HI3CH — 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: Dominican Republic Most frequent locator attributed to this token: FK49

Receiver-side FT8 activity involving HI3CH, decoded by SO8OO in southeastern Poland. 223 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, across 18 UTC dates in the available aggregate history. Observed between 2026-07-07 and 2026-10-22.

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 223 FT8 messages attributed to HI3CH as the transmitting token by decoded message structure across 18 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (42%), followed by 20 m (40%) and 60 m (18%). Most decodes (79%) fell within the six-hour window 00:00-06:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (93%); the estimated median was -21 dB.

Overview

223
Messages attributed
18
UTC dates decoded
47
Active 15-min windows
-21 dB
Estimated median S/N

Bands

60m · 40 40m · 93 20m · 90
First attributed message: 2026-07-07
Last attributed message: 2026-10-22 05:29 UTC

Observed FT8 message patterns

Attributed sample
223 messages
Active dates
18 UTC dates
Estimated median S/N
-21 dB
Estimated 10th-90th percentile
-24 to -17 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 207, moderate (-15 to -9 dB) 16, 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 HI3CH 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 HI3CH

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 · 122 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,556 km (approx.)
Last such locator decoded
2026-10-22 05:29 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 UTCBandHI3CH S/NCounterpartCounterpart S/NMsgsCapture
10-22 05:31 40m - / - HB9TIH 0 / - 3 Partial capture
10-22 05:30 40m - / - F8VNU -12 / - 6 Partial capture
10-22 05:27 40m - / - SV1DKR -8 / - 2 Partial capture
10-22 05:26 40m - / - RW3XZ -8 / - 4 Partial capture
10-22 05:22 40m - / - IC8TEM -4 / - 8 Partial capture
10-22 05:22 40m - / - SV1DKR -6 / - 2 Partial capture
10-22 05:18 40m - / - F6DZU +6 / - 6 Partial capture
10-22 05:16 40m - / - SV1DKR -12 / - 2 Partial capture
10-22 05:15 40m - / - F8VNU 0 / - 7 Partial capture
10-21 05:31 40m - / - DH5BM -6 / - 4 Partial capture
10-21 05:27 40m - / - IN3ZWF -1 / - 6 Partial capture
10-21 05:26 40m - / - DH1DAC +2 / - 9 Partial capture
10-21 05:26 40m - / - DL6RS +5 / - 7 Partial capture
10-21 05:25 40m - / -18 DL9YEH -4 / - 14 Partial capture
10-21 05:25 40m - / - F4CWZ 0 / - 3 Partial capture
10-21 05:25 40m - / - G6PWS -10 / - 15 Partial capture
10-21 05:25 40m - / - ON4DKS -14 / - 4 Partial capture
10-21 05:25 40m - / -12 RU3ACA -6 / - 5 Partial capture
10-21 05:22 40m -22 / -1 EA5ET -13 / -19 6 ✓ Full exchange observed
10-21 05:20 40m - / - DH1JG -7 / - 2 Partial capture
10-21 05:19 40m - / -13 F4EXC -5 / - 6 Partial capture
10-21 05:17 40m - / - DG1KFR -12 / - 6 Partial capture
10-21 05:15 40m - / -13 RU3ACA -1 / - 6 Partial capture
10-21 05:15 40m - / - UT8EU 0 / - 11 Partial capture
10-21 05:15 40m - / - UA3IHJ -6 / - 4 Partial capture
10-21 05:15 40m -19 / - KO4L - / -16 2 Partial capture
