IU2LSZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN45

Receiver-side FT8 activity involving IU2LSZ, decoded by SO8OO in southeastern Poland. 178 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 12 UTC dates in the available aggregate history. Observed between 2026-07-14 and 2026-09-19.

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 178 FT8 messages attributed to IU2LSZ as the transmitting token by decoded message structure across 12 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (51%), followed by 80 m (38%) and 20 m (11%). Most decodes (99%) fell within the six-hour window 18:00-00:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (64%); the estimated median was -6 dB.

Overview

178
Messages attributed
12
UTC dates decoded
34
Active 15-min windows
-6 dB
Estimated median S/N

Bands

80m · 68 40m · 90 20m · 20
First attributed message: 2026-07-14
Last attributed message: 2026-09-19 20:26 UTC

Observed FT8 message patterns

Attributed sample
178 messages
Active dates
12 UTC dates
Estimated median S/N
-6 dB
Estimated 10th-90th percentile
-14 to +2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, moderate (-15 to -9 dB) 51, strong (≥ -8 dB) 114.

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 IU2LSZ in decoded directed-looking exchanges:

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 IU2LSZ

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
JN45 · 87 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,075 km (approx.)
Last such locator decoded
2026-09-19 20:21 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 UTCBandIU2LSZ S/NCounterpartCounterpart S/NMsgsCapture
09-19 20:24 80m -4 / -7 GM1DSK -9 / -15 3 Partial capture
09-19 20:15 80m -8 / - F8ADF - / -9 2 Partial capture
09-19 20:10 80m -3 / - EA3DNC - / -4 2 ✓ Closing fragment
09-19 20:07 80m -9 / - PC2J - / -9 2 ✓ Closing fragment
09-19 20:00 80m -15 / -18 RK6OQ -8 / - 4 ✓ Closing observed
09-19 19:57 80m -3 / -6 SV1DKR -2 / -12 5 ✓ Full exchange observed
09-19 19:56 80m -1 / - RK6OQ +3 / -12 2 Partial capture
09-19 19:56 80m -2 / -2 OK1UOZ +11 / -5 5 ✓ Full exchange observed
09-13 23:09 80m - / 0 SV8/F2VX -18 / - 4 Partial capture
09-13 23:08 80m +1 / - OL900LTV - / - 3 Partial capture
09-13 23:06 80m -6 / - OE2AGZ - / - 2 Partial capture
09-13 23:00 80m -8 / - R5DT - / 0 2 Partial capture
09-13 22:55 80m -7 / - DO5HB - / +2 2 ✓ Closing fragment
09-13 22:52 80m -12 / -5 F1PBZ +8 / - 3 ✓ Closing observed
09-13 22:49 80m - / -6 M6XZD -4 / - 3 ✓ Closing fragment
09-13 22:43 40m -24 / -10 KC1OXG -18 / -22 3 ✓ Full exchange observed
09-13 22:22 40m - / -7 EX7CQ -2 / - 2 ✓ Closing fragment
09-12 22:33 40m -10 / - KB1EFS - / - 3 ✓ Closing fragment
09-12 22:27 40m -15 / - WA4VLC - / - 2 Partial capture
09-12 22:20 40m -16 / - WA4VLC - / - 2 Partial capture
09-12 22:03 80m -14 / +8 PI4DX +9 / +3 5 ✓ Full exchange observed
09-12 21:58 80m -11 / - EA8DEG -4 / -3 4 ✓ Closing observed
