SP5ZTM — 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: KO01

Receiver-side FT8 activity involving SP5ZTM, decoded by SO8OO in southeastern Poland. 350 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 5 UTC dates in the available aggregate history. Observed between 2026-08-20 and 2026-08-28.

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 350 FT8 messages attributed to SP5ZTM as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%), followed by 80 m (0%). Most decodes (52%) fell within the six-hour window 13:00-19:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (79%); the estimated median was -5 dB.

Overview

350
Messages attributed
5
UTC dates decoded
20
Active 15-min windows
-5 dB
Estimated median S/N

Bands

80m · 1 40m · 349
First attributed message: 2026-08-20
Last attributed message: 2026-08-28 18:38 UTC

Observed FT8 message patterns

Attributed sample
350 messages
Active dates
5 UTC dates
Estimated median S/N
-5 dB
Estimated 10th-90th percentile
-11 to +3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 66, strong (≥ -8 dB) 277.

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 SP5ZTM 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 SP5ZTM

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 · 226 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
182 km (approx.)
Last such locator decoded
2026-08-28 18:38 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 UTCBandSP5ZTM S/NCounterpartCounterpart S/NMsgsCapture
08-29 17:44 20m - / -9 EA1ERH -4 / - 2 ✓ Closing fragment
08-29 17:42 20m - / +3 DG6GU -6 / - 2 Partial capture
08-29 10:11 20m - / -14 R4FDK -15 / - 5 ✓ Closing fragment
08-29 10:03 20m - / - F4AXK -3 / - 2 Partial capture
08-29 09:55 20m - / -13 DK1LRS -11 / - 3 ✓ Closing fragment
08-29 09:45 20m - / -14 DK8HC/P -8 / - 6 Partial capture
08-28 18:29 20m - / -13 M7KSV -8 / - 4 Partial capture
08-28 18:19 20m - / - LA7ZGA -16 / - 2 ✓ Closing fragment
08-28 18:18 20m - / -5 M7NFV -3 / - 3 ✓ Closing fragment
08-28 18:09 20m - / -15 2E1HAT +7 / - 11 ✓ Closing fragment
08-28 17:59 20m - / -9 M7MOK +5 / - 3 ✓ Closing fragment
08-28 17:53 20m - / - MW7AHM -6 / - 2 Partial capture
08-28 08:11 20m - / -6 RU3QR -1 / - 3 ✓ Closing fragment
08-28 07:49 40m -7 / - PG5FRL - / -5 2 ✓ Closing fragment
08-28 07:47 40m -7 / - SP7TAC -4 / - 5 ✓ Full exchange observed
08-27 17:10 40m -9 / -13 DG4LXM -13 / +3 4 Partial capture
08-27 17:07 40m -2 / - R6AO - / - 3 Partial capture
08-27 17:05 40m -3 / +3 S57CT -1 / +9 5 ✓ Full exchange observed
08-27 17:03 20m - / - DG1KFR -4 / - 2 Partial capture
08-27 17:00 20m - / -10 DL5MKR -4 / - 3 ✓ Closing fragment
08-27 16:57 20m - / -4 M7INZ -14 / - 2 ✓ Closing fragment
08-27 16:52 20m - / -11 G4UJS +4 / - 2 ✓ Closing fragment
08-27 08:35 40m -5 / - DG1KFR - / +2 2 ✓ Closing fragment
