SA7DXR — reception at SO8OO

Observed FT8 message patterns

Attributed sample

282 messages

Active dates

26 UTC dates

Estimated median S/N

-2 dB

Estimated 10th-90th percentile

-12 to +9 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 14, moderate (-15 to -9 dB) 49, strong (≥ -8 dB) 219.

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 SA7DXR 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 SA7DXR

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

JO76 · 189 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

858 km (approx.)

Last such locator decoded

2026-10-21 05:40 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
053745  +6 2922  N2LEE SA7DXR RR73
053815  +3 2922  RC9WC SA7DXR R-04
053830 -20 1241  SA7DXR UR9QQ KN77
053830  -4 2922  SA7DXR IX1CVF JN35
053845  -2 2922  RC9WC SA7DXR 73
053900  +0 2922  SA7DXR IX1CVF JN35
053915  +5 2923  IX1CVF SA7DXR -02
053930 -15 1242  SA7DXR UR9QQ KN77
053930  +0 2922  SA7DXR IX1CVF R-22
053945  +0 2923  IX1CVF SA7DXR RR73
054000  +2 2922  SA7DXR IX1CVF 73
054015  -3 2922  CQ DX SA7DXR JO76
054100 -16 1241  SA7DXR UR9QQ KN77 (x3)

UTC    dB Audio  Message
204645  +3 2806  CQ DX SA7DXR JO76
204800  -7  209  R2AL SA7DXR -05
204830 -12  209  CQ DX SA7DXR JO76 (x6)
205115  -2  270  SA7DXR RA6OY KN88
205115 -10 2015  SA7DXR ON4MAP JO20
205145  +7  270  SA7DXR RA6OY KN88 (x5)

UTC    dB Audio  Message
212915  -5 2748  SA7DXR LX1JX -11 (x2)
220845 -15 1075  RI1FJZ SA7DXR JO76
222900 -15 1141  SA7DXR DK7ZT -13 (x3)
230445 -19 1399  LA9JKA SA7DXR JO76
230500  -4 1558  SA7DXR LA9JKA -04
230515 -21 1400  LA9JKA SA7DXR R+01
230530 -13 1558  SA7DXR LA9JKA RR73
230545 -13 1400  LA9JKA SA7DXR 73

UTC    dB Audio  Message
162745 -19  328  <...> SA7DXR JO76
163215 -19  329  C91RU SA7DXR R-14
163330  +1 2143  SA7DXR SP6AXW JO80 (x5)

UTC    dB Audio  Message
161800 -16 1283  SA7DXR S55A JN65 (x3)

UTC    dB Audio  Message
205000  +5  641  SA7DXR OJ0JR +00
205015 -11  327  OJ0JR SA7DXR R-01

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.