SV3CKF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Greece Most frequent locator attributed to this token: KM06

Receiver-side FT8 activity involving SV3CKF, decoded by SO8OO in southeastern Poland. 885 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 29 UTC dates in the available aggregate history. Observed between 2026-06-29 and 2026-08-19.

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 885 FT8 messages attributed to SV3CKF as the transmitting token by decoded message structure across 29 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (62%), followed by 10 m (21%) and 60 m (14%). Most decodes (88%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12.8 dB.

Overview

885

Messages attributed

UTC dates decoded

102

Active 15-min windows

-12.8 dB

Estimated median S/N

Bands

80m · 548 60m · 123 40m · 6 20m · 18 10m · 190

First attributed message: 2026-06-29
Last attributed message: 2026-08-19 18:56 UTC

Observed FT8 message patterns

Attributed sample: 885 messages
Active dates: 29 UTC dates
Estimated median S/N: -12.8 dB
Estimated 10th-90th percentile: -21 to -5.6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 303, moderate (-15 to -9 dB) 385, strong (≥ -8 dB) 197.

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 SV3CKF in decoded directed-looking exchanges:

F1PBZ · France ×3 SP8AWL · Poland ×3 HA3GX · Hungary ×2 LY8O · Lithuania ×2 S56FPW · Slovenia ×2 DO5PY · Fed. Rep. of Germany ×2 E70SZ · Bosnia-Herzegovina ×2 R7CD · European Russia ×2 4X5MZ · Israel CT1CQM · Portugal CT3MD · Madeira Islands DG0MG · Fed. Rep. of Germany

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 SV3CKF

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: KM06 · 568 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,496 km (approx.)
Last such locator decoded: 2026-08-19 18:56 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	SV3CKF S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-19 19:01	80m	- / -13	DO2TO	+3 / -	3	✓ Closing fragment
08-19 18:58	80m	- / -3	LY8O	-10 / -	2	✓ Closing fragment
08-19 18:52	60m	-16 / -4	ON7IO	-14 / -	5	✓ Closing observed
08-19 18:50	60m	-14 / -6	S56FPW	-10 / -14	5	✓ Full exchange observed
08-17 23:26	80m	- / -	OE2AGZ	-12 / -	3	Partial capture
08-17 18:37	10m	-18 / -	PY4TD	- / -10	2	✓ Closing fragment
08-16 07:11	10m	-22 / -9	DK8EE	-18 / -	5	✓ Closing observed
08-16 06:35	20m	- / -	DL8CN	-14 / -	3	Partial capture
08-16 06:23	20m	- / -6	VK4MA	-3 / -	3	✓ Closing fragment
08-16 06:14	20m	- / -	MI7RDK	-4 / -	2	Partial capture
08-16 06:13	20m	- / -1	DJ2PW	-17 / -	3	✓ Closing fragment
08-16 05:35	20m	- / -12	PD0RCQ	-18 / -	3	✓ Closing fragment
08-15 20:12	80m	- / -13	JE2ERR	-12 / -	2	✓ Closing fragment
08-15 19:56	80m	- / -19	<...>	+4 / -	3	Partial capture
08-15 19:49	60m	-10 / -13	SP8AWL	+4 / -5	5	✓ Full exchange observed
08-15 19:49	60m	- / -	OH7HRH	-15 / -	2	Partial capture
08-15 19:48	60m	- / -	EA1KCN	-17 / -	4	Partial capture
08-15 19:46	60m	-10 / -8	S55P	-3 / -6	5	✓ Full exchange observed
08-15 19:43	60m	-10 / -	SV1GYN	- / -6	2	✓ Closing fragment
08-15 19:12	20m	-23 / -7	EA8CVR	-19 / -6	3	✓ Full exchange observed
08-15 19:09	20m	-17 / 0	CS8ABF	-4 / 0	4	Partial capture
08-15 17:38	10m	-17 / -	LU3JVR	- / -17	2	✓ Closing fragment
08-15 17:34	10m	-20 / -	IN3IZQ	- / -17	2	Partial capture
08-15 17:31	10m	-16 / -	DL5BTE	- / +2	2	✓ Closing fragment
08-15 17:29	10m	-16 / -	CT3MD	- / -2	3	✓ Closing fragment
08-15 17:27	10m	-22 / -	LU7EAT	- / -8	2	✓ Closing fragment
08-15 06:54	20m	- / -22	5B4AMX	-11 / -	2	✓ Closing fragment
08-15 06:50	20m	- / -12	R2ZCA	-20 / -	2	✓ Closing fragment
08-14 21:30	80m	- / +6	IT9VCE	-7 / -	3	✓ Closing fragment
08-14 21:26	80m	-1 / -	DG3EAJ	-5 / -17	5	✓ Closing observed
08-14 21:26	80m	-8 / -13	DO6NI	-8 / -18	9	Partial capture
08-14 21:23	80m	-5 / +6	IT9PQJ	+4 / +8	5	✓ Full exchange observed
08-14 21:20	80m	- / -10	UA1OJL	-9 / -	2	Partial capture
08-14 21:13	80m	-10 / -15	DO8TG	-16 / -20	8	✓ Full exchange observed
08-14 20:59	80m	- / -	PH7GD	-10 / -	2	Partial capture
08-14 20:40	80m	- / -14	G0OYQ	+2 / -	3	✓ Closing fragment
08-14 20:35	40m	- / -	DJ1OJ	-2 / -	2	Partial capture
08-14 20:35	80m	-4 / -	IK3BVD	-4 / -8	3	✓ Closing observed
08-14 20:30	80m	+4 / -12	IW5DLY	+3 / -3	5	Partial capture
08-14 20:21	80m	- / -22	SP5FWT	0 / -	2	Partial capture
08-14 20:17	80m	-8 / -15	R3BDQ	+7 / -11	4	✓ Full exchange observed
08-14 20:13	80m	-9 / -15	DO5PY	+1 / -14	7	✓ Full exchange observed
08-14 20:10	80m	-7 / -6	YL3BU	+3 / -12	5	✓ Full exchange observed
08-14 20:09	80m	- / -	SP6JKE	-8 / -	2	Partial capture
08-14 20:06	80m	- / -	SA4AGM	-8 / -	5	Partial capture
08-14 20:02	80m	- / -	SQ1EIC	-2 / -	2	Partial capture
08-14 19:59	80m	0 / -7	R7CD	+8 / -5	5	✓ Full exchange observed
08-14 19:53	80m	-12 / -12	RW3YS	+16 / -7	5	✓ Full exchange observed
08-14 19:52	80m	-3 / -11	R8FB	+8 / -11	5	✓ Full exchange observed
08-14 19:47	80m	- / -	SQ1EIC	+6 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
201530 -22 1325  CQ SV3CKF KM06 (x2)
232630 -10 2609  SV3CKF OE2AGZ JN67 (x3)
185445 -15 1955  CQ SV3CKF KM06 (x4)
185645 -13 1955  HB3YOR SV3CKF KM06
185830 -10 1353  SV3CKF LY8O -03 (x2)
190130  +0 1955  SV3CKF DO2TO JO72 (x3)

