LZ5UY — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving LZ5UY, decoded by SO8OO in southeastern Poland. 3,976 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 24 UTC dates in the available aggregate history. Observed between 2026-06-26 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 3,976 FT8 messages attributed to LZ5UY as the transmitting token by decoded message structure across 24 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (79%), followed by 10 m (11%) and 20 m (10%). Most decodes (59%) fell within the six-hour window 20:00-02:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

3,976
Messages attributed
24
UTC dates decoded
251
Active 15-min windows
-13 dB
Estimated median S/N

Bands

First attributed message: 2026-06-26
Last attributed message: 2026-09-11 21:46 UTC

Observed FT8 message patterns

Attributed sample
3,976 messages
Active dates
24 UTC dates
Estimated median S/N
-13 dB
Estimated 10th-90th percentile
-19 to -1.4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,232, moderate (-15 to -9 dB) 1,586, strong (≥ -8 dB) 1,158.

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 LZ5UY

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 · 2,729 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
863 km (approx.)
Last such locator decoded
2026-09-11 21:46 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 UTCBandLZ5UY S/NCounterpartCounterpart S/NMsgsCapture
09-11 21:45 40m -8 / - EA1FC - / -7 2 ✓ Closing fragment
09-11 21:43 40m -12 / - BG4OOO - / -25 3 Partial capture
09-11 21:39 40m -7 / - DJ9GP - / -25 4 ✓ Closing fragment
09-11 21:37 40m -8 / -16 F1HFP -1 / -8 4 ✓ Full exchange observed
09-11 21:35 40m -7 / - PD1ICX - / -20 2 Partial capture
09-11 21:30 40m -10 / - JA1GHR - / -13 2 ✓ Closing fragment
09-11 21:28 40m -8 / - DG1ROL -1 / +2 4 Partial capture
09-11 21:25 40m -8 / -6 RA6AR -14 / 0 3 ✓ Full exchange observed
09-11 21:24 40m -9 / -1 ON6DL -2 / -1 5 ✓ Full exchange observed
09-11 21:20 40m -18 / -13 OK1TNM -2 / -2 4 ✓ Full exchange observed
09-11 21:15 40m -10 / - 6K5BXQ - / -20 2 Partial capture
09-11 20:42 40m -6 / - BG4OOO - / -19 3 Partial capture
09-11 20:36 40m -8 / - DK5EO -8 / -13 8 Partial capture
09-11 20:14 40m -10 / - BG0FQU - / -17 3 ✓ Closing fragment
09-11 20:13 40m -10 / - DK5AN/P -10 / -5 4 ✓ Closing observed
09-11 20:11 40m -10 / - JQ1SUO - / -19 2 ✓ Closing fragment
09-11 20:09 40m -9 / -15 M6MYC -10 / -11 6 ✓ Full exchange observed
09-11 20:05 40m -9 / - UX7QG - / 0 3 ✓ Closing fragment
09-11 20:04 40m -9 / -16 S57CT -5 / -6 7 ✓ Full exchange observed
09-11 20:02 40m -6 / - M6GPH - / -8 2 ✓ Closing fragment
09-11 19:59 40m -4 / - JA8EPO - / +1 2 ✓ Closing fragment
09-11 19:50 40m -5 / -12 2E0UMK -16 / -13 22 ✓ Full exchange observed
09-11 19:49 40m +2 / - HA3HZ - / -3 3 ✓ Closing fragment
09-11 19:46 40m 0 / 0 LY2BSW -14 / -2 5 ✓ Full exchange observed
09-11 19:44 40m +2 / +10 UX5UW -1 / - 5 ✓ Full exchange observed
09-07 07:52 40m -18 / - HB9IOB - / -15 3 Partial capture
09-07 07:44 40m -14 / -9 HA1ZW -5 / -3 4 ✓ Full exchange observed
