PT7OT — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Brazil Most frequent locator attributed to this token: HI06

Receiver-side FT8 activity involving PT7OT, decoded by SO8OO in southeastern Poland. 42 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-07-16 and 2026-09-06.

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 42 FT8 messages attributed to PT7OT as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (98%), followed by 40 m (2%). 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 moderate S/N range (71%); the estimated median was -14 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-14 dB

Estimated median S/N

Bands

40m · 1 20m · 41

First attributed message: 2026-07-16
Last attributed message: 2026-09-06 22:21 UTC

Observed FT8 message patterns

Attributed sample: 42 messages
Active dates: 6 UTC dates
Estimated median S/N: -14 dB
Estimated 10th-90th percentile: -18 to -9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 30, strong (≥ -8 dB) 2.

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 PT7OT in decoded directed-looking exchanges:

BI4XDT · China CT1BFP · Portugal G7RCQ · England KD4YTW · United States KZ4NJ · United States N4CRB · United States N4DWD · United States N9KE · United States PA1AA · Netherlands R8LB · Asiatic Russia SP8MZB · Poland TA1CQ · European Turkey

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 PT7OT

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: HI06 · 12 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,287 km (approx.)
Last such locator decoded: 2026-09-06 22:21 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	PT7OT S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-06 22:25	40m	- / -	TA3NK	0 / -	2	Partial capture
09-06 22:24	40m	- / -	F4DIA	+2 / -	2	Partial capture
09-06 22:24	40m	- / -	LB7ZG	+12 / -	2	Partial capture
09-06 22:23	40m	- / -15	F1PBZ	-3 / -	3	Partial capture
09-06 22:22	40m	- / -	F5PBG	-4 / -	3	Partial capture
09-06 22:22	40m	- / -	IU5VLR	-2 / -	3	Partial capture
09-06 22:22	40m	- / -	TA3NK	-6 / -	2	Partial capture
09-06 22:21	40m	- / -	DF3YG	-3 / -	6	Partial capture
09-06 22:21	40m	- / -16	YO4NF	+9 / -	2	Partial capture
09-06 22:04	40m	- / -	DK8HC	-2 / -	3	Partial capture
09-06 22:04	40m	- / -	PD0LBY	-2 / -	4	Partial capture
09-06 22:02	40m	- / -	LB7ZG	+10 / -	2	Partial capture
09-06 22:02	40m	- / -	LZ2PC	+6 / -	3	Partial capture
09-06 21:48	40m	- / -	UR4QWW	+1 / -	6	Partial capture
09-06 21:48	40m	- / -21	YO4NF	+7 / -	3	Partial capture
08-24 22:56	20m	- / -	M9VVE	-12 / -	2	Partial capture
08-24 22:54	20m	- / -	IZ1HJU	-12 / -	2	Partial capture
08-24 22:53	20m	- / -13	CT1BFP	-2 / -	6	✓ Closing fragment
08-24 22:52	20m	- / -	DK9ZQ	-6 / -	4	Partial capture
08-24 22:49	20m	-14 / -	N4DWD	- / -16	2	✓ Closing fragment
08-24 22:47	20m	-14 / -	N4CRB	- / -14	2	✓ Closing fragment
08-24 22:46	20m	-14 / -	KZ4NJ	- / -15	2	✓ Closing fragment
08-24 22:42	20m	-12 / -	N9KE	- / -12	2	✓ Closing fragment
08-24 22:38	20m	- / -17	PA1AA	-16 / -	4	✓ Closing fragment
08-24 22:34	20m	- / -14	EA7AQY	-6 / -	2	Partial capture
08-24 22:34	20m	-9 / +5	DL1ERZ	-4 / -15	17	Partial capture
08-24 22:30	20m	-11 / -5	XQ1KK	-8 / -	4	✓ Closing observed
08-24 22:29	20m	-10 / -	KB3VRC	- / -20	2	Partial capture
08-24 22:28	20m	-9 / -	KD4YTW	- / -15	2	✓ Closing fragment
08-24 22:20	20m	- / -	EA3HZE	-15 / -	2	Partial capture
08-24 22:18	20m	- / -	SP8MZB	-14 / -	2	Partial capture
08-24 22:18	20m	- / -	VO1BE	-6 / -	2	✓ Closing fragment
08-24 22:15	20m	-10 / -	TA1CQ	-20 / -16	2	✓ Closing observed
08-24 22:14	20m	-8 / -	WA4UVH	- / -	2	✓ Closing fragment
08-24 22:12	20m	- / -4	BI4XDT	-11 / -	3	✓ Closing fragment
08-23 19:20	20m	- / -	M9LHX	-4 / -	2	Partial capture
08-23 19:20	20m	- / -	F4MXU	+4 / -	2	Partial capture
07-26 21:48	20m	-16 / -	E77FN	- / -11	4	Partial capture
07-26 21:33	20m	- / -	E77FN	-5 / -	3	Partial capture
07-26 19:43	20m	- / -	IS0/IK2YCW	-5 / -	8	Partial capture
07-26 19:41	20m	- / -	PD0JOY	-5 / -	13	Partial capture
07-26 19:17	20m	- / -	LZ4VR	-21 / -	3	Partial capture
07-26 19:16	20m	- / -15	G7RCQ	-11 / -	2	✓ Closing fragment
07-26 19:01	20m	- / -13	F1ODM	-3 / -	4	Partial capture
07-24 21:57	20m	- / -	EA3GXK	-13 / -	2	Partial capture
07-24 21:50	20m	- / -8	R8LB	-9 / -	8	✓ Closing fragment
07-24 21:48	20m	-18 / -	K5JCQ	- / -9	2	Partial capture
07-22 17:47	20m	- / -19	PD0HLA	-9 / -	4	Partial capture
07-19 00:19	40m	- / -10	F5RRS	-18 / -	8	Partial capture
07-19 00:19	40m	- / -14	UA3PAB	-9 / -	4	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
222300  -8 1017  PT7OT 2E0ROJ IO92
222330  +2 1535  PT7OT IU5VLR JN53
222330  -4 1067  PT7OT F5PBG IN78
222330  -6 2640  PT7OT F1PBZ -15
222330  -6  510  PT7OT DF3YG JO33
222400 +11 2964  PT7OT LB7ZG JP50
222400  +1 1032  PT7OT F4DIA JN36
222400  -3 2640  PT7OT F1PBZ -15
222430 -10 1534  PT7OT PD0LBY JO22
222430 +12 2964  PT7OT LB7ZG JP50
222430  +4 1032  PT7OT F4DIA JN36
222430  -1 2640  PT7OT F1PBZ -15
222500  +1 1017  PT7OT TA3NK KM39 (x2)
222700  -6 1534  PT7OT PD0LBY JO22

20m

UTC    dB Audio  Message
225315 -13 1055  CQ PT7OT HI06                         a1
225330  -3 1055  PT7OT DK9ZQ JO41
225330  +2 1618  PT7OT CT1BFP IM59
225400 -11 2290  PT7OT IZ1HJU JN44
225400  -4 1055  PT7OT DK9ZQ JO41
225400  -5 1618  PT7OT CT1BFP IM59
225430 -13 1053  PT7OT KJ1R FN32
225430 -14 2289  PT7OT IZ1HJU JN44
225430  -1 1618  PT7OT CT1BFP IM59 (x3)
225600 -13  594  PT7OT M9VVE IO93
225600  +0 1618  PT7OT CT1BFP 73
225615 -14 1054  KC5OCH PT7OT -10
225700 -11  595  PT7OT M9VVE IO93

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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