SV7TRK — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Greece Most frequent locator attributed to this token: KN21

Receiver-side FT8 activity involving SV7TRK, decoded by SO8OO in southeastern Poland. 204 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-20 and 2026-10-03.

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 204 FT8 messages attributed to SV7TRK as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (93%), followed by 160 m (3%) and 40 m (3%). Most decodes (100%) fell within the six-hour window 21:00-03:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

204

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

160m · 6 80m · 190 40m · 6 20m · 2

First attributed message: 2026-06-20
Last attributed message: 2026-10-03 00:53 UTC

Observed FT8 message patterns

Attributed sample: 204 messages
Active dates: 6 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -19 to -2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 44, moderate (-15 to -9 dB) 80, strong (≥ -8 dB) 80.

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 SV7TRK in decoded directed-looking exchanges:

HA5AO · Hungary ×2 S57TW · Slovenia ×2 9A5E · Croatia ×2 E75T · Bosnia-Herzegovina ×2 EC3A · Spain ×2 F4WDL · France ×2 OZ1AKZ · Denmark ×2 SP6ARD · Poland ×2 SP3BPU · Poland DK1HSI · Fed. Rep. of Germany EA4HPY · Spain EA7LIC · Spain

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 SV7TRK

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: KN21 · 130 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 970 km (approx.)
Last such locator decoded: 2026-10-01 00:45 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	SV7TRK S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-03 00:53	80m	- / -	DK8HC	+3 / -	5	Partial capture
10-03 00:53	80m	- / -	UA4FKT	+13 / -	3	Partial capture
10-03 00:52	80m	-12 / +6	SX2LGT	-16 / -3	4	✓ Full exchange observed
10-01 00:47	80m	-9 / -7	F4WDL	-2 / -11	7	✓ Full exchange observed
10-01 00:45	80m	-10 / +4	HG8LXL	+10 / -1	5	✓ Full exchange observed
10-01 00:44	80m	-8 / -	OK1HEH	- / -	2	Partial capture
10-01 00:43	80m	- / -8	ON1JP	-12 / -	4	Partial capture
10-01 00:42	80m	-7 / -4	F5PBG	+1 / -13	6	✓ Full exchange observed
10-01 00:41	80m	-7 / 0	SV9MBH	-18 / +5	5	✓ Full exchange observed
10-01 00:39	80m	-12 / -	IU2SLI	- / -	2	Partial capture
10-01 00:37	80m	-10 / -17	OZ1AKZ	-3 / -11	9	✓ Full exchange observed
10-01 00:36	80m	-4 / -1	F4WDL	-4 / -	5	Partial capture
10-01 00:35	80m	-6 / -	F5RRS	- / -	2	Partial capture
10-01 00:34	80m	-5 / -	IK5CHL	- / -	2	Partial capture
10-01 00:33	80m	-6 / -	IW9FRA	- / -	2	Partial capture
10-01 00:32	80m	-4 / -	IU0UYY	- / -	2	Partial capture
10-01 00:30	80m	-5 / -	Z61DX	- / -	2	Partial capture
10-01 00:30	80m	-7 / -	AP2HA	- / -16	3	Partial capture
10-01 00:28	80m	-9 / -	HF100PKP	- / -	2	Partial capture
10-01 00:26	80m	-9 / -	Z61DX	- / -	2	Partial capture
10-01 00:25	80m	-8 / -	HF100PKP	- / -	2	Partial capture
10-01 00:24	80m	- / -	F5PBG	-2 / -	2	Partial capture
10-01 00:23	80m	-2 / -13	F1PBZ	-2 / -11	5	✓ Full exchange observed
10-01 00:22	80m	-5 / -	UK8FCM	- / -	2	Partial capture
10-01 00:20	80m	-4 / +4	S57TW	+12 / +3	5	✓ Full exchange observed
10-01 00:19	80m	0 / -	HF100PKP	- / -7	2	✓ Closing fragment
10-01 00:18	80m	-4 / -	CT7AUT	- / -	2	Partial capture
10-01 00:17	80m	-3 / -	AP2HA	- / -	2	Partial capture
10-01 00:15	80m	-6 / -	R9CB	- / -	2	Partial capture
10-01 00:14	80m	-8 / +1	OM4KK	+18 / +1	6	Partial capture
10-01 00:13	80m	-3 / -	UA9SY	-13 / -12	3	✓ Closing observed
10-01 00:09	80m	0 / -	HF100PKP	- / -11	5	Partial capture
10-01 00:08	80m	+4 / -	CT7AUT	- / -	2	Partial capture
10-01 00:06	80m	-1 / -15	UA9SY	-15 / -	7	Partial capture
10-01 00:05	80m	-3 / -	Z61DX	- / -	2	Partial capture
10-01 00:04	80m	+2 / -	UN8FR	- / -12	2	Partial capture
10-01 00:03	80m	0 / -	OM4KK	- / -	2	Partial capture
10-01 00:02	80m	-5 / -	AP2HA	- / -	2	Partial capture
10-01 00:00	80m	-7 / -	DP75BAC	- / -	2	Partial capture
10-01 00:00	80m	-24 / -5	UN8FR	-6 / -	2	Partial capture
09-30 23:58	80m	0 / -	Z61DX	- / -	2	Partial capture
09-30 23:58	80m	- / -	F5PBG	+8 / -	2	Partial capture
09-30 23:56	80m	-4 / +4	UN0GY	-10 / -3	5	✓ Full exchange observed
09-30 23:55	80m	-12 / -11	RN2F	+5 / -13	6	✓ Full exchange observed
09-30 23:54	80m	-13 / -	Z61DX	- / -	2	Partial capture
09-30 23:50	80m	-8 / -	UA4FKT	+2 / +6	6	Partial capture
09-30 23:48	80m	-9 / -1	9A5E	+10 / +5	5	✓ Full exchange observed
09-27 22:44	80m	- / -	IU5HIU	-11 / -	3	Partial capture
09-27 22:43	80m	-14 / -10	DG5PW	+3 / -	8	Partial capture
09-27 22:42	80m	-24 / -20	DL7ACA	+8 / -	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
004930  -7 1625  SV7TRK F4WDL R-07
004945 -13 2189  F4WDL SV7TRK RR73
005000  +1 1625  SV7TRK F4WDL 73
005230 -24 1856  SV7TRK SX2LGT +06
005245 -13  792  SX2LGT SV7TRK R-03
005300  -8 1856  SV7TRK SX2LGT RR73
005315 -10  792  SX2LGT SV7TRK 73
005330 +12  793  SV7TRK UA4FKT LO23
005330  +4  565  SV7TRK DK8HC JO42
005400 +11  793  SV7TRK UA4FKT LO23
005400  +7  565  SV7TRK DK8HC JO42
005430 +15  793  SV7TRK UA4FKT LO23
005430  +7  565  SV7TRK DK8HC JO42 (x3)

160m

UTC    dB Audio  Message
022700 -21 1367  HA5AO SV7TRK 73
022815 +12 1723  SV7TRK SP3BPU -10 (x2)
022900 -24 1367  SP3BPU SV7TRK 73
023330 +10 1447  SV7TRK LZ1KU KN32
023415 -20 1797  LZ1KU SV7TRK +09
213845 +19  494  SV7TRK HA5AO -06
213900 -23 1733  HA5AO SV7TRK R-08
213915 +16  494  SV7TRK HA5AO RR73
213930 -22 1733  HA5AO SV7TRK 73
213945  -1 1732  SV7TRK DK7ZT -06 (x5)

60m

UTC    dB Audio  Message
022330  -5 2462  SV7TRK S57TW -11 (x2)

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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