SP9KR — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: JO90

Receiver-side FT8 activity involving SP9KR, decoded by SO8OO in southeastern Poland. 724 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 27 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-01.

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 724 FT8 messages attributed to SP9KR as the transmitting token by decoded message structure across 27 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (38%), followed by 40 m (25%) and 60 m (16%). Most decodes (50%) 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 (80%); the estimated median was +9.2 dB.

Overview

724

Messages attributed

UTC dates decoded

Active 15-min windows

+9.2 dB

Estimated median S/N

Bands

160m · 106 80m · 274 60m · 118 40m · 183 20m · 29 10m · 14

First attributed message: 2026-06-07
Last attributed message: 2026-10-01 03:38 UTC

Observed FT8 message patterns

Attributed sample: 724 messages
Active dates: 27 UTC dates
Estimated median S/N: +9.2 dB
Estimated 10th-90th percentile: -16 to +17 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 78, moderate (-15 to -9 dB) 69, strong (≥ -8 dB) 577.

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 SP9KR in decoded directed-looking exchanges:

DL9KM · Fed. Rep. of Germany ×3 RI1FJZ · Franz Josef Land ×2 TA1PB · European Turkey ×2 IZ3EAW · Italy PA0LDE · Netherlands PD1ADA · Netherlands SV7BAY · Greece TK5K · Corsica UR5FS · Ukraine UX2QX · Ukraine YU4FQN · Serbia 4X1UF · 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 SP9KR

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: JO90 · 374 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 208 km (approx.)
Last such locator decoded: 2026-10-01 03:37 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	SP9KR S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-01 03:37	60m	-5 / -	NV1U	- / -8	3	✓ Closing fragment
10-01 03:34	60m	-5 / -	KC3LVG	- / -	2	Partial capture
10-01 03:33	60m	-5 / -	ON5PH	-15 / -13	5	✓ Full exchange observed
10-01 03:31	60m	-4 / -	KE0L	- / -18	3	✓ Closing fragment
10-01 03:27	60m	-7 / -	W8FSM	- / -20	5	✓ Closing fragment
10-01 03:25	60m	-15 / -7	EA5IT	-8 / -4	5	✓ Full exchange observed
10-01 03:25	60m	-11 / -	OE5DML	-11 / +8	3	Partial capture
10-01 03:23	60m	-10 / -	KD8LOM	- / -21	3	✓ Closing fragment
10-01 03:21	60m	-5 / -	VA3GPL	- / -12	2	✓ Closing fragment
10-01 03:20	60m	-8 / -	OH3JF	+5 / +2	5	✓ Full exchange observed
10-01 03:18	60m	-6 / -	LZ936BA	- / -17	2	Partial capture
10-01 03:17	60m	-6 / -	F6FHZ	- / -17	2	✓ Closing fragment
10-01 03:14	60m	-7 / -	ER3ZW	- / -	7	✓ Closing fragment
10-01 03:11	80m	+14 / -	KC3UTO	- / -	3	Partial capture
10-01 03:09	80m	+17 / -	V47YA	-16 / -20	4	✓ Closing observed
10-01 03:01	80m	+10 / -4	Z61DX	+4 / +2	12	✓ Full exchange observed
09-30 18:17	80m	+3 / +3	9H4JX	-10 / -2	5	✓ Full exchange observed
09-30 18:10	80m	+11 / -	9H4JX	- / -	6	Partial capture
09-30 18:06	80m	+11 / -	TK4QP	- / -	8	Partial capture
09-30 18:04	80m	+16 / -15	EA3JIJ	-18 / -25	5	✓ Full exchange observed
09-29 13:47	60m	-2 / -	DL1IP	- / -8	3	✓ Closing fragment
09-29 09:34	60m	+1 / -	DL1IP	- / -	3	Partial capture
09-29 09:13	60m	-5 / -	DL3FBI	- / -10	3	✓ Closing fragment
09-29 09:11	60m	-2 / -	HF40BLP	- / -13	2	Partial capture
09-29 07:54	60m	-1 / -	ON8SL	- / -	3	Partial capture
09-29 07:49	60m	+2 / -	HF40BLP	- / -	3	Partial capture
09-29 07:47	60m	+4 / -	IW2HWN	- / -	3	Partial capture
09-29 07:29	60m	0 / +1	DL9KM	-10 / -1	5	✓ Full exchange observed
09-29 07:28	60m	-1 / -	PB0ACU	- / -12	3	✓ Closing fragment
09-29 07:25	60m	+2 / -	GX7RAF/P	- / -	2	Partial capture
09-29 07:23	60m	+1 / -	DJ1AE	- / -7	3	✓ Closing fragment
09-29 07:19	60m	+1 / -	DJ1AE	- / -	3	Partial capture
09-29 07:17	60m	0 / -	F1TXI	- / +2	3	✓ Closing fragment
09-29 07:15	60m	-1 / -	DM2GG	-2 / -	5	✓ Full exchange observed
09-29 07:14	60m	-2 / -	DL9BUS	- / -	3	Partial capture
09-29 07:12	60m	0 / -	DM3XD	-17 / -2	4	✓ Closing observed
09-29 07:10	60m	-10 / -	F1TXI	- / -	2	Partial capture
09-29 06:06	80m	+10 / -	DL/AD2LX	- / -	7	Partial capture
09-29 06:05	80m	+11 / -	G0JEI	- / -18	2	✓ Closing fragment
09-29 06:03	80m	+11 / +4	DL9KM	-7 / 0	6	✓ Full exchange observed
09-29 06:03	80m	+11 / -14	G8OO	-11 / -10	5	✓ Full exchange observed
09-29 06:01	80m	+12 / -	M9HEB	- / -11	4	✓ Closing fragment
09-29 05:59	80m	+9 / -	F1IWH	- / -17	3	✓ Closing fragment
09-29 05:55	80m	+12 / -	DL/AD2LX	- / -6	2	Partial capture
09-29 05:11	60m	+3 / -	HR1JB	- / -20	4	✓ Closing fragment
09-29 05:09	60m	+4 / -	EW6DO	- / -11	2	✓ Closing fragment
09-29 04:19	60m	-12 / -	F1IQH	- / -	2	Partial capture
09-29 04:17	60m	-8 / +3	F4FPR	-15 / -11	5	✓ Full exchange observed
09-29 04:16	60m	-9 / -	N8OQ	-19 / -17	5	✓ Closing observed
09-29 04:08	60m	-11 / -	IK1WGX	- / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
032915  -7 2071  W8FSM SP9KR JO90 (x2)
033100  -4 2071  KE0L SP9KR JO90 (x3)
033300  -4 2071  ON5PH SP9KR JO90
033315 -16 1279  SP9KR ON5PH +25
033330  -8 2071  ON5PH SP9KR R-13
033345 -14 1278  SP9KR ON5PH RR73
033400  -2 2071  ON5PH SP9KR 73
033430  -6 2071  KC3LVG SP9KR JO90 (x2)
033700  -7 2071  NV1U SP9KR JO90 (x3)

