PD4MB — 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: Netherlands Most frequent locator attributed to this token: JO21

Receiver-side FT8 activity involving PD4MB, decoded by SO8OO in southeastern Poland. 83 FT8 messages attributed to this token as transmitter, on 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-10-26 and 2026-10-28.

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 83 FT8 messages attributed to PD4MB as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was -5 dB; no usual signal pattern is inferred.

Overview

83
Messages attributed
2
UTC dates decoded
9
Active 15-min windows
-5 dB
Estimated median S/N

Bands

40m · 83
First attributed message: 2026-10-26
Last attributed message: 2026-10-28 18:26 UTC

Observed FT8 message patterns

Attributed sample
83 messages
Active dates
2 UTC dates
Estimated median S/N
-5 dB
Estimated 10th-90th percentile
-14 to +2 dB
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 21, strong (≥ -8 dB) 59.

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 PD4MB in decoded directed-looking exchanges:

Most frequent locator attributed to PD4MB

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
JO21 · 46 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,192 km (approx.)
Last such locator decoded
2026-10-28 18:25 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 UTCBandPD4MB S/NCounterpartCounterpart S/NMsgsCapture
10-28 18:23 40m -6 / -19 IZ5IIN 0 / 0 7 ✓ Full exchange observed
10-28 18:20 40m -10 / - LB8TG - / - 2 ✓ Closing fragment
10-28 18:12 40m -12 / - HG5OGI - / -7 3 ✓ Closing fragment
10-28 18:08 40m -7 / - EA5D - / -5 2 Partial capture
10-28 16:47 40m 0 / - IK2MXM - / - 2 Partial capture
10-28 16:43 40m -2 / - DL9KM - / - 2 ✓ Closing fragment
10-28 16:41 40m -1 / - SP6AMI - / -6 2 ✓ Closing fragment
10-28 16:39 40m -2 / - OK2FKU - / - 2 ✓ Closing fragment
10-28 16:33 40m +2 / - UN0GY - / - 4 Partial capture
10-28 16:29 40m -8 / -4 DC1SN -4 / +2 7 ✓ Full exchange observed
10-28 16:25 40m -3 / - M7OHL - / -10 2 Partial capture
10-28 16:24 40m -6 / -8 F5IXN -21 / -4 3 ✓ Full exchange observed
10-28 16:21 40m -2 / - M8PGT - / -14 3 Partial capture
10-28 16:19 40m +2 / 0 IW3IEH -2 / -3 5 ✓ Full exchange observed
10-28 16:18 40m -2 / - F4HSB - / -8 2 ✓ Closing fragment
10-28 16:16 40m -7 / - F4MRJ/P - / -10 2 ✓ Closing fragment
10-28 16:14 40m -3 / -8 R3DHP -17 / -1 5 ✓ Full exchange observed
10-28 16:11 40m -7 / - OE6HTG - / - 3 Partial capture
10-28 16:08 40m -12 / - IU2OMU - / +1 2 ✓ Closing fragment
10-28 16:05 40m -4 / -3 M7LBT -8 / +5 5 ✓ Full exchange observed
10-28 16:04 40m -9 / - G8KHF - / - 3 Partial capture
10-26 16:08 40m -14 / -8 SH1ZLA -6 / - 3 ✓ Closing observed
10-26 16:04 40m -18 / - EX7CQ - / - 2 Partial capture
10-26 15:57 40m -14 / - M0TTT - / - 2 ✓ Closing fragment
10-26 15:53 40m - / -11 IQ4JO -8 / - 3 ✓ Closing fragment
10-26 15:53 40m -15 / - OH3MB -3 / -5 2 Partial capture
10-26 15:39 40m - / +1 ON6OM -4 / - 2 ✓ Closing fragment
10-26 15:35 40m -18 / -17 9A5E +4 / - 3 ✓ Closing observed
10-26 15:33 40m - / -9 9A3MRN +2 / - 2 ✓ Closing fragment
10-26 15:30 40m - / -4 F5MMP -8 / - 4 ✓ Closing fragment
10-26 15:24 40m - / - SP2KW -5 / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
181315 -11  948  HG5OGI PD4MB R-07 (x2)
181415 -11  948  CQ PD4MB JO21 (x2)
181900  -5  947  PD4MB RY7G 73
182015 -10  948  LB8TG PD4MB JO21 (x2)
182230  -8 1976  PD4MB RU4SO RR73
182345  -7  948  IZ5IIN PD4MB JO21 (x3)
182530  +2 2648  PD4MB IZ5IIN -19
182545  -6  947  IZ5IIN PD4MB R+00
182600  -1 2648  PD4MB IZ5IIN RR73
182615  -4  948  IZ5IIN PD4MB 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

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee