SP9SX — 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: KN19

Receiver-side FT8 activity involving SP9SX, decoded by SO8OO in southeastern Poland. 163 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 18 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-20.

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 163 FT8 messages attributed to SP9SX as the transmitting token by decoded message structure across 18 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (47%), followed by 40 m (23%) and 60 m (18%). Most decodes (98%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (93%); the estimated median was +10 dB.

Overview

163
Messages attributed
18
UTC dates decoded
23
Active 15-min windows
+10 dB
Estimated median S/N

Bands

160m · 19 80m · 77 60m · 29 40m · 37 20m · 1
First attributed message: 2026-06-07
Last attributed message: 2026-10-20 21:23 UTC

Observed FT8 message patterns

Attributed sample
163 messages
Active dates
18 UTC dates
Estimated median S/N
+10 dB
Estimated 10th-90th percentile
-6 to +20 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 11, strong (≥ -8 dB) 152.

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 SP9SX 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 SP9SX

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
KN19 · 118 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
100 km (approx.)
Last such locator decoded
2026-10-20 21:20 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 UTCBandSP9SX S/NCounterpartCounterpart S/NMsgsCapture
10-20 21:22 40m -7 / - BG4UVR - / -20 4 ✓ Closing fragment
10-20 21:20 40m -6 / - A92AE - / -3 4 ✓ Closing fragment
10-12 20:17 60m 0 / - TF3VE - / -7 2 ✓ Closing fragment
10-11 17:20 60m +6 / - H49A - / -23 25 ✓ Closing fragment
10-10 04:17 80m - / - DO9BAU +11 / - 13 Partial capture
10-10 04:17 80m - / - EA1IOK +1 / - 3 Partial capture
10-10 04:16 80m +17 / -8 VP2MAA -6 / -11 7 ✓ Full exchange observed
10-05 19:08 80m - / - DO9FR -13 / - 2 Partial capture
10-05 19:06 80m +12 / - 9T0MD - / - 4 Partial capture
10-05 19:03 80m - / - SV1EKI -19 / - 2 Partial capture
10-05 19:02 80m +11 / - 9A4ZM 0 / -3 6 ✓ Full exchange observed
09-20 18:10 160m +14 / -3 UA3ZUX +12 / +6 5 ✓ Full exchange observed
09-20 18:08 160m +13 / - RI1FJZ - / -20 5 ✓ Closing fragment
09-18 17:09 80m +23 / - 5W1SA - / - 5 Partial capture
09-18 17:06 80m +21 / - 5W1SA - / - 2 Partial capture
09-16 17:17 80m - / - 9A4ZM +14 / - 2 Partial capture
09-16 17:17 80m - / -5 DK7ZT +2 / - 5 Partial capture
09-16 17:17 80m - / - DO9BAU +8 / - 10 Partial capture
09-16 17:10 80m +20 / - KH8WW - / -22 15 ✓ Closing fragment
09-12 17:37 40m -6 / - KH8WW - / -18 10 Partial capture
09-04 20:41 160m +11 / - RI1FJL - / -16 12 Partial capture
08-31 20:31 80m +16 / - RI1FJL - / - 18 Partial capture
08-31 20:30 80m +7 / - LA7HJA - / - 2 Partial capture
08-27 21:31 80m +17 / - RI1FJL - / - 8 Partial capture
08-21 20:54 40m -6 / - DK7ZT - / -4 3 Partial capture
08-21 20:54 40m - / -9 R2EA/P -12 / - 2 Partial capture
08-21 20:51 40m -6 / - 3B8/SQ9UM - / -22 4 Partial capture
08-18 19:25 40m - / +9 DK7ZT -17 / - 3 Partial capture
08-18 19:23 40m +2 / - <...> - / -13 2 Partial capture
08-18 19:20 40m -1 / - 3B9/SQ9UM - / -13 6 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
173915  -9  705  KH8WW SP9SX KN19 (x7)
212015  -5 2489  A92AE SP9SX KN19 (x4)
212215  -7 2490  BG4UVR SP9SX -20 (x4)
60m 
UTC    dB Audio  Message
172615  +7 1777  H49A SP9SX KN19 (x13)
201715  +0  964  TF3VE SP9SX R-07 (x2)
80m 
UTC    dB Audio  Message
041815  -3 1211  SP9SX EA5D JN00
041815 +13 2102  SP9SX DO9BAU JO62
041845  -1  642  SP9SX EA1IOK IN62
041845  +7 2102  SP9SX DO9BAU JO62
041915  +0  641  SP9SX EA1IOK IN62
041915  +7 2102  SP9SX DO9BAU JO62 (x10)
160m 
UTC    dB Audio  Message
204545 +12  995  RI1FJL SP9SX KN19 (x4)
180815 +11 2123  RI1FJZ SP9SX -20 (x5)
181030 +12 2646  SP9SX UA3ZUX KO90
181115 +14 2123  UA3ZUX SP9SX +06
181130 +12 2646  SP9SX UA3ZUX R-03
181145 +13 2123  UA3ZUX SP9SX RR73
181200 +11 2646  SP9SX UA3ZUX 73
181200 -17  727  SP9SX PA3KUS JO21

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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