F4NJO — 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 F4NJO, decoded by SO8OO in southeastern Poland. 157 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, across 6 UTC dates in the available aggregate history. Observed between 2026-10-31 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 157 FT8 messages attributed to F4NJO 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 (37%), followed by 60 m (34%) and 80 m (29%). Several six-hour UTC windows tied for the largest share (56%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

157

Messages attributed

UTC dates decoded

Active 15-min windows

-13 dB

Estimated median S/N

Bands

80m · 46 60m · 53 40m · 58

First attributed message: 2026-10-31
Last attributed message: 2026-11-05 07:15 UTC

Observed FT8 message patterns

Attributed sample: 157 messages
Active dates: 6 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -19 to -2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 57, moderate (-15 to -9 dB) 49, 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 F4NJO in decoded directed-looking exchanges:

DK7ZT · Fed. Rep. of Germany ×2 DF4NR · Fed. Rep. of Germany 9A4ZM · Croatia DH2NJS · Fed. Rep. of Germany ES6DO · Estonia G8VJU · England IN3LHF · Italy M0BEW · England OE5ROR · Austria PD4SN · Netherlands RY7G · European Russia UR4QWW · Ukraine

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 F4NJO

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 · 89 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,063 km (approx.)
Last such locator decoded: 2026-11-05 07:15 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	F4NJO S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-05 07:14	40m	- / -	DL6UM	-2 / -	6	Partial capture
11-05 07:10	40m	- / -14	ES6DO	-2 / -	2	✓ Closing fragment
11-05 07:06	40m	- / -	UT4PA	+7 / -	2	Partial capture
11-05 07:05	40m	-5 / -	SP6AXW	- / -7	2	Partial capture
11-05 06:15	60m	- / -12	SQ7LQT	0 / -	4	Partial capture
11-05 03:03	80m	- / -	S50XX	+4 / -	8	Partial capture
11-05 02:58	80m	-4 / -15	OZ6NC	-18 / +8	4	Partial capture
11-05 02:26	60m	- / -	LZ2VQ	-1 / -	3	Partial capture
11-05 02:26	60m	-12 / -	F4CQS	- / -	2	Partial capture
11-05 02:23	60m	-18 / -	SV4FFK	-24 / -	3	✓ Closing observed
11-05 02:21	60m	-9 / -	WD4OBP	- / -	2	Partial capture
11-04 19:27	60m	-14 / -15	IS0LAY	-12 / -	4	Partial capture
11-04 19:26	60m	-20 / -	SP2EWQ	- / -	2	Partial capture
11-04 19:24	60m	-16 / -	M1CVK	- / -	2	✓ Closing fragment
11-04 19:18	60m	- / -	ON7GB	+2 / -	2	Partial capture
11-04 19:17	60m	-17 / -6	SM0EJR	-10 / -	3	Partial capture
11-04 18:04	60m	- / -	LZ2VQ	-14 / -	3	Partial capture
11-04 18:04	60m	- / -	ON7GB	+4 / -	2	Partial capture
11-04 18:03	60m	-17 / -8	LZ911TD	-13 / -	3	Partial capture
11-04 17:56	60m	- / -	9A4ZM	-5 / -	2	Partial capture
11-04 17:56	60m	- / -	ES6DO	-2 / -	2	Partial capture
11-04 17:56	60m	- / -	LZ2VQ	-6 / -	2	Partial capture
11-04 17:55	60m	- / -	PC2J	-12 / -	3	Partial capture
11-04 17:46	80m	-21 / -13	OZ5ABO	-18 / -	2	Partial capture
11-04 17:44	80m	-18 / -7	LA2GCA	-21 / -	2	✓ Closing observed
11-04 17:41	80m	-15 / -15	OK1AY	+4 / -	3	Partial capture
11-04 15:52	40m	-13 / -	PD4SN	-9 / -	2	✓ Closing observed
11-04 15:49	40m	- / -	DL7ACA	-2 / -	4	Partial capture
11-04 15:47	40m	- / -	HA7TM	+2 / -	2	Partial capture
11-04 15:45	40m	-14 / -4	G8VJU	-10 / +4	5	✓ Full exchange observed
11-04 15:43	40m	- / -	DL7ACA	-2 / -	3	Partial capture
11-04 15:43	40m	- / -	ON3PDM	-10 / -	2	Partial capture
11-04 15:38	40m	-18 / -6	DH2NJS	-14 / +2	8	✓ Full exchange observed
11-04 15:37	40m	- / -	PD1AC	-15 / -	4	Partial capture
11-04 15:36	40m	- / -	DL7ACA	+6 / -	6	Partial capture
11-04 15:11	80m	- / -24	DM5CF	0 / -	2	Partial capture
11-04 09:33	40m	-13 / +7	OE5ROR	+3 / -	4	✓ Full exchange observed
11-04 09:28	40m	- / -	S53AK	-7 / -	6	Partial capture
11-04 09:26	40m	- / -	PA7ZZ	-19 / -	7	Partial capture
11-03 14:19	40m	- / +8	DK7ZT	-17 / -	3	Partial capture
11-03 14:15	60m	- / -	DD6ZV	-8 / -	8	Partial capture
11-03 11:19	40m	- / -	IK5DET	-12 / -	2	Partial capture
11-03 11:16	40m	- / -14	SP9MOC	-8 / -	2	Partial capture
11-03 11:16	40m	- / -	OE8PIT	-2 / -	4	Partial capture
11-03 05:32	80m	- / -	DJ0MAB	+7 / -	5	✓ Closing fragment
11-03 05:32	80m	- / -	DL1BBO	-16 / -	2	Partial capture
11-03 05:32	80m	- / -	DL6UM	+8 / -	8	Partial capture
11-03 05:12	80m	0 / -16	DO1FZL	-6 / +6	4	✓ Full exchange observed
11-03 05:08	80m	-8 / -	F5PBG	- / -7	2	Partial capture
11-03 05:07	80m	- / -	DF4WQ	-3 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
071015  +0  659  F4NJO ES6DO -14 (x2)
071145  -6  621  F1JUM F4NJO JN39
071215  -7  692  HA7TM F4NJO JN39
071245 -10  692  CQ F4NJO JN39
071330 -13  983  RU3DX F4NJO JN39
071400  +9  691  F4NJO UT4PA KO20
071430 -17 1104  EA6AJW F4NJO JN39
071430  +0 1009  F4NJO DL6UM JO60 (x2)
071530  -7  743  LB3RE F4NJO JN39
071530  -4 1008  F4NJO DL6UM JO60 (x4)

