-19 05:38	40m	- / -	DD2FP	-11 / -	3	Partial capture
10-19 05:38	40m	- / 0	GJ0KYZ	-18 / -	3	Partial capture
10-19 05:35	40m	- / -	F4DVP	-20 / -	2	Partial capture
10-19 03:56	40m	-22 / -9	EC3A	-8 / -14	5	✓ Full exchange observed
10-19 03:54	40m	- / +5	S55DX	-16 / -	2	✓ Closing fragment
10-19 03:50	40m	- / +5	RK4FF	-2 / -	2	✓ Closing fragment
10-19 03:48	40m	- / +8	F4EQH	+9 / -	2	Partial capture
10-19 03:44	40m	-20 / -5	EC3A	-5 / -	4	Partial capture
10-19 00:34	80m	- / -5	DK7JR	-14 / -	2	✓ Closing fragment
10-18 22:23	80m	-9 / -5	RA9FUE	-13 / -11	5	✓ Full exchange observed
10-18 22:19	80m	-10 / -	IU8FUI	- / -12	3	Partial capture
10-18 22:13	80m	-8 / -	DO9BLX	- / -12	2	✓ Closing fragment
10-18 22:10	80m	-10 / -	R9ON	- / -15	2	✓ Closing fragment
10-18 22:09	80m	-9 / -11	ON1BH	-4 / -7	4	✓ Full exchange observed
10-18 22:08	80m	-12 / -	IU7KEG	-15 / -1	3	✓ Closing observed
10-18 22:07	80m	-12 / -	TA1APU	- / -6	3	✓ Closing fragment
10-18 22:03	80m	-2 / -2	R5KH	-12 / -1	6	✓ Full exchange observed
10-18 22:02	80m	-3 / -8	DC4CP	-3 / -10	5	✓ Full exchange observed
10-18 21:57	80m	-14 / -7	RA3WPF	-7 / -	3	✓ Closing observed
10-18 21:56	80m	-4 / -5	R2AX	-12 / -13	3	Partial capture
10-18 21:55	80m	- / -	DO8PAT	0 / -	2	Partial capture
10-18 21:54	80m	- / -	CT2GQA	-24 / -	2	Partial capture
10-18 21:52	80m	-6 / -	UR4UT	- / +1	2	Partial capture
10-18 21:35	80m	-8 / -9	RD9M/3	-4 / -10	2	Partial capture
10-18 21:32	80m	- / -	ON4MAP	-12 / -	6	Partial capture
10-18 21:30	80m	-8 / -7	ON5EL	-2 / -9	4	✓ Full exchange observed
10-18 21:13	80m	-11 / -11	IV3APH	-5 / -12	4	✓ Full exchange observed
10-18 21:12	80m	- / -	DD8BA	+7 / -	8	Partial capture
10-18 21:11	80m	-8 / -	JH0INP	- / -12	2	Partial capture
10-18 20:50	80m	- / -	F1HSY	-13 / -	2	Partial capture
10-18 20:50	80m	- / -	JI2FBG	-24 / -	2	Partial capture
10-18 20:43	80m	- / -	DD8BA	+7 / -	14	Partial capture
10-18 20:34	80m	- / -	JA7FTR	+2 / -	4	Partial capture
10-18 20:28	80m	- / -	JA7FTR	-5 / -	2	Partial capture
10-18 20:27	80m	- / -16	JH0RNN	-14 / -	2	✓ Closing fragment
10-18 20:23	80m	-17 / -	RW6MMU	- / -13	2	✓ Closing fragment
10-18 20:21	80m	-17 / -16	SP5GMM	0 / -7	5	✓ Full exchange observed
10-18 20:15	80m	-12 / -3	ER5DX	-6 / -4	3	Partial capture
10-18 20:12	80m	- / -	F5PPN	-17 / -	4	Partial capture
10-18 20:12	80m	- / -18	JA0CRI	-10 / -	3	✓ Closing fragment
10-18 20:09	80m	- / -	HB9TKB	-9 / -	11	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
063130  -1 1336  CQ LZ1ZF KN22
063145  -9 1337  LZ1ZF GJ0KYZ +02
063200  -2 1336  GJ0KYZ LZ1ZF R-12
063215 -12 1337  LZ1ZF GJ0KYZ RR73
063230  -5 1335  GJ0KYZ LZ1ZF 73
063300  -4 1335  CQ LZ1ZF KN22 (x10)

80m

UTC    dB Audio  Message
222400 -10 1326  RA9FUE LZ1ZF -11
222415 -12  995  LZ1ZF RA9FUE R-05
222430  -8 1326  RA9FUE LZ1ZF RR73
222445 -14  995  LZ1ZF RA9FUE 73
222500  -7 1326  CQ LZ1ZF KN22 (x9)
003415 -18 1328  LZ1ZF DK7JR R-05 (x2)

160m

UTC    dB Audio  Message
193615 -24 1556  CQ LZ1ZF KN22 (x9)
194800  +3 2259  LZ1ZF HG9FS KN08
194815 -23 1556  CQ LZ1ZF KN22 (x5)

60m

UTC    dB Audio  Message
035445  -5 1367  DG1KFR LZ1ZF -03 (x2)
035530 -12 1451  LZ1ZF DG1KFR 73
035545  -8 1367  CQ LZ1ZF KN22 (x12)

20m

UTC    dB Audio  Message
133130 -17 2202  LZ1ZF DG1KSA +04
133200  -6 1193  LZ1ZF PA5FER -15
133200 -11 2202  LZ1ZF DG1KSA +04
133230 -12 1192  LZ1ZF PA5FER -15
133230  -9 2202  LZ1ZF DG1KSA +04
133300 -14 1192  LZ1ZF PA5FER -15 (x2)
134830  -4  951  LZ1ZF DL3EBJ +21 (x2)
135700 -20 1451  LZ1ZF OP0WWA JO10
150530 -17 1414  LZ1ZF PA1AMS R-12
150930  -8 1414  LZ1ZF M7GJO -18 (x2)
151500 -14 2073  LZ1ZF PA1SW R-11
191000  +1 2248  LZ1ZF M7SZB -15

10m

UTC    dB Audio  Message
200115 -20 1438  CQ LZ1ZF KN22                         a1 (x5)
200345 -15 1437  OZ7DR LZ1ZF KN22 (x2)
200445 -19 1437  DL8LE LZ1ZF KN22 (x2)
202545 -23 1439  CQ LZ1ZF KN22                         a1 (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.

CW

7 CW reception events in the last 30 days.

40m: 7 events; last heard 2026-10-11 16:34 UTC

Latest CW receptions

UTC	Band	kHz	S/N · 500 Hz	WPM	Listen
2026-10-11 16:34:13	40m	7012.542	17 dB	—	WebSDR ↗
2026-10-11 16:31:34	40m	7012.541	19.3 dB	35.5	WebSDR ↗
2026-10-11 16:28:03	40m	7012.542	20.4 dB	—	WebSDR ↗
2026-10-11 16:24:23	40m	7012.542	19.5 dB	—	WebSDR ↗
2026-10-11 16:10:51	40m	7014.042	24.6 dB	—	WebSDR ↗
2026-10-07 17:09:30	40m	7020.544	21.1 dB	40.4	WebSDR ↗
2026-10-07 17:07:16	40m	7020.545	23.3 dB	—	WebSDR ↗

CW reception history

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