SP8NR — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: KO12

Receiver-side FT8 activity involving SP8NR, decoded by SO8OO in southeastern Poland. 1,061 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 28 UTC dates in the available aggregate history. Observed between 2026-07-15 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 1,061 FT8 messages attributed to SP8NR as the transmitting token by decoded message structure across 28 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (65%), followed by 40 m (19%) and 160 m (11%). Most decodes (100%) fell within the six-hour window 18:00-00:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (84%); the estimated median was +2.6 dB.

Overview

1,061

Messages attributed

UTC dates decoded

114

Active 15-min windows

+2.6 dB

Estimated median S/N

Bands

160m · 115 80m · 687 60m · 5 40m · 204 20m · 50

First attributed message: 2026-07-15
Last attributed message: 2026-09-20 20:17 UTC

Observed FT8 message patterns

Attributed sample: 1,061 messages
Active dates: 28 UTC dates
Estimated median S/N: +2.6 dB
Estimated 10th-90th percentile: -12 to +11 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 61, moderate (-15 to -9 dB) 108, strong (≥ -8 dB) 892.

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 SP8NR in decoded directed-looking exchanges:

BG4OOO · China ×2 RN6MA · European Russia ×2 DL1IP · Fed. Rep. of Germany ×2 DL9KM · Fed. Rep. of Germany ×2 E70SZ · Bosnia-Herzegovina ×2 F1PBZ · France ×2 RK9UM · Asiatic Russia ×2 HA3GX · Hungary ×2 RW3ZR · European Russia ×2 UA3FH · European Russia ×2 7Z1MM · Saudi Arabia A61QQ · United Arab Emirates

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 SP8NR

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: KO12 · 650 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 297 km (approx.)
Last such locator decoded: 2026-09-20 20:16 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	SP8NR S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 20:16	160m	+1 / -	RI1FJZ	- / -17	4	✓ Closing fragment
09-20 18:32	160m	+1 / -	RI1FJZ	- / -	4	Partial capture
09-04 22:48	160m	+8 / -	RI1FJL	- / -17	3	Partial capture
09-04 22:31	160m	0 / -	RI1FJL	- / -	2	Partial capture
09-04 22:25	160m	+13 / -	RI1FJL	- / -	4	Partial capture
09-04 22:18	160m	+5 / -	RI1FJL	- / -	2	Partial capture
09-04 22:09	160m	+8 / -	RI1FJL	- / -	6	Partial capture
09-04 22:06	160m	+10 / -	RI1FJL	- / -	2	Partial capture
09-03 23:03	160m	+5 / -	RI1FJL	- / -	21	Partial capture
09-03 22:51	160m	-2 / -	RI1FJL	- / -	5	Partial capture
09-03 22:45	160m	+8 / -	RI1FJL	- / -	5	Partial capture
09-03 22:24	160m	+2 / -	RI1FJL	- / -	21	Partial capture
09-03 22:21	160m	0 / -	RI1FJL	- / -	2	Partial capture
09-03 22:17	160m	+1 / -	VK6IR	- / -	2	Partial capture
09-03 22:15	160m	+2 / -	RI1FJL	- / -	3	Partial capture
09-03 22:06	160m	-4 / -	RI1FJL	- / -	8	Partial capture
09-03 22:05	160m	-4 / -	VK6IR	- / -	2	Partial capture
09-03 21:57	160m	+2 / -	RI1FJL	- / -	2	Partial capture
09-03 19:13	160m	0 / -4	SP3IBS	+3 / -	5	✓ Full exchange observed
09-03 19:09	160m	-8 / -	RA8AO	- / -21	6	✓ Closing fragment
08-31 23:24	40m	-23 / -13	HI8J	-8 / -5	3	✓ Full exchange observed
08-31 23:11	40m	-18 / -	OA4ENG	- / -	2	Partial capture
08-30 20:50	40m	- / -14	G7RCQ	-14 / -	2	Partial capture
08-30 20:37	40m	-15 / +2	E70SZ	-2 / -5	5	✓ Full exchange observed
08-30 20:37	40m	- / -1	IK2RZQ	+5 / -	3	✓ Closing fragment
08-30 20:35	40m	-15 / +3	DK8CX	-2 / 0	4	✓ Full exchange observed
08-30 20:32	40m	-18 / -6	PE1NPS	+2 / -	4	✓ Closing observed
08-30 20:27	40m	- / +9	DL6NAC	+4 / -	3	✓ Closing fragment
08-29 20:01	60m	-18 / -	HB040A	- / -	4	Partial capture
08-29 19:33	80m	-4 / -	VK4XK	- / -	10	Partial capture
08-27 23:16	80m	+7 / -	KC7EFP	- / -	3	Partial capture
08-27 23:13	60m	- / -7	S56P	-3 / -	3	✓ Closing fragment
08-27 22:57	40m	- / 0	DL9KM	-8 / -	2	✓ Closing fragment
08-27 22:54	40m	- / +3	EB3JT	-12 / -	3	✓ Closing fragment
08-27 20:41	80m	-6 / -	RI1FJL	- / -15	5	Partial capture
08-27 20:33	80m	-4 / -	RI1FJL	- / -	5	Partial capture
08-27 20:27	80m	-12 / -	RI1FJL	- / -	9	Partial capture
08-27 20:16	80m	-18 / -	RI1FJL	- / -	4	Partial capture
08-23 23:08	40m	- / -10	F1PBZ	-4 / -	2	✓ Closing fragment
08-23 21:51	20m	- / -21	YT1DDL	-17 / -	2	Partial capture
08-23 21:45	20m	- / -15	VE3NVK	-8 / -	4	Partial capture
08-23 21:08	20m	- / -5	JN4MIV	-10 / -	2	Partial capture
08-22 20:11	20m	- / +2	F5RRS	+1 / -	3	✓ Closing fragment
08-20 21:46	20m	-8 / -	A92AE	- / -4	2	Partial capture
08-20 21:44	20m	-2 / -	JA4LAO	- / -18	2	Partial capture
08-20 21:40	20m	-10 / -	VK2WAJ	- / -20	6	✓ Closing fragment
08-20 21:39	20m	-7 / -21	JF1UVJ	-8 / +2	4	✓ Full exchange observed
08-20 21:37	20m	-10 / -	JH8SIT	- / -7	4	✓ Closing fragment
08-20 21:35	20m	-9 / -	BH4THI	- / -16	3	✓ Closing fragment
08-20 21:31	20m	-7 / -	BH8NNU	- / -13	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
224845 +11 1470  RI1FJL SP8NR KO12 (x2)
175015 +10 1864  RI1FJZ SP8NR KO12 (x13)

