PU1FAP — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Brazil Most frequent locator attributed to this token: GG99

Receiver-side FT8 activity involving PU1FAP, decoded by SO8OO in southeastern Poland. 26 FT8 messages attributed to this token as transmitter, on 10m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-07-23.

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 26 FT8 messages attributed to PU1FAP as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (100%). Several six-hour UTC windows tied for the largest share (77%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (92%); the estimated median was -22 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-22 dB

Estimated median S/N

Bands

10m · 26

First attributed message: 2026-06-07
Last attributed message: 2026-07-23 20:18 UTC

Observed FT8 message patterns

Attributed sample: 26 messages
Active dates: 4 UTC dates
Estimated median S/N: -22 dB
Estimated 10th-90th percentile: -24 to -18 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 24, moderate (-15 to -9 dB) 2, 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 PU1FAP in decoded directed-looking exchanges:

LY7T · Lithuania R7RDE · European Russia UA1AIR · European Russia

Most frequent locator attributed to PU1FAP

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: GG99 · 24 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 9,959 km (approx.)
Last such locator decoded: 2026-07-23 20:18 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	PU1FAP S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-10 18:56	10m	- / -	CT3MD	-4 / -	4	Partial capture
07-29 17:44	10m	- / -	IK4LZH	-1 / -	4	Partial capture
07-29 17:36	10m	- / -	IK4LZH	-2 / -	4	Partial capture
07-29 17:31	10m	- / -	IU2VBP	-15 / -	4	Partial capture
07-02 11:25	10m	- / -	A71XX	-16 / -	2	Partial capture
06-26 20:13	10m	- / -8	LY7T	-22 / -	2	✓ Closing fragment
06-26 19:37	10m	- / -	R3ZMM	-3 / -	2	Partial capture
06-26 15:44	10m	- / -	S59V	-12 / -	2	Partial capture
06-25 19:48	10m	- / -	RD3AW	+2 / -	3	Partial capture
06-25 19:17	10m	- / -	IK4LZH	-16 / -	4	Partial capture
06-25 19:15	10m	- / -	DL2RBJ	-10 / -	4	Partial capture
06-24 20:00	10m	- / -	RT6Z	+10 / -	2	Partial capture
06-24 19:37	10m	- / -13	IR2RAOR	-9 / -	2	Partial capture
06-24 19:29	10m	- / -7	UA1AIR	-16 / -	2	✓ Closing fragment
06-24 18:57	10m	- / -	RA6AR	-18 / -	2	Partial capture
06-24 18:53	10m	- / -	RA6AR	-16 / -	2	Partial capture
06-23 18:05	10m	- / -12	R7RDE	-13 / -	4	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
173215 -18 1421  PU1FAP IU2VBP JN45 (x2)
173615  -7  489  PU1FAP IK4LZH JN54 (x9)
185615  -3  968  PU1FAP CT3MD IM13 (x4)

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