SP7NC — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: JO91

Receiver-side FT8 activity involving SP7NC, decoded by SO8OO in southeastern Poland. 720 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 62 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-07.

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 720 FT8 messages attributed to SP7NC as the transmitting token by decoded message structure across 62 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (50%), followed by 80 m (31%) and 20 m (11%). Most decodes (64%) fell within the six-hour window 21:00-03:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (66%); the estimated median was -2.1 dB.

Overview

720

Messages attributed

UTC dates decoded

212

Active 15-min windows

-2.1 dB

Estimated median S/N

Bands

160m · 8 80m · 224 60m · 54 40m · 358 20m · 76

First attributed message: 2026-06-07
Last attributed message: 2026-09-07 08:47 UTC

Observed FT8 message patterns

Attributed sample: 720 messages
Active dates: 62 UTC dates
Estimated median S/N: -2.1 dB
Estimated 10th-90th percentile: -18 to +12 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 114, moderate (-15 to -9 dB) 131, strong (≥ -8 dB) 475.

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 SP7NC in decoded directed-looking exchanges:

W4XM · United States ×2 DK0ACI · Fed. Rep. of Germany ×2 SP1ZMO · Poland ×2 WA2LAN · United States ×2 VA1TTY · Canada ×2 YB5QZ · Indonesia ×2 9K2GR · Kuwait DL1TS · Fed. Rep. of Germany HZ1OL · Saudi Arabia PS8ARP · Brazil IW4DXW · Italy 4Z4MU · Israel

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 SP7NC

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: JO91 · 557 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 262 km (approx.)
Last such locator decoded: 2026-09-07 08:47 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	SP7NC S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-15 01:53	40m	- / -9	WA2LAN	-1 / -	3	✓ Closing fragment
09-15 00:46	40m	- / -15	KQ0J	-12 / -	2	✓ Closing fragment
09-14 02:10	40m	- / -12	K5EJ	-11 / -	2	✓ Closing fragment
09-14 00:44	40m	- / -22	W2RLW	-10 / -	2	Partial capture
09-13 23:52	40m	- / -7	AA1AC	-10 / -	2	✓ Closing fragment
09-13 22:42	40m	- / -18	BD3MN	-18 / -	2	✓ Closing fragment
09-13 02:53	40m	- / -	WP4TUN	-17 / -	2	✓ Closing fragment
09-13 01:22	60m	- / -18	HI3A	-4 / -	3	Partial capture
09-12 00:45	40m	- / -2	WC0W	+5 / -	3	✓ Closing fragment
09-11 02:50	40m	- / -11	WA2VNV	-13 / -	6	Partial capture
09-11 01:53	40m	- / -22	VE3WMI	-23 / -	2	Partial capture
09-11 00:50	40m	- / -4	5B4AMH	+8 / -	2	Partial capture
09-11 00:17	40m	- / -13	N1SV	0 / -	2	✓ Closing fragment
09-11 00:07	40m	- / -23	K4KL	-13 / -	2	✓ Closing fragment
09-10 23:04	40m	- / -15	WB8CQV	+4 / -	2	✓ Closing fragment
09-10 21:45	40m	- / -15	BD4IAA	-19 / -	2	Partial capture
09-10 02:56	40m	- / -15	NF9V	+6 / -	3	✓ Closing fragment
09-10 00:28	40m	- / -	N3XL	-21 / -	4	Partial capture
09-09 02:49	60m	- / -13	TA2K	-12 / -	4	✓ Closing fragment
09-08 04:52	40m	- / -11	ZL2CA	-12 / -	2	✓ Closing fragment
09-08 02:11	60m	- / -17	WA2LAN	-14 / -	3	✓ Closing fragment
09-07 08:47	40m	-14 / -	VK3ZLT	- / -	2	Partial capture
09-07 08:05	40m	-10 / -	HS7WMU	- / -	2	Partial capture
09-07 07:16	40m	-12 / -	WB2REM	- / -	2	Partial capture
09-07 05:26	60m	-2 / -	CO7HH	- / -	4	Partial capture
09-07 04:02	40m	- / -9	AA2QL	-20 / -	2	Partial capture
09-07 01:14	40m	- / -18	YV5KG	-6 / -	4	✓ Closing fragment
09-07 00:06	40m	-17 / -11	WT2J	-12 / -	5	✓ Closing observed
09-06 05:37	40m	-1 / -	EA8SG	- / -	2	Partial capture
09-05 23:58	40m	- / -16	KD1AB	-12 / -	5	✓ Closing fragment
09-05 23:40	40m	- / -10	HI8JSA	-2 / -	4	Partial capture
09-05 06:03	40m	-4 / -	K9FN	- / -	2	Partial capture
09-05 04:45	60m	+2 / -	PV8AJ	- / -	3	Partial capture
09-05 01:48	40m	- / -18	WT3Q	-8 / -	4	✓ Closing fragment
09-05 00:37	40m	- / -23	VE3RDI	-7 / -	2	Partial capture
09-04 04:06	40m	-4 / -	W4EMJ	- / -	2	Partial capture
09-04 03:14	40m	-16 / -	W4OEP	- / -	2	Partial capture
09-04 02:46	40m	- / -13	KK7UXY	-6 / -	2	✓ Closing fragment
09-04 01:59	40m	- / -13	WB4TDH	-12 / -	2	✓ Closing fragment
09-03 06:46	40m	-7 / -	N9RD	- / -	2	Partial capture
09-03 03:56	40m	- / -22	KY2J	-21 / -	3	Partial capture
09-03 01:07	40m	- / -16	W1BS	-13 / -	2	✓ Closing fragment
09-03 00:38	40m	- / -9	NX7U	+3 / -	2	✓ Closing fragment
09-02 20:27	40m	-22 / -	TA3GO	- / -11	2	Partial capture
09-02 01:23	40m	- / -17	KF4VTT	-18 / -	2	Partial capture
09-02 00:24	40m	- / -14	UN9LDA	-6 / -	2	✓ Closing fragment
09-01 03:22	40m	- / -13	NI0G	0 / -	3	✓ Closing fragment
09-01 02:08	40m	- / -10	WW2N	-8 / -	2	✓ Closing fragment
09-01 01:51	40m	- / -15	K3JGJ	-16 / -	2	✓ Closing fragment
08-31 08:20	40m	-16 / -	HB10GBT	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
235245 -11 2572  SP7NC AA1AC -07 (x2)
004430  -9  432  SP7NC W2RLW -22 (x2)
012030 -15 2025  SP7NC KD3BVL RR73
021000 -12 2290  SP7NC K5EJ -12 (x2)
233945 -13 2468  SP7NC N3TBB RR73
004615 -12 1658  SP7NC KQ0J -15 (x2)
015345  -2  295  SP7NC WA2LAN -09 (x3)
034545 -14 1171  SP7NC KB4UF RR73
040830 -11  532  SP7NC WZ4K RR73

