PA0BTR — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Netherlands Most frequent locator attributed to this token: JO22

Receiver-side FT8 activity involving PA0BTR, decoded by SO8OO in southeastern Poland. 48 FT8 messages attributed to this token as transmitter, on 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-08-30.

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 48 FT8 messages attributed to PA0BTR as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (67%); the estimated median was -4 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-4 dB

Estimated median S/N

Bands

20m · 48

First attributed message: 2026-06-08
Last attributed message: 2026-08-30 20:58 UTC

Observed FT8 message patterns

Attributed sample: 48 messages
Active dates: 7 UTC dates
Estimated median S/N: -4 dB
Estimated 10th-90th percentile: -23 to +3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 6, strong (≥ -8 dB) 32.

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 PA0BTR in decoded directed-looking exchanges:

KA8YGL · United States LA6VQ · Norway NF3R · United States OD5ZZ · Lebanon R2AL · European Russia RI1FJL · Franz Josef Land RX3ASQ · European Russia T77RN · San Marino US4EX · Ukraine W3FOX · United States ZS6KVZ · South Africa

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 PA0BTR

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 · 34 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,201 km (approx.)
Last such locator decoded: 2026-08-30 20:44 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	PA0BTR S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-26 17:35	20m	-2 / -	DM2DXA	- / -	2	Partial capture
08-26 17:31	20m	-4 / -	ON4DS	- / -	2	Partial capture
08-26 17:29	20m	-2 / -	NF3R	- / -10	4	✓ Closing fragment
08-26 17:27	20m	0 / -19	ZS6KVZ	-13 / -8	4	✓ Full exchange observed
08-26 17:25	20m	+3 / -	NF3R	- / -	4	Partial capture
08-26 17:23	20m	0 / -	RI1FJL	- / -10	4	✓ Closing fragment
08-26 17:19	20m	-1 / -	RA9FUE	- / -	5	Partial capture
08-26 17:18	20m	+9 / -20	R3UAX	+12 / -	2	Partial capture
08-24 21:36	20m	- / -12	KA8YGL	-17 / -	2	✓ Closing fragment
07-19 20:56	20m	- / -	F4BYA	-1 / -	4	Partial capture
07-15 21:11	20m	- / -21	T77RN	-6 / -	2	✓ Closing fragment
07-10 20:59	20m	- / 0	IK2ZJR	-3 / -	11	Partial capture
06-26 21:01	20m	- / -6	US4EX	-13 / -	6	✓ Closing fragment
06-25 22:33	20m	- / -4	RX3ASQ	-4 / -	2	✓ Closing fragment
06-25 22:31	20m	- / -11	W3FOX	-16 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
172800 -13 1465  PA0BTR ZS6KVZ -19
172815  +2  792  ZS6KVZ PA0BTR R-08 (x2)
172915  -4  792  NF3R PA0BTR JO22 (x4)
173115  -4  792  ON4DS PA0BTR JO22 (x2)
173315  -3  792  EX7DY PA0BTR JO22
173515  -1  792  DM2DXA PA0BTR JO22 (x2)
204445 -24 2030  CQ PA0BTR JO22
204815 -23 2031  OD5ZZ PA0BTR 73
205830 -15 1057  KA4FFK PA0BTR -19

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.

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