08-27 08:32 40m -4 / - PD0ONP - / -3 2 ✓ Closing fragment
08-27 08:19 40m -6 / - YT2FA - / +3 3 ✓ Closing fragment
08-27 08:18 40m -5 / - PE2K - / +9 2 ✓ Closing fragment
08-27 08:16 40m - / -1 OZ9FF -18 / - 11 Partial capture
08-27 08:16 40m -10 / - F4BAL - / -10 2 ✓ Closing fragment
08-27 08:11 40m -10 / - IZ4AIF -10 / - 4 ✓ Closing observed
08-27 08:10 40m -7 / -15 F1PBZ -9 / -2 3 ✓ Full exchange observed
08-27 08:09 40m -8 / - DL6BAD - / +6 2 ✓ Closing fragment
08-27 08:08 40m -10 / - HA8LKI - / -2 2 ✓ Closing fragment
08-27 08:06 40m +2 / - OE8PIT - / +6 2 ✓ Closing fragment
08-27 08:03 40m -8 / - SP9KSK -8 / - 4 ✓ Closing observed
08-27 08:00 40m -6 / - GJ0KYZ - / -6 2 ✓ Closing fragment
08-27 08:00 40m - / -13 DD9MI -16 / - 2 Partial capture
08-27 07:57 40m -4 / -1 SP9SOS -9 / - 3 Partial capture
08-27 07:56 40m -4 / - S57BTI -14 / - 3 ✓ Closing observed
08-27 07:56 40m -6 / - YL3GAO -14 / - 3 ✓ Full exchange observed
08-27 07:50 40m -3 / - G4YAN - / - 3 ✓ Closing fragment
08-27 07:48 40m -5 / - SV1BKA - / -4 3 Partial capture
08-27 07:40 40m -2 / - R2FDP -16 / - 4 ✓ Closing observed
08-27 07:39 40m -12 / - R6ZL - / -14 2 ✓ Closing fragment
08-27 07:36 40m -9 / -4 SQ6PZL -13 / - 4 ✓ Full exchange observed
08-27 07:33 40m -4 / - R6ZL - / -18 2 ✓ Closing fragment
08-27 07:30 40m -8 / 0 OK1HEH -4 / - 4 ✓ Full exchange observed
08-27 07:27 40m -6 / 0 SP3IPA +2 / - 7 ✓ Full exchange observed
08-27 07:25 40m -7 / - PD4TK - / -14 3 ✓ Closing fragment
08-27 07:24 40m +2 / - DL3BH - / -14 2 ✓ Closing fragment
08-25 18:21 40m -3 / +2 S57TW +9 / - 3 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
100400  -2 2557  SP5ZTM F4AXK IN96
100800 -12  514  SP5ZTM HB9IUI JN36
101130 -13  820  SP5ZTM R4FDK R-14 (x5)
141130 -11  879  SP5ZTM EA2EED R-02
154200 -16 2124  SP5ZTM UN7IV LO80
164630 -17 2304  SP5ZTM BG7BMG -19
171730  -7 1086  SP5ZTM F1BOW R-09
174200  -5 1616  SP5ZTM DG6GU JN37 (x2)
174400  -2 1576  SP5ZTM EA1ERH R-09 (x2)
80m 
UTC    dB Audio  Message
183815  +7  252  CQ SP5ZTM KO01
40m 
UTC    dB Audio  Message
171100 -11 1713  SP5ZTM DG4LXM R-13
171130  -2 1389  SP5ZTM DM2CNE JO73
171130 -15 1712  SP5ZTM DG4LXM R-13 (x2)
074545  -6 1099  CQ SP5ZTM KO01 (x2)
074700  -6 1100  SP5ZTM SP7TAC JO91
074715  -7 1099  SP7TAC SP5ZTM +20
074730  -3 1100  SP5ZTM SP7TAC R+11
074745  -7 1099  SP7TAC SP5ZTM RR73
074800  -3 1100  SP5ZTM SP7TAC 73
074815  -5 1098  CQ SP5ZTM KO01 (x2)
074915  -7 1099  PG5FRL SP5ZTM -05 (x2)
10m 
UTC    dB Audio  Message
125745 -11 1031  SP5ZTM DK7ZT -08
125915  -8 1675  SP5ZTM DF9DX -04 (x2)
130115 -18 1416  SP5ZTM PA9JO -11 (x2)
130415 -12 1618  SP5ZTM 2E0SRO -15 (x2)
130645  -9 2164  SP5ZTM ON7HM JO10
130645 -16  757  SP5ZTM G1OZO R-11

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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