JA1PSS — 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: Japan Most frequent locator attributed to this token: PM96

Receiver-side FT8 activity involving JA1PSS, decoded by SO8OO in southeastern Poland. 286 FT8 messages attributed to this token as transmitter, on 20m, across 32 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-08-30.

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 286 FT8 messages attributed to JA1PSS as the transmitting token by decoded message structure across 32 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.

Overview

286
Messages attributed
32
UTC dates decoded
74
Active 15-min windows
-7 dB
Estimated median S/N

Bands

20m · 286
First attributed message: 2026-06-06
Last attributed message: 2026-08-30 21:26 UTC

Observed FT8 message patterns

Attributed sample
286 messages
Active dates
32 UTC dates
Estimated median S/N
-7 dB
Estimated 10th-90th percentile
-16 to +3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 33, moderate (-15 to -9 dB) 91, strong (≥ -8 dB) 162.

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 JA1PSS 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 JA1PSS

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
PM96 · 101 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,603 km (approx.)
Last such locator decoded
2026-08-30 21:25 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 UTCBandJA1PSS S/NCounterpartCounterpart S/NMsgsCapture
11-03 18:54 80m - / -17 YO4NT -6 / - 2 ✓ Closing fragment
11-03 18:39 80m - / -25 ES2AJ +5 / - 2 ✓ Closing fragment
11-02 19:40 80m - / -19 SP3SLA +10 / - 3 ✓ Closing fragment
10-29 18:54 40m - / -14 UR6QA -9 / - 5 ✓ Closing fragment
10-29 18:52 40m - / -18 M5BFL +2 / - 2 ✓ Closing fragment
10-29 18:47 40m - / - R3SX -12 / - 2 Partial capture
10-29 18:44 40m - / -22 SM0EJR +2 / - 2 Partial capture
10-28 19:28 40m - / - RZ4FWA -14 / - 2 Partial capture
10-14 19:21 40m - / - UF5F -2 / - 2 Partial capture
10-14 18:58 40m - / -18 Z33PB -6 / - 2 ✓ Closing fragment
10-14 18:56 40m - / -24 TA2VUZ -11 / - 3 ✓ Closing fragment
10-09 19:17 40m - / -9 9A7W +8 / - 2 ✓ Closing fragment
10-09 18:48 40m - / -11 EX7CQ -10 / - 2 ✓ Closing fragment
10-08 18:59 40m - / -16 Z34K +6 / - 2 Partial capture
10-08 18:56 40m - / - R3DLK -2 / - 4 Partial capture
09-21 19:37 40m - / - LZ2PC -8 / - 3 Partial capture
09-21 19:36 40m - / -22 YO4BXX +6 / - 2 Partial capture
09-21 19:35 40m - / -22 IW9HPG +3 / - 3 ✓ Closing fragment
09-21 19:28 40m - / -15 LZ7DX -4 / - 2 ✓ Closing fragment
09-06 19:47 40m - / -11 SY1BKQ +5 / - 2 Partial capture
09-04 20:04 40m - / - 9A7BB -8 / - 3 Partial capture
09-01 19:28 40m - / -15 ES2AJ -6 / - 2 ✓ Closing fragment
08-31 20:11 20m - / - GW4RDW +6 / - 2 Partial capture
08-31 19:29 20m - / -18 G3PDQ +10 / - 2 ✓ Closing fragment
08-30 21:25 20m -8 / - G1VAQ - / - 2 ✓ Closing fragment
08-30 21:23 20m -4 / - F4ISR -10 / -14 3 ✓ Closing observed
08-30 21:17 20m - / - ME7IEB -4 / - 2 Partial capture
08-30 21:15 20m -6 / - PA3HEA - / - 2 ✓ Closing fragment
08-27 21:50 20m - / -14 PD2LM -20 / - 3 ✓ Closing fragment
08-26 21:35 20m - / -20 MW7GQB +11 / - 3 ✓ Closing fragment
08-26 20:08 20m -2 / - G4BLI - / - 2 Partial capture
08-26 20:01 20m -12 / - G1CEC - / - 2 Partial capture
08-26 20:00 20m -2 / -9 GI4OGS -2 / -12 7 ✓ Full exchange observed
08-26 19:11 20m - / - SP3DT -6 / - 2 Partial capture
08-26 18:53 20m -10 / - M6ILA - / - 2 Partial capture
08-26 18:52 20m -8 / -12 IZ0GIY +12 / - 3 ✓ Closing observed
08-26 18:44 20m -17 / - UX0CZ - / -6 2 ✓ Closing fragment
08-26 18:42 20m -17 / -11 CT1CIH -6 / -15 4 ✓ Full exchange observed
08-25 20:10 20m - / -15 PD0DDA -1 / - 2 ✓ Closing fragment
08-25 19:16 20m - / - DL2JB -9 / - 4 ✓ Closing fragment
08-25 19:14 20m - / - IU5SCG +10 / - 4 Partial capture
08-25 19:06 20m - / - PD0DDA +10 / - 4 Partial capture
08-25 18:59 20m - / - EA4IAH +5 / - 2 Partial capture
08-25 18:59 20m -15 / -16 PD1BU +9 / - 5 ✓ Closing observed
08-25 18:54 20m - / -14 G4VJL 0 / - 3 Partial capture
08-24 20:12 20m - / - YO7LPM +1 / - 2 Partial capture
08-23 21:45 20m -10 / - OH4LRP - / - 3 ✓ Closing fragment
08-23 21:18 20m -7 / -8 EA8BYZ 0 / -8 10 ✓ Full exchange observed
08-23 19:58 20m -1 / - KK7ZEQ - / -21 3 Partial capture
08-23 19:51 20m +2 / - YU1OTW - / -21 5 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
185300 -10  471  JA1PSS UB6OAJ -17
194030 +13 2742  JA1PSS SP3SLA -19 (x3)
183945  +7  886  JA1PSS ES2AJ -25 (x2)
185415  -6 2049  JA1PSS YO4NT -17 (x2)
40m 
UTC    dB Audio  Message
192145  +0 1982  JA1PSS UF5F KO98 (x2)
192845 -15 1721  JA1PSS RZ4FWA LO23 (x2)
184430  +6  400  JA1PSS SM0EJR -22 (x2)
184700 -10 1211  JA1PSS R3SX LO03 (x2)
185200  +3 1852  JA1PSS M5BFL -18 (x2)
185430 -14 2290  JA1PSS UR6QA KN77 (x5)
20m 
UTC    dB Audio  Message
210915  +0  459  M0GQC JA1PSS PM96
211515  -7  459  PA3HEA JA1PSS PM96 (x2)
211700  -1  458  JA1PSS ME7IEB IO91 (x2)
211900  -2  458  F4FBC JA1PSS PM96
212315  -5 2927  F4ISR JA1PSS PM96 (x2)
212400 -10 2925  JA1PSS F4ISR RR73
212530  -8  668  G1VAQ JA1PSS PM96 (x2)
192945 +15 2907  JA1PSS G3PDQ -18 (x2)
201145  +5 1818  JA1PSS GW4RDW IO81 (x2)

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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