F1DOA — 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: JN08

Receiver-side FT8 activity involving F1DOA, decoded by SO8OO in southeastern Poland. 44 FT8 messages attributed to this token as transmitter, on 40m, across 6 UTC dates in the available aggregate history. Observed between 2026-09-22 and 2026-10-14.

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 44 FT8 messages attributed to F1DOA as the transmitting token by decoded message structure across 6 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. Most successfully decoded messages attributed to this token fell in SO8OO's moderate S/N range (68%); the estimated median was -14 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-14 dB

Estimated median S/N

Bands

40m · 44

First attributed message: 2026-09-22
Last attributed message: 2026-10-14 17:09 UTC

Observed FT8 message patterns

Attributed sample: 44 messages
Active dates: 6 UTC dates
Estimated median S/N: -14 dB
Estimated 10th-90th percentile: -17 to -10 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, moderate (-15 to -9 dB) 30, strong (≥ -8 dB) 1.

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 F1DOA in decoded directed-looking exchanges:

DK7ZT · Fed. Rep. of Germany DL1IP · Fed. Rep. of Germany DL4PY · Fed. Rep. of Germany DL6CMF · Fed. Rep. of Germany F4PCM · France HA1BF · Hungary HA7TM · Hungary ON7YC · Belgium OT7K · Belgium PA3EWP · Netherlands PE9JAN · Netherlands S55A · Slovenia

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 F1DOA

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: JN08 · 30 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,514 km (approx.)
Last such locator decoded: 2026-10-14 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	F1DOA S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-14 17:08	40m	-15 / -8	ON7YC	-13 / -17	4	✓ Full exchange observed
10-14 17:07	40m	- / -	DL3IAK	-12 / -	2	Partial capture
10-14 17:03	40m	-16 / -15	HA7TM	+9 / -14	6	✓ Full exchange observed
10-14 16:18	40m	- / -	HA7TM	+19 / -	3	Partial capture
10-14 16:18	40m	-11 / -	ON4CVL	-14 / -7	2	Partial capture
10-14 16:12	40m	-14 / -	YL3CW	- / -	4	Partial capture
10-14 16:07	40m	-16 / -	YL3CW	- / -	3	Partial capture
10-14 16:01	40m	-14 / -19	YL3CW	-5 / -20	5	✓ Full exchange observed
10-13 16:35	40m	- / -	F4PCM	-19 / -	2	✓ Closing fragment
10-13 16:22	40m	- / -5	PD5BT	-15 / -	4	Partial capture
10-10 13:16	40m	- / -9	II5GG	-17 / -	3	Partial capture
10-10 13:12	40m	- / -4	PE9JAN	-14 / -	4	✓ Closing fragment
10-10 13:07	40m	- / -	IU2THY	-3 / -	3	Partial capture
10-06 16:51	40m	- / -11	HA1BF	-10 / -	2	✓ Closing fragment
10-06 16:50	40m	- / -	DJ1TU	-5 / -	6	Partial capture
10-06 16:43	40m	-14 / -	EX7CQ	- / -	7	Partial capture
10-06 16:35	40m	- / -4	DL6CMF	-2 / -	4	✓ Closing fragment
10-06 16:34	40m	- / -	9A4ZM	-2 / -	2	Partial capture
10-06 16:30	40m	-9 / -16	UA3QNA	-7 / -3	4	✓ Full exchange observed
10-06 16:16	40m	-12 / -13	YO3JW	-2 / -23	8	Partial capture
10-03 16:58	40m	-17 / -	YO4GIY	- / -	2	Partial capture
10-01 17:17	40m	-14 / -1	G8KHF	-13 / -	2	Partial capture
10-01 17:11	40m	-13 / -6	YO2CK	-2 / -20	8	✓ Full exchange observed
09-26 14:14	40m	- / -9	DL4PY	-16 / -	2	✓ Closing fragment
09-26 13:42	40m	- / -	S55A	-12 / -	2	✓ Closing fragment
09-26 13:31	40m	- / +5	DK7ZT	-20 / -	2	✓ Closing fragment
09-26 13:29	40m	- / -13	G0RVY	-13 / -	2	Partial capture
09-22 16:44	40m	-19 / -8	OT7K	+5 / -	3	✓ Closing observed
09-12 17:07	40m	- / +4	PA3EWP	+4 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
170345 +10 1284  F1DOA HA7TM JN97
170400 -15 1284  HA7TM F1DOA -14
170415 +10 1285  F1DOA HA7TM R-15 (x2)
170500 -17 1284  HA7TM F1DOA RR73
170515  +9 1284  F1DOA HA7TM 73
170530 -14 1284  CQ F1DOA JN08 (x2)
170745 -11  347  F1DOA DL3IAK JN49
170800 -17 1284  CQ F1DOA JN08                         a1
170815 -14  346  F1DOA DL3IAK JN49
170845 -12 1115  F1DOA ON7YC JO20
170900 -15 1284  ON7YC F1DOA -17
170915 -12 1115  F1DOA ON7YC R-08 (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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