9A1DR — reception at SO8OO

Observed FT8 message patterns

Attributed sample

352 messages

Active dates

31 UTC dates

Estimated median S/N

-3 dB

Estimated 10th-90th percentile

-14 to +7 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 24, moderate (-15 to -9 dB) 64, strong (≥ -8 dB) 264.

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 9A1DR 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 9A1DR

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

JN85 · 187 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

610 km (approx.)

Last such locator decoded

2026-10-31 19:47 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
041245  -1 2348  9A1DR DO5PY R+07
041300  -6 2217  DO5PY 9A1DR RR73
041315  -4 2348  9A1DR DO5PY 73
041400 -11 2216  ON8WR 9A1DR -14
041430  -4 2216  CQ 9A1DR JN85
041445  +3 2218  9A1DR DO1FZL JO50
041445  +4 1117  9A1DR DF2NV +02
041515  +8 2217  9A1DR DO1FZL R-05
041515  +2 1116  9A1DR DF2NV +02
041545  +9 2217  9A1DR DO1FZL 73
041545  +5 1117  9A1DR DF2NV +02
041600  -8 2216  DF2NV 9A1DR R+01
041615  +4 1117  9A1DR DF2NV RR73
041630  -9 2216  DF2NV 9A1DR 73
194730  -2 2530  SP7VCL 9A1DR JN85

UTC    dB Audio  Message
122945 -22 1488  9A1DR DL1EHR -10
123000 -10 1488  DL1EHR 9A1DR R-04
123015 -17 1488  9A1DR IK2ZJR JN45
123030 -12 1488  DL1EHR 9A1DR 73
123100  +3 2676  IK2ZJR 9A1DR -04 (x2)
123215  -3 2676  DK1HSI 9A1DR JN85
123230 -18 1564  9A1DR DK1HSI +02
123245  -5 2675  DK1HSI 9A1DR R-01
123300 -14 1564  9A1DR DK1HSI RR73
123315  +1 2675  DK1HSI 9A1DR 73
123330 -15 1334  9A1DR IK4TVP -13
123345  -2 2674  IK4TVP 9A1DR R+03
123400 -10 1334  9A1DR IK4TVP RR73
123415  -1 2674  IK4TVP 9A1DR 73

UTC    dB Audio  Message
101300 -13 2245  9A1DR <...> -03

UTC    dB Audio  Message
203800  -6 2160  EB3JT 9A1DR -07
203815 -10 2160  9A1DR EB3JT R-15 (x2)
204100 -20 1884  KC4DPT 9A1DR JN85
225415  +1 2679  JF0CSK 9A1DR R-03 (x2)
225745  +2 2679  5N0YEN 9A1DR JN85
230000  +0 2709  ZL4TT 9A1DR JN85 (x3)
230515  +1 2738  HI8J 9A1DR JN85 (x3)
231445 -10 2688  9A1DR VA3KTT -07 (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.