PD4TK — 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 PD4TK, decoded by SO8OO in southeastern Poland. 37 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-08-20 and 2026-10-21.

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 37 FT8 messages attributed to PD4TK as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (51%), followed by 20 m (49%). Several six-hour UTC windows tied for the largest share (57%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -17 dB.

Overview

37
Messages attributed
5
UTC dates decoded
11
Active 15-min windows
-17 dB
Estimated median S/N

Bands

40m · 19 20m · 18
First attributed message: 2026-08-20
Last attributed message: 2026-10-21 06:22 UTC

Observed FT8 message patterns

Attributed sample
37 messages
Active dates
5 UTC dates
Estimated median S/N
-17 dB
Estimated 10th-90th percentile
-23 to -4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 20, moderate (-15 to -9 dB) 11, strong (≥ -8 dB) 6.

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 PD4TK 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 PD4TK

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 · 32 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,201 km (approx.)
Last such locator decoded
2026-10-21 06:22 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 UTCBandPD4TK S/NCounterpartCounterpart S/NMsgsCapture
10-21 13:47 40m - / -18 IK4FMT -4 / - 2 ✓ Closing fragment
10-21 13:15 40m - / -20 OM2IB +1 / - 2 ✓ Closing fragment
10-21 12:45 40m - / -20 IQ4JHE -12 / - 2 ✓ Closing fragment
10-21 12:42 40m - / -16 OM2IB -2 / - 3 Partial capture
10-21 10:44 40m - / -13 OK2CNI -8 / - 3 ✓ Closing fragment
10-21 10:39 40m - / -18 SP8LBH -9 / - 4 Partial capture
10-21 09:13 40m - / -14 F5TGY -20 / - 2 ✓ Closing fragment
10-21 06:22 40m -24 / - OA4ENG - / - 2 Partial capture
10-21 06:15 40m -20 / - YV6BXN - / - 2 Partial capture
10-21 06:09 40m -20 / - YV6BXN - / - 2 Partial capture
10-21 05:39 40m -18 / -21 R3GO -4 / - 4 ✓ Closing observed
10-21 05:35 40m -13 / -22 R3GO -10 / - 3 Partial capture
09-28 11:04 40m - / -18 SP9MQS +6 / - 2 ✓ Closing fragment
09-28 10:13 40m - / -9 DL0DM -4 / - 2 ✓ Closing fragment
09-28 08:58 40m - / -19 IQ2AAH -15 / - 2 ✓ Closing fragment
09-28 08:43 40m - / +5 ON4AEO -12 / - 2 ✓ Closing fragment
09-28 08:30 40m - / -17 DK1HSI -16 / - 2 Partial capture
09-21 14:01 40m - / -9 DL1IG -1 / - 2 ✓ Closing fragment
09-21 13:39 40m - / -7 HB9ELE +2 / - 2 ✓ Closing fragment
09-21 13:35 40m - / -21 IK2TLA -7 / - 4 ✓ Closing fragment
09-21 06:33 40m - / -12 F5MOO +3 / - 3 ✓ Closing fragment
09-17 07:02 40m - / -20 DL6EL +3 / - 4 ✓ Closing fragment
09-07 14:48 40m - / -5 DB3OI -2 / - 2 ✓ Closing fragment
09-07 14:42 40m - / -25 OE1AVO +1 / - 4 ✓ Closing fragment
09-07 14:17 40m - / -9 SM7HWD -18 / - 2 ✓ Closing fragment
09-07 13:30 40m - / -17 SN100PKP -11 / - 2 Partial capture
09-07 13:22 40m - / -18 SP5MIG -9 / - 2 Partial capture
09-07 12:56 40m - / -5 DF6I -20 / - 2 ✓ Closing fragment
09-07 12:12 40m - / -20 SQ9CXH +2 / - 2 ✓ Closing fragment
08-31 13:04 40m - / -14 DH3CW -7 / - 2 ✓ Closing fragment
08-31 08:32 40m - / -15 OK4RQ -4 / - 2 ✓ Closing fragment
08-31 07:41 40m - / -11 DJ2CR -14 / - 2 ✓ Closing fragment
08-31 07:37 40m - / -9 DF0AWG -12 / - 2 ✓ Closing fragment
08-31 07:36 40m - / -6 DM1MT -4 / - 2 Partial capture
08-30 19:15 20m -16 / - EN35UKR - / - 5 Partial capture
08-30 19:10 20m -14 / - Z31PM - / -17 3 ✓ Closing fragment
08-30 19:09 20m -4 / - RA3FD - / - 2 Partial capture
08-30 19:04 20m -6 / - IU3MAG - / - 3 Partial capture
08-30 18:58 20m - / -11 EA7R +16 / - 2 ✓ Closing fragment
08-30 13:17 40m - / -21 OE4MTI -9 / - 2 Partial capture
08-30 12:10 40m - / +7 DA0RR -16 / - 2 ✓ Closing fragment
08-30 11:39 40m - / -12 SP6TO +3 / - 2 ✓ Closing fragment
08-30 11:32 40m - / -9 DK2M +8 / - 2 ✓ Closing fragment
08-30 11:26 20m -16 / - IR7MGGC - / - 2 Partial capture
08-30 11:22 20m -11 / - EA4IVO -19 / -16 2 ✓ Closing observed
08-27 12:00 40m - / - OK8CZ -20 / - 2 ✓ Closing fragment
08-27 11:19 40m - / -4 OK5AG/P -1 / - 3 ✓ Closing fragment
08-27 11:18 40m - / -13 SP5IDR -4 / - 2 ✓ Closing fragment
08-27 11:09 40m - / -6 DB1BW -20 / - 8 ✓ Closing fragment
08-27 10:21 40m - / -18 S57TW +2 / - 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
104515  -9 1948  PD4TK OK2CNI R-13 (x2)
124215  -2 1683  PD4TK OM2IB -16 (x3)
124530 -11 1138  PD4TK IQ4JHE -20 (x2)
131545  -3 1683  PD4TK OM2IB -20 (x2)
132830  -8 1140  PD4TK 9A2DM -19
134700  -7  861  PD4TK IK4FMT -18 (x2)
135715 -13 2382  PD4TK DF3ED -06
140815 -18 2235  PD4TK PA2DX -20
144030 -21 2032  PD4TK PH3T -05
20m 
UTC    dB Audio  Message
185900 +16 2921  PD4TK EA7R RR73
190445  -3 2539  IU3MAG PD4TK JO22 (x3)
190645  -4 2973  RA3FD PD4TK JO22 (x3)
191015 -10 1880  Z31PM PD4TK JO22 (x3)
191515 -14 1468  EN35UKR PD4TK 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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