F5JSC — 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: France Most frequent locator attributed to this token: IN97

Receiver-side FT8 activity involving F5JSC, decoded by SO8OO in southeastern Poland. 33 FT8 messages attributed to this token as transmitter, on 40m, across 7 UTC dates in the available aggregate history. Observed between 2026-10-12 and 2026-11-05.

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 33 FT8 messages attributed to F5JSC as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

40m · 33

First attributed message: 2026-10-12
Last attributed message: 2026-11-05 17:10 UTC

Observed FT8 message patterns

Attributed sample: 33 messages
Active dates: 7 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -14 to -6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 18, strong (≥ -8 dB) 13.

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 F5JSC in decoded directed-looking exchanges:

DC6MT · Fed. Rep. of Germany DJ0MAB · Fed. Rep. of Germany DL3MIB · Fed. Rep. of Germany DL7ACA · Fed. Rep. of Germany F5ADE · France F6BEC · France HA7TM · Hungary HB9MZI · Switzerland I4WQH · Italy IU2THY · Italy LA6RJA · Norway MM3AUB · Scotland

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 F5JSC

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: IN97 · 12 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,687 km (approx.)
Last such locator decoded: 2026-11-05 17:08 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	F5JSC S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-05 17:04	40m	- / -	2E0MRK	-18 / -	2	Partial capture
11-02 16:48	40m	- / -7	DD3ZZ	-8 / -	4	Partial capture
10-29 16:19	40m	-16 / -	UA4FKT	+2 / -4	4	Partial capture
10-29 16:18	40m	- / -19	S51PV	-4 / -	4	✓ Closing fragment
10-29 16:16	40m	- / -5	OH3MB	+4 / -	2	✓ Closing fragment
10-29 16:13	40m	- / -13	F6BEC	-5 / -	3	✓ Closing fragment
10-26 17:16	40m	-11 / -	DK1ZB	- / -20	2	Partial capture
10-26 17:14	40m	-12 / -	HB9MZI	-19 / -12	3	✓ Closing observed
10-26 17:03	40m	-10 / -14	I4WQH	+2 / -	4	✓ Closing observed
10-26 17:02	40m	-9 / -	IU5VLR	- / -6	2	Partial capture
10-26 17:01	40m	-6 / -	LA6RJA	- / +3	2	✓ Closing fragment
10-26 16:59	40m	-6 / -1	DL3MIB	-6 / -	4	✓ Closing observed
10-26 16:57	40m	-5 / -	MM3AUB	- / -13	3	✓ Closing fragment
10-14 16:12	40m	-14 / -1	DJ0MAB	+2 / -5	5	✓ Full exchange observed
10-14 16:11	40m	- / -8	SP3IPA	-4 / -	3	✓ Closing fragment
10-14 16:10	40m	-13 / -18	HA7TM	+12 / -	4	✓ Closing observed
10-13 15:46	40m	- / -8	DL7ACA	+2 / -	4	✓ Closing fragment
10-13 15:44	40m	- / -	HB9ELE	+10 / -	6	Partial capture
10-13 15:43	40m	- / -3	ON2ACO	-12 / -	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
164915  -3 2103  F5JSC DD3ZZ -10 (x3)
165215  -6  890  AP2FLY F5JSC IN97
165245  -6  891  CQ F5JSC IN97
165345 -12  891  DC6MT F5JSC RR73
165445  -9  891  CQ F5JSC IN97
165745 -13  891  F5ADE F5JSC RR73
171245 -12  890  IU2THY F5JSC RR73
171700  -7 1103  F5JSC DG9ZL R-05
170400  +2 2955  F5JSC G0OOF IO81
170400 -17 2262  F5JSC 2E0MRK IO91 (x2)
170845 -12  890  CQ F5JSC IN97
171015 -13  890  DF6JF F5JSC R-21

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

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