09-12 21:55 80m -12 / -7 7X5CY -7 / -14 5 ✓ Full exchange observed
09-12 21:52 80m -3 / -11 YT2FA +1 / -14 6 ✓ Full exchange observed
09-12 21:49 80m -12 / -4 OE5ABL -6 / -2 6 ✓ Full exchange observed
09-12 21:47 80m -6 / -6 OZ1LGJ -6 / -7 5 ✓ Full exchange observed
09-12 21:45 80m - / - DO2HC -5 / - 3 Partial capture
09-11 22:30 40m -4 / - DK8HC - / -12 2 Partial capture
09-11 22:28 40m +1 / - G7RCQ - / -13 2 ✓ Closing fragment
09-11 22:28 40m -8 / - UR4QWW -21 / -15 3 Partial capture
09-11 22:26 40m +1 / -9 F1PBZ -4 / -1 4 ✓ Full exchange observed
09-11 22:20 40m -3 / - HZ1TT - / - 5 Partial capture
09-11 22:13 80m - / - DL6UXL -14 / - 2 Partial capture
09-11 22:10 80m - / -20 R5AV +4 / - 4 ✓ Closing fragment
09-06 19:46 80m - / -8 DO5HOK -1 / - 3 ✓ Closing fragment
08-31 22:57 40m -11 / - UN7PTN - / - 3 Partial capture
08-31 22:48 80m -14 / -14 SM7TZK +2 / -12 7 ✓ Full exchange observed
08-31 22:44 80m -7 / - SV9QWC - / -16 3 Partial capture
08-31 22:34 40m +2 / - UG0B - / - 2 Partial capture
08-31 22:31 40m 0 / -6 OK1WCF +2 / -8 4 ✓ Full exchange observed
08-31 22:29 40m +2 / -5 UA4FKT 0 / +3 4 ✓ Full exchange observed
08-31 22:29 40m +3 / -9 DL3MIB +3 / -9 7 ✓ Full exchange observed
08-31 22:28 40m -2 / -18 PW8BR -13 / -17 5 ✓ Full exchange observed
08-31 22:13 40m +1 / - RI1FJL - / -6 7 Partial capture
08-26 22:29 20m -14 / - ND9M - / - 2 ✓ Closing fragment
08-26 22:26 20m -11 / - KI5YNZ - / - 2 Partial capture
08-26 22:21 20m -9 / - M0PFX - / -10 2 ✓ Closing fragment
08-26 22:11 20m -8 / - RI1FJL - / - 2 Partial capture
08-25 22:51 40m +2 / - N2QN - / - 4 ✓ Closing fragment
08-25 22:50 40m 0 / - D2ACE - / -10 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
200045 -15  703  RK6OQ IU2LSZ RR73
200100  -8 1590  IU2LSZ RK6OQ 73
200645 -10  709  CQ IU2LSZ JN45
200715 -13  709  PC2J IU2LSZ -09 (x2)
201015  -2  709  CQ IU2LSZ JN45
201045  -1  709  EA3DNC IU2LSZ -04 (x2)
201415 -10  709  CQ IU2LSZ JN45
201515  -7  709  F8ADF IU2LSZ -09 (x2)
202115  +0  709  GM1DSK IU2LSZ JN45
202400  -9 1535  IU2LSZ GM1DSK -07
202445  -6  709  GM1DSK IU2LSZ R-15 (x2)
40m 
UTC    dB Audio  Message
223015  -5 1842  DK8HC IU2LSZ -12 (x2)
221900 -14 1975  N4NF IU2LSZ JN45
222030 -15 1975  WA4VLC IU2LSZ JN45 (x4)
223345 -11 1976  KB1EFS IU2LSZ JN45 (x3)
222200  -3 1715  IU2LSZ EX7CQ -07 (x2)
224330 -18  914  IU2LSZ KC1OXG -10
224345 -24 1890  KC1OXG IU2LSZ R-22
224400 -17  914  IU2LSZ KC1OXG RR73
20m 
UTC    dB Audio  Message
212915  -5  418  ND9M IU2LSZ JN45 (x2)
213215  -8  419  JH2BJL IU2LSZ JN45 (x2)
213615  -9  418  ND9M IU2LSZ R-11
221145  -8 1505  RI1FJL IU2LSZ JN45 (x2)
221900 -17  954  NR4L IU2LSZ JN45
222115 -11  953  M0PFX IU2LSZ -10 (x2)
222245 -13  953  PA0ARR IU2LSZ R-12
222600 -11  953  KI5YNZ IU2LSZ JN45 (x2)
222915 -13  952  ND9M IU2LSZ JN45 (x2)

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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