LZ1ZF — FT8 activity observed at SO8OO

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. 60,879 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 75 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-10-03.

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 60,879 FT8 messages attributed to LZ1ZF as the transmitting token by decoded message structure across 75 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (72%), followed by 40 m (17%) and 80 m (6%). Decoded messages were spread across the UTC day; the busiest six-hour window (17:00-23:00 UTC) held 33% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (61%); the estimated median was -6.3 dB.

Overview

60,879
Messages attributed
75
UTC dates decoded
2,840
Active 15-min windows
-6.3 dB
Estimated median S/N

Bands

First attributed message: 2026-06-10
Last attributed message: 2026-10-03 04:45 UTC

Observed FT8 message patterns

Attributed sample
60,879 messages
Active dates
75 UTC dates
Estimated median S/N
-6.3 dB
Estimated 10th-90th percentile
-16 to +5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6,654, moderate (-15 to -9 dB) 17,241, strong (≥ -8 dB) 36,984.

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.

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 · 54,225 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
863 km (approx.)
Last such locator decoded
2026-10-03 04:45 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 UTCBandLZ1ZF S/NCounterpartCounterpart S/NMsgsCapture
10-03 04:43 40m - / - F3CJ -12 / - 3 Partial capture
10-03 04:42 40m - / +1 GJ0KYZ -5 / - 3 Partial capture
10-03 04:35 40m -9 / - SV9AUP - / -14 2 ✓ Closing fragment
10-03 04:35 40m - / - F3CJ -14 / - 4 Partial capture
10-03 04:33 80m - / - YO8XFU -11 / - 2 Partial capture
10-03 04:19 80m - / - DL3FBI -9 / - 2 Partial capture
10-03 04:14 80m - / - SP9OJ -4 / - 4 Partial capture
10-03 04:09 80m -7 / 0 HA3FUP -4 / -15 8 ✓ Full exchange observed
10-03 04:04 80m -5 / -9 SQ4PKO +2 / -15 9 ✓ Full exchange observed
10-03 03:59 80m - / - DF9JL -3 / - 2 Partial capture
10-03 03:52 80m - / - DL3FBI -2 / - 2 Partial capture
10-03 03:32 80m - / - DO8JB -2 / - 4 Partial capture
10-03 03:29 80m - / -1 ON1JP -12 / - 5 Partial capture
10-03 03:23 80m - / - HA8LD -6 / - 2 Partial capture
10-03 03:16 80m +2 / - R7DX - / - 2 Partial capture
10-03 03:15 80m +2 / - TA4SSK - / - 2 Partial capture
10-03 03:13 80m +2 / +4 EW8AAC -11 / -12 10 ✓ Full exchange observed
10-03 03:11 80m -1 / - LZ936BA -14 / +1 4 Partial capture
10-03 03:09 80m 0 / 0 DO1ID +10 / -7 5 Partial capture
10-03 03:07 80m -4 / -2 HA7TM +12 / +8 5 ✓ Full exchange observed
10-03 03:05 80m -1 / - SX2LGT -9 / -8 4 ✓ Closing observed
10-02 02:57 40m - / - KN1OBI -22 / - 2 Partial capture
10-02 02:29 40m - / -5 R3KKG -8 / - 2 ✓ Closing fragment
