PY4PDO — 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: Brazil Most frequent locator attributed to this token: GG78

Receiver-side FT8 activity involving PY4PDO, decoded by SO8OO in southeastern Poland. 40 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-08-23.

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 40 FT8 messages attributed to PY4PDO as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (53%), followed by 10 m (48%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-16 dB

Estimated median S/N

Bands

20m · 21 10m · 19

First attributed message: 2026-06-08
Last attributed message: 2026-08-23 21:03 UTC

Observed FT8 message patterns

Attributed sample: 40 messages
Active dates: 3 UTC dates
Estimated median S/N: -16 dB
Estimated 10th-90th percentile: -21 to -12 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 20, moderate (-15 to -9 dB) 20, strong (≥ -8 dB) 0.

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 PY4PDO in decoded directed-looking exchanges:

CR7BUW · Portugal Z34K · North Macedonia BA4II · China BA4VDC · China BH5HIE · China EA7HHK · Spain F4JZW · France LU3DLY · Argentina OE6TNO · Austria PD5N · Netherlands SV1FJR · Greece

Most frequent locator attributed to PY4PDO

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: GG78 · 18 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 10,291 km (approx.)
Last such locator decoded: 2026-08-23 21:03 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 UTC	Band	PY4PDO S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-21 13:50	10m	- / -2	CR7BUW	-20 / -	3	✓ Closing fragment
10-21 13:49	10m	- / -	EA7Z	-12 / -	2	Partial capture
09-24 14:15	10m	- / -18	Z34K	-1 / -	5	✓ Closing fragment
08-30 19:08	20m	- / -	F4JZW	-7 / -	2	✓ Closing fragment
08-23 21:04	20m	- / -	SP2VTN	0 / -	2	Partial capture
08-23 21:04	20m	- / -	G7UFW	-7 / -	7	Partial capture
08-23 20:18	20m	-18 / -	PD5N	- / -14	2	✓ Closing fragment
08-23 20:14	20m	-14 / -	BA4VDC	- / -15	2	✓ Closing fragment
08-23 20:05	20m	-11 / -12	OE6TNO	-5 / -	7	✓ Closing observed
08-23 20:02	20m	-14 / -	BH5HIE	- / -20	2	✓ Closing fragment
08-23 20:01	20m	-14 / -	SV1FJR	- / -12	2	✓ Closing fragment
08-23 19:31	20m	- / -	F4VTR	+7 / -	2	Partial capture
08-23 19:16	20m	- / -	EA7HHK	-8 / -	3	✓ Closing fragment
08-09 20:27	20m	- / -11	LU3DLY	-16 / -	3	✓ Closing fragment
07-30 19:29	20m	- / -	F5SOI	-7 / -	6	Partial capture

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
141545  -1 2443  PY4PDO Z34K KN01 (x5)
134900 -15 2285  PY4PDO EA7Z IM67
134900 -23 1457  PY4PDO EA7Y IM66
134930  -9 2285  PY4PDO EA7Z IM67
135000 -22 1592  PY4PDO CR7BUW IM58 (x3)

20m

UTC    dB Audio  Message
202000 -21 1462  CQ PY4PDO GG78 (x4)
210400  -5 1234  PY4PDO G7UFW IO92
210430  +1 2304  PY4PDO SP2VTN JO94
210430  -5 1234  PY4PDO G7UFW IO92
210500  +0 2304  PY4PDO SP2VTN JO94
210500  +5 1234  PY4PDO G7UFW IO92 (x5)
190830  -7  965  PY4PDO F4JZW JN08 (x2)

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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