40m

UTC    dB Audio  Message
204000  -1 1854  SP8NR E70SZ JN84 (x3)
204300 -20 1088  SP8NR SP6HT R-08
204415 -15 1854  CQ SP8NR KO12
205000 -14 2416  SP8NR G7RCQ IO91 (x2)
231145 -18 2235  OA4ENG SP8NR KO12 (x2)
231915 -22 2050  9V1YC SP8NR 73
232100  -8  490  SP8NR OD5ZZ RR73
232430  -9 2553  SP8NR HI8J -13
232445 -23 1938  HI8J SP8NR R-05
232500  -7 2552  SP8NR HI8J RR73
232715 -24 1938  KP4DVM SP8NR KO12

80m

UTC    dB Audio  Message
231700  +6 2144  KC7EFP SP8NR KO12 (x2)
192945  +2 1716  UA0ACG SP8NR KO12
193300  +0 1716  VK4XK SP8NR KO12 (x10)
201630  +2 1255  SP1905MFK SP8NR KO12
201700  +4 1255  <HB040A> SP8NR KO12

60m

UTC    dB Audio  Message
214100 -14  701  SP8NR OJ0JR RR73
231315  -3 2027  SP8NR S56P JN76 (x3)
200100 -19 1786  <HB040A> SP8NR KO12 (x4)
200800 -16 1279  <...> SP8NR KO12
200915 -12  913  SP8NR IK3/UY7LA -07

10m

UTC    dB Audio  Message
115230 -24 1665  SP8NR EA3EDU JN01 (x2)
135330  -8  926  SP8NR A61QQ -03 (x2)
150215 -22 1781  SP8NR EA8UP RR73
114600 -19 1066  SP8NR 7Z1MM RR73

20m

UTC    dB Audio  Message
201100  -1 1760  SP8NR F5RRS JN36 (x3)
210315 -19 2284  SP8NR W2CG FM14
210815 -17 1541  SP8NR JR2PZX PM94
210815 -11  716  SP8NR JN4MIV PM74 (x2)
211545 -20 1227  SP8NR JQ7GAD 73
214515  -8 1942  SP8NR VE3NVK FN25 (x4)
215145 -21 1943  SP8NR YT1DDL R-21 (x2)
221815 -10 1489  SP8NR JY5IB 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.

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