10-02 02:27 40m - / -7 HB9SEX -3 / - 3 ✓ Closing fragment
10-02 01:30 40m - / - KD4DC -14 / - 2 Partial capture
10-02 00:40 40m - / -3 RW6MMU -9 / - 3 ✓ Closing fragment
10-02 00:26 40m - / +3 G8FAT -18 / - 2 Partial capture
10-01 23:52 40m - / -13 HJ6UMR -6 / - 2 Partial capture
10-01 23:29 40m - / -5 RX9WM -14 / - 3 ✓ Closing fragment
10-01 23:24 40m - / -8 EA4HYO -14 / - 3 ✓ Closing fragment
10-01 23:15 40m - / -11 UA9SY -18 / - 4 Partial capture
10-01 22:56 40m -16 / - HB9GII - / -13 2 ✓ Closing fragment
10-01 22:56 40m - / - M7SDQ -15 / - 2 Partial capture
10-01 21:55 40m - / -7 ON1BH -1 / - 2 Partial capture
10-01 21:49 40m -11 / - DC9GT - / -12 2 ✓ Closing fragment
10-01 21:21 40m - / -9 EI2JD -3 / - 3 ✓ Closing fragment
10-01 21:15 40m -12 / -6 G0HSP -15 / -10 5 ✓ Full exchange observed
10-01 21:13 40m -15 / - EA7LHL - / -16 2 ✓ Closing fragment
10-01 20:55 40m - / - DL3GE -10 / - 3 Partial capture
10-01 20:54 40m - / -12 PD2V -8 / - 2 Partial capture
10-01 20:31 40m - / - F1HSY -14 / - 3 Partial capture
10-01 20:31 40m - / - G0HZG -18 / - 3 Partial capture
10-01 19:50 40m - / +1 PD3LR -12 / - 5 ✓ Closing fragment
10-01 19:48 40m - / - YO4FZV -14 / - 2 Partial capture
10-01 19:40 40m - / -7 IK1MJK -10 / - 3 ✓ Closing fragment
10-01 19:35 40m - / -7 R2SN -3 / - 3 ✓ Closing fragment
10-01 19:23 40m - / - DC9GT -13 / - 4 Partial capture
10-01 19:14 40m - / -13 PD2JV -8 / - 3 ✓ Closing fragment
10-01 19:10 40m - / -13 PD1SL -4 / - 3 ✓ Closing fragment
10-01 04:16 40m -1 / - UA3WG -16 / -17 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
044045  -9 1547  CQ LZ1ZF KN22 (x3)
044200  -7 1548  LZ1ZF GJ0KYZ +01
044215 -10 1548  CQ LZ1ZF KN22
044230  -4 1547  LZ1ZF GJ0KYZ +01
044245  -9 1547  CQ LZ1ZF KN22
044300  -4 1547  LZ1ZF GJ0KYZ +01
044300 -10 2102  LZ1ZF F3CJ JO10
044315 -13 1547  CQ LZ1ZF KN22
044330 -11 2103  LZ1ZF F3CJ JO10
044345  -9 1547  CQ LZ1ZF KN22
044430 -16 2102  LZ1ZF F3CJ JO10
044445 -11 1547  CQ LZ1ZF KN22
044515 -11 1326  OK1FIM LZ1ZF KN22
80m
UTC    dB Audio  Message
042745  -2 1264  CQ LZ1ZF KN22 (x11)
043300 -11 1264  LZ1ZF YO8XFU KN36
043300 -22 1092  LZ1ZF F6HAA JN19
043315  -6 1264  CQ LZ1ZF KN22
043330 -11 1264  LZ1ZF YO8XFU KN36
60m
UTC    dB Audio  Message
033715  -6 1335  CQ LZ1ZF KN22 (x2)
033815  -1 1335  VE2JCW LZ1ZF -12 (x2)
033915  -8 1335  W1NG LZ1ZF -19 (x2)
034015  -9 1335  VE2JCW LZ1ZF RR73
034045  -7 1335  CQ LZ1ZF KN22 (x8)
160m
UTC    dB Audio  Message
010145 -11 1256  CQ LZ1ZF KN22 (x8)
011015 -15 1255  SP9GCZ LZ1ZF KN22
011030 +13  580  LZ1ZF SP9GCZ -05
011045 -18 1256  SP9GCZ LZ1ZF R-08
011100 +11  580  LZ1ZF SP9GCZ RR73
011115 -16 1256  SP9GCZ LZ1ZF 73
011145 -15 1256  OH6MW LZ1ZF KN22
011345 -21 1256  CQ LZ1ZF KN22
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.

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