HA1DBO — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

211 messages

Active dates

10 UTC dates

Estimated median S/N

+4 dB

Estimated 10th-90th percentile

-10 to +9 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 23, strong (≥ -8 dB) 180.

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 HA1DBO 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 HA1DBO

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

JN87 · 109 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

444 km (approx.)

Last such locator decoded

2026-09-18 17:05 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
170415  -4 1878  HA1DBO DL9KM JN68 (x2)
170500  +4 1380  IV3JRW HA1DBO JN87
170515  +6  475  HA1DBO IV3JRW -04
170515  -4 1878  HA1DBO DL9KM JN68
170530  +6 1380  IV3JRW HA1DBO R-07
170545  +2  475  HA1DBO IV3JRW RR73
170545  -4 1878  HA1DBO DL9KM JN68
170600  +5 1380  IV3JRW HA1DBO 73
170615  -3 1878  HA1DBO DL9KM JN68
170700  +4 1381  UA4FKT HA1DBO -05 (x2)
170745  -5 1381  HA1DBO UA4FKT R-09
170800  +4 1380  UA4FKT HA1DBO RR73
170815  -6 1381  HA1DBO UA4FKT 73

UTC    dB Audio  Message
114215  +3  272  HA1DBO RX9ABI -12 (x2)
114245  -5 1375  HA1DBO EB3JT JN01
114315  +4  271  HA1DBO RX9ABI -12
114315  -9 1375  HA1DBO EB3JT R-10
114345  +3  271  HA1DBO RX9ABI -12
114345 -12 1375  HA1DBO EB3JT 73
114445 +10  583  HA1DBO F4HTA -12 (x2)
114815  -5  272  HA1DBO RX9ABI -12 (x2)
114915 -13 1375  HA1DBO G0CLH +03 (x3)
115245  -4 1195  HA1DBO PD0ACM JO21

UTC    dB Audio  Message
083745  +4  716  HA1DBO F4PCM 73
083745  -6  483  HA1DBO DK7UY JO44 (x2)
111815  -1  838  HA1DBO RN6MA +03 (x2)
115445 -11 1663  HA1DBO F4FSY -07 (x2)
100100  -3  664  HA1DBO PF1B JO22 (x3)
095945  +0  769  HA1DBO IK1MJK/P -01 (x2)
100215 -14 1222  HA1DBO EA3AKY -06 (x2)
094745  -8 1454  HA1DBO F5JUS RR73

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.