80m

UTC    dB Audio  Message
030500 +13 1727  Z61DX SP9KR JO90 (x3)
030615  +4  852  SP9KR Z61DX -04
030630 +12 1727  Z61DX SP9KR R+02
030645  +4  852  SP9KR Z61DX RR73
030700 +13 1727  Z61DX SP9KR 73
030800 +14 1727  N9RD SP9KR JO90
030915 +17 1727  V47YA SP9KR JO90 (x2)
031000 -16  540  SP9KR V47YA RR73
031015 +17 1727  V47YA SP9KR 73
031145 +14 1727  KC3UTO SP9KR JO90 (x3)

160m

UTC    dB Audio  Message
172015 +11 1841  RI1FJZ SP9KR JO90 (x15)

40m

UTC    dB Audio  Message
035230 -14 2107  HK3YL SP9KR JO90 (x3)
041600  -7 1880  SP9KR EA8BS +05
042600  -6  734  SP9KR F4GYM +18 (x2)
134645 -11 1718  SQ100PKP SP9KR JO90
134700  -9 1803  SP9KR SP100PKP -07
134715  -2 1949  DL7CK/P SP9KR R+05
134730 -10 1803  SP9KR RR73; OZ1HGH <...> +00
135015  +1 2194  DC2CB SP9KR JO90
135045  +2 2194  DG9SBJ SP9KR JO90
135145  +3 2194  DL2BMH SP9KR JO90 (x3)

10m

UTC    dB Audio  Message
165115  -7  496  SP9KR TK5K RR73
170900  -2 2648  SP9KR UR5FS +08
170900 -14 2379  SP9KR I1NDB -07
170930  +1 2647  SP9KR UR5FS RR73
171230  -7 1545  SP9KR UX2QX -06 (x2)
171730  -9 1850  SP9KR YU4FQN -02 (x2)
172215 -18 1309  SP9KR IK0QKN +05
174445 -19 2031  SP9KR F5PCV JO10
085100  +0 1327  SP9KR SV7BAY +34 (x2)
085200  -9 1775  SP9KR IZ3EAW JN55 (x3)

20m

UTC    dB Audio  Message
032700 -22 1777  N8MZN SP9KR 73
032800 -22 1776  VE3PFW SP9KR JO90
032900 -24 1776  CQ SP9KR JO90                         a1
032945 -10  717  SP9KR VA2EHQ +14 (x3)
043315 -20 1876  SP9KR EA5JHD -13 (x5)
050615  -7 2283  SP9KR SV8DUU KM39 (x4)

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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