SP8MZB — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: KO00

Receiver-side FT8 activity involving SP8MZB, decoded by SO8OO in southeastern Poland. 93 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 15 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-18.

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 93 FT8 messages attributed to SP8MZB as the transmitting token by decoded message structure across 15 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (45%), followed by 20 m (27%) and 80 m (18%). Several six-hour UTC windows tied for the largest share (63%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

93
Messages attributed
15
UTC dates decoded
32
Active 15-min windows
-11 dB
Estimated median S/N

Bands

160m · 3 80m · 17 40m · 42 20m · 25 10m · 6
First attributed message: 2026-06-08
Last attributed message: 2026-09-18 11:59 UTC

Observed FT8 message patterns

Attributed sample
93 messages
Active dates
15 UTC dates
Estimated median S/N
-11 dB
Estimated 10th-90th percentile
-15 to +14 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 46, strong (≥ -8 dB) 40.

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 SP8MZB 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 SP8MZB

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
KO00 · 42 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
84 km (approx.)
Last such locator decoded
2026-09-09 20:46 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 UTCBandSP8MZB S/NCounterpartCounterpart S/NMsgsCapture
09-18 21:18 40m - / -2 ON1DGN -8 / - 2 ✓ Closing fragment
09-18 21:14 40m - / +4 OZ5AGJ -2 / - 3 ✓ Closing fragment
09-18 21:11 40m - / -5 PE1NPS -6 / - 3 ✓ Closing fragment
09-18 21:10 40m - / +3 RV3GZ -7 / - 6 ✓ Closing fragment
09-18 11:56 40m -5 / -12 SO100PKP -15 / -3 3 Partial capture
09-17 21:03 40m -24 / -3 ON8WR -16 / -11 3 Partial capture
09-17 09:15 40m 0 / - 9A5MP - / -14 3 Partial capture
09-11 21:41 40m - / +5 MW7RHR -2 / - 2 ✓ Closing fragment
09-11 21:36 40m - / -9 DL3IAK -9 / - 2 Partial capture
09-11 21:35 40m - / +10 HB9CNU +1 / - 3 ✓ Closing fragment
09-11 21:34 40m - / +4 T77RN -10 / - 2 ✓ Closing fragment
09-10 21:23 80m +14 / - Z62NS - / +1 3 Partial capture
09-09 20:51 40m - / +1 R5AV +3 / - 2 ✓ Closing fragment
09-09 20:49 40m -15 / - OT4R -5 / - 2 ✓ Closing observed
09-09 20:47 40m - / -1 IK5EEA -2 / - 2 Partial capture
09-09 20:47 40m -15 / - JO4IPQ -24 / - 2 ✓ Closing observed
09-09 20:41 80m - / -18 4L7T -17 / - 3 ✓ Closing fragment
09-06 22:33 40m - / - IU3WOH +5 / - 2 Partial capture
09-06 22:32 40m -12 / +5 IU8RFW -2 / -3 4 ✓ Full exchange observed
09-06 22:31 40m -10 / -11 EB3JT -6 / -3 4 ✓ Full exchange observed
09-06 22:27 40m -12 / -5 RA6OY +9 / - 8 ✓ Closing observed
09-06 22:27 40m -12 / - SP5EXA +1 / -4 7 Partial capture
09-06 22:24 40m -10 / - IU8RFW -8 / -1 2 Partial capture
