PD4WAC — 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: JO22

Receiver-side FT8 activity involving PD4WAC, decoded by SO8OO in southeastern Poland. 3,407 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 62 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-23.

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 3,407 FT8 messages attributed to PD4WAC as the transmitting token by decoded message structure across 62 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (71%), followed by 10 m (21%) and 40 m (8%). Most decodes (60%) fell within the six-hour window 14:00-20:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

3,407
Messages attributed
62
UTC dates decoded
481
Active 15-min windows
-8 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-10-23 17:17 UTC

Observed FT8 message patterns

Attributed sample
3,407 messages
Active dates
62 UTC dates
Estimated median S/N
-8 dB
Estimated 10th-90th percentile
-18.9 to +5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 611, moderate (-15 to -9 dB) 1,000, strong (≥ -8 dB) 1,796.

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 PD4WAC

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
JO22 · 2,533 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,201 km (approx.)
Last such locator decoded
2026-10-23 17:11 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 UTCBandPD4WAC S/NCounterpartCounterpart S/NMsgsCapture
10-23 17:19 40m - / - R2AL +2 / - 2 Partial capture
10-23 17:19 40m - / - UB6OCP -3 / - 3 Partial capture
10-23 17:17 40m -11 / - PC2F -16 / -10 2 ✓ Closing observed
10-23 17:16 40m - / - LY2BUU -1 / - 3 Partial capture
10-23 17:16 40m - / - DL/N0PNG -14 / - 3 Partial capture
10-23 17:16 40m - / - R3SN -12 / - 2 Partial capture
10-23 17:14 40m - / - R6OY -1 / - 4 Partial capture
10-23 17:12 40m - / - RM1B -8 / - 2 Partial capture
10-23 17:06 40m -1 / - YD1EQN - / - 4 Partial capture
10-21 11:27 10m - / -13 7Z1BQ -16 / - 3 ✓ Closing fragment
10-18 13:19 10m -6 / - N5CDL - / -16 2 ✓ Closing fragment
10-18 13:15 10m -7 / - N4RLW - / -21 7 ✓ Closing fragment
10-18 13:13 10m -6 / - N3UO - / -16 2 ✓ Closing fragment
10-18 13:07 10m -6 / - ZS4JAN - / -18 4 ✓ Closing fragment
10-18 13:06 10m -8 / - YC1SEO - / - 3 Partial capture
10-18 12:55 10m -9 / - YY4GPM - / -20 7 ✓ Closing fragment
10-17 14:08 10m -10 / - K5HPT - / - 3 Partial capture
10-17 14:03 10m -9 / - ZS1SI - / - 4 Partial capture
10-17 14:00 10m -7 / - LU5EW - / -10 3 Partial capture
10-17 13:58 10m -10 / - KQ4RLN - / - 2 ✓ Closing fragment
10-17 13:52 10m -10 / - CE2SV - / -6 3 ✓ Closing fragment
10-17 13:51 10m -10 / - KC3WOX - / -15 2 ✓ Closing fragment
10-17 13:42 10m -6 / - KC3WOX - / -19 2 ✓ Closing fragment
10-17 13:38 10m -5 / - K5MV - / -17 4 ✓ Closing fragment
10-17 13:32 10m -8 / - K5MV - / - 6 Partial capture
10-17 13:30 10m -9 / - WB5TUF - / -11 4 ✓ Closing fragment
10-17 13:27 10m -7 / - V31CQ - / - 4 Partial capture
10-17 13:20 10m -10 / - V31CQ - / - 3 Partial capture
10-16 12:23 10m -20 / - OD5SB - / - 2 Partial capture
10-16 12:15 10m -6 / - N4PSK - / -19 2 Partial capture
10-11 06:14 40m -6 / - OH5KNL - / -17 6 ✓ Closing fragment
10-11 05:42 40m -12 / - PV8AJ - / - 8 Partial capture
10-11 05:36 40m -14 / - PV8AJ - / - 4 Partial capture
10-11 05:30 40m -18 / - PV8AJ - / - 6 Partial capture
10-11 05:15 40m - / - UC6D 0 / - 2 Partial capture
10-09 20:11 40m +4 / - TF8KW - / - 5 Partial capture
10-09 19:40 40m +6 / -13 4X4FD -9 / -1 22 Partial capture
10-09 19:25 40m -2 / - 8Z1IT - / -7 6 Partial capture
10-09 19:16 40m -4 / - VJ6X - / -4 11 ✓ Closing fragment
10-09 18:59 40m -2 / - HS0ZOY - / -4 10 Partial capture
10-09 18:57 40m -6 / - LB5UK - / -3 2 ✓ Closing fragment
10-09 18:55 40m -10 / - LB8TG - / +3 2 ✓ Closing fragment
10-09 18:48 40m -4 / - 9H4JX - / - 5 Partial capture
10-09 18:38 40m -1 / - OZ2LP -10 / - 7 ✓ Closing observed
10-09 18:38 40m - / - 9A7BB -1 / - 5 Partial capture
10-09 18:38 40m - / - LZ2SJ -2 / - 3 Partial capture
10-09 18:36 40m - / - F6FHZ -8 / - 4 Partial capture
10-09 18:26 40m +3 / - VU3OSA - / - 15 Partial capture
10-09 18:21 40m -2 / - OH3SW - / +3 3 ✓ Closing fragment
10-09 18:19 40m -7 / -15 EX7CQ -11 / +5 4 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
171600 -14 1579  PD4WAC R3SN KO94
171600 -14 2026  <PD4WAC> DL/N0PNG
171630  +0 1738  PD4WAC LY2BUU KO25
171630 -15 2025  <PD4WAC> DL/N0PNG
171700  +0 1738  PD4WAC LY2BUU KO25
171730  -9 1579  PD4WAC R3SN KO94
171730  -3 1738  PD4WAC LY2BUU KO25
171745 -11 1739  PC2F PD4WAC -10
171800 -13 2025  PD4WAC DL/N0PNG
171830 -16 1739  PD4WAC PC2F 73
171900  -4 2241  PD4WAC UB6OCP KN88 (x2)
171930  +1 1451  PD4WAC R2AL KO85
172000  -6 2241  PD4WAC UB6OCP KN88
172000  +2 1451  PD4WAC R2AL KO85
10m
UTC    dB Audio  Message
131545  -5 2648  N4RLW PD4WAC -21 (x7)
131915  -5 2648  CQ PD4WAC JO22
131945  -6 2648  N5CDL PD4WAC -16 (x2)
133045 -13 2648  CQ PD4WAC JO22                        a1 (x2)
112715 -15 1129  PD4WAC 7Z1BQ -13 (x3)
20m
UTC    dB Audio  Message
173345  -9 1301  7Q5A PD4WAC JO22 (x3)
173615  +3 2416  FR5FK PD4WAC JO22
174715  -9 2527  E24WBO PD4WAC JO22 (x5)
191800  -7 2853  PD4WAC 7Z1MM +03
142515  -2 2409  BG2ATH PD4WAC JO22 (x5)

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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