SP9OPL — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving SP9OPL, decoded by SO8OO in southeastern Poland. 32 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-09-13.

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 32 FT8 messages attributed to SP9OPL 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 (59%), followed by 160 m (31%) and 80 m (9%). Most decodes (66%) 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 (69%); the estimated median was -5 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-5 dB

Estimated median S/N

Bands

160m · 10 80m · 3 60m · 19

First attributed message: 2026-06-13
Last attributed message: 2026-09-13 17:13 UTC

Observed FT8 message patterns

Attributed sample: 32 messages
Active dates: 4 UTC dates
Estimated median S/N: -5 dB
Estimated 10th-90th percentile: -15 to +6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 10, strong (≥ -8 dB) 22.

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 SP9OPL in decoded directed-looking exchanges:

D2UY · Angola ×2 OE3PKU · Austria CN2DX · Morocco EA3HMM · Spain HZ1TT · Saudi Arabia JA4MMO · Japan JY5CG · Jordan RL2F · Kaliningrad RX3ASQ · European Russia S57MG · Slovenia SP4TKA · Poland

Most frequent locator attributed to SP9OPL

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 · 18 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 208 km (approx.)
Last such locator decoded: 2026-09-13 17:13 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	SP9OPL S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-04 02:54	160m	-14 / -	SV7BVM	- / -	5	Partial capture
09-04 02:52	160m	-14 / -	TN8GD	- / -	2	Partial capture
09-04 02:51	160m	-12 / -	RC9WC	- / -	2	Partial capture
08-31 16:10	20m	- / -	EB3JT	0 / -	2	Partial capture
08-15 18:59	160m	- / -17	OE3PKU	+6 / -	4	✓ Closing fragment
08-11 18:55	20m	- / -10	RL2F	-12 / -	2	✓ Closing fragment
08-08 03:19	80m	-2 / -	VO1IV	- / -	3	Partial capture
08-05 18:26	20m	- / -1	EA3HMM	+3 / -	4	✓ Closing fragment
08-05 18:19	20m	- / -12	D2UY	-12 / -	4	✓ Closing fragment
07-30 03:42	20m	- / -6	HZ1TT	-11 / -	5	✓ Closing fragment
07-29 17:33	20m	- / -11	JY5CG	-20 / -	2	✓ Closing fragment
07-29 17:08	20m	- / -2	9A4ZM	+1 / -	3	Partial capture
07-29 16:49	20m	- / -4	A41KB	-14 / -	2	Partial capture
07-25 12:37	20m	- / -12	CN2DX	-14 / -	2	✓ Closing fragment
07-24 21:06	20m	- / +1	DK2MAX	-16 / -	2	Partial capture
07-24 21:04	20m	- / -17	JA4MMO	-20 / -	2	✓ Closing fragment
07-21 18:43	20m	- / -9	CN2DX	-5 / -	3	Partial capture
07-11 20:28	20m	- / -16	4X1UF	-12 / -	3	Partial capture
07-08 20:19	40m	- / -	SP4TKA	-21 / -	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
185915  +4 1106  SP9OPL OE3PKU JN87 (x4)
025115 -12 1106  RC9WC SP9OPL JO90 (x2)
025245 -15 1106  TN8GD SP9OPL JO90 (x2)
025415 -14 1106  SV7BVM SP9OPL JO90 (x5)
171345 -15 1106  OK1DXR SP9OPL JO90

20m

UTC    dB Audio  Message
034545 -10 1762  SP9OPL HZ1TT R-12 (x2)
141800 -23 1647  SP9OPL MD0RTZ -01
181900 -12 2222  SP9OPL D2UY RR73 (x4)
182645  +3  345  SP9OPL EA3HMM JN00 (x4)
185545 -12 2178  SP9OPL RL2F -10 (x2)
161030  -2 1187  SP9OPL EB3JT JN01 (x2)

80m

UTC    dB Audio  Message
031900  +2 1114  VO1IV SP9OPL JO90 (x3)

40m

UTC    dB Audio  Message
201830 -13 1887  SP9OPL S57MG RR73
201930 -22 1981  SP9OPL SP4TKA KO14 (x2)
202100 -12 1887  SP9OPL <...> R+10
202915 -24 1673  SP9OPL 9A/S55X/P -15

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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