09-06 22:24 40m -11 / - EA8DGI - / - 3 ✓ Closing fragment
09-01 21:14 80m +14 / - IQ4JO +4 / -6 3 Partial capture
09-01 21:14 80m +14 / -7 UR3QCB -4 / -9 5 ✓ Full exchange observed
09-01 21:13 80m +19 / - TK4TH - / - 2 Partial capture
08-31 22:05 80m +21 / -7 HG3FMZ +9 / - 5 Partial capture
08-31 22:03 40m - / +9 OK1AYM +15 / - 3 ✓ Closing fragment
08-31 21:59 40m - / +6 PC2J +10 / - 3 ✓ Closing fragment
08-31 21:53 40m - / - DK8HC -4 / - 3 Partial capture
08-31 21:52 40m - / +10 PA2KV +10 / - 3 ✓ Closing fragment
08-31 12:36 40m -2 / - OH0KCE - / - 5 Partial capture
08-30 21:39 40m -13 / - OS4K - / -13 2 ✓ Closing fragment
08-30 21:37 40m -14 / - SV9QWC -8 / - 2 ✓ Closing observed
08-27 21:17 20m -15 / - C6AZB - / - 4 Partial capture
08-27 21:12 20m -16 / - C6AZB - / - 4 Partial capture
08-27 20:27 80m -3 / - YO4KMU -2 / -7 4 ✓ Closing observed
08-27 14:45 40m -8 / - HB9SFL - / -13 3 ✓ Closing fragment
08-27 14:33 20m -12 / - ZL2NU - / -19 4 Partial capture
08-26 21:29 40m -12 / -10 CN8NS -3 / - 3 Partial capture
08-26 21:27 40m -12 / -16 HL2ADO -14 / -9 5 ✓ Full exchange observed
08-26 11:55 20m -13 / - 7X2KF - / -23 3 ✓ Closing fragment
08-24 22:18 20m -14 / - PT7OT - / - 2 Partial capture
08-24 22:16 20m -15 / -19 XQ1KK -3 / - 3 ✓ Closing observed
08-24 10:21 20m - / +1 OE8PIT -4 / - 4 ✓ Closing fragment
08-24 10:16 20m - / - DL1R +1 / - 8 Partial capture
08-24 10:15 20m -13 / -1 IQ4JO +9 / - 4 ✓ Closing observed
08-19 20:28 20m - / -8 YO4NF +2 / - 2 ✓ Closing fragment
08-18 21:54 160m +4 / - LB7ZG -17 / -14 4 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
211030  -7 2451  SP8MZB RV3GZ KO92 (x2)
211100  -2 1637  SP8MZB PE1NPS JO22
211130  -8 2451  SP8MZB RV3GZ KO92
211130  -7 1637  SP8MZB PE1NPS R-05
211200  -5 2450  SP8MZB RV3GZ KO92
211200  -9 1637  SP8MZB PE1NPS 73
211230  -6 2450  SP8MZB RV3GZ R+03 (x2)
211400  -1 2452  SP8MZB OZ5AGJ JO47 (x3)
211500 -19 1454  SP8MZB EA7UW IM76
211800  -8 1337  SP8MZB ON1DGN -02 (x2)
80m 
UTC    dB Audio  Message
211430 +12 2473  CQ SP8MZB KO00
211445  +0 2472  SP8MZB UR3QCB KN77
211445  +4 2228  SP8MZB IQ4JO JN63
211500 +15 2473  UR3QCB SP8MZB -09
211515  -2 2472  SP8MZB UR3QCB R-07
211530 +14 2473  UR3QCB SP8MZB RR73
211545  -9 2472  SP8MZB UR3QCB 73
211600 +14 2472  IQ4JO SP8MZB -06 (x2)
204115 -16  241  SP8MZB 4L7T R-18 (x3)
212345 +14 2473  Z62NS SP8MZB +01 (x3)
20m 
UTC    dB Audio  Message
143315 -13 2540  ZL2NU SP8MZB R-19 (x4)
210530  -6 3078  SP8MZB OA1F RR73
211230 -17 2540  C6AZB SP8MZB KO00 (x8)
122245 -14 2540  ON/HB9HVW/P SP8MZB KO00
124345  +3 1857  SP8MZB RV6F R+01
160m 
UTC    dB Audio  Message
215415  +3 2467  LB7ZG SP8MZB KO00 (x2)
215500 -17 1949  SP8MZB LB7ZG RR73
215515  +5 2467  LB7ZG SP8MZB 73

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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