SV1HBS — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving SV1HBS, decoded by SO8OO in southeastern Poland. 55 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-07-15 and 2026-08-30.

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 55 FT8 messages attributed to SV1HBS as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (53%), followed by 40 m (36%) and 20 m (7%). Several six-hour UTC windows tied for the largest share (98%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (93%); the estimated median was -1 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-1 dB

Estimated median S/N

Bands

80m · 29 60m · 2 40m · 20 20m · 4

First attributed message: 2026-07-15
Last attributed message: 2026-08-30 19:29 UTC

Observed FT8 message patterns

Attributed sample: 55 messages
Active dates: 5 UTC dates
Estimated median S/N: -1 dB
Estimated 10th-90th percentile: -7 to +4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 2, strong (≥ -8 dB) 51.

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 SV1HBS in decoded directed-looking exchanges:

D2UY · Angola ×2 KF0YOB · United States 4X1FK · Israel F5RRS · France JE2EBT · Japan JH0NOS · Japan

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 SV1HBS

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 · 40 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,275 km (approx.)
Last such locator decoded: 2026-08-30 19:29 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	SV1HBS S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-30 19:29	60m	-2 / -	<...>	- / -5	2	Partial capture
08-24 18:48	40m	-4 / -	D2ACE	- / -6	3	Partial capture
08-24 18:34	40m	-3 / -	D2ACE	- / -	3	Partial capture
08-24 18:30	40m	+2 / -	VJ6X	- / -24	7	Partial capture
08-24 18:27	40m	-5 / -	D2ACE	- / -	5	Partial capture
08-24 18:20	80m	+4 / -	ZS6WAB	- / -	5	Partial capture
08-24 18:16	80m	-4 / -	ZA/IK3BNO	- / -	3	Partial capture
08-24 18:13	80m	-6 / -	<...>	- / -	3	Partial capture
08-05 17:13	20m	- / -13	D2UY	-8 / -	2	✓ Closing fragment
07-17 19:25	80m	+1 / -	UB0SMX/P	- / -	3	Partial capture
07-17 19:22	80m	0 / -	D2UY	- / -16	4	✓ Closing fragment
07-17 19:20	80m	+1 / -	4X1FK	-15 / -4	4	✓ Closing observed
07-17 19:19	80m	+2 / -	JE2EBT	- / -21	3	✓ Closing fragment
07-17 19:18	80m	+1 / -12	F5RRS	-6 / -	4	✓ Closing observed
07-17 19:16	80m	0 / -	JH0NOS	- / -17	4	✓ Closing fragment
07-17 18:54	20m	- / -12	KF0YOB	-11 / -	2	✓ Closing fragment
07-17 18:48	20m	-16 / -	<...>	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
192915  -3 1130  <...> SV1HBS KM18
192930  +1  389  SV1HBS GM0MKM/A -08
192945  +0 1130  <...> SV1HBS R-05

40m

UTC    dB Audio  Message
183000  -3 1847  VJ6X SV1HBS KM18 (x7)
183430  -3 1507  D2ACE SV1HBS KM18 (x7)
192630  -2  910  V51WH SV1HBS KM18

80m

UTC    dB Audio  Message
192345  +0  887  D2UY SV1HBS 73
192530  +2  887  UB0SMX/P SV1HBS KM18 (x3)
181300  -7 2418  <...> SV1HBS KM18 (x3)
181600  -7 2418  <ZA/IK3BNO> SV1HBS KM18 (x3)
182015  +3 2418  ZS6WAB SV1HBS KM18 (x5)

20m

UTC    dB Audio  Message
070430  -7 2792  NZ2X SV1HBS KM18
184815 -15 2548  <...> SV1HBS KM18 (x2)
185400  -9  995  SV1HBS KF0YOB -12 (x2)
191100 -11 2548  SV1HBS RR73; R4FDQ <...> -14
171300  -9  615  SV1HBS D2UY -13 (x2)
151730 -21 1849  BH2WTV SV1HBS KM18

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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee