PD4HT — 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: JO23

Receiver-side FT8 activity involving PD4HT, decoded by SO8OO in southeastern Poland. 1,962 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 110 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 1,962 FT8 messages attributed to PD4HT as the transmitting token by decoded message structure across 110 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (54%), followed by 20 m (36%) and 10 m (11%). Most decodes (70%) fell within the six-hour window 12:00-18:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12.9 dB.

Overview

1,962
Messages attributed
110
UTC dates decoded
444
Active 15-min windows
-12.9 dB
Estimated median S/N

Bands

40m · 1,053 20m · 701 10m · 208
First attributed message: 2026-06-06
Last attributed message: 2026-10-23 10:21 UTC

Observed FT8 message patterns

Attributed sample
1,962 messages
Active dates
110 UTC dates
Estimated median S/N
-12.9 dB
Estimated 10th-90th percentile
-21 to -2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 662, moderate (-15 to -9 dB) 763, strong (≥ -8 dB) 537.

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 PD4HT 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 PD4HT

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
JO23 · 973 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,219 km (approx.)
Last such locator decoded
2026-10-23 09:36 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 UTCBandPD4HT S/NCounterpartCounterpart S/NMsgsCapture
10-23 09:38 40m - / -25 IZ4AIF -5 / - 3 ✓ Closing fragment
10-23 09:36 40m -16 / -3 G1UZL -19 / - 2 Partial capture
10-23 09:31 40m - / 0 DG9SEH -18 / - 3 ✓ Closing fragment
10-23 09:25 40m - / -3 DH3GAR -20 / - 2 ✓ Closing fragment
10-23 09:18 40m -16 / - G8IXM - / - 2 Partial capture
10-23 09:05 40m -19 / +2 PA7ZZ -14 / - 5 ✓ Closing observed
10-23 08:59 40m -9 / - M7FHO - / -3 3 ✓ Closing fragment
10-22 16:39 40m +4 / - G0HSP - / - 2 ✓ Closing fragment
10-22 16:35 40m 0 / - ON6WDL - / - 4 Partial capture
10-22 16:05 40m -4 / - SP8WB - / -5 3 ✓ Closing fragment
10-22 16:03 40m -7 / -9 YO2UKG +4 / -16 5 ✓ Full exchange observed
10-22 15:59 40m -10 / - MI0TBE - / -14 2 ✓ Closing fragment
10-22 15:57 40m -9 / -15 R6DVV -11 / -9 6 ✓ Full exchange observed
10-22 15:55 40m -3 / - M9NTS -8 / -7 4 ✓ Full exchange observed
10-22 12:34 10m -19 / - EA8CA - / - 2 Partial capture
10-22 08:47 40m - / - YL3ASK -20 / - 2 Partial capture
10-22 08:44 40m - / -9 IK2PZX -16 / - 2 ✓ Closing fragment
10-22 08:34 40m - / -7 SP9MOC -6 / - 2 ✓ Closing fragment
10-21 15:00 40m -12 / 0 PH3T -10 / -5 3 Partial capture
10-21 14:58 40m -14 / - RX9WM -15 / -9 5 ✓ Closing observed
10-21 10:13 40m - / -18 IK4LZH -6 / - 2 ✓ Closing fragment
10-21 09:38 40m - / -11 LX1RFJ -21 / - 2 ✓ Closing fragment
