SP7TST — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: KO01

Receiver-side FT8 activity involving SP7TST, decoded by SO8OO in southeastern Poland. 73 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 10 UTC dates in the available aggregate history. Observed between 2026-09-08 and 2026-09-19.

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 73 FT8 messages attributed to SP7TST as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (37%), followed by 80 m (36%) and 40 m (27%). Several six-hour UTC windows tied for the largest share (73%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (88%); the estimated median was +2 dB.

Overview

73
Messages attributed
10
UTC dates decoded
23
Active 15-min windows
+2 dB
Estimated median S/N

Bands

160m · 27 80m · 26 40m · 20
First attributed message: 2026-09-08
Last attributed message: 2026-09-19 07:33 UTC

Observed FT8 message patterns

Attributed sample
73 messages
Active dates
10 UTC dates
Estimated median S/N
+2 dB
Estimated 10th-90th percentile
-9 to +12 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 8, strong (≥ -8 dB) 64.

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 SP7TST 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 SP7TST

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
KO01 · 45 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
182 km (approx.)
Last such locator decoded
2026-09-19 07:33 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 UTCBandSP7TST S/NCounterpartCounterpart S/NMsgsCapture
09-19 07:33 40m -3 / - HF100PKP - / -10 2 Partial capture
09-19 07:32 40m -2 / - SP100PKP - / - 2 Partial capture
09-19 07:26 40m - / -15 HF100PKP -9 / - 2 Partial capture
09-19 07:24 40m -5 / - SP100PKP - / -18 4 Partial capture
09-19 07:23 40m -3 / - II6IGTO - / - 2 Partial capture
09-19 07:19 40m 0 / -19 HF100PKP -2 / -18 7 Partial capture
09-17 18:40 80m +14 / 0 3Z100PKP +13 / - 3 Partial capture
09-17 18:38 160m 0 / -6 SQ100PKP -15 / - 3 Partial capture
09-16 20:00 80m -8 / -8 SN100PKP +11 / - 3 Partial capture
09-15 13:09 40m - / - HG8LXL -7 / - 4 Partial capture
09-15 13:08 40m -10 / +3 3Z100PKP -3 / - 2 Partial capture
09-14 19:49 80m +11 / - RD9M/3 - / -7 3 Partial capture
09-14 19:49 80m - / - UA4FKT +16 / - 2 Partial capture
09-14 19:48 80m +6 / -5 SO100PKP +8 / -3 3 Partial capture
09-13 12:08 40m -11 / - R3UCC/P - / - 3 Partial capture
09-12 20:42 160m +6 / - HF100PKP +8 / - 3 Partial capture
09-12 19:46 80m - / - SP2GR -3 / - 2 Partial capture
09-12 19:45 80m +6 / +8 SN100PKP +20 / - 2 Partial capture
09-12 19:26 160m - / - OK1DXR +8 / - 8 Partial capture
09-12 19:25 160m +8 / -2 SO100PKP +8 / - 2 Partial capture
09-12 19:02 80m -2 / - SQ7SE -7 / - 7 ✓ Closing observed
09-10 20:58 160m +8 / +4 SQ100PKP +13 / - 3 Partial capture
09-10 20:30 160m - / - R6FFB -7 / - 6 Partial capture
09-10 20:27 160m +1 / +8 SN100PKP +1 / - 16 Partial capture
09-10 19:44 80m - / 0 SQ9BC +22 / - 2 Partial capture
09-10 19:44 80m - / - DO9BAU -2 / - 12 Partial capture
09-10 19:42 80m +15 / -3 SN40KZE +3 / - 3 Partial capture
09-10 19:36 160m +12 / - SO100PKP +15 / - 3 Partial capture
09-10 19:21 80m +8 / - SP100PKP +14 / - 3 Partial capture
09-09 19:55 160m +8 / -1 SP100PKP +8 / - 3 Partial capture
09-09 19:29 160m +6 / - 3Z100PKP +2 / - 3 Partial capture
09-09 19:27 160m -2 / - SP6PCB +1 / - 4 ✓ Closing observed
09-09 18:02 80m +12 / +8 SN100PKP -8 / - 3 Partial capture
09-09 18:00 80m +8 / -3 SP100PKP +5 / +4 3 Partial capture
09-08 21:00 160m +2 / +1 HF100PKP +11 / - 3 Partial capture
09-08 20:49 160m -7 / - SN100PKP - / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
072045  -2 2400  HF100PKP SP7TST R-18 (x3)
072315  -3 1988  II6IGTO SP7TST KO01 (x2)
072415  -2 1988  <SP100PKP> SP7TST KO01 (x2)
072630  -8 2401  SP7TST HF100PKP -15
072645 -11 1988  SP100PKP SP7TST KO01
072700 -10 2401  SP7TST HF100PKP -15
072715 -10 1988  SP100PKP SP7TST R-18 (x3)
073315  -3 1988  <HF100PKP> SP7TST KO01 (x2)
80m 
UTC    dB Audio  Message
195015 +11 2350  RD9M/3 SP7TST KO01
195030 +26 2650  SP7TST SP100PKP +16
195045 +12 2350  RD9M/3 SP7TST R-07
195100 +26 2650  SP7TST RR73; PH7GD <...> -08
182815 +12 1093  SQ100PKP SP7TST KO01
183300  +9 1415  SP7TST 3Z100PKP -07
183315  +2 1414  SP100PKP SP7TST R+09
183330 +12 1415  SP7TST RR73; SP3KRE <...> -16
200045  -6 1266  SN100PKP SP7TST KO01
200100 +11 1267  SP7TST SN100PKP -08
200115  -9 1266  SN100PKP SP7TST R+13
200130 +13 1267  SP7TST RR73; SP9BEB <...> +06
184045 +14 1029  3Z100PKP SP7TST KO01
184100 +13 1029  SP7TST 3Z100PKP +00
184115 +15 1029  3Z100PKP SP7TST R+16
160m 
UTC    dB Audio  Message
192630 +10 1295  SP7TST OK1DXR JO60 (x7)
204215  +5  887  HF100PKP SP7TST KO01
204230  +8  887  SP7TST HF100PKP +12
204245  +8  887  HF100PKP SP7TST R+33
204300 +13  887  SP7TST RR73; G0WZM <...> -10
183845  +0 1752  SQ100PKP SP7TST KO01
183900 -15 1752  SP7TST SQ100PKP -06
183915  -1 1752  SQ100PKP SP7TST R+14
183930 -24 1752  SP7TST RR73; SP3IOE <...> -02

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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