SM0NJO — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Sweden Most frequent locator attributed to this token: JO99

Receiver-side FT8 activity involving SM0NJO, decoded by SO8OO in southeastern Poland. 209 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-09-20.

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 209 FT8 messages attributed to SM0NJO as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (81%), followed by 80 m (16%) and 40 m (1%). Most decodes (70%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (74%); the estimated median was -5 dB.

Overview

209

Messages attributed

UTC dates decoded

Active 15-min windows

-5 dB

Estimated median S/N

Bands

80m · 33 60m · 170 40m · 3 20m · 3

First attributed message: 2026-06-13
Last attributed message: 2026-09-20 05:28 UTC

Observed FT8 message patterns

Attributed sample: 209 messages
Active dates: 4 UTC dates
Estimated median S/N: -5 dB
Estimated 10th-90th percentile: -12 to +4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 46, strong (≥ -8 dB) 155.

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 SM0NJO in decoded directed-looking exchanges:

5Q1X · Denmark 8S2A · Sweden C31CT · Andorra CN8DN · Morocco DH3YAK · Fed. Rep. of Germany DJ1PQ · Fed. Rep. of Germany DK7OG · Fed. Rep. of Germany DL1UDO · Fed. Rep. of Germany DL4YDR · Fed. Rep. of Germany DL8UD · Fed. Rep. of Germany DL9KM · Fed. Rep. of Germany DM8ET · Fed. Rep. of Germany

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 SM0NJO

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: JO99 · 118 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,078 km (approx.)
Last such locator decoded: 2026-09-20 05:28 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	SM0NJO S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 05:25	60m	-12 / -	VE2CKW	- / -	4	Partial capture
09-20 04:13	60m	-7 / -	VE2CKW	- / -	2	Partial capture
09-20 03:56	60m	-5 / -	WX7P	- / -15	11	✓ Closing fragment
09-20 03:55	60m	-12 / -	VE2CKW	- / -	2	Partial capture
09-20 03:32	80m	- / -	MM0ABM	-8 / -	2	Partial capture
09-20 03:31	80m	+5 / -18	HI8R	-10 / +3	7	✓ Full exchange observed
09-20 03:14	60m	+3 / -	KP4U	- / -	3	Partial capture
09-20 03:12	60m	+2 / -	VE2CKW	- / -	2	Partial capture
09-20 03:06	60m	0 / -	VE2CKW	- / -	6	Partial capture
09-20 03:03	60m	+4 / -	J88IH	- / -15	3	✓ Closing fragment
09-20 03:01	60m	+6 / -	KP4U	- / -	2	Partial capture
09-20 02:59	60m	+2 / -	NP3RK	- / -9	5	✓ Closing fragment
09-20 02:58	60m	+2 / -	VE2CKW	- / -	3	Partial capture
09-19 20:21	60m	-4 / -7	C31CT	-2 / -	6	✓ Full exchange observed
09-19 20:13	80m	0 / -	5Z4AB	- / -13	2	Partial capture
09-19 20:09	80m	+6 / -	5Z4AB	- / -	2	Partial capture
09-19 20:03	60m	-1 / -	TF1EIN	- / -	3	Partial capture
09-19 19:59	60m	-7 / -	EA5JFO	- / -15	3	✓ Closing fragment
09-19 19:56	60m	-12 / -6	PA0GSP	-4 / +9	6	✓ Full exchange observed
09-19 19:48	60m	-6 / -	EA9UV	- / -4	3	✓ Closing fragment
09-19 18:10	60m	-7 / -9	SP4MPF	-14 / +4	6	✓ Full exchange observed
09-19 18:09	60m	-9 / -	CN8DN	-17 / -4	5	✓ Closing observed
09-19 17:42	80m	+3 / -	ZL2BX	- / -	7	Partial capture
09-19 17:35	80m	-17 / -	KH8WW	- / -	5	Partial capture
09-19 17:31	80m	-7 / -	BA5CW	- / -	3	Partial capture
09-19 17:24	80m	-8 / -	ZL2BX	- / -	6	Partial capture
09-19 17:10	60m	-6 / -	DL9KM	- / -5	2	✓ Closing fragment
09-19 17:09	60m	+2 / -6	F1DZP	-11 / -4	4	✓ Full exchange observed
09-19 17:08	60m	-3 / -5	DH3YAK	-10 / +7	5	✓ Full exchange observed
09-19 17:05	60m	-5 / -	DL4YDR	-15 / +5	3	✓ Closing observed
09-19 17:05	60m	+2 / -5	F1PBZ	-18 / -6	6	✓ Full exchange observed
09-19 17:03	60m	-2 / -5	IZ2ACM	-16 / 0	6	✓ Full exchange observed
09-19 17:02	60m	-3 / -17	SP9DPI	-14 / -12	4	✓ Full exchange observed
09-19 17:01	60m	-2 / -	OH2BYJ	+6 / -	5	✓ Full exchange observed
09-19 16:58	60m	-2 / -	DJ1PQ	-14 / -3	6	✓ Full exchange observed
09-19 16:56	60m	0 / -	OH3KT	0 / -	5	✓ Full exchange observed
09-19 16:55	60m	+2 / -	OE5DML	-16 / -12	4	✓ Closing observed
09-19 16:55	60m	+2 / +4	OZ1SMB	-5 / +6	5	✓ Full exchange observed
09-19 16:53	60m	-3 / -	5Q1X	- / +3	3	✓ Closing fragment
09-19 16:52	60m	0 / -1	OE6BHD	+6 / +6	5	✓ Full exchange observed
09-19 15:58	60m	-4 / -	TM60LOUV	- / -	2	Partial capture
09-19 15:54	60m	-6 / -16	EU6MM	+12 / -	8	✓ Full exchange observed
09-19 15:48	40m	-7 / -	A99AA	- / -	2	Partial capture
08-06 21:38	60m	-8 / -	CT2GQA	- / -4	3	Partial capture
08-06 19:54	60m	-11 / -	C31KC	- / -	5	Partial capture
08-06 19:47	60m	-6 / -	C31KC	- / -	6	Partial capture
08-06 19:41	60m	-12 / -	8S7DL	- / -	2	Partial capture
08-06 19:28	60m	-8 / +2	8S2A	-14 / -	5	✓ Full exchange observed
08-06 19:12	80m	-3 / -	JF8QNF	- / -	3	Partial capture
08-06 19:05	60m	-4 / -	DK7OG	- / -15	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
035745  -9 2331  WX7P SM0NJO JO99 (x9)
041345  -6 2331  VE2CKW SM0NJO JO99 (x6)

80m

UTC    dB Audio  Message
174430  +5  868  ZL2BX SM0NJO JO99 (x2)
200900 +14 2597  5Z4AB SM0NJO JO99 (x4)
033100  +6 2297  HI8R SM0NJO JO99
033115 -10 1430  SM0NJO HI8R -18
033130  +8 2297  HI8R SM0NJO R+03
033145 -10 1431  SM0NJO HI8R -18
033200  +4 2297  HI8R SM0NJO R+03
033215  -9 1430  SM0NJO HI8R RR73
033230  +3 2297  HI8R SM0NJO 73
033245 -11  541  SM0NJO MM0ABM IO75 (x2)

40m

UTC    dB Audio  Message
154830  -7 2594  A99AA SM0NJO JO99 (x2)
155015  -9 2594  YB2URA SM0NJO JO99

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.

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