DL5ARM — reception at SO8OO

Observed FT8 message patterns

Attributed sample

1,053 messages

Active dates

76 UTC dates

Estimated median S/N

-5 dB

Estimated 10th-90th percentile

-16 to +4 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 116, moderate (-15 to -9 dB) 246, 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 DL5ARM 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 DL5ARM

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 · 722 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

770 km (approx.)

Last such locator decoded

2026-11-04 23:19 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
170045 -13 2493  TC5ATA DL5ARM JO50 (x2)
174815 -14 2254  TC0TR DL5ARM JO50 (x4)
225415 -14 2254  DL5ARM TC0TR -13 (x2)
180000  -4 1948  TC0TR DL5ARM JO50 (x3)
231530  -3 2456  TC2TR DL5ARM JO50 (x2)
231800  +0 2739  TC0TR DL5ARM JO50 (x2)

UTC    dB Audio  Message
164145 -10 1340  IQ3TR DL5ARM R-10
164200  -9 1197  DL5ARM IQ3TR RR73
164215 -13 1340  IQ3TR DL5ARM 73
211100 -10 1294  TC6TR DL5ARM JO50 (x12)

UTC    dB Audio  Message
100900 -14  946  DL5ARM <...> -04
154130  -6  416  DL5ARM RR73; BD7IS <...> -04

UTC    dB Audio  Message
194330 -17 1791  DL5ARM RR73; SP1RKT <...> -08
224330  +1  877  TF1EM DL5ARM JO50 (x3)
224500  -1 2625  OH6FSO DL5ARM JO50 (x2)
224545 -11 2624  DL5ARM OH6FSO -10
224600  +4 2625  OH6FSO DL5ARM R-10 (x2)
224715  -6 1558  LA9JKA DL5ARM JO50
224730  +0 1558  DL5ARM LA9JKA -11
224745  -6 1558  LA9JKA DL5ARM R-03
224800  -4 1558  DL5ARM LA9JKA RR73
224815 -15 1558  LA9JKA DL5ARM 73
224715  +0  850  LZ2IP DL5ARM JO50

UTC    dB Audio  Message
083130  +9 2105  DL5ARM II7MGBT -08
084530 -15 2448  DL5ARM F5PBG IN78 (x3)
093345  -5 2121  DL5ARM IR7MGGC -01 (x2)
074245  +3 2651  DL5ARM YO4NT -06 (x2)
105330 -19 1433  <...> DL5ARM JO50
105345  -1 1046  DL5ARM II7MGLE -05
062645  -8 2104  DL5ARM II7MGBT -04
062845  -7 2103  DL5ARM RK4FF -11
130515 -14 1870  DL5ARM <...> -15 (x2)
115630  -4 1092  DL5ARM RR73; IU3VHR <...> -10

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.