SP7ALM — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: KO00

Receiver-side FT8 activity involving SP7ALM, decoded by SO8OO in southeastern Poland. 227 FT8 messages attributed to this token as transmitter, on 40m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-20 and 2026-10-30.

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 227 FT8 messages attributed to SP7ALM as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). Several six-hour UTC windows tied for the largest share (77%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

227

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

40m · 227

First attributed message: 2026-06-20
Last attributed message: 2026-10-30 09:43 UTC

Observed FT8 message patterns

Attributed sample: 227 messages
Active dates: 6 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -19 to +1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 45, moderate (-15 to -9 dB) 75, strong (≥ -8 dB) 107.

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 SP7ALM in decoded directed-looking exchanges:

SP4WSL · Poland ×2 IK4RVY · Italy SH4HFS · Sweden SP1ZMO · Poland SP4GDW · Poland SP6SR · Poland SP7VCL · Poland SP9OUV · Poland

Most frequent locator attributed to SP7ALM

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: KO00 · 89 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 84 km (approx.)
Last such locator decoded: 2026-10-30 09:43 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	SP7ALM S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-30 12:17	40m	- / -16	SP5ISM	-12 / -	3	Partial capture
10-30 09:41	40m	-12 / -	M1DBB	- / -	5	Partial capture
10-29 14:36	40m	-10 / -	UT0IN	- / -	5	Partial capture
10-29 14:17	40m	-10 / -	EX7CQ	- / -	3	Partial capture
10-29 14:13	40m	-9 / -	EX7CQ	- / -	3	Partial capture
10-29 14:10	40m	-11 / -	SP7VCL	-6 / +6	4	✓ Closing observed
10-29 14:06	40m	-12 / -	TC1TR	- / -	5	Partial capture
10-29 12:45	40m	-13 / -10	SP6SR	-10 / +4	5	✓ Full exchange observed
10-28 17:43	40m	- / -9	IK4RVY	+2 / -	3	✓ Closing fragment
10-25 10:36	40m	-8 / -	SH4HFS	- / -20	3	✓ Closing fragment
10-25 10:31	40m	-6 / -	SP4GDW	- / +6	3	✓ Closing fragment
10-25 10:28	40m	-4 / -10	SP4WSL	-10 / -	6	✓ Full exchange observed
10-25 10:24	40m	-3 / -9	SP9OUV	+4 / -	4	✓ Closing observed
10-25 10:22	40m	-6 / -2	SP1ZMO	-17 / -1	4	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
141845  -9 1366  EX7CQ SP7ALM KO00 (x2)
143645 -10 1366  UT0IN SP7ALM KO00 (x5)
094145 -13 1367  M1DBB SP7ALM KO00 (x5)
121745 -12 1129  SP7ALM SP5ISM -16 (x3)

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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