10-21 09:36 40m - / - PB0ACU -16 / - 2 ✓ Closing fragment
10-21 09:32 40m -22 / - GJ0KYZ - / -14 2 ✓ Closing fragment
10-21 09:08 40m -15 / - PC1K - / - 3 Partial capture
10-20 17:37 40m -5 / -14 PD3JB -10 / -16 5 ✓ Full exchange observed
10-20 17:35 40m -12 / - MM7FTH -23 / -16 5 ✓ Closing observed
10-20 17:32 40m -12 / -10 YO3GJE -16 / -15 11 ✓ Full exchange observed
10-20 17:30 40m -12 / - IQ4JO - / - 2 Partial capture
10-20 17:25 40m - / -10 PD5BT -10 / - 2 ✓ Closing fragment
10-20 17:23 40m - / - R3TS -6 / - 2 Partial capture
10-20 17:18 40m -11 / - ON4CFC -9 / -22 3 ✓ Closing observed
10-20 17:15 40m +2 / - G8KHF -3 / -6 5 ✓ Closing observed
10-20 17:07 40m +2 / -4 G4DZE -9 / -12 4 ✓ Full exchange observed
10-20 16:37 40m -5 / - 2W0YOX - / -14 2 Partial capture
10-20 16:35 40m +1 / - UT3UEH - / - 2 Partial capture
10-20 16:31 40m -1 / - RA8AF - / -12 4 ✓ Closing fragment
10-20 16:24 40m -8 / - M0IAP - / -12 4 ✓ Closing fragment
10-20 16:20 40m -10 / - SQ9BDB - / -21 3 Partial capture
10-20 16:14 40m -13 / -10 LX1RFJ -10 / -7 4 Partial capture
10-20 15:50 40m - / -16 DL1VED -18 / - 6 Partial capture
10-20 15:47 40m 0 / - M9DNC - / -8 3 ✓ Closing fragment
10-19 13:03 40m -12 / - LA7HJA - / - 4 Partial capture
10-16 16:52 40m -8 / -15 RU4SO -11 / -1 2 Partial capture
10-16 16:50 40m - / +10 F5BWS -3 / - 2 ✓ Closing fragment
10-16 14:14 40m -16 / +4 DL1TRK -14 / - 3 ✓ Closing observed
10-16 13:40 10m - / -10 N4EXA -16 / - 2 ✓ Closing fragment
10-16 11:53 10m -3 / - G4CFS - / - 4 Partial capture
10-15 11:13 40m - / -1 DB2VS -19 / - 2 ✓ Closing fragment
10-14 09:07 40m - / -23 US1MM -13 / - 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
092000 -16  952  G8IXM PD4HT JO23
092515 -24 1314  PD4HT DH3GAR -03 (x2)
093030 -19 2223  PD4HT PA4WIM RR73
093100 -22 1802  PD4HT DG9SEH JN48 (x3)
093500 -18 1115  ON6OM PD4HT JO23
093600 -16 1240  G1UZL PD4HT JO23
093615 -19 1240  PD4HT G1UZL -03
093800  -3 1294  PD4HT IZ4AIF -25 (x3)
093945 -20 1114  PD4HT ON6OM +00
102145  -7  582  MM3AUB PD4HT 73
10m 
UTC    dB Audio  Message
134215 -24 1938  PD4HT EA3HKA RR73
134845 -20 1839  PD4HT EB3JT 73
082900 -13 2283  PD4HT HB9ACA +04 (x2)
083645 -22 1641  PD4HT IN3IZQ -14 (x2)
115330  -3 2904  G4CFS PD4HT JO23 (x4)
134000 -14 2379  PD4HT N4EXA -10 (x2)
123345 -21 2034  CR7BPL PD4HT JO23
123445 -22 2034  EA8CA PD4HT JO23 (x2)
20m 
UTC    dB Audio  Message
084500 -13 1891  3A2MW PD4HT 73
084715  -3 1819  HB9EXE PD4HT R-12
084815  -8 1925  CN8NS PD4HT JO23 (x3)
085230  -4 2356  PD4HT F1THK -10 (x2)
085545 -12 1657  DB2VS PD4HT JO23
085600 -14 1658  PD4HT DB2VS +01
085615 -15 1657  DB2VS PD4HT JO23
085630 -15 1658  PD4HT DB2VS +01 (x2)
090300 +11  606  SQ5WBW PD4HT JO23 (x3)

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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