60m

UTC    dB Audio  Message
022415 -24 1765  F4NJO SV4FFK RR73
022600  -9 1660  F4CQS F4NJO JN39
022630 -15 1660  CQ F4NJO JN39                         a1
022645  +0 2473  F4NJO LZ2VQ KN23 (x3)
022800 -16 1661  F4CQS F4NJO JN39
060200 -16 1276  9A7V F4NJO JN39
060430 -17 1601  SP9HZW F4NJO JN39
061000 -15 1692  F4IIX F4NJO JN39
061445 -18 1628  SP9SOS F4NJO JN39
061530  -1 2333  F4NJO SQ7LQT -12 (x4)

80m

UTC    dB Audio  Message
021815  +0 1438  ON1JP F4NJO JN39
021845  -3 1438  CQ F4NJO JN39                         a1
025845 -22 1317  F4NJO OZ6NC -15
025930  -2 1318  OZ6NC F4NJO R+08
025945 -14 1316  F4NJO OZ6NC -15
030000  -5 1318  OZ6NC F4NJO R+07
030300  +2 1717  F4NJO S50XX JN65
030300  -8 2216  F4NJO IQ4JO JN63
030330  +0 1717  F4NJO S50XX JN65 (x7)

160m

UTC    dB Audio  Message
172500  +1 1202  F4NJO DF4NR +01 (x2)
191200  -5 1757  F4NJO DK7ZT -18 (x7)

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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