Z33B — 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: North Macedonia Most frequent locator attributed to this token: KN01

Receiver-side FT8 activity involving Z33B, decoded by SO8OO in southeastern Poland. 54 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-17 and 2026-10-12.

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 54 FT8 messages attributed to Z33B as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (57%), followed by 40 m (26%) and 10 m (17%). Several six-hour UTC windows tied for the largest share (56%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

54
Messages attributed
5
UTC dates decoded
9
Active 15-min windows
-12 dB
Estimated median S/N

Bands

40m · 14 20m · 31 10m · 9
First attributed message: 2026-06-17
Last attributed message: 2026-10-12 19:24 UTC

Observed FT8 message patterns

Attributed sample
54 messages
Active dates
5 UTC dates
Estimated median S/N
-12 dB
Estimated 10th-90th percentile
-19 to 0 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 15, moderate (-15 to -9 dB) 18, strong (≥ -8 dB) 21.

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 Z33B 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 Z33B

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
KN01 · 33 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
940 km (approx.)
Last such locator decoded
2026-10-12 19:24 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 UTCBandZ33B S/NCounterpartCounterpart S/NMsgsCapture
10-21 20:42 40m - / - MW7RHR -9 / - 3 Partial capture
10-21 20:30 40m - / - F4MVU -6 / - 3 Partial capture
10-21 20:18 40m - / - M9PJC -6 / - 5 Partial capture
10-21 20:16 40m - / - M0WOO -9 / - 5 Partial capture
10-12 19:33 40m - / - OH6EEC -5 / - 3 Partial capture
10-12 19:31 40m - / -6 DL7ACA 0 / - 3 ✓ Closing fragment
10-12 19:31 40m - / -20 R1BMZ +1 / - 3 Partial capture
10-12 19:29 40m - / - EA3CXN -13 / - 3 Partial capture
10-12 19:27 40m - / - R7ZY 0 / - 2 Partial capture
10-12 19:26 40m - / - M8KUG -11 / - 5 Partial capture
10-12 19:26 40m - / -11 MI0OBC -7 / - 4 Partial capture
10-12 19:24 40m -17 / - RA6FYL -6 / - 2 ✓ Closing observed
10-12 19:21 40m - / - OH6EEC -3 / - 15 Partial capture
10-12 19:21 40m -11 / - RZ4FWA - / -14 3 Partial capture
10-12 19:19 40m -12 / -6 DL7ACA 0 / -11 4 Partial capture
10-12 19:18 40m -16 / +3 4Z4DX -7 / -15 3 ✓ Full exchange observed
09-23 06:13 40m - / -10 SP9UXS -13 / - 2 Partial capture
09-23 06:07 40m - / 0 S51DD -2 / - 5 ✓ Closing fragment
09-23 06:04 40m - / -13 F1ROA -16 / - 7 Partial capture
08-28 09:06 20m - / - F4LSL +2 / - 5 Partial capture
08-28 08:56 20m - / - F4LSL +10 / - 2 Partial capture
08-27 16:09 20m - / - DA1EA +12 / - 3 Partial capture
08-27 15:41 20m - / - EA1KCN -14 / - 3 Partial capture
08-27 15:36 20m - / -6 BG0DAP +2 / - 8 ✓ Closing fragment
08-27 13:55 20m - / - A61FJ -10 / - 2 Partial capture
08-22 19:11 20m - / - DL1R -12 / - 2 Partial capture
08-22 19:10 20m - / -14 M7KHO +2 / - 8 Partial capture
08-22 19:04 20m - / - IU0AFP -2 / - 2 Partial capture
07-29 11:50 10m - / -3 F1PBZ -2 / - 2 ✓ Closing fragment
07-27 08:58 10m - / - F4BHK -5 / - 3 Partial capture
07-26 19:36 40m - / - RV3H -22 / - 3 Partial capture
07-26 19:33 40m - / -2 LZ2PC -12 / - 2 ✓ Closing fragment
07-26 19:31 40m - / -18 PD0RCQ -11 / - 4 Partial capture
07-26 19:30 40m - / -5 DK5ON -21 / - 4 Partial capture
07-26 19:26 40m - / +2 IZ4VSD -18 / - 3 ✓ Closing fragment
07-26 19:23 40m - / -9 YO6QDY -18 / - 8 ✓ Closing fragment
07-26 19:10 20m - / -10 F1ODM +3 / - 2 Partial capture
07-25 15:36 10m - / -20 PD0HLA -6 / - 2 ✓ Closing fragment
07-25 15:29 10m -19 / -17 PD0HLA -6 / -14 2 Partial capture
07-25 14:57 10m - / - UX3HX -16 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
201745  -8 1045  Z33B M0WOO IO94 (x2)
201845  -5  944  Z33B M9PJC JO01
201845 -12 1045  Z33B M0WOO IO94
201915  -6  944  Z33B M9PJC JO01 (x4)
202645  -7 2536  Z33B F1PBZ -04
203045  -5 1051  Z33B F4MVU JN24 (x3)
204215 -11 1053  Z33B MW7RHR IO73 (x3)
80m 
UTC    dB Audio  Message
184115  +4  512  Z33B DM0CRACY -02
20m 
UTC    dB Audio  Message
154100 -12  882  Z33B EA1KCN IN53
154100  +0  327  Z33B BG0DAP 73
154230 -14 2504  Z33B EA1KCN IN53 (x2)
154745 -10 2803  Z33B UA0LQE PN53
160915 +13 1959  Z33B DA1EA JO31 (x3)
085630  +7 2179  Z33B F4LSL JN36 (x7)
10m 
UTC    dB Audio  Message
153300 -19 1055  OK1WE Z33B -05
153615 -11 2660  Z33B PD0HLA RR73 (x2)
153815 -12  594  Z33B G4TTQ JO01
153900 -18 1055  CQ Z33B KN01
085845  -4 1973  Z33B F4BHK JN08 (x3)
115045  +0 2690  Z33B F1PBZ -03 (x2)
120115 -23 1847  Z33B RY6O KN87
120900 -24 1852  CQ Z33B KN01 (x2)
121100 -24 1853  DL1AQY Z33B R-06
121800 -24 1855  CQ Z33B KN01

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

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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