PY5JO — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Brazil Most frequent locator attributed to this token: GG54

Receiver-side FT8 activity involving PY5JO, decoded by SO8OO in southeastern Poland. 23 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-07-29.

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 23 FT8 messages attributed to PY5JO as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (96%), followed by 20 m (4%). Several six-hour UTC windows tied for the largest share (91%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (96%); the estimated median was -18 dB.

Overview

23
Messages attributed
3
UTC dates decoded
7
Active 15-min windows
-18 dB
Estimated median S/N

Bands

20m · 1 10m · 22
First attributed message: 2026-06-07
Last attributed message: 2026-07-29 19:30 UTC

Observed FT8 message patterns

Attributed sample
23 messages
Active dates
3 UTC dates
Estimated median S/N
-18 dB
Estimated 10th-90th percentile
-22 to -16 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 22, moderate (-15 to -9 dB) 1, 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 PY5JO in decoded directed-looking exchanges:

Most frequent locator attributed to PY5JO

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
GG54 · 19 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
10,892 km (approx.)
Last such locator decoded
2026-06-08 14:10 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 UTCBandPY5JO S/NCounterpartCounterpart S/NMsgsCapture
09-20 03:37 40m - / - RQ3M -8 / - 2 Partial capture
09-20 03:04 40m - / -22 UN7LZ -4 / - 2 Partial capture
09-19 22:56 40m - / - F4BYA +16 / - 2 Partial capture
09-19 21:27 40m - / -19 IK4YWL +8 / - 2 Partial capture
09-19 21:25 40m - / - F5PBG -1 / - 2 Partial capture
09-19 21:25 40m - / +6 ON1DGN -6 / - 7 Partial capture
09-16 01:14 40m - / -13 R9OOF -3 / - 2 ✓ Closing fragment
09-13 02:59 40m - / -17 RA3TKS -3 / - 3 Partial capture
09-09 05:54 40m - / - F4GWG -4 / - 7 Partial capture
09-09 01:53 40m - / - OH1XE -9 / - 2 Partial capture
09-09 01:16 40m - / - F5PBG -7 / - 3 Partial capture
09-09 01:06 40m - / - F5PBG -2 / - 4 Partial capture
09-09 01:01 40m - / - F5PBG +3 / - 4 Partial capture
09-09 00:43 40m - / - F5PBG -2 / - 4 Partial capture
09-09 00:29 40m - / - F5PBG +3 / - 4 Partial capture
09-09 00:01 40m - / - F5PBG 0 / - 4 Partial capture
09-08 01:04 40m - / - RA9LT -19 / - 5 Partial capture
09-07 05:39 40m - / - F4BYA +7 / - 6 Partial capture
09-07 05:33 40m - / - F4BYA +7 / - 3 Partial capture
09-07 05:04 40m - / -20 DH1JG -4 / - 5 ✓ Closing fragment
09-07 04:19 40m - / -24 SN40KZE -7 / - 4 Partial capture
09-04 02:25 40m - / -20 RA3TKS -1 / - 3 Partial capture
09-04 01:49 40m - / -16 RC9WC -12 / - 3 ✓ Closing fragment
09-04 01:45 40m - / -16 UA9CK -18 / - 2 ✓ Closing fragment
09-04 01:27 40m - / -18 DL4ME -15 / - 3 ✓ Closing fragment
09-01 22:00 40m - / -16 EA7LHH -20 / - 3 Partial capture
08-29 22:05 40m - / -14 UF4S 0 / - 2 Partial capture
08-29 02:48 40m - / - ON6AA +8 / - 2 Partial capture
08-28 02:12 40m - / -18 W4CHA -11 / - 3 ✓ Closing fragment
08-28 01:45 40m - / -15 W4DXM -12 / - 2 ✓ Closing fragment
08-27 11:29 10m - / - PY2GN -11 / - 2 Partial capture
08-24 05:17 40m - / - EA1SN -18 / - 3 Partial capture
08-21 19:16 10m - / -15 HG1DRC -14 / - 4 Partial capture
08-21 19:13 10m - / - PD2FT -12 / - 3 ✓ Closing fragment
08-21 18:49 10m - / -14 IU8QTW -13 / - 7 Partial capture
08-21 18:42 10m - / - DN9DKN -6 / - 2 Partial capture
08-21 16:57 10m - / - S59MA -14 / - 2 ✓ Closing fragment
08-21 16:54 10m - / -21 DO9PV -12 / - 6 ✓ Closing fragment
08-21 16:48 10m - / - DO9PV -14 / - 3 Partial capture
08-21 16:23 10m - / -20 DN9LUZ -4 / - 14 Partial capture
08-20 01:31 40m - / - UA9SHH -8 / - 4 Partial capture
08-20 01:26 40m - / - F4FPR -18 / - 2 Partial capture
08-19 02:03 80m - / - UT5ZC +9 / - 3 Partial capture
08-13 21:47 40m - / - DH3KR -21 / - 5 Partial capture
08-10 00:28 80m - / -9 OE9MOI +2 / - 4 Partial capture
08-09 02:01 40m - / - F5PBG -22 / - 4 Partial capture
08-09 01:13 40m - / - F5PBG -17 / - 2 Partial capture
08-09 01:09 40m - / - F5PBG -14 / - 2 Partial capture
08-09 00:19 40m - / - F5PBG -19 / - 2 Partial capture
08-08 23:54 40m - / - F5PBG -18 / - 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
212630  -3 1487  PY5JO ON1DGN +06 (x2)
212700  +6 2176  PY5JO IK4YWL -19
212730  -6 1047  PY5JO ON1DGN +06
212730 +10 2176  PY5JO IK4YWL -19
212800  -5 1047  PY5JO ON1DGN +06
225600 +16 2932  PY5JO F4BYA JN19 (x2)
231100 -11  858  PY5JO VP2MAA RR73
024330 -21 1098  PY5JO K1JAK FN53
030430  -7 2490  PY5JO UN7LZ -22 (x2)
033730  -3 2212  PY5JO RQ3M KO97 (x3)
80m 
UTC    dB Audio  Message
035900 +10 1224  PY5JO DL4ME JO50 (x4)
220800 -17  769  PY5JO CX2ACB RR73
225800  -4 1713  PY5JO IT9KHI JM77 (x2)
002800  +4 1101  PY5JO OE9MOI -09 (x4)
020300 +10 1645  PY5JO UT5ZC KN57 (x3)
030145 -10  742  PY5JO RA4FP LO13
10m 
UTC    dB Audio  Message
185200 -15 1037  PY5JO IU8QTW R-14 (x3)
190930 -16  967  PY5JO PD3WDK JO21
191300 -11  967  PY5JO PD2FT JO21 (x3)
191630 -13  967  PY5JO HG1DRC JN86 (x3)
191730  -9  866  PY5JO G1OZO RR73
191830 -14  966  PY5JO HG1DRC R-15
112900 -10  491  PY5JO PY2GN GG56 (x2)
210100  -4 2858  PY5JO DM5CY R-11
20m 
UTC    dB Audio  Message
221200 -18 1003  PY5JO DL2FX -18
224930 -17 1602  PY5JO CT2IGO IN60
201600 -10  539  PY5JO F4LNQ IN93
201600  +2 2671  PY5JO DL1R JN58 (x2)
201700 -11  540  PY5JO F4LNQ IN93
201700  +3 2671  PY5JO DL1R JN58
201730  -6  539  PY5JO F4LNQ IN93
201730  +9 2671  PY5JO DL1R JN58 (x5)
205330 -21 1661  PY5JO CT1BFP R-11 (x2)

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