F1SES — 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: JN25

Receiver-side FT8 activity involving F1SES, decoded by SO8OO in southeastern Poland. 65 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 10m, across 3 UTC dates in the available aggregate history. Observed between 2026-10-31 and 2026-11-02.

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 65 FT8 messages attributed to F1SES as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (48%), followed by 40 m (35%) and 80 m (15%). Most decodes (74%) 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 -15 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-15 dB

Estimated median S/N

Bands

80m · 10 60m · 31 40m · 23 10m · 1

First attributed message: 2026-10-31
Last attributed message: 2026-11-02 21:10 UTC

Observed FT8 message patterns

Attributed sample: 65 messages
Active dates: 3 UTC dates
Estimated median S/N: -15 dB
Estimated 10th-90th percentile: -22 to -8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 31, moderate (-15 to -9 dB) 27, strong (≥ -8 dB) 7.

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 F1SES in decoded directed-looking exchanges:

DL9YNG · Fed. Rep. of Germany SN4K · Poland UT8SQ · Ukraine DK0HB · Fed. Rep. of Germany DL1IP · Fed. Rep. of Germany DL2DBH · Fed. Rep. of Germany DM5CF · Fed. Rep. of Germany EA3FN · Spain F1PBZ · France HA5UK · Hungary IU0PXM · Italy OK1MAT · Czech Republic

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 F1SES

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: JN25 · 33 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,346 km (approx.)
Last such locator decoded: 2026-11-02 21:09 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	F1SES S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-02 21:09	40m	-9 / -	UT8SQ	- / 0	2	✓ Closing fragment
11-02 21:00	40m	-12 / -	HL5FUA	- / -	2	Partial capture
11-02 20:58	40m	-12 / -	SN4K	- / -3	2	✓ Closing fragment
11-02 20:50	40m	+2 / -	9A60CBM	- / -	2	Partial capture
11-02 16:34	60m	-14 / -	F6DJL	-13 / 0	3	Partial capture
11-02 16:34	60m	- / 0	HA5UK	+5 / -	2	Partial capture
11-02 16:23	40m	-20 / -	DD8VX	-14 / +1	4	Partial capture
11-02 16:20	40m	-16 / -	DL9YNG	-18 / -16	3	✓ Closing observed
11-02 16:18	40m	- / +1	DL9PN	-18 / -	2	Partial capture
11-02 16:16	40m	-19 / -	DD8VX	-15 / -4	5	Partial capture
11-02 06:16	80m	-13 / -11	IQ4JO	+6 / -4	4	✓ Full exchange observed
11-01 18:32	80m	- / -	IK7IJS	+2 / -	4	Partial capture
11-01 18:32	80m	-14 / -8	YO9HP	+3 / -3	3	✓ Full exchange observed
11-01 18:05	80m	+3 / -	F4BND	-6 / +2	6	Partial capture
11-01 18:00	80m	-2 / -4	DK6ITM	+1 / -5	4	Partial capture
11-01 18:00	80m	-8 / -2	DL2MEL	-5 / -14	5	✓ Full exchange observed
11-01 17:58	80m	-11 / -6	DK0RMR	+4 / -	3	✓ Closing observed
11-01 07:10	60m	-16 / -10	OK1MAT	-7 / -3	5	✓ Full exchange observed
11-01 07:10	60m	-10 / -14	SQ7LQT	-1 / -	6	✓ Closing observed
10-31 16:08	60m	-18 / -	EA3FN	- / -10	2	✓ Closing fragment
10-31 16:06	60m	-22 / -4	IU0PXM	-17 / -	2	✓ Closing observed
10-31 16:00	60m	- / -3	DK0HB	-11 / -	3	✓ Closing fragment
10-31 15:57	60m	-24 / -	DM5CF	-10 / -1	4	✓ Closing observed
10-31 15:54	60m	- / 0	F1PBZ	-10 / -	2	✓ Closing fragment
10-31 15:51	60m	-15 / -2	DL2DBH	-5 / +3	4	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
205130  +0  695  9A60CBM F1SES JN25
205600 -11 1487  CQ F1SES JN25 (x2)
205830 -11  987  SN4K F1SES -03 (x2)
210030 -16 1500  HL5FUA F1SES JN25 (x2)
210600 -13 1500  CQ F1SES JN25 (x6)
210930  -9 2128  UT8SQ F1SES +00 (x2)

60m

UTC    dB Audio  Message
163330 -14 1307  CQ F1SES JN25 (x3)
163445  -7 2785  F1SES HA5WV JN97
163445  +3 1376  F1SES HA5UK +00
163445 -13 1308  F1SES F6DJL JN38
163515  +7 1375  F1SES HA5UK +00
163600 -12 1308  F6DJL F1SES +00 (x2)
163930  +3 1375  F1SES HA5UK RR73
164030 -19 1562  CQ F1SES JN25 (x3)
164330 -17 1196  S57BTI F1SES RR73
164400 -17 1196  CQ F1SES JN25                         a1

10m

UTC    dB Audio  Message
101215 -18 2070  5B4AMX F1SES JN25

80m

UTC    dB Audio  Message
183145 -21 1470  CQ F1SES JN25
183200  -1 2220  F1SES YO9HP -08
183200  -3 1206  F1SES DK5DW JN68
183215 -14 2220  YO9HP F1SES R-03
183230  +7 2220  F1SES YO9HP RR73
183230  +1 1351  F1SES IK7IJS JN80 (x4)
061630  +7 2569  F1SES IQ4JO JN63
061645 -13 2570  IQ4JO F1SES -04
061700  +8 2569  F1SES IQ4JO R-11 (x2)
062230 -24 1452  F1SES IN3OWY JN56
062300 -10 1331  F1SES F1NQP JN19

160m

UTC    dB Audio  Message
182515  -7 2200  F1SES IW4AOT -15

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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