SM7SLU/QRP — 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: Sweden

Receiver-side FT8 activity involving SM7SLU/QRP, decoded by SO8OO in southeastern Poland. 18 FT8 messages attributed to this token as transmitter, on 40m, across 1 UTC dates in the available aggregate history. Last observed 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 18 FT8 messages attributed to SM7SLU/QRP as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was -14 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-14 dB

Estimated median S/N

Bands

40m · 18

First attributed message: 2026-09-07
Last attributed message: 2026-09-07 20:38 UTC

Observed FT8 message patterns

Attributed sample: 18 messages
Active dates: 1 UTC dates
Estimated median S/N: -14 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 12, strong (≥ -8 dB) 1.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with SM7SLU/QRP in decoded directed-looking exchanges:

AO77R · Spain ×4

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	SM7SLU/QRP S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-07 20:37	40m	-15 / -	PD4HS	- / -19	3	Partial capture
09-07 20:32	40m	-13 / -	JR3NZC	- / -16	2	Partial capture
09-07 20:27	40m	-16 / -	RW3DDZ	- / -10	2	Partial capture
09-07 20:26	40m	-11 / -	AO77R	-17 / -	3	✓ Closing observed
09-07 20:24	40m	-16 / -	JR3NZC	- / -16	2	Partial capture
09-07 19:58	40m	-10 / -	<...>	-5 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
202430 -16 1436  JR3NZC SM7SLU/QRP -16 (x2)
202600 -15 1436  PD7BDN SM7SLU/QRP -01
202630 -15 1436  SM7SLU/QRP AO77R RR73
202730 -16 1437  RW3DDZ SM7SLU/QRP -10 (x2)
202830 -19 1437  SM7SLU/QRP AO77R RR73
202845 -11 1435  AO77R SM7SLU/QRP 73
203200 -13 1435  JR3NZC SM7SLU/QRP -16 (x2)
203430 -12 1435  OK1AWC SM7SLU/QRP +04
203500 -15 1436  SM7SLU/QRP AO77R RR73
203700 -14 1436  PD4HS SM7SLU/QRP -19 (x3)

CW

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

Explore CW reception at SO8OO

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee