SP5MTX — 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: KO02

Receiver-side FT8 activity involving SP5MTX, decoded by SO8OO in southeastern Poland. 18 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-21.

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 18 FT8 messages attributed to SP5MTX as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (39%), followed by 40 m (33%) and 60 m (28%). In this small sample, the estimated median decoder S/N was -2 dB; no usual signal pattern is inferred.

Overview

18
Messages attributed
4
UTC dates decoded
6
Active 15-min windows
-2 dB
Estimated median S/N

Bands

80m · 7 60m · 5 40m · 6
First attributed message: 2026-06-08
Last attributed message: 2026-09-21 06:18 UTC

Observed FT8 message patterns

Attributed sample
18 messages
Active dates
4 UTC dates
Estimated median S/N
-2 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 1, strong (≥ -8 dB) 16.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with SP5MTX 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 SP5MTX

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
KO02 · 12 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
290 km (approx.)
Last such locator decoded
2026-09-21 06:18 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 UTCBandSP5MTX S/NCounterpartCounterpart S/NMsgsCapture
09-21 06:17 40m +5 / - TI4LAS - / - 3 Partial capture
09-11 04:00 80m +6 / +10 HF100PKP +2 / -9 3 Partial capture
09-11 03:57 80m -6 / -9 SN100PKP -9 / -12 2 Partial capture
09-11 03:17 40m - / -23 EK1KE -14 / - 4 ✓ Closing fragment
09-11 03:14 40m - / -10 J38DX -5 / - 2 ✓ Closing fragment
09-11 02:43 40m - / +1 SV5AZK -8 / - 2 ✓ Closing fragment
09-11 02:41 40m - / -13 UB4CJS -10 / - 3 ✓ Closing fragment
08-31 22:25 40m - / -13 PW8BR -14 / - 3 ✓ Closing fragment
08-31 21:49 60m -4 / - LY7Z - / - 2 Partial capture
08-31 21:47 60m -4 / +4 ER1CW -10 / -1 5 ✓ Full exchange observed
08-31 21:39 80m +5 / -10 CT7AIU -15 / - 4 Partial capture
08-31 21:36 80m - / - EA5HM -7 / - 4 Partial capture
08-31 21:35 80m +10 / - SV9QWC - / - 2 ✓ Closing fragment
08-24 21:21 20m - / -11 HK3C +8 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
222645 -12  730  SP5MTX PW8BR RR73
024130  -8 2142  SP5MTX UB4CJS -13 (x3)
024345  -4 1427  SP5MTX SV5AZK +01 (x2)
031400  -4 2835  SP5MTX J38DX -10 (x2)
031700 -13 1498  SP5MTX EK1KE -23 (x4)
061745  +3 1553  TI4LAS SP5MTX KO02 (x3)
80m 
UTC    dB Audio  Message
213630 +11 1504  SV9QWC SP5MTX 73
213645  -8 1806  SP5MTX EA5HM IM99 (x4)
213915  +2  908  CT7AIU SP5MTX KO02
213930 -17  908  SP5MTX CT7AIU -10
213945  +8  908  CT7AIU SP5MTX KO02
214000 -13  908  SP5MTX CT7AIU -07
035745  -9 1746  SP5MTX SN100PKP -09
035800  -6 1746  SN100PKP SP5MTX R-12
040045  +4 1614  HF100PKP SP5MTX KO02
040100  +2 1614  SP5MTX HF100PKP +10
040115  +7 1614  HF100PKP SP5MTX R-09
040200 -18 2578  SP5MTX R2EA -14
60m 
UTC    dB Audio  Message
214745  -4 1694  ER1CW SP5MTX KO02
214800 -10 1694  SP5MTX ER1CW +04
214815  -2 1694  ER1CW SP5MTX R-01
214830  -9 1694  SP5MTX ER1CW RR73
214845  -5 1695  ER1CW SP5MTX 73
214945  -3 1766  LY7Z SP5MTX KO02 (x2)
20m 
UTC    dB Audio  Message
212100  +6  875  SP5MTX HK3C -11 (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.

CW

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

Explore CW reception at SO8OO

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