PY7ZC — 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: Brazil Most frequent locator attributed to this token: HI21

Receiver-side FT8 activity involving PY7ZC, decoded by SO8OO in southeastern Poland. 47 FT8 messages attributed to this token as transmitter, on 40m, 10m, across 4 UTC dates in the available aggregate history. Observed between 2026-10-20 and 2026-10-23.

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 47 FT8 messages attributed to PY7ZC as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (60%), followed by 10 m (40%). Several six-hour UTC windows tied for the largest share (60%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (91%); the estimated median was -18 dB.

Overview

47
Messages attributed
4
UTC dates decoded
16
Active 15-min windows
-18 dB
Estimated median S/N

Bands

40m · 28 10m · 19
First attributed message: 2026-10-20
Last attributed message: 2026-10-23 15:06 UTC

Observed FT8 message patterns

Attributed sample
47 messages
Active dates
4 UTC dates
Estimated median S/N
-18 dB
Estimated 10th-90th percentile
-21 to -16 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 43, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 0.

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 PY7ZC 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 PY7ZC

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
HI21 · 20 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,493 km (approx.)
Last such locator decoded
2026-10-23 14:53 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 UTCBandPY7ZC S/NCounterpartCounterpart S/NMsgsCapture
10-23 15:53 10m - / -21 EB4HDM -4 / - 4 ✓ Closing fragment
10-23 15:43 10m - / -18 EC4AKD -14 / - 3 ✓ Closing fragment
10-23 13:42 10m -15 / - RA3FD - / -16 2 ✓ Closing fragment
10-23 07:35 40m - / - M0IEP -18 / - 2 Partial capture
10-23 07:02 40m - / - ON5RZ -16 / - 4 Partial capture
10-23 07:01 40m - / - PA0SNY -15 / - 5 Partial capture
10-23 07:00 40m - / - F5PSP -20 / - 2 Partial capture
10-23 06:51 40m - / -23 S55A 0 / - 3 Partial capture
10-23 06:41 40m - / - DL6FC -7 / - 7 Partial capture
10-23 06:36 40m - / -6 PC6A +2 / - 3 ✓ Closing fragment
10-23 06:31 40m - / -5 F5JSQ +5 / - 3 ✓ Closing fragment
10-23 06:28 40m - / - DL6FC -13 / - 8 Partial capture
10-23 06:26 40m - / -18 S55A +1 / - 2 Partial capture
10-23 06:20 40m - / - DL9YNG -14 / - 3 Partial capture
10-23 06:04 40m - / -14 S55A 0 / - 6 Partial capture
10-23 06:02 40m - / -8 OM3PC -4 / - 2 ✓ Closing fragment
10-23 05:57 40m - / -11 IK4JPP -8 / - 2 Partial capture
10-23 05:51 40m - / - YO6BLU -4 / - 2 Partial capture
10-23 05:51 40m - / - SQ2PHC -5 / - 2 Partial capture
10-23 05:46 40m - / - YT3BL +3 / - 9 Partial capture
10-23 05:44 40m - / -11 IZ3CGL -8 / - 6 Partial capture
10-23 05:44 40m - / - SV1ENM -6 / - 10 Partial capture
10-23 05:44 40m - / - YO6BLU -4 / - 6 Partial capture
10-23 05:43 40m - / - PD1EN -12 / - 2 Partial capture
10-23 05:38 40m - / - YO6BLU -7 / - 3 Partial capture
10-23 05:37 40m - / - YT3BL +7 / - 5 Partial capture
10-23 05:34 40m - / - SV1ENM -9 / - 9 Partial capture
10-23 05:28 40m - / - SV1ENM -9 / - 3 Partial capture
10-23 05:28 40m - / - I6PJC -16 / - 2 Partial capture
10-23 05:26 40m - / - IW0DCR -16 / - 2 Partial capture
10-23 05:24 40m - / +3 IK2JBY +2 / - 3 ✓ Closing fragment
10-23 05:16 40m - / -20 SV1ENM -2 / - 8 Partial capture
10-23 05:01 40m - / -24 UA4FKT 0 / - 7 ✓ Closing fragment
10-23 04:55 40m - / - SV1ENM -7 / - 27 Partial capture
10-23 04:54 40m - / - UA4FKT -6 / - 2 Partial capture
10-23 04:47 40m - / - SV1ENM +1 / - 6 Partial capture
10-23 04:39 40m - / - SV1ENM +11 / - 5 Partial capture
10-23 04:35 40m - / - SV1ENM +2 / - 3 Partial capture
10-23 04:18 40m - / - SV1ENM -16 / - 4 Partial capture
10-23 04:08 40m - / - SV1ENM -11 / - 3 Partial capture
10-23 03:53 40m - / - RA3THN -13 / - 5 Partial capture
10-23 03:44 40m - / - RA3THN -16 / - 3 Partial capture
10-23 03:39 40m - / -17 DL6UJ -9 / - 5 ✓ Closing fragment
10-23 03:29 40m - / - SV1ENM -14 / - 8 Partial capture
10-23 03:27 40m - / -18 RA6ABO -20 / - 4 Partial capture
10-23 03:26 40m - / - SV1ENM +5 / - 2 Partial capture
10-23 02:57 40m - / - RV9CD -14 / - 5 Partial capture
10-22 03:06 40m -19 / - YO5QDN - / -20 5 Partial capture
10-22 03:01 40m -19 / -3 RC9A -21 / -2 6 ✓ Full exchange observed
10-22 03:01 40m -18 / - DM1EE - / -16 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

10m 
UTC    dB Audio  Message
143645 -16 1072  CQ PY7ZC HI21 (x2)
144445 -19 1072  RD3FY PY7ZC RR73
145245 -18 1072  N3UO PY7ZC RR73
145315 -15 1072  CQ PY7ZC HI21
145415 -18 1072  YL2QV PY7ZC RR73
150245 -17 1072  PY5FI PY7ZC -06
150645 -13 1072  R6OH PY7ZC -10
154330 -15 1063  PY7ZC EC4AKD R-18 (x3)
155330 -11 1075  PY7ZC EB4HDM IN80 (x4)
40m 
UTC    dB Audio  Message
065245  +4 2720  PY7ZC S55A -23
070015 -19 1643  PY7ZC F5PSP JN07 (x2)
070145 -13 1142  PY7ZC PA0SNY JO22 (x2)
070215 -16  992  PY7ZC ON5RZ JO21
070245 -15 1142  PY7ZC PA0SNY JO22
070245 -15  992  PY7ZC ON5RZ JO21
070315 -16 1142  PY7ZC PA0SNY JO22
070315 -15  992  PY7ZC ON5RZ JO21
070345 -15 1142  PY7ZC PA0SNY JO22
070345 -16  992  PY7ZC ON5RZ JO21
072345  -8 1143  PY7ZC ON8DM JO10
073545 -18 2134  PY7ZC M0IEP IO91 (x2)
60m 
UTC    dB Audio  Message
022500 -18 2418  PY7ZC SP9JZU JN99
022500  +6 1350  PY7ZC HB9KNY JN47 (x2)
022600 -17 2418  PY7ZC SP9JZU JN99
022600  +6 1350  PY7ZC HB9KNY JN47 (x2)
022700 -19 1271  PY7ZC SP9JZU JN99
022700  -3 1350  PY7ZC HB9KNY JN47
022730 -14 1774  PY7ZC ON1JP -06 (x3)
023100  -4 1350  PY7ZC HB9KNY JN47 (x4)

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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