DL2RTJ — reception at SO8OO

Observed FT8 message patterns

Attributed sample

326 messages

Active dates

32 UTC dates

Estimated median S/N

+4.2 dB

Estimated 10th-90th percentile

-10 to +14 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 34, strong (≥ -8 dB) 285.

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 DL2RTJ 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 DL2RTJ

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

JO50 · 228 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

770 km (approx.)

Last such locator decoded

2026-10-22 06:41 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
164345  +2 1851  9M8HAZ DL2RTJ JO50 (x8)
063845  -2 1877  TO4A DL2RTJ JO50 (x2)

UTC    dB Audio  Message
032030 +14  651  9Y4D DL2RTJ JO50 (x2)
032115  -7 2223  DL2RTJ 9Y4D RR73
032130 +14  651  9Y4D DL2RTJ 73
032145  -9 3069  DL2RTJ OH6IH +00 (x2)
032230 +11  651  OH6IH DL2RTJ R-15
032245 -11 3069  DL2RTJ OH6IH RR73
032300  +8  651  OH6IH DL2RTJ 73
032415 +13  382  DL2RTJ DO1ID +14 (x6)

UTC    dB Audio  Message
213500  -5 2307  DL2RTJ HF5A 73
213515  -2 2202  RA0AF DL2RTJ JO50
213530 -10  991  DL2RTJ RA0AF -12
213545 -13 2202  RA0AF DL2RTJ R-08 (x2)
213645  -4 2202  RA9YTI DL2RTJ JO50 (x4)
213845  +7 2202  CQ DL2RTJ JO50
213900 -10 2839  DL2RTJ DG4MCB JN58
213915  +4 2202  DG4MCB DL2RTJ -04
213930  -5 2839  DL2RTJ DG4MCB R+05
213945  +2 2202  DG4MCB DL2RTJ RR73
221600  -3 1826  CU2AA DL2RTJ JO50

UTC    dB Audio  Message
182945 -17 1342  P29YY DL2RTJ JO50 (x4)

UTC    dB Audio  Message
132415 -20 2083  DL2RTJ GJ0KYZ +05 (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.