SP9SVN — 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: JO90

Receiver-side FT8 activity involving SP9SVN, decoded by SO8OO in southeastern Poland. 41 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-10-29 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 41 FT8 messages attributed to SP9SVN as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (93%), followed by 80 m (7%). In this small sample, the estimated median decoder S/N was -3 dB; no usual signal pattern is inferred.

Overview

41
Messages attributed
2
UTC dates decoded
9
Active 15-min windows
-3 dB
Estimated median S/N

Bands

80m · 3 40m · 38
First attributed message: 2026-10-29
Last attributed message: 2026-10-30 11:30 UTC

Observed FT8 message patterns

Attributed sample
41 messages
Active dates
2 UTC dates
Estimated median S/N
-3 dB
Estimated 10th-90th percentile
-11 to 0 dB
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 7, strong (≥ -8 dB) 33.

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 SP9SVN in decoded directed-looking exchanges:

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 SP9SVN

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 · 20 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
208 km (approx.)
Last such locator decoded
2026-10-30 11:30 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 UTCBandSP9SVN S/NCounterpartCounterpart S/NMsgsCapture
10-30 11:29 40m -10 / - HB9ZHK - / - 2 Partial capture
10-30 11:27 40m -5 / - MW7TTA - / -25 4 Partial capture
10-30 11:23 40m -4 / - LZ1ZF - / +8 2 Partial capture
10-30 11:21 40m -4 / -5 9A4ZM -7 / - 4 ✓ Closing observed
10-30 11:19 40m -4 / -11 F1UNR -21 / - 2 Partial capture
10-30 10:42 10m - / - EA4ZM -4 / - 3 ✓ Closing fragment
10-30 08:08 40m -4 / - IQ0AK - / - 3 Partial capture
10-30 07:42 40m -4 / - 4X1UF - / -22 9 Partial capture
10-30 07:40 40m -2 / - LB2WD - / - 4 Partial capture
10-30 07:39 40m 0 / - 4X1UF - / - 3 Partial capture
10-29 08:25 40m - / - UR9QQ -10 / - 2 Partial capture
10-29 08:23 40m - / - DJ0MAB -3 / - 3 Partial capture
10-29 07:55 40m - / - DL9KM -1 / - 7 Partial capture
10-29 07:55 40m -12 / - CT1BFP - / - 2 ✓ Closing fragment
10-29 07:55 40m -14 / - YO2LZS -12 / - 2 ✓ Closing observed
10-29 07:53 40m - / +6 DK7ZT -9 / - 3 Partial capture
10-29 07:39 80m - / -22 DK7ZT -10 / - 5 Partial capture
10-29 07:38 80m - / - SP5EXA +20 / - 5 Partial capture
10-29 07:35 40m - / - F8MRQ -14 / - 2 Partial capture
10-29 07:19 40m -2 / - DL6ULI +1 / - 3 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
080945  -2  780  IQ0AK SP9SVN JO90
111930  -4 2230  F1UNR SP9SVN JO90
112015 -21 2230  SP9SVN F1UNR -11
112115  -6 2227  SP9SVN 9A4ZM JN86 (x2)
112200  -4  907  9A4ZM SP9SVN RRR
112215  -9 2227  SP9SVN 9A4ZM 73
112315  -5 1129  LZ1ZF SP9SVN JO90 (x2)
112715  -7 2268  MW7TTA SP9SVN JO90 (x4)
112945 -11 1601  HB9ZHK SP9SVN JO90 (x2)
10m 
UTC    dB Audio  Message
104230  -6 2246  SP9SVN EA4ZM +13 (x3)
80m 
UTC    dB Audio  Message
073800  +5 1355  F1RCQ SP9SVN JO90
073830  +7 1355  CQ SP9SVN JO90
073845 +20 2705  SP9SVN SP5EXA KO02
073900  +8 1355  CQ SP9SVN JO90
073915 +22 2705  SP9SVN SP5EXA KO02
073915  -2 1759  SP9SVN DK7ZT -22
073945 +19 2705  SP9SVN SP5EXA KO02
073945  -4 1759  SP9SVN DK7ZT -22
074015 +19 2705  SP9SVN SP5EXA KO02
074015 -14 1759  SP9SVN DK7ZT -22
074045 +20 2705  SP9SVN SP5EXA KO02
074045 -20 1759  SP9SVN DK7ZT -22 (x2)

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

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