F1JIO — 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: JN39

Receiver-side FT8 activity involving F1JIO, decoded by SO8OO in southeastern Poland. 397 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 27 UTC dates in the available aggregate history. Observed between 2026-07-30 and 2026-10-17.

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 397 FT8 messages attributed to F1JIO as the transmitting token by decoded message structure across 27 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (44%), followed by 20 m (38%) and 80 m (7%). Several six-hour UTC windows tied for the largest share (80%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (77%); the estimated median was -2 dB.

Overview

397

Messages attributed

UTC dates decoded

Active 15-min windows

-2 dB

Estimated median S/N

Bands

160m · 26 80m · 29 60m · 15 40m · 176 20m · 151

First attributed message: 2026-07-30
Last attributed message: 2026-10-17 22:42 UTC

Observed FT8 message patterns

Attributed sample: 397 messages
Active dates: 27 UTC dates
Estimated median S/N: -2 dB
Estimated 10th-90th percentile: -12 to +6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 82, strong (≥ -8 dB) 306.

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 F1JIO in decoded directed-looking exchanges:

DK7ZT · Fed. Rep. of Germany ×3 9A4ZM · Croatia ×2 9A9N · Croatia ×2 F4SNF · France ×2 YO6LM · Romania ×2 IK4LZH · Italy DK5WO · Fed. Rep. of Germany F5MYK · France HA5AO · Hungary IK0XBX · Italy IW5ABF · Italy IZ3GOG · Italy

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 F1JIO

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: JN39 · 242 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,063 km (approx.)
Last such locator decoded: 2026-10-17 22:34 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	F1JIO S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-17 22:40	80m	+8 / -	9A4ZM	+10 / -4	3	Partial capture
10-17 22:39	80m	+12 / -	F6FHZ	- / -17	2	✓ Closing fragment
10-17 22:39	80m	+12 / -	SP6FME	+17 / -	2	Partial capture
10-17 22:37	80m	+13 / -	PE1NPS	- / +8	3	✓ Closing fragment
10-17 22:36	80m	+9 / -	DK7ZT	0 / -	4	✓ Closing observed
10-17 22:35	80m	- / -13	R2EA/P	+3 / -	2	Partial capture
10-17 22:34	80m	+8 / -	M7CWF	- / +2	3	✓ Closing fragment
10-17 22:29	80m	+4 / -	KP4AA	- / -	6	Partial capture
10-17 16:32	40m	-7 / -	HB9EKJ	- / 0	3	✓ Closing fragment
10-15 20:15	80m	+4 / -	HB3YPJ	- / -8	2	✓ Closing fragment
10-15 20:05	80m	-2 / -	SM4DDS	- / -	3	Partial capture
10-12 21:22	160m	-9 / -10	F5MYK	-18 / -2	4	✓ Full exchange observed
10-12 21:21	160m	- / -12	F5PZT	-5 / -	4	Partial capture
10-12 21:21	160m	-12 / +6	LA9JKA	-7 / -5	6	✓ Full exchange observed
10-12 21:17	160m	-2 / -	IK1BQD	-11 / -	5	Partial capture
10-12 21:17	160m	-4 / -4	IZ3GOG	+4 / +8	7	✓ Full exchange observed
10-12 21:14	160m	-12 / -11	OM2WQ	+10 / +3	7	✓ Full exchange observed
10-12 21:14	160m	-13 / +4	DK7ZT	-1 / -	6	✓ Full exchange observed
10-12 21:13	160m	-11 / -3	IK0XBX	-4 / -1	5	✓ Full exchange observed
10-12 21:10	160m	-6 / -1	DK5WO	-2 / +9	5	✓ Full exchange observed
10-12 20:23	60m	-2 / -	VE1YX	- / -	2	Partial capture
10-12 20:21	60m	+6 / -	G3TKT	-6 / +6	3	✓ Closing observed
10-12 20:21	60m	+6 / -	EB3JT	-10 / -	2	✓ Closing observed
10-12 20:19	60m	+5 / -	MM0JTV	- / 0	3	✓ Closing fragment
10-12 20:17	60m	+2 / -	YL3FW	- / +1	2	✓ Closing fragment
10-12 20:15	60m	+2 / -	VE1YX	- / -	3	Partial capture
10-12 20:10	80m	+15 / +4	GW4HZA	-10 / -5	5	✓ Full exchange observed
10-12 20:06	40m	- / -	EA1IOK	-8 / -	5	Partial capture
10-01 19:32	40m	-3 / -11	EA8FB	-16 / -7	4	✓ Full exchange observed
10-01 19:29	40m	-2 / -	MI7RDK	- / -5	4	✓ Closing fragment
09-29 21:14	160m	- / +4	LX1JX	-2 / -	2	✓ Closing fragment
09-29 21:07	160m	-14 / -	9A4ZM	- / +3	2	✓ Closing fragment
09-29 21:05	160m	-8 / -10	HA5AO	+13 / -1	4	✓ Full exchange observed
09-29 21:02	60m	-2 / -	MI0ULK	- / -	2	Partial capture
09-28 21:41	40m	+5 / -	JR1XIS	- / -	2	Partial capture
09-19 21:05	40m	-10 / -	DJ0MAB	+4 / -15	3	Partial capture
09-19 21:03	40m	-1 / -	IQ0AAI	- / -14	3	✓ Closing fragment
09-16 22:27	40m	-16 / 0	II9IAGM	-11 / -	3	✓ Closing observed
09-16 22:17	40m	-11 / -	HB9ELE	- / -	3	Partial capture
09-16 22:15	40m	-10 / -	YO6LM	- / -8	2	✓ Closing fragment
09-16 22:08	40m	-9 / -	LA2VLA	-15 / +3	5	✓ Closing observed
09-16 22:03	40m	-14 / -	IN3IZQ	- / -7	3	✓ Closing fragment
09-16 21:59	40m	-19 / -19	SV9QWC	-10 / -6	5	Partial capture
09-16 21:01	40m	-1 / -	OM3LU	- / -	3	✓ Closing fragment
09-05 22:14	40m	+2 / -	Z62NS	- / -	2	Partial capture
09-05 22:12	40m	+2 / -	AC8RJ	- / -	3	Partial capture
09-04 19:58	40m	+4 / -6	9A9N	-10 / 0	6	✓ Full exchange observed
09-03 22:17	40m	- / -	LZ2VQ	+8 / -	3	Partial capture
09-03 22:15	40m	+3 / -	BD8ENX	- / -6	3	✓ Closing fragment
09-03 22:14	40m	+8 / -	M7CWF	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
223630 +13  701  F5MXH F1JIO RR73
223645  +5  826  F1JIO DK7ZT +15
223700  +8  701  PE1NPS F1JIO +08
223715  -5  826  F1JIO DK7ZT +15 (x2)
223800  +9  701  DK7ZT F1JIO 73
223830 +19  701  PE1NPS F1JIO +03 (x2)
223915 +17  701  F1JIO SP6FME JO90
223930 +12  701  F6FHZ F1JIO -17 (x2)
224015 +10  697  F1JIO 9A4ZM JN86
224100 +12  701  SP6FME F1JIO +13
224200  +5  701  9A4ZM F1JIO -04 (x2)

40m

UTC    dB Audio  Message
193300 -16  983  F1JIO EA8FB -11
193315  -3  983  EA8FB F1JIO R-07 (x2)
193430  -9  983  F1JIO YO4NF -06
200630  -8  610  F1JIO EA1IOK IN62 (x5)
202700 -23 1375  RA5AD F1JIO 73
210900 -14 1874  LA7DMA F1JIO JN39
211315 -11 1511  BG0FQU F1JIO JN39
163215  -6 1389  HB9EKJ F1JIO JN39 (x3)

160m

UTC    dB Audio  Message
211945  -3 2708  IK1BQD F1JIO +11
212130 -12 1556  LA9JKA F1JIO JN39
212130  -5  751  F1JIO F5PZT -12 (x2)
212215 -22 2200  F1JIO F5MYK -10
212230  -8  751  F1JIO F5PZT -12
212230  -9 2200  F5MYK F1JIO R-02
212245  -8 1556  F1JIO LA9JKA +06
212245 -15 2200  F1JIO F5MYK RR73
212300  -3  751  F1JIO F5PZT -12
212300  -9 2200  F5MYK F1JIO 73
212315  -8 1556  F1JIO LA9JKA +06
212330 -14 2200  LA9JKA F1JIO R-05
212345  -6 1556  F1JIO LA9JKA RR73
212400  -9 2200  LA9JKA F1JIO 73

60m

UTC    dB Audio  Message
201545  +5 1171  VE1YX F1JIO JN39 (x3)
201745  +1 1258  YL3FW F1JIO R+01 (x2)
201930  +7  620  MM0JTV F1JIO JN39 (x3)
202130  +6  620  EB3JT F1JIO RR73
202145  -6  678  F1JIO G3TKT IO92
202145 -10  619  F1JIO EB3JT 73
202200  +4  620  G3TKT F1JIO +06 (x2)
202315  +1 1172  VE1YX F1JIO JN39 (x2)

20m

UTC    dB Audio  Message
083915  +0 2789  MI0AIH F1JIO JN39
084215 -12 2789  Z62NS F1JIO JN39 (x6)
151000 -15  990  F1JIO A41ZZ R-24
151445 -12 2788  LA5TTA F1JIO R-11 (x2)
151630 -10 2788  4O/SP6TID F1JIO JN39 (x3)
151915  -6 1689  F1JIO F5OYA/P +08 (x2)

10m

UTC    dB Audio  Message
134045  -6  489  F1JIO IK4LZH RR73

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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