09-07 07:38 40m -19 / -21 HB9IOB -21 / -14 11 ✓ Full exchange observed
09-07 07:31 40m -10 / -7 UA6AMF -22 / +3 3 ✓ Full exchange observed
09-07 07:12 40m -14 / - F4FQY -7 / -14 3 ✓ Closing observed
09-07 06:43 40m -14 / - RN3ZBX -9 / -5 2 ✓ Closing observed
09-07 06:40 40m -14 / - SP5ALV - / +9 2 ✓ Closing fragment
09-07 06:28 40m -15 / - SP2QVY - / -10 3 ✓ Closing fragment
09-07 06:24 40m -14 / - RJ6ON - / -2 2 ✓ Closing fragment
09-07 06:14 40m -13 / -7 G0BLB -6 / -1 4 ✓ Full exchange observed
09-07 06:04 40m -14 / - IZ5IOM - / -4 2 ✓ Closing fragment
09-07 05:51 40m -10 / - R6XW - / -15 4 ✓ Closing fragment
09-07 05:50 40m -11 / - YO5COG -18 / - 2 ✓ Closing observed
09-07 05:47 40m -11 / -11 UT0IN -2 / - 3 ✓ Closing observed
09-07 05:46 40m -13 / - SQ6PZL - / -8 2 ✓ Closing fragment
09-07 05:41 40m -13 / - RA3PGR - / -6 5 Partial capture
09-07 05:36 40m -8 / - DL7LTM -11 / -11 4 Partial capture
09-07 05:34 40m -5 / -11 RV3X -8 / +1 4 ✓ Full exchange observed
09-07 05:33 40m -4 / - SV7BAY -1 / - 5 ✓ Full exchange observed
09-07 05:30 40m -10 / - SP8V - / -4 3 Partial capture
09-07 05:28 40m -10 / -9 DG5PW -15 / -14 5 ✓ Full exchange observed
09-07 05:09 40m -10 / -21 PD2WL -19 / -15 20 Partial capture
09-07 04:42 40m -8 / - KE4GPS - / -22 3 ✓ Closing fragment
09-07 04:40 40m -7 / - EA4AOF - / -13 2 ✓ Closing fragment
09-07 04:36 40m -4 / - LA1SNA - / -14 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
213845  -8 2243  LZ5UY F1HFP 73
213900  -8 1376  DJ9GP LZ5UY -25 (x4)
214200  -7 1375  CQ LZ5UY KN22 (x3)
214330 -18 1375  BG4OOO LZ5UY R-25
214345  +2 2034  LZ5UY LZ2XA KN33
214400 -12 1375  BG4OOO LZ5UY R-25 (x2)
214530  -7 1375  EA1FC LZ5UY -07 (x2)
214630  -7 1375  CQ LZ5UY KN22
20m
UTC    dB Audio  Message
112645  +7 1992  LZ5UY UA3FO R-15 (x2)
113715 -14 1106  LZ5UY DG9MAQ 73
114945 -14 1411  LZ5UY IU4DTV -04
120045 +14 2185  LZ5UY ON7HM JO10 (x3)
120245  +5 1412  LZ5UY PD0PWH JO21 (x5)
121015  -3 1412  LZ5UY HB9RSG JN47 (x2)
121815 -19 1412  LZ5UY PE1GIX JO21
60m
UTC    dB Audio  Message
212500 -13 1318  LZ5UY F4FPR IN88
212500  -8 1656  LZ5UY DK5WL 73
212515  -9 1317  F4FPR LZ5UY -10
212530 -15 1318  LZ5UY F4FPR R-13
212545  -8 1317  F4FPR LZ5UY RR73
212600 -13 1318  LZ5UY F4FPR 73
212615  -8 1318  CQ LZ5UY KN22
212630 -20 1818  LZ5UY OE5WRO JN78
212645  -8 1318  OE5WRO LZ5UY -08 (x2)
212815  -9 1318  CQ LZ5UY KN22
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
10m
UTC    dB Audio  Message
191100 -15 1370  CQ LZ5UY KN22 (x2)
191230 -15 1369  DL3HN LZ5UY -05 (x2)
191330 -10 1371  CQ LZ5UY KN22
191400 -13 1371  OE3RAP LZ5UY -07 (x2)
191500 -21 1370  CQ LZ5UY KN22 (x5)
192400 -18 1370  DG1ASE LZ5UY -08 (x2)
200830 -20 1371  CQ LZ5UY KN22
80m
UTC    dB Audio  Message
202730  -5 1452  CQ LZ5UY KN22 (x2)
220645  -7 1432  LZ5UY SV9MBH KM25
220700 -16 1289  SV9MBH LZ5UY -03
220715 -13 1433  LZ5UY SV9MBH KM25
220800 -15 1289  SV9MBH LZ5UY RR73
220815 -13 1432  LZ5UY SV9MBH 73
220830 -18 1289  CQ LZ5UY KN22 (x3)
221045  +2 1289  LZ5UY OE6TNO JN77 (x5)

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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