SP3MZ — 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: JO82

Receiver-side FT8 activity involving SP3MZ, decoded by SO8OO in southeastern Poland. 942 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 27 UTC dates in the available aggregate history. Observed between 2026-06-15 and 2026-10-22.

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 942 FT8 messages attributed to SP3MZ as the transmitting token by decoded message structure across 27 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (67%), followed by 40 m (30%) and 20 m (2%). Most decodes (92%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (84%); the estimated median was +1.3 dB.

Overview

942
Messages attributed
27
UTC dates decoded
124
Active 15-min windows
+1.3 dB
Estimated median S/N

Bands

80m · 632 40m · 287 20m · 23
First attributed message: 2026-06-15
Last attributed message: 2026-10-22 21:52 UTC

Observed FT8 message patterns

Attributed sample
942 messages
Active dates
27 UTC dates
Estimated median S/N
+1.3 dB
Estimated 10th-90th percentile
-11.3 to +12 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 45, moderate (-15 to -9 dB) 103, strong (≥ -8 dB) 794.

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 SP3MZ 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 SP3MZ

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
JO82 · 535 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
439 km (approx.)
Last such locator decoded
2026-10-22 21:52 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 UTCBandSP3MZ S/NCounterpartCounterpart S/NMsgsCapture
10-22 21:48 80m +6 / - EA5RO - / - 10 Partial capture
10-22 21:29 80m +1 / +1 OH5XB -2 / +9 5 ✓ Full exchange observed
10-22 21:20 80m +3 / - SN0EG - / - 7 Partial capture
10-22 21:11 80m -2 / -4 SM7TZK -4 / +4 5 ✓ Full exchange observed
10-22 21:08 80m -6 / -10 DF3QT -3 / - 3 ✓ Closing observed
10-22 20:56 80m 0 / - DL9KM - / -15 11 Partial capture
10-22 20:52 80m - / - DL9KM -5 / - 5 Partial capture
10-22 20:51 80m 0 / +2 HB9EXN +4 / +6 3 ✓ Full exchange observed
10-22 20:48 80m +7 / +9 T77RN -10 / -19 5 ✓ Full exchange observed
10-22 20:35 80m - / +2 HG0NPJ -3 / - 2 ✓ Closing fragment
10-22 20:12 80m - / -4 DO5PY -5 / - 3 ✓ Closing fragment
10-22 20:10 80m -6 / - EI4JFB - / -21 3 ✓ Closing fragment
10-22 20:09 80m - / -15 R4HLO -22 / - 2 Partial capture
10-22 19:16 40m - / -7 IZ1HJU -14 / - 2 Partial capture
10-22 19:07 40m - / +4 G7OOD -5 / - 3 ✓ Closing fragment
10-11 09:39 10m - / -14 4X5MZ +4 / - 2 ✓ Closing fragment
10-06 18:33 40m - / - M0IQW -6 / - 3 Partial capture
10-06 18:32 40m - / +5 RD3BZ -7 / - 3 ✓ Closing fragment
10-06 17:32 40m - / +3 DJ9HX +9 / - 2 ✓ Closing fragment
10-06 17:27 40m - / -7 EA2CVV -9 / - 2 Partial capture
10-05 21:06 80m +6 / - EA4GOY - / +9 5 ✓ Closing fragment
10-05 21:02 80m +2 / - EI2KM - / - 7 Partial capture
10-05 20:57 80m 0 / - OE6/HB9DGR - / - 9 Partial capture
10-05 20:50 80m 0 / -13 F5RMK -4 / -6 5 ✓ Full exchange observed
10-05 20:45 80m 0 / - SQ5RJK +4 / - 6 ✓ Closing observed
10-05 20:44 80m +2 / -6 EU1EU -1 / -10 4 ✓ Full exchange observed
10-05 20:09 40m - / -9 F8ADF -2 / - 2 ✓ Closing fragment
10-05 20:02 40m - / +6 IK2HNG +3 / - 2 ✓ Closing fragment
10-05 19:51 40m - / -10 LA8ENA -10 / - 2 ✓ Closing fragment
10-05 19:41 40m - / - LZ2BC -14 / - 4 Partial capture
10-05 19:22 40m - / -8 IZ4EFV +2 / - 2 ✓ Closing fragment
09-25 20:00 80m +5 / +2 F8FUA -2 / -11 6 ✓ Full exchange observed
09-25 19:56 80m +2 / -12 F1PBZ -6 / - 4 ✓ Closing observed
09-25 19:53 80m -3 / - PC2J - / -8 3 ✓ Closing fragment
09-25 19:44 80m -1 / - OK9DMR -24 / -13 12 Partial capture
09-25 19:38 80m +3 / +5 ON5MX -8 / - 11 ✓ Closing observed
09-25 19:33 80m +4 / -1 DA6YY -3 / -3 4 ✓ Full exchange observed
09-25 19:25 80m -1 / - OD5XX - / - 11 Partial capture
09-25 19:17 80m +2 / - OD5XX - / - 4 Partial capture
09-25 19:14 80m -2 / - OD5XX - / - 2 Partial capture
09-25 19:10 80m +1 / - LB6LK - / - 7 Partial capture
09-25 18:28 80m +5 / +8 HA8RC +6 / - 3 ✓ Closing observed
09-25 18:21 80m +2 / -8 OT8P +6 / +6 4 ✓ Full exchange observed
09-25 18:20 80m - / 0 UA3SCU -12 / - 2 Partial capture
09-25 18:18 80m +3 / -12 LZ1EV -8 / -7 3 ✓ Full exchange observed
09-25 18:13 80m -3 / -3 HB3YOR -10 / -13 4 Partial capture
09-25 17:23 80m +2 / - OH3GBW - / -8 2 ✓ Closing fragment
09-25 17:16 80m +3 / - PA2PF - / -17 14 Partial capture
09-25 17:15 80m +3 / - SD5X +3 / -4 3 ✓ Closing observed
09-25 17:04 80m +4 / -3 YO2UKG +12 / +7 5 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
213015  -1 1346  OH5XB SP3MZ R+09
213030  -2 1842  SP3MZ OH5XB RR73
213045  +1 1346  OH5XB SP3MZ 73
213100  +5 1346  SP3MZ SN0EG JO73
214330  -3 1345  SP3MZ SM7TZK RR73
214815  +6 1345  EA5RO SP3MZ JO82 (x10)
40m 
UTC    dB Audio  Message
172700 -10 1124  SP3MZ EA2CVV IN91 (x2)
173200 +10  894  SP3MZ DJ9HX R+03 (x2)
183230  -9 2339  SP3MZ RD3BZ KO85 (x3)
183330  -5 1387  SP3MZ M0IQW IO91 (x3)
190700  -6 2786  SP3MZ G7OOD IO83 (x3)
191600 -14 1859  SP3MZ IZ1HJU R-07 (x2)
10m 
UTC    dB Audio  Message
092715  -1 2419  SP3MZ RM8L MO27 (x3)
093930  +5  642  SP3MZ 4X5MZ -14 (x2)
20m 
UTC    dB Audio  Message
111115  +0 1106  NX4RH SP3MZ JO82
111515  +2 1386  EA2EED SP3MZ JO82 (x2)
123215  +1 1105  CQ SP3MZ JO82 (x2)
123400  +2 1105  M1DBB SP3MZ JO82 (x3)
123530 -15 1578  SP3MZ M7JVT IO94 (x2)
202445 -16 1387  SP3MZ R7OV 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.

CW

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

Explore CW reception at SO8OO

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