DL4AMJ — reception at SO8OO

Observed FT8 message patterns

Attributed sample

1,137 messages

Active dates

53 UTC dates

Estimated median S/N

-7 dB

Estimated 10th-90th percentile

-17 to +1 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 145, moderate (-15 to -9 dB) 301, strong (≥ -8 dB) 691.

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 DL4AMJ 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 DL4AMJ

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 · 752 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

770 km (approx.)

Last such locator decoded

2026-10-01 18:29 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
173630  +4  737  DL4AMJ EH5FVP -18
173645 -12 1563  EH5FVP DL4AMJ R-12
173700  +3  737  DL4AMJ EH5FVP RR73
173715 -13 1563  EH5FVP DL4AMJ 73
173800 -13 1562  DL4AMJ DL1ASL JO50 (x3)
173915 -14 1563  RM8L DL4AMJ JO50
173930 -11 1973  DL4AMJ RM8L -04
173930 -14 1562  DL4AMJ DL1ASL JO50
173945 -10 1563  RM8L DL4AMJ R-06
174000 -11 1974  DL4AMJ RM8L RR73
174015 -11 1563  RM8L DL4AMJ 73
182845  -7 1563  CQ DL4AMJ JO50
182915  -7 1563  G8KHF DL4AMJ JO50

UTC    dB Audio  Message
175245 -22 1882  HA1BF DL4AMJ 73
180200  -5 1616  DL4AMJ <...> -05
182030  -6 1882  VE1VAS DL4AMJ JO50 (x8)
182645 -15 1882  TA7AO DL4AMJ JO50
182700  -6 1401  DL4AMJ TA7AO -16
182715 -16 1882  TA7AO DL4AMJ R-14
182730  -5 1400  DL4AMJ TA7AO RR73
182745 -18 1882  TA7AO DL4AMJ 73

UTC    dB Audio  Message
101815  -7 1143  CQ DL4AMJ JO50
101845 -11 1143  UR1CCT DL4AMJ +22
101900 -18  892  DL4AMJ UR1CCT R+07
101915 -12 1143  UR1CCT DL4AMJ RR73
102045 -17 1143  G0AZH DL4AMJ -15 (x4)
105500  -9 2401  Z61DX DL4AMJ JO50 (x2)
114815 -14  873  DL4AMJ 3A2MW RR73
141700 -23 1370  HB9FLH DL4AMJ R-20 (x2)
090100 -11 1691  DL4AMJ IK4TVP -08 (x2)

UTC    dB Audio  Message
190315  +6 2309  DL4AMJ ER3UA RR73
190330  -1 2050  ER3UA DL4AMJ R-14
190430  -7 2050  DO1DMR DL4AMJ JO50 (x3)
190730  +1 2050  LY8O DL4AMJ JO50 (x2)
190815  +2 1353  DL4AMJ LY8O -07
190830  -3 2050  LY8O DL4AMJ R-09
190845  +2 1353  DL4AMJ LY8O RR73
190900  -5 2050  LY8O DL4AMJ 73
191415  -6 2050  OK1LTV DL4AMJ JO50 (x4)

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.