JJ2KDZ — 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: PM95

Receiver-side FT8 activity involving JJ2KDZ, decoded by SO8OO in southeastern Poland. 50 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-14 and 2026-09-04.

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 50 FT8 messages attributed to JJ2KDZ as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (88%), followed by 20 m (12%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (78%); the estimated median was -6 dB.

Overview

50
Messages attributed
3
UTC dates decoded
8
Active 15-min windows
-6 dB
Estimated median S/N

Bands

40m · 44 20m · 6
First attributed message: 2026-06-14
Last attributed message: 2026-09-04 20:36 UTC

Observed FT8 message patterns

Attributed sample
50 messages
Active dates
3 UTC dates
Estimated median S/N
-6 dB
Estimated 10th-90th percentile
-12 to -3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 10, strong (≥ -8 dB) 39.

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 JJ2KDZ in decoded directed-looking exchanges:

Most frequent locator attributed to JJ2KDZ

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
PM95 · 44 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,693 km (approx.)
Last such locator decoded
2026-09-04 20:36 UTC

Other locator fields attributed to this token: PM94 (6).

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 UTCBandJJ2KDZ S/NCounterpartCounterpart S/NMsgsCapture
10-16 20:30 40m - / -17 UA6FM +4 / - 2 Partial capture
10-02 20:43 40m - / -19 3Z4DX -9 / - 2 ✓ Closing fragment
10-01 20:51 40m - / - R7ZY -2 / - 3 Partial capture
09-28 20:30 40m - / -16 LZ1GC -20 / - 4 Partial capture
09-28 20:30 40m - / -23 R2DN +3 / - 8 ✓ Closing fragment
09-28 20:28 40m - / -8 LX1JH +14 / - 2 ✓ Closing fragment
09-26 20:06 40m - / -13 PI4DX +10 / - 5 Partial capture
09-23 18:57 40m - / -20 DK7ZT -19 / - 2 Partial capture
09-18 21:06 40m - / -12 UA4FKT +10 / - 4 ✓ Closing fragment
09-17 20:28 40m - / -22 M5BFL +9 / - 2 ✓ Closing fragment
09-11 19:42 40m - / - DF8AA +10 / - 2 Partial capture
09-04 20:33 40m -3 / - CN8NS - / - 8 Partial capture
09-04 20:24 40m - / - PD0IFI +7 / - 4 Partial capture
09-04 20:20 40m -5 / - CN8NS - / - 3 Partial capture
09-04 20:10 40m -5 / - CN8NS - / - 10 Partial capture
09-04 20:00 40m -6 / - CN8NS - / - 3 Partial capture
09-02 20:29 40m - / - R3YCJ +1 / - 2 Partial capture
09-02 20:26 40m -6 / - CN8NS - / - 12 Partial capture
09-02 20:18 40m -14 / - CN8NS - / - 2 Partial capture
09-02 20:13 40m -11 / - CN8NS - / - 4 Partial capture
09-01 20:29 40m - / - R7ZY +2 / - 2 Partial capture
08-22 17:28 20m - / -19 F4IVG +7 / - 2 Partial capture
08-12 15:48 20m - / - DA1VID -4 / - 3 Partial capture
08-10 20:13 20m - / -20 F4GRW -14 / - 2 Partial capture
08-10 20:06 20m - / -19 F4GRW -16 / - 3 Partial capture
08-07 17:07 20m - / - EA3NE +16 / - 4 Partial capture
08-07 17:03 20m - / - ON7NQ -7 / - 2 Partial capture
08-04 20:21 40m - / -21 GW8DX -13 / - 3 ✓ Closing fragment
08-03 19:38 40m - / - RA4Y -8 / - 4 Partial capture
07-26 18:21 20m - / -3 DL6EL +2 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
203245  +3 2597  JJ2KDZ R2DN KO95 (x5)
204930  -8 1612  JJ2KDZ 5B4AMM -24
205000  -4 1612  JJ2KDZ RR73; JO4LKR <...> -18
205100  -3 2472  JJ2KDZ R7ZY KN98 (x3)
204300  -9  635  JJ2KDZ 3Z4DX -19 (x2)
204400  -8 1999  JJ2KDZ OH1TSM KP11
203015  +4  462  JJ2KDZ UA6FM -17 (x2)
20m 
UTC    dB Audio  Message
170900  -5 3032  JJ2KDZ ON7NQ JO21
170900 +16 2892  JJ2KDZ EA3NE JN11
181630 -14  470  JJ2KDZ TT1GD -13
181730 -12  410  JJ2KDZ RR73; DC1ASE <...> -20
200645 -16 2153  JJ2KDZ F4GRW -19 (x5)
203130  +4 2563  JJ2KDZ EA1B -21
154815  -5  548  JJ2KDZ DA1VID JO31 (x3)
172830  +6 2381  JJ2KDZ F4IVG -19 (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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