SV0TPN — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Greece Most frequent locator attributed to this token: KM28

Receiver-side FT8 activity involving SV0TPN, decoded by SO8OO in southeastern Poland. 735 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 13 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-05.

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 735 FT8 messages attributed to SV0TPN as the transmitting token by decoded message structure across 13 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (79%), followed by 40 m (9%) and 80 m (6%). Most decodes (74%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (80%); the estimated median was 0 dB.

Overview

735

Messages attributed

UTC dates decoded

Active 15-min windows

0 dB

Estimated median S/N

Bands

160m · 8 80m · 46 40m · 68 20m · 583 10m · 30

First attributed message: 2026-06-08
Last attributed message: 2026-09-05 00:35 UTC

Observed FT8 message patterns

Attributed sample: 735 messages
Active dates: 13 UTC dates
Estimated median S/N: 0 dB
Estimated 10th-90th percentile: -12.9 to +10 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 14, moderate (-15 to -9 dB) 133, strong (≥ -8 dB) 588.

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 SV0TPN in decoded directed-looking exchanges:

SV8GSP · Greece AD9DU · United States UR7VU · Ukraine DL5DQZ · Fed. Rep. of Germany 5Z4VJ · Kenya IZ0AIO · Italy EA4RKC · Spain RW1CW · European Russia DO6JSA · Fed. Rep. of Germany JE1LFX · Japan K4KWZ · United States MI7XHT · Northern Ireland

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 SV0TPN

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: KM28 · 394 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,297 km (approx.)
Last such locator decoded: 2026-09-05 00:35 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	SV0TPN S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-05 00:36	160m	- / -	UX7QV	+13 / -	6	Partial capture
09-05 00:31	160m	-12 / -16	SV8GSP	-17 / -16	7	✓ Full exchange observed
08-21 18:02	20m	- / +4	DL8RBL	-2 / -	3	Partial capture
08-21 18:01	20m	- / -	OK2CNI	+21 / -	5	Partial capture
08-20 13:31	20m	+10 / -	F5SFT	- / -	3	Partial capture
08-20 13:29	20m	+9 / -	JR6EZE	- / -	3	Partial capture
08-17 23:09	20m	-6 / -	K4TMR	- / -19	2	Partial capture
08-17 23:07	20m	-6 / -	A61OK	- / -	4	Partial capture
08-17 00:36	20m	-10 / -	N9SNK	- / -9	4	Partial capture
08-17 00:35	20m	-11 / -	KN4USA	- / -12	2	✓ Closing fragment
08-17 00:25	20m	-9 / -	KI5DXY	- / -	9	Partial capture
08-17 00:24	20m	-9 / -	AD9DU	- / -11	3	✓ Closing fragment
08-14 22:23	20m	-6 / -	9Y4DG	- / -18	4	✓ Closing fragment
08-14 22:18	80m	+2 / -2	DO6JSA	-6 / -15	8	✓ Full exchange observed
08-14 22:17	80m	-2 / -1	F1PBZ	+2 / -6	5	Partial capture
08-13 21:42	20m	-11 / 0	WB2BIN	-16 / -	12	Partial capture
08-13 21:40	20m	-11 / -	JH5AVM	- / -	2	Partial capture
08-13 21:39	20m	-7 / -	BU2FW	- / -	2	Partial capture
08-13 19:37	20m	-12 / -	4L7T	- / -	4	Partial capture
08-13 19:33	20m	-10 / -	JE1LFX	- / -	2	✓ Closing fragment
08-11 13:06	20m	- / -	HA1BF	0 / -	6	Partial capture
08-11 12:43	20m	- / -	G0GHL	-13 / -	3	Partial capture
08-11 12:40	20m	- / -	9A3K	+12 / -	2	Partial capture
08-11 12:40	20m	- / -	M9MAS	-12 / -	3	Partial capture
08-11 12:37	20m	- / -	G0GHL	-16 / -	2	Partial capture
08-11 12:37	20m	- / -	IZ0GIY	-14 / -	3	Partial capture
08-11 12:35	20m	- / -	9A3K	+1 / -	2	Partial capture
08-11 12:30	20m	- / -	9A3K	+20 / -	2	Partial capture
08-11 12:21	20m	- / -	DK6IF	-11 / -	5	Partial capture
08-11 12:20	20m	- / -	G0GHL	-8 / -	2	Partial capture
08-11 12:17	20m	- / -	F4BYA/P	-2 / -	12	Partial capture
08-11 12:13	20m	- / -	F4BYA/P	-6 / -	2	Partial capture
08-11 12:03	20m	- / -	G0GHL	-12 / -	2	Partial capture
08-11 11:59	20m	- / -	G8RZ	-8 / -	7	Partial capture
08-11 11:56	20m	- / -	G0GHL	-9 / -	2	Partial capture
08-11 11:51	20m	- / -	G0GHL	-11 / -	3	Partial capture
08-11 11:42	20m	- / -	G0GHL	-12 / -	2	Partial capture
08-11 11:34	20m	- / -	MW7TTA	-13 / -	3	Partial capture
08-11 11:24	20m	- / -	F4BYA/P	-12 / -	5	Partial capture
08-11 11:15	20m	- / -	IK1JUS	-19 / -	5	Partial capture
08-11 11:15	20m	- / -	YO4GGA	+2 / -	3	Partial capture
08-11 11:08	20m	- / -	F4BYA/P	-14 / -	2	Partial capture
08-11 11:03	20m	- / -	YO2AMU	-12 / -	2	Partial capture
08-11 10:58	20m	- / -	YO2AMU	-11 / -	3	Partial capture
08-11 10:36	20m	- / -	RW3VX	-15 / -	2	Partial capture
08-11 10:24	20m	- / -7	F1PBZ	-4 / -	2	Partial capture
08-11 10:16	20m	- / -9	OM2DX	+3 / -	8	Partial capture
08-11 10:14	20m	- / -	DF5DY	-13 / -	2	Partial capture
08-11 10:03	20m	- / -	DL5MKR	-21 / -	3	Partial capture
08-11 09:38	20m	- / -	F4BYA/P	-7 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
003245 -19 1863  SV0TPN SV8GSP -16
003300  -8  746  SV8GSP SV0TPN R-16
003315 -17 1863  SV0TPN SV8GSP RR73
003330 -10  746  SV8GSP SV0TPN 73
003400  -8  746  CQ SV0TPN KM28 (x3)
003515 +15  746  SV0TPN OM2WQ JN88
003530 -14  746  CQ SV0TPN KM28
003615 +15  747  SV0TPN UX7QV KN29 (x6)

