MJ9JSY — 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: Jersey Most frequent locator attributed to this token: IN89

Receiver-side FT8 activity involving MJ9JSY, decoded by SO8OO in southeastern Poland. 37 FT8 messages attributed to this token as transmitter, on 40m, across 4 UTC dates in the available aggregate history. Observed between 2026-10-06 and 2026-10-11.

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 37 FT8 messages attributed to MJ9JSY 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 (100%). 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 moderate S/N range (65%); the estimated median was -11 dB.

Overview

37
Messages attributed
4
UTC dates decoded
9
Active 15-min windows
-11 dB
Estimated median S/N

Bands

40m · 37
First attributed message: 2026-10-06
Last attributed message: 2026-10-11 18:36 UTC

Observed FT8 message patterns

Attributed sample
37 messages
Active dates
4 UTC dates
Estimated median S/N
-11 dB
Estimated 10th-90th percentile
-16 to -2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 24, strong (≥ -8 dB) 9.

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 MJ9JSY 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 MJ9JSY

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
IN89 · 13 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,775 km (approx.)
Last such locator decoded
2026-10-11 18:36 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 UTCBandMJ9JSY S/NCounterpartCounterpart S/NMsgsCapture
10-12 11:18 40m - / -25 PB0ACU -18 / - 2 Partial capture
10-12 11:03 40m - / -25 DF9CK -16 / - 2 Partial capture
10-12 10:46 40m - / - DJ1TU -15 / - 4 ✓ Closing fragment
10-12 10:45 40m - / -11 DM5KM -8 / - 3 ✓ Closing fragment
10-12 07:55 40m - / -6 DK1WU +2 / - 2 ✓ Closing fragment
10-12 07:52 40m - / - ON2ACO -19 / - 6 Partial capture
10-12 07:50 40m - / -14 OE6GBG -2 / - 8 ✓ Closing fragment
10-12 07:45 40m - / -25 DL6RS -5 / - 4 Partial capture
10-12 07:36 40m - / -20 DL7GAL -8 / - 5 Partial capture
10-12 07:32 40m - / -11 F4MXT/P -15 / - 5 ✓ Closing fragment
10-12 07:29 40m - / - HB9ELE +5 / - 5 Partial capture
10-12 07:14 40m - / -15 I4BUQ -7 / - 5 ✓ Closing fragment
10-12 07:13 40m - / -17 DL2NB -4 / - 2 Partial capture
10-12 06:56 40m - / - HB9ELE +11 / - 5 Partial capture
10-12 06:52 40m - / -23 IV3XHF +2 / - 6 ✓ Closing fragment
10-12 06:44 40m - / -18 DF1SD -7 / - 3 Partial capture
10-12 06:43 40m - / - PA0MUS -4 / - 4 Partial capture
10-12 06:43 40m - / - SQ9LFQ -4 / - 4 Partial capture
10-12 06:39 40m - / -4 ON5HE -4 / - 6 ✓ Closing fragment
10-12 06:39 40m - / - SP9W -1 / - 2 Partial capture
10-12 06:38 40m - / - 9A4N -6 / - 2 Partial capture
10-12 06:36 40m - / -15 DL4ME +1 / - 5 ✓ Closing fragment
10-12 06:33 40m - / - PE1NPS -6 / - 3 ✓ Closing fragment
10-12 06:31 40m - / -21 IK4JPP -9 / - 2 Partial capture
10-12 06:30 40m - / -9 OM0RX -5 / - 4 ✓ Closing fragment
10-12 06:28 40m - / - IK4RVY -11 / - 11 Partial capture
10-12 06:27 40m - / - IV3XHF +2 / - 5 Partial capture
10-12 06:27 40m - / -10 DJ0MAB +1 / - 4 ✓ Closing fragment
10-11 18:36 40m - / -12 IK6DLK -1 / - 3 ✓ Closing fragment
10-11 18:33 40m - / -10 DG3DAF -8 / - 3 ✓ Closing fragment
10-11 18:32 40m - / - IK6DLK -1 / - 2 Partial capture
10-10 19:01 40m -12 / - UT8NL - / -18 6 ✓ Closing fragment
10-10 18:49 40m - / -9 I1RJP +9 / - 3 ✓ Closing fragment
10-10 18:32 40m -16 / - US2YW - / -14 2 Partial capture
10-10 18:15 40m - / -14 IU2OQT +1 / - 2 ✓ Closing fragment
10-10 18:07 40m - / -10 DJ5PT -8 / - 3 ✓ Closing fragment
10-10 18:05 40m - / +1 IU2THY +9 / - 2 Partial capture
10-10 18:04 40m - / -13 IK4JPP -2 / - 3 Partial capture
10-10 18:01 40m - / -13 DK8HC/P -5 / - 3 ✓ Closing fragment
10-10 17:58 40m - / -13 IW2CAK -7 / - 3 Partial capture
10-10 17:51 40m - / - DL2MED -8 / - 4 Partial capture
10-10 17:51 40m - / - EA3HMM +8 / - 3 Partial capture
10-10 17:46 40m - / -6 DK7ZT -6 / - 4 ✓ Closing fragment
10-09 19:53 80m - / - G4RWD -24 / - 2 Partial capture
10-09 19:47 40m - / - EA3CU -10 / - 4 Partial capture
10-07 19:39 40m - / - F4JTP -9 / - 4 Partial capture
10-07 19:37 40m -8 / -5 M0IEP -16 / -17 4 ✓ Full exchange observed
10-07 19:35 40m -10 / - M1JYN - / -3 2 ✓ Closing fragment
10-07 19:27 40m - / - OH6DHM -8 / - 2 Partial capture
10-07 19:23 40m - / - OH6DHM -2 / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
075645 -17 1789  MJ9JSY ON2ACO JO11
075845  -9  980  MJ9JSY IK4JPP -16 (x2)
104545  -6 2579  MJ9JSY DM5KM JO43 (x2)
104615 -10 2206  MJ9JSY DJ1TU JN48
104645 -10 2579  MJ9JSY DM5KM 73
104645 -11 2206  MJ9JSY DJ1TU JN48 (x3)
110315 -17 2149  MJ9JSY DF9CK JN58 (x2)
111045 -22 2149  MJ9JSY DL4DBM 73
111815 -17 2150  MJ9JSY PB0ACU JO22 (x2)
80m 
UTC    dB Audio  Message
195315 -23 2343  MJ9JSY G4RWD IO92 (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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