HI3JMS — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Dominican Republic Most frequent locator attributed to this token: FK49

Receiver-side FT8 activity involving HI3JMS, decoded by SO8OO in southeastern Poland. 71 FT8 messages attributed to this token as transmitter, on 40m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-09-13.

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 71 FT8 messages attributed to HI3JMS as the transmitting token by decoded message structure across 7 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. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.

Overview

71
Messages attributed
7
UTC dates decoded
17
Active 15-min windows
-15 dB
Estimated median S/N

Bands

First attributed message: 2026-06-10
Last attributed message: 2026-09-13 02:29 UTC

Observed FT8 message patterns

Attributed sample
71 messages
Active dates
7 UTC dates
Estimated median S/N
-15 dB
Estimated 10th-90th percentile
-18 to -9 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 30, moderate (-15 to -9 dB) 34, strong (≥ -8 dB) 7.

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.

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 HI3JMS

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
FK49 · 43 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,556 km (approx.)
Last such locator decoded
2026-09-13 02:28 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 UTCBandHI3JMS S/NCounterpartCounterpart S/NMsgsCapture
09-13 02:29 40m -13 / - UA3GDJ - / -12 2 ✓ Closing fragment
09-13 02:10 40m - / -3 NF3R -16 / - 4 Partial capture
09-13 02:10 40m - / - UA3GDJ -18 / - 2 Partial capture
09-13 02:04 40m - / - UA3GDJ -20 / - 4 Partial capture
09-13 02:04 40m -13 / - DL9KM - / -20 3 Partial capture
09-13 02:04 40m - / - R7HL +4 / - 2 Partial capture
09-13 01:54 40m -16 / - K6YLG - / -18 3 Partial capture
09-13 01:51 40m - / -14 NF3R -21 / - 3 Partial capture
09-13 01:51 40m - / - RA6ABC -8 / - 2 Partial capture
09-13 01:47 40m -18 / - W3ACW - / -8 2 ✓ Closing fragment
09-13 01:22 40m -4 / - W6M - / - 4 Partial capture
09-13 01:08 40m - / -3 NF3R -17 / - 4 Partial capture
09-13 01:05 40m - / - EB3JT -1 / - 9 Partial capture
09-13 00:59 40m -14 / - SP1ZMO - / -18 3 Partial capture
09-13 00:55 40m - / -6 EH1SDC -10 / - 3 ✓ Closing fragment
09-13 00:52 40m - / - MI7XHT -11 / - 2 Partial capture
09-13 00:52 40m - / +1 NF3R -20 / - 3 Partial capture
09-07 04:40 40m - / +4 DK7ZT 0 / - 3 Partial capture
09-07 04:39 40m - / -7 DL8WEM +11 / - 3 ✓ Closing fragment
09-07 04:04 40m - / - SV5BYP -6 / - 5 Partial capture
09-07 04:02 40m - / -12 IU2HUQ +6 / - 2 Partial capture
09-07 03:59 40m - / -14 IZ2ACM +1 / - 2 ✓ Closing fragment
09-07 03:59 40m - / - UX2QX -3 / - 3 Partial capture
09-02 03:56 40m - / - RN1CW -12 / - 2 Partial capture
09-02 03:42 40m - / - F5SJC -8 / - 2 Partial capture
09-02 03:36 40m - / - IK8DUA -12 / - 2 Partial capture
09-02 03:32 40m - / - F6FHZ -2 / - 5 Partial capture
08-27 01:41 40m - / - OH4JFN -9 / - 4 Partial capture
08-24 03:40 40m -12 / - UT7UJ - / -13 3 Partial capture
08-24 02:14 40m - / -9 OZ1KEF -6 / - 2 ✓ Closing fragment
08-24 02:11 40m - / - DH5BM -9 / - 3 Partial capture
08-24 01:57 40m - / -14 UA4CPM +12 / - 2 ✓ Closing fragment
08-24 01:53 40m - / - UA4CPM +12 / - 2 Partial capture
08-23 05:59 40m - / - F6FTB -9 / - 2 Partial capture
08-23 05:56 40m - / - F1IQH -12 / - 2 Partial capture
08-23 05:55 40m - / - OE9DAI -14 / - 6 Partial capture
08-23 05:54 40m - / -6 G1KIK -8 / - 2 ✓ Closing fragment
08-23 05:53 40m - / -1 DK7ZT -16 / - 3 Partial capture
08-23 05:53 40m - / - IZ5IMD -2 / - 5 Partial capture
08-23 05:47 40m - / - OE9DAI -9 / - 7 Partial capture
08-23 05:45 40m - / - IK4LZH -5 / - 2 Partial capture
08-23 05:45 40m - / - IZ5IMD -5 / - 3 Partial capture
08-23 05:41 40m - / - PD1AC -8 / - 6 Partial capture
08-23 05:40 40m - / - IZ5IMD -6 / - 2 Partial capture
08-23 05:19 40m - / - OE9DAI -1 / - 10 Partial capture
08-23 05:01 40m - / -7 PA2RO -7 / - 3 Partial capture
08-22 02:24 40m - / - UA3DPM +4 / - 2 Partial capture
08-22 02:22 40m -13 / -10 DH1KJ +4 / - 4 ✓ Closing observed
08-22 02:21 40m - / - RN6HK 0 / - 2 Partial capture
08-22 02:20 40m - / - R3RB -19 / - 6 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
021045 -18 1040  CQ HI3JMS FK49
021100 -14 1874  HI3JMS NF3R -03
021100 -13 2066  HI3JMS MI7XHT IO64
021130 -17 1874  HI3JMS NF3R -03 (x2)
021615 -16 1041  CQ HI3JMS FK49                        a1 (x2)
021930 -17 1969  HI3JMS RX9WN -15
021945 -14 1042  CQ HI3JMS FK49
022045 -17 1040  ND3N HI3JMS RR73
022745 -11 1038  CQ HI3JMS FK49 (x2)
022915 -14 1039  UA3GDJ HI3JMS -12 (x2)
023100 -12 1041  HI3JMS RW9WT LO64
20m
UTC    dB Audio  Message
072745  +1  416  HI3JMS PI4DX JO21 (x3)
051215 -11  919  HI3JMS V31DL 73
051415  -7 1219  HI3JMS F5LOW -10 (x2)
054200 -18 1838  HI3JMS IZ4EFV JN64
055300 -21 1325  HI3JMS PD2WL JO22 (x3)
10m
UTC    dB Audio  Message
193830  -4 2825  HI3JMS F1PBZ -09 (x3)
201545  -8  432  HI3JMS RY6O KN87
201615 -20 2016  HI3JMS HB9GIM JN47
201645  -4  432  HI3JMS RY6O KN87 (x3)

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.

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