SV1KWA — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Greece Most frequent locator attributed to this token: KM18

Receiver-side FT8 activity involving SV1KWA, decoded by SO8OO in southeastern Poland. 40 FT8 messages attributed to this token as transmitter, on 80m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-02 and 2026-10-12.

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 40 FT8 messages attributed to SV1KWA as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (100%). In this small sample, the estimated median decoder S/N was -9 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

80m · 40

First attributed message: 2026-08-02
Last attributed message: 2026-10-12 18:09 UTC

Observed FT8 message patterns

Attributed sample: 40 messages
Active dates: 2 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -16 to +4 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 17, strong (≥ -8 dB) 19.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with SV1KWA in decoded directed-looking exchanges:

CN8NS · Morocco 9H6C · Malta DO9SAM · Fed. Rep. of Germany F5PZT · France OH7UE · Finland OM1TD · Slovak Republic OZ1KWJ · Denmark OZ6FH · Denmark R2GFD · European Russia R4FDD · European Russia R7YZ · European Russia SP7ROH · Poland

Most frequent locator attributed to SV1KWA

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: KM18 · 17 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,275 km (approx.)
Last such locator decoded: 2026-10-12 18:02 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	SV1KWA S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-12 18:09	80m	-15 / -8	DO9SAM	+20 / -14	4	✓ Full exchange observed
10-12 18:06	80m	- / -5	R7YZ	-16 / -	2	✓ Closing fragment
10-12 18:04	80m	-12 / -19	OZ1KWJ	-1 / -	3	✓ Closing observed
10-12 18:01	80m	-10 / -	OM1TD	+8 / -11	3	✓ Closing observed
10-12 17:58	80m	-12 / -	OZ6FH	-6 / -13	4	✓ Closing observed
10-12 17:55	80m	-14 / -1	F5PZT	-8 / -7	5	✓ Full exchange observed
10-12 17:52	80m	-15 / -15	DL2MEL	0 / -	2	Partial capture
10-12 17:49	80m	-16 / -5	OH7UE	+15 / -9	7	✓ Full exchange observed
10-12 17:40	80m	- / -	YT4VM	+16 / -	2	Partial capture
10-10 13:00	10m	- / 0	CN8NS	-15 / -	2	✓ Closing fragment
08-02 18:18	80m	0 / -14	UR5LKE	+1 / -2	4	✓ Full exchange observed
08-02 18:17	80m	+1 / -	SP7ROH	- / -17	3	✓ Closing fragment
08-02 18:12	80m	0 / -	R4FDD	+6 / +8	3	✓ Closing observed
08-02 18:10	80m	+4 / -	RA0SCA	- / -	3	Partial capture
08-02 18:08	80m	+2 / -9	R2GFD	+9 / +1	5	✓ Full exchange observed
08-02 18:08	80m	+2 / -7	UA3GJM	+7 / -4	6	✓ Full exchange observed
08-02 18:06	80m	+2 / +3	UT4WT	+13 / -14	5	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
175915 -11  385  OZ6FH SV1KWA 73
180115  -9  386  OM1TD SV1KWA R-11
180130  +8  638  SV1KWA OM1TD RR73
180145 -11  386  OM1TD SV1KWA 73
180230  -9  386  S55X SV1KWA KM18
180445  -2  963  SV1KWA OZ1KWJ -19 (x2)
180530 -12  386  OZ1KWJ SV1KWA 73
180630 -15  984  SV1KWA R7YZ -05 (x2)
180845  -8  386  9H6C SV1KWA 73
180900 +19  386  SV1KWA DO9SAM JO61
180915 -13  386  DO9SAM SV1KWA -14
180930 +20  386  SV1KWA DO9SAM R-08
180945 -17  385  DO9SAM SV1KWA RR73

10m

UTC    dB Audio  Message
130000 -16 2128  SV1KWA CN8NS +00 (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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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