SP5MJB — 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 SP5MJB, decoded by SO8OO in southeastern Poland. 54 FT8 messages attributed to this token as transmitter, on 160m, across 1 UTC dates in the available aggregate history. Last observed 2026-10-14.

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 SP5MJB as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (100%). In this small sample, the estimated median decoder S/N was -7 dB; no usual signal pattern is inferred.

Overview

54
Messages attributed
1
UTC dates decoded
3
Active 15-min windows
-7 dB
Estimated median S/N

Bands

First attributed message: 2026-10-14
Last attributed message: 2026-10-14 20:50 UTC

Observed FT8 message patterns

Attributed sample
54 messages
Active dates
1 UTC dates
Estimated median S/N
-7 dB
Estimated 10th-90th percentile
-15 to 0 dB
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 16, strong (≥ -8 dB) 33.

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 SP5MJB in decoded directed-looking exchanges:

Most frequent locator attributed to SP5MJB

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 · 35 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
290 km (approx.)
Last such locator decoded
2026-10-14 20:44 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 UTCBandSP5MJB S/NCounterpartCounterpart S/NMsgsCapture
10-14 20:44 160m -3 / -19 SP5EXA +18 / +2 17 Partial capture
10-14 20:42 160m -6 / - 9A2RD - / - 3 Partial capture
10-14 20:40 160m -1 / - SP5EXA - / - 3 Partial capture
10-14 20:38 160m -4 / - S52R - / - 4 Partial capture
10-14 20:35 160m -9 / - F1PBZ - / - 3 Partial capture
10-14 20:32 160m -8 / - DF7EF - / - 5 Partial capture
10-14 20:30 160m -7 / - S52R - / - 3 Partial capture
10-14 20:27 160m -8 / -18 SP3BPU +12 / +9 7 ✓ Full exchange observed
10-14 20:26 160m -12 / - DC0GL - / - 3 Partial capture
10-14 20:24 160m -12 / -13 UX0QT -8 / -11 7 ✓ Full exchange observed
10-14 20:22 160m -10 / - F1PBZ - / - 3 Partial capture
10-14 20:19 160m -12 / -17 OZ9GA -15 / -20 9 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

160m
UTC    dB Audio  Message
204500  +5  702  SP5EXA SP5MJB R+02
204515 +14 2406  SP5MJB SP5EXA -19
204530  +0  702  SP5EXA SP5MJB R+00
204545 +14 2406  SP5MJB SP5EXA -19
204600  -7  702  SP5EXA SP5MJB R+03
204615 +22 2406  SP5MJB SP5EXA -19
204630  -2  702  SP5EXA SP5MJB R+06
204645 +24 2406  SP5MJB SP5EXA -19
204700 -12  702  SP5EXA SP5MJB R+02 (x7)

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