SP4MAZ — 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: Poland Most frequent locator attributed to this token: KO13

Receiver-side FT8 activity involving SP4MAZ, decoded by SO8OO in southeastern Poland. 91 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 5 UTC dates in the available aggregate history. Observed between 2026-10-12 and 2026-10-17.

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 91 FT8 messages attributed to SP4MAZ as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (98%), followed by 80 m (2%). Several six-hour UTC windows tied for the largest share (69%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.

Overview

91
Messages attributed
5
UTC dates decoded
15
Active 15-min windows
-16 dB
Estimated median S/N

Bands

First attributed message: 2026-10-12
Last attributed message: 2026-10-17 07:11 UTC

Observed FT8 message patterns

Attributed sample
91 messages
Active dates
5 UTC dates
Estimated median S/N
-16 dB
Estimated 10th-90th percentile
-21 to -11 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 50, moderate (-15 to -9 dB) 39, strong (≥ -8 dB) 2.

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 SP4MAZ

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
KO13 · 31 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
405 km (approx.)
Last such locator decoded
2026-10-17 07:08 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 UTCBandSP4MAZ S/NCounterpartCounterpart S/NMsgsCapture
10-17 07:08 40m -15 / -1 DL7ARV -2 / -6 9 ✓ Full exchange observed
10-17 07:08 40m - / - OK3MB -20 / - 2 Partial capture
10-17 07:08 40m - / -11 S56IAR -4 / - 2 Partial capture
10-17 06:57 40m -21 / - PD1BER -14 / - 2 ✓ Closing observed
10-17 06:54 40m -16 / -7 ON8WR -18 / -9 5 ✓ Full exchange observed
10-16 20:37 80m - / -18 DD8BA -7 / - 4 ✓ Closing fragment
10-16 20:29 80m - / - OK1UOZ +16 / - 2 ✓ Closing fragment
10-16 17:31 40m -12 / - ON3CCM - / -20 3 ✓ Closing fragment
10-14 06:14 40m -23 / - PC2J -21 / -6 3 ✓ Closing observed
10-14 06:08 40m - / +2 OH1LA -18 / - 2 Partial capture
10-14 06:07 40m - / -10 F6CAM -8 / - 10 Partial capture
10-14 06:02 40m - / -8 G0BLB -6 / - 2 ✓ Closing fragment
10-13 21:10 40m - / -13 UR6II -2 / - 2 ✓ Closing fragment
10-13 19:05 40m - / -9 R3LDK -6 / - 3 ✓ Closing fragment
10-13 19:03 40m - / - DH5BM -5 / - 2 Partial capture
10-13 19:01 40m - / -9 UB1CCL -10 / - 2 ✓ Closing fragment
10-13 18:48 40m - / -12 OE7LVI -9 / - 3 ✓ Closing fragment
10-13 18:40 40m - / - F4BJN -17 / - 2 Partial capture
10-13 18:38 40m - / -9 DJ0MAB -4 / - 5 ✓ Closing fragment
10-13 18:25 40m - / - DL9KM -4 / - 5 Partial capture
10-13 18:24 40m - / - DJ0MAB +2 / - 2 Partial capture
10-13 18:24 40m - / -7 OH3OJ +1 / - 2 ✓ Closing fragment
10-13 18:16 40m - / +1 IZ6BYS -14 / - 2 Partial capture
10-13 18:16 40m - / - M9XPN -6 / - 2 Partial capture
10-13 17:08 40m -15 / +7 OH3MB +3 / - 4 ✓ Closing observed
10-13 17:08 40m -17 / -12 R2ASY -3 / -1 4 ✓ Full exchange observed
10-13 16:21 40m -17 / -11 LZ2VQ -9 / -15 5 ✓ Full exchange observed
10-13 16:19 40m -16 / - SA3KAK - / -1 3 ✓ Closing fragment
10-13 16:19 40m -14 / -6 LA2GCA -12 / - 5 ✓ Closing observed
10-13 16:15 40m - / - DL3IAK -8 / - 5 Partial capture
10-13 16:15 40m -15 / - YO4LUP -7 / -10 3 ✓ Closing observed
10-13 16:15 40m - / - DJ0MAB -5 / - 2 Partial capture
10-13 16:09 40m - / - DL7JAF -20 / - 2 Partial capture
10-13 16:09 40m - / -6 OS4K -22 / - 3 ✓ Closing fragment
10-13 16:02 40m -14 / -8 HA7TM +10 / - 5 ✓ Closing observed
10-12 09:16 40m -12 / - SM5MEK - / -3 2 ✓ Closing fragment
10-12 09:11 40m -20 / -21 DM6JKC -10 / -4 5 ✓ Full exchange observed
10-12 09:05 40m -16 / -15 F6BEC -19 / -5 4 ✓ Full exchange observed
10-12 06:49 40m -22 / - OM6APJ -3 / +3 4 ✓ Full exchange observed
10-12 06:47 40m - / - DJ0MAB +6 / - 2 Partial capture
10-12 06:42 40m -16 / 0 UT4PA -3 / -3 7 ✓ Full exchange observed
10-12 06:40 40m - / - DJ0MAB +4 / - 5 Partial capture
10-12 06:39 40m -14 / - PD4RJ -13 / -16 3 ✓ Closing observed
10-12 06:39 40m -15 / -14 DL4ME -3 / -2 5 ✓ Full exchange observed
10-12 06:36 40m -18 / - G8KHF - / -7 2 ✓ Closing fragment
10-12 06:35 40m - / - DJ0MAB -1 / - 2 Partial capture
10-12 06:34 40m -18 / +1 DL6UCK -14 / -8 4 ✓ Full exchange observed
10-12 06:31 40m -12 / -11 PE1NPS -3 / -6 5 ✓ Full exchange observed
10-12 06:30 40m -11 / - DL4LUS - / -17 3 ✓ Closing fragment
10-12 06:27 40m - / - DJ0MAB +5 / - 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
070815 -13 1963  CQ SP4MAZ KO13
070830  -4 1963  SP4MAZ S56IAR -11
070830 -18 1862  SP4MAZ OK3MB JO70
070830  -1 2683  SP4MAZ DL7ARV JO62
070900  -4 1963  SP4MAZ S56IAR -11
070900 -22 1862  SP4MAZ OK3MB JO70
070900  +0 2683  SP4MAZ DL7ARV JO62 (x2)
070945 -16 1963  DK8HC SP4MAZ RR73
071000  -7 2683  SP4MAZ DL7ARV JO62 (x3)
071115 -15 1963  DL7ARV SP4MAZ -06
071130  -1 2683  SP4MAZ DL7ARV R-01 (x2)
80m
UTC    dB Audio  Message
202900 +17 1165  SP4MAZ OK1UOZ JO70 (x2)
203315 -16 1165  CQ SP4MAZ KO13 (x2)
203700  -8 1460  SP4MAZ DD8BA JO42 (x4)

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