HI8DX — reception at SO8OO

Observed FT8 message patterns

Attributed sample

780 messages

Active dates

15 UTC dates

Estimated median S/N

-9 dB

Estimated 10th-90th percentile

-17 to 0 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 133, moderate (-15 to -9 dB) 279, strong (≥ -8 dB) 368.

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 HI8DX 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 HI8DX

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

FK58 · 117 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

8,500 km (approx.)

Last such locator decoded

2026-09-29 01:23 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.

Recent FT8 messages decoded at SO8OO

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

UTC    dB Audio  Message
014945  +9 1904  HI8DX SP7MOQ KO10
015115  -8 2443  HI8DX HB9HFN JN36
015245  +1 1177  HI8DX IZ8VYU JN71
015315  -2 2443  HI8DX HB9HFN JN36 (x2)
015445  -1 1177  HI8DX IZ8VYU JN71
015445 +16  676  HI8DX IW0FFK JN61
015515  -3 1604  HI8DX LA9JKA JP32 (x8)

UTC    dB Audio  Message
063815  -7  873  HI8DX PA3CPS JO32
063815 -12 1262  HI8DX DO2BBC JO41
064345 -12 1149  HI8DX DK7ZT -05
064345  +1  872  HI8DX DA1ST JO41
064415  -8 1149  HI8DX DK7ZT -05
064415  +0  872  HI8DX DA1ST JO41
064445  -3 1149  HI8DX DK7ZT -05 (x3)
064615 -23 1906  HI8DX PA7RA JO21 (x6)

UTC    dB Audio  Message
062915  +3  969  HI8DX DK3GI JN59

UTC    dB Audio  Message
050630  +0  939  TK5AE HI8DX RR73
050645 -15 1421  HI8DX R2DRE -14
050645 +15 1109  HI8DX DL3MIB JN57
050715 -11 1421  HI8DX R2DRE -14
050715 +20 1109  HI8DX DL3MIB JN57
050745  -6 1420  HI8DX R2DRE -14
050745 +19 1109  HI8DX DL3MIB JN57 (x5)
075315  +1 1119  RI1FJL HI8DX FK58 (x4)

UTC    dB Audio  Message
201700 -19 1781  HI8DX LZ2EW KN13
202100  -9 2685  HI8DX F1PBZ -07 (x2)
202500 -13 2480  HI8DX DL2MIJ JN58
203215 -12  679  ZB2FTY HI8DX -13

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.