DL1SPI — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JN59

Receiver-side FT8 activity involving DL1SPI, decoded by SO8OO in southeastern Poland. 116 FT8 messages attributed to this token as transmitter, on 160m, 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-29 and 2026-09-05.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 116 FT8 messages attributed to DL1SPI as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (88%), followed by 160 m (12%). In this small sample, the estimated median decoder S/N was +7 dB; no usual signal pattern is inferred.

Overview

116
Messages attributed
2
UTC dates decoded
10
Active 15-min windows
+7 dB
Estimated median S/N

Bands

160m · 14 40m · 102
First attributed message: 2026-08-29
Last attributed message: 2026-09-05 22:46 UTC

Observed FT8 message patterns

Attributed sample
116 messages
Active dates
2 UTC dates
Estimated median S/N
+7 dB
Estimated 10th-90th percentile
-12 to +14 dB
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 12, strong (≥ -8 dB) 102.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with DL1SPI 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 DL1SPI

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
JN59 · 56 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
777 km (approx.)
Last such locator decoded
2026-09-05 22:46 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.

Time UTCBandDL1SPI S/NCounterpartCounterpart S/NMsgsCapture
09-05 22:41 40m +4 / - LU9GDN - / -16 10 Partial capture
09-05 22:38 40m +17 / - XV9B - / - 3 Partial capture
09-05 21:58 40m +12 / 0 4O7CC -7 / -3 5 ✓ Full exchange observed
09-05 21:49 40m +11 / - V51WH - / - 2 Partial capture
09-05 21:48 40m +10 / - R9LM - / -4 3 ✓ Closing fragment
09-05 21:06 40m +6 / - SV9QWC - / -6 6 ✓ Closing fragment
09-05 20:58 40m +6 / - LA4ROA - / - 10 Partial capture
09-05 20:57 40m - / - LY4Q -4 / - 3 Partial capture
09-05 20:53 40m - / - DL1UDO -1 / - 3 Partial capture
09-05 20:53 40m +8 / - 2I0WMN - / -12 9 ✓ Closing fragment
09-05 20:44 40m +9 / - UN7PPV - / -3 2 ✓ Closing fragment
09-05 20:42 40m +10 / - F4ACR - / -2 2 Partial capture
09-05 20:36 40m +6 / - TA7MMI - / - 4 Partial capture
09-05 20:23 40m +5 / - S51PV - / -14 5 Partial capture
09-05 20:19 40m +1 / - F6FHZ - / - 3 Partial capture
09-05 20:18 40m +4 / -13 F1PBZ +2 / +4 4 ✓ Full exchange observed
09-05 20:18 40m - / - S51PV -11 / - 6 Partial capture
09-05 20:15 40m +7 / +6 Z62NS -5 / +2 5 ✓ Full exchange observed
09-05 20:08 40m +12 / -6 IU2HUQ -6 / +1 11 Partial capture
09-05 19:57 40m +13 / - VJ6X - / -13 13 ✓ Closing fragment
09-05 19:52 40m +8 / - VK6BAD - / -24 5 Partial capture
08-29 23:06 160m -13 / -12 RD7O -8 / 0 9 ✓ Full exchange observed
08-29 23:04 160m -12 / +1 DL9KM -12 / +2 4 Partial capture
08-29 23:04 160m - / - R8LCA -10 / - 2 Partial capture
08-29 22:56 40m - / - R3BCK +2 / - 2 Partial capture
08-29 21:07 20m - / - KS4OT -12 / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

40m 
UTC    dB Audio  Message
223430 +14  479  XV9B DL1SPI JN59 (x4)
224100  +2 1595  LU9GDN DL1SPI JN59 (x10)
224630  +5 1744  KB1EFS DL1SPI JN59
160m 
UTC    dB Audio  Message
230415 -14 1593  DL9KM DL1SPI +02
230430 -10 1997  DL1SPI R8LCA MO27
230430 -13 1823  DL1SPI DL9KM R+01
230445 -11 1594  DL9KM DL1SPI RRR
230545 -14 1593  CQ DL1SPI JN59                        a1 (x2)
230630 -12 1593  DL1SPI RD7O KN98
230645 -12 1593  RD7O DL1SPI +00 (x5)
230930  -8 1593  DL1SPI RD7O R-12
230945 -13 1594  RD7O DL1SPI RRR
231000  -5 1593  DL1SPI RD7O 73
20m 
UTC    dB Audio  Message
210715 -14  570  DL1SPI KS4OT EM83 (x3)

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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee