HB9TLL — reception at SO8OO

Observed FT8 message patterns

Attributed sample

1,624 messages

Active dates

56 UTC dates

Estimated median S/N

-11 dB

Estimated 10th-90th percentile

-18 to -4.7 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 307, moderate (-15 to -9 dB) 830, strong (≥ -8 dB) 487.

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 HB9TLL 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 HB9TLL

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

JN47 · 1,005 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

975 km (approx.)

Last such locator decoded

2026-11-05 21:52 UTC

Other locator fields attributed to this token: KM08 (22).

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
214700 -14 1146  CQ HB9TLL JN47
214730  -6 1145  GM4YTD HB9TLL -20 (x3)
214900 -14 1145  CQ HB9TLL JN47 (x6)
215245 -17 1284  HB9TLL PI4APD JO22
215300 -10 1145  PI4APD HB9TLL -09
215315 -17 1284  HB9TLL PI4APD R-06
215330 -12 1145  PI4APD HB9TLL RR73
215345 -15 1285  HB9TLL PI4APD 73

UTC    dB Audio  Message
184800 -11 1151  CQ HB9TLL JN47                        a1 (x3)
184945  -8  939  HB9TLL IW2NPQ -12
185000  -7 1151  IW2NPQ HB9TLL R-11
185015 -12  939  HB9TLL IW2NPQ -12
185030 -16 1151  IW2NPQ HB9TLL R-08
185115  -8  938  HB9TLL IW2NPQ RR73
185130 -16 1151  IW2NPQ HB9TLL 73
185530  -9 1151  CQ HB9TLL JN47 (x3)
190345 -13 1152  HB9TLL M8FQT IO93
190400 -11 1151  CQ HB9TLL JN47
190445 -11 1151  HB9TLL M8FQT IO93

UTC    dB Audio  Message
183645  +6  540  HB9TLL DD8BA JO42
183700  -7 1437  IK1AIL HB9TLL RR73
183715  +7  540  HB9TLL DD8BA JO42 (x5)
184315  -2 1378  HB9TLL OM5CX JN98 (x3)
184600 -23 1437  CQ HB9TLL JN47 (x3)
184715  +3 1109  HB9TLL RX3ASQ KO95 (x2)

UTC    dB Audio  Message
092230 -23 1745  CQ HB9TLL JN47
092715 -12 1744  HB9TLL SP7ROM JO91
174615 -14 1746  HB9TLL RC6OG KN98 (x2)
165945 -14 1465  HB9TLL CT1END/P R+01
191700 -10 2381  RI1FJL HB9TLL JN47 (x4)
192415 -10 2463  HB9TLL R3ZBY RR73
175200  -4 2492  SV7LYG HB9TLL JN47
180615  -8  824  HB9TLL CT2HEX IM58 (x3)
180745 -12 1656  HB9TLL R6HD LN15

UTC    dB Audio  Message
191930 -22 1762  CQ HB9TLL JN47
192215 -19 1525  HB9TLL PA1GLD JO21 (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.