60m

UTC    dB Audio  Message
052700  +4 1533  CO7HH SP7NC JO91 (x2)
021145 -14  837  SP7NC WA2LAN -17 (x3)
033430  -7  527  SP7NC K4KEW -11
024930 -11 1331  SP7NC TA2K -13 (x4)
025000 -20 1849  SP7NC W1ARY -13
012215  -5  431  SP7NC HI3A -18 (x3)
022745 -12 1304  SP7NC VY2JGC -09

20m

UTC    dB Audio  Message
054800  -1 2854  SP7NC 7Z1MM -21 (x2)
091115  -6 2641  SP7NC TA2CAX -09 (x4)
094330  +4  514  SP7NC IU3WOH JN65
211930  -6 2827  SP7NC BG4UVR R-06
220300 -13 1871  SP7NC CE4KM -09 (x2)
020600  -6 1979  SP7NC 9K2RT -06 (x4)
172745 -13 2308  SP7NC BG5GEB -12

80m

UTC    dB Audio  Message
023930  -6 2499  VA1TTY SP7NC JO91 (x3)
030115  -2 2500  SP7NC VA1TTY -08
030130 +12 2501  VA1TTY SP7NC R-12
030145 -10 2500  SP7NC VA1TTY RR73
030200 +12 2501  VA1TTY SP7NC R-12 (x3)
031915 -11 2500  SP7NC VA1TTY -10
031930  +2 2501  VA1TTY SP7NC R-12 (x3)
032045  -4 2501  SP7NC VA1TTY RR73
034330  -3 1500  N1PTM SP7NC JO91

10m

UTC    dB Audio  Message
085615 -22 1668  SP7NC RX3ASQ KO95 (x3)
114045 -15 1141  SP7NC <...> +00
222930 -21 1761  SP7NC TA2LG -13
190700 -13 2371  SP7NC DL1TS JN58 (x3)
103800 -21 1160  SP7NC TA7D +03
202600 -20 1610  SP7NC PS8ARP +04 (x2)
070600 -22 2129  SP7NC EX8ABB -16
103630  -9 2164  SP7NC 9K2GR RR73
120215 -18 1138  SP7NC HZ1OL RR73
111800 -11  780  SP7NC TN8GD -01

160m

UTC    dB Audio  Message
215630 -11 1311  YB5QZ SP7NC JO91 (x3)
024330 -13 1937  XE1RBV SP7NC JO91 (x3)
211445 -14 1122  SP7NC IW4DXW -16
211500 -12 1134  IW4DXW SP7NC R-17
211515 -13 1119  SP7NC IW4DXW RR73
211530  -7 1134  IW4DXW SP7NC 73

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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