DL8ARJ — reception at SO8OO

Observed FT8 message patterns

Attributed sample

253 messages

Active dates

29 UTC dates

Estimated median S/N

-8 dB

Estimated 10th-90th percentile

-18 to -1 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 42, moderate (-15 to -9 dB) 80, strong (≥ -8 dB) 131.

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 DL8ARJ 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 DL8ARJ

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 · 153 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

770 km (approx.)

Last such locator decoded

2026-10-20 15:51 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
134715 -10 1802  OL900LTV DL8ARJ JO50 (x2)
134915 -11 1833  <3Z100PKP> DL8ARJ JO50 (x2)
135145 -10 1596  M0KCB/P DL8ARJ JO50
135315  -9 1596  <II4IANT> DL8ARJ JO50
135745  -5 1578  R3UCC/P DL8ARJ JO50
140545 -10 1628  II6IGTO DL8ARJ JO50 (x3)
140945 -13 1812  <3Z100PKP> DL8ARJ JO50
155100 -16 1817  R9LY/P DL8ARJ JO50
155115 +19 2956  DL8ARJ DA125RH +08
155130  -8 1817  R9LY/P DL8ARJ R-12
155300  -1 1817  SN0EG DL8ARJ RR73

UTC    dB Audio  Message
204815  -9 1854  UB3ADO/P DL8ARJ JO50
204830 +15 2825  DL8ARJ SP100PKP -09 (x2)
204930  +7 2825  DL8ARJ RR73; SP9TBT <...> +12
205330  -5 1854  E75C DL8ARJ JO50 (x3)
180330 -13 1633  DL8ARJ OL900LTV +14
180400  -2  355  DL8ARJ SM7WVZ JO65 (x4)
175415  -3 2125  DU7/NW5H DL8ARJ JO50
175430  -9 1272  DL8ARJ OL900LTV +20
175445  -3 2125  DU7/NW5H DL8ARJ R-09

UTC    dB Audio  Message
131415  -4 2334  TF4M DL8ARJ JO50 (x4)
131745 -13 1666  F5PZQ DL8ARJ RR73
131745 -13 1056  8C81KS <DL8ARJ> 73
132115 -15 1865  PA2DT DL8ARJ JO50
132815 -24 1790  DL8ARJ PD2NBE -13 (x2)
132900 -20 1625  PD2NBE DL8ARJ R-19
132915 -24 1790  DL8ARJ PD2NBE RR73
132930 -14 1624  PD2NBE DL8ARJ 73
125630  -2 1304  DL8ARJ EN35UKR -17
130845  +6 2077  DL8ARJ GJ0KYZ +00 (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.