10-21 05:13 40m -20 / - F4DIA -11 / - 2 ✓ Closing observed
10-21 05:13 40m - / - PA4A -11 / - 3 Partial capture
10-21 05:12 40m - / - DH5BM -21 / - 2 Partial capture
10-21 05:11 40m - / - RD3FY -4 / - 5 Partial capture
10-21 05:08 40m -18 / - KO4L - / -16 2 ✓ Closing fragment
10-21 05:04 40m - / - EA3IAZ -20 / - 2 Partial capture
10-21 05:03 40m -19 / -5 CT7BRV -6 / -18 12 ✓ Full exchange observed
10-21 05:02 40m -20 / - W7IUV - / -10 2 ✓ Closing fragment
10-21 05:01 40m - / -18 R1AP +15 / - 5 Partial capture
10-21 05:01 40m - / - I5UOA -3 / - 8 Partial capture
10-21 05:00 40m - / -20 YT2TW -4 / - 5 Partial capture
10-21 05:00 40m - / - 9A2WA -6 / - 3 Partial capture
10-21 04:56 40m - / - IU4UFT -12 / - 5 Partial capture
10-21 04:54 40m - / -14 RU3ACA -8 / - 7 Partial capture
10-21 04:54 40m - / -11 UR3HC -8 / - 2 Partial capture
10-21 04:54 40m - / - DK8FG -9 / - 2 Partial capture
10-21 04:49 40m - / -14 EA2KV -2 / - 2 ✓ Closing fragment
10-21 04:43 40m - / -11 F4ELU -8 / - 2 Partial capture
10-21 04:39 40m - / - F5OYA/P -20 / - 7 Partial capture
10-21 04:37 40m - / - RC1C -18 / - 7 Partial capture
10-21 04:34 40m - / -12 EI2IXB -3 / - 3 ✓ Closing fragment
10-21 04:30 40m - / -16 F4FSY -6 / - 3 Partial capture
10-21 04:29 40m - / - F5OYA/P -13 / - 10 Partial capture
10-21 04:28 40m - / - RD3FY -10 / - 5 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
052700  -8 1670  HI3CH RW3XZ KO85
052730  -9 2139  HI3CH SV1DKR KM18
052730 -11 1670  HI3CH RW3XZ KO85 (x2)
052915 -24 1871  TO4A HI3CH FK49
052945 -24 1871  CQ HI3CH FK49                         a1
053030 -10  851  HI3CH F8VNU JN13
053100  +4 1795  HI3CH HB9TIH JN36
053100 -11  851  HI3CH F8VNU JN13
053130  -2 1795  HI3CH HB9TIH JN36
053130 -11  851  HI3CH F8VNU JN13
053200  -2 1795  HI3CH HB9TIH JN36
053200 -12  851  HI3CH F8VNU JN13 (x3)
60m 
UTC    dB Audio  Message
040400 -17 2034  HI3CH F4GAJ IN99
040415 -22 1632  CQ HI3CH FK49
040430 -22 2034  HI3CH F4GAJ IN99
040500 -17 1967  HI3CH OH2MA KP31
040500 -13 2034  HI3CH F4GAJ IN99
040530 -20 1806  HI3CH SP9UPH JO90
040530 -22 1967  HI3CH OH2MA KP31 (x2)
040615 -22 1631  CQ HI3CH FK49                         a1
040630 -20 1967  HI3CH OH2MA KP31
040645 -23 1632  CQ HI3CH FK49
040700 -13 1967  HI3CH OH2MA KP31 (x4)
80m 
UTC    dB Audio  Message
052230 -12 2603  HI3CH F1PBZ -13
052300 -16  699  HI3CH F6DZU IN94
052300 -10 2604  HI3CH F1PBZ -13
052330 -11  699  HI3CH F6DZU R-15
052330  -5 2603  HI3CH F1PBZ -13
052430 -13 2139  HI3CH F5USK R-18
052430  -7 2603  HI3CH F1PBZ -14 (x2)
052600 -10 1696  HI3CH EA7ALL IM88 (x2)
053200 -15 2252  HI3CH F5NLY JN08 (x2)
20m 
UTC    dB Audio  Message
200715  +7  462  HI3CH IK4LZH -05
200730 -13  458  IK4LZH HI3CH R-15
200745  +4  462  HI3CH IK4LZH RR73
200800 -18  458  IK4LZH HI3CH R-15
201245  +5  672  HI3CH G6LEE -17
201315  -4  713  HI3CH PE2K JO22 (x9)
224830 -15 2393  HI3CH YE4FNN OI37
10m 
UTC    dB Audio  Message
205330 -16 1179  HI3CH DO2SHJ JN49 (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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