20m

UTC    dB Audio  Message
133100 +13  827  F5SFT SV0TPN KM28 (x3)
133315 +17  827  SQ8DIO SV0TPN KM28
180015  +1  826  PD1DRE SV0TPN 73
180100 +20 2418  SV0TPN OK2CNI JN79 (x3)
180215  +1  826  CQ SV0TPN KM28
180230  -4 1800  SV0TPN DL8RBL +04
180230 +21 2418  SV0TPN OK2CNI JN79
180245  -8  826  CQ SV0TPN KM28
180300  +1 1801  SV0TPN DL8RBL +04
180300 +22 2418  SV0TPN OK2CNI JN79
180330  -4 1802  SV0TPN DL8RBL +04

80m

UTC    dB Audio  Message
221800  -4  753  CQ SV0TPN KM28
221815  +3 2557  SV0TPN F1PBZ -01
221830  +0  753  CQ SV0TPN KM28
221845 -13 1514  SV0TPN DO6JSA JN48
221845  +2 2557  SV0TPN F1PBZ -01
221900  -8  753  CQ SV0TPN KM28
221915  -4 1514  SV0TPN DO6JSA JN48
221930  -3  753  F1PBZ SV0TPN R-06
221945  -5 1514  SV0TPN DO6JSA JN48
222000  -1  753  F1PBZ SV0TPN R-06
222015  -4 1514  SV0TPN DO6JSA JN48
222030  +2  753  DO6JSA SV0TPN -15
222045  -8 1514  SV0TPN DO6JSA R-02
222100  +2  753  DO6JSA SV0TPN RR73
222115  -5 1514  SV0TPN DO6JSA 73

40m

UTC    dB Audio  Message
221045  -3  790  SV0TPN OE5NVL JN67 (x2)
001615 -14  808  SV5AZK SV0TPN R-06 (x2)
001715  -6  809  DL5DQZ SV0TPN KM28
001730  -1 2347  SV0TPN DL5DQZ +04
001745  -5  808  DL5DQZ SV0TPN R-11
001800  -4 2347  SV0TPN DL5DQZ RR73
001815  -8  809  DL5DQZ SV0TPN 73
001915  -8  808  CQ SV0TPN KM28
001930 -24 1535  SV0TPN IU5VLR JN53
001945  -8  808  CQ SV0TPN KM28
002445  -7  809  PY5GA SV0TPN R-18
002545  -9  809  CQ SV0TPN KM28 (x2)

60m

UTC    dB Audio  Message
200645 -10  784  SV0TPN LB9TH JO29

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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