60m

UTC    dB Audio  Message
184845 -15 1986  CQ SV3CKF KM06 (x4)
185030 -11  816  SV3CKF S56FPW JN76
185045 -13 1985  S56FPW SV3CKF -14
185100 -10  816  SV3CKF S56FPW R-06
185115 -15 1985  S56FPW SV3CKF RR73
185130 -10  815  SV3CKF S56FPW 73
185145 -17 1985  CQ SV3CKF KM06
185215 -16 1985  ON7IO SV3CKF KM06 (x2)
185300 -13 1030  SV3CKF ON7IO -04 (x2)
185345 -15 1986  ON7IO SV3CKF 73

20m

UTC    dB Audio  Message
061330 -13 1904  SV3CKF DJ2PW JN39
061400  -3  407  SV3CKF MI7RDK IO74
061400 -21 1904  SV3CKF DJ2PW R-01
061430  -6  406  SV3CKF MI7RDK IO74
061430 -18 1904  SV3CKF DJ2PW 73
062345  -4  386  SV3CKF VK4MA QG64 (x3)
063515 -16  278  SV3CKF DL8CN JO31 (x3)
222930 -19 2116  SV3CKF PD0DNA -12
223830 -11 2708  SV3CKF IW5ALZ JN53
225400  -6 2888  SV3CKF EA7LGM IM67
182015 -21 1226  DL1R SV3CKF -05

10m

UTC    dB Audio  Message
174430 -20 1480  CQ SV3CKF KM06 (x3)
070900 -23 1491  SV7BAY SV3CKF KM06
071115 -20 2146  SV3CKF DK8EE JO41 (x3)
071230 -22 1489  DK8EE SV3CKF RR73
071245 -18 2146  SV3CKF DK8EE 73
183330 -19 1874  PY1BE SV3CKF KM06
183700 -19 2103  PY1BP SV3CKF KM06
183730 -18 2105  PY4TD SV3CKF -10 (x2)
184230 -23 2105  CQ SV3CKF KM06                        a1 (x2)

40m

UTC    dB Audio  Message
184300  -3 2489  SV3CKF SV1BLD RRR
184345 -24 1919  9H2TM SV3CKF KM06
041430  -5  482  SV3CKF ZA/KN7L +06
195300 -13 1010  SV3CKF SP3IPA JO82
195445 -18 1270  JH2VVH SV3CKF -10 (x2)
195645 -21 1269  CQ SV3CKF KM06                        a1 (x3)
190630 -17 2054  SV3CKF PE0V JO21 (x2)
190700 -21 1281  SV3CKF DD1MI JO62
190830  -9 1535  SV3CKF IU5VLR 73
203530  +0 2550  SV3CKF DJ1OJ JN58 (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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