DK100LH — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany

Receiver-side FT8 activity involving DK100LH, decoded by SO8OO in southeastern Poland. 406 FT8 messages attributed to this token as transmitter, on 160m, 40m, across 9 UTC dates in the available aggregate history. Observed between 2026-08-03 and 2026-09-21.

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 406 FT8 messages attributed to DK100LH as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (87%), followed by 160 m (13%). The busiest six-hour window was 13:00-19:00 UTC, containing 46% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (69%); the estimated median was -6 dB.

Overview

406
Messages attributed
9
UTC dates decoded
24
Active 15-min windows
-6 dB
Estimated median S/N

Bands

160m · 52 40m · 354
First attributed message: 2026-08-03
Last attributed message: 2026-09-21 14:23 UTC

Observed FT8 message patterns

Attributed sample
406 messages
Active dates
9 UTC dates
Estimated median S/N
-6 dB
Estimated 10th-90th percentile
-16 to +2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 43, moderate (-15 to -9 dB) 81, strong (≥ -8 dB) 282.

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 DK100LH 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.

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 UTCBandDK100LH S/NCounterpartCounterpart S/NMsgsCapture
09-21 14:22 40m -2 / +3 F3CJ -24 / 0 2 Partial capture
09-21 14:20 40m -6 / - RA4NCC - / -11 2 Partial capture
09-21 14:14 40m -8 / - <...> - / - 3 ✓ Closing fragment
09-21 14:13 40m -7 / - DL4LUS - / -20 2 Partial capture
09-21 14:07 40m -5 / - <...> -10 / - 3 ✓ Closing fragment
09-21 14:06 40m - / -3 DL2HUC -5 / - 2 Partial capture
09-21 14:01 40m -3 / - DG4BBK - / -19 2 Partial capture
09-21 14:00 40m -3 / - SQ8JLF - / -13 2 Partial capture
09-21 13:58 40m -3 / - <...> 0 / - 7 ✓ Closing fragment
09-21 13:55 40m -4 / +6 DL3BUA -2 / -4 5 Partial capture
09-21 13:51 40m -3 / +3 OE7GJ -4 / +1 3 Partial capture
09-21 13:44 40m -1 / +2 DK1XAM -9 / -2 2 Partial capture
09-21 13:42 40m -5 / +1 HA7TM +8 / +2 3 Partial capture
09-21 13:40 40m -7 / - <...> -4 / - 22 ✓ Closing fragment
09-21 13:39 40m -12 / +3 DK3ME -9 / 0 4 Partial capture
09-17 17:51 40m - / - DG1ASE -7 / - 3 Partial capture
09-17 17:47 40m - / -7 R3LDK -2 / - 3 Partial capture
09-17 17:43 40m +5 / -6 F4IIX -10 / -7 3 Partial capture
09-17 17:40 40m - / - DL8YBL -9 / - 4 Partial capture
09-17 17:38 40m +7 / 0 RC5F -9 / -10 4 Partial capture
09-17 17:37 40m +6 / - <...> -10 / - 13 ✓ Closing fragment
09-17 17:37 40m -3 / - R3UDU -16 / -4 4 Partial capture
09-17 17:31 40m 0 / - UN7PPV - / -12 2 Partial capture
09-17 17:29 40m +4 / - <...> +6 / - 7 ✓ Closing fragment
09-15 05:27 40m - / +8 LY2MM -1 / - 11 Partial capture
09-14 06:04 40m - / - DF2KK -10 / - 8 Partial capture
09-14 05:49 40m - / - DF7EE -12 / - 5 Partial capture
09-14 05:46 40m +1 / - <...> - / - 4 ✓ Closing fragment
09-14 05:45 40m +5 / - W1ATV - / -16 2 Partial capture
09-14 05:44 40m +2 / - <...> 0 / - 2 ✓ Closing fragment
09-14 05:42 40m +4 / - IU3VGK - / -15 2 Partial capture
09-14 05:41 40m 0 / - F5ILV - / -5 2 Partial capture
09-14 05:37 40m -1 / - R4FFQ -19 / -10 2 Partial capture
09-14 05:35 40m +1 / -14 PC2J -14 / -17 2 Partial capture
09-14 05:33 40m -1 / -14 GJ0KYZ -16 / -18 2 Partial capture
09-14 05:27 40m +1 / - <...> -10 / - 14 ✓ Closing fragment
09-14 05:26 40m +2 / -1 IT9CBE -22 / -7 3 Partial capture
09-14 05:23 40m +1 / -19 EW2GI -3 / -18 3 Partial capture
09-14 05:22 40m - / - PC2J -14 / - 2 Partial capture
09-14 05:20 40m -5 / -3 LZ2VQ -11 / -6 2 Partial capture
09-14 05:19 40m -5 / - <...> -9 / - 9 ✓ Closing fragment
09-14 05:17 40m -6 / - EA5D - / -15 2 Partial capture
09-14 05:16 40m -7 / - RZ3DZ - / -17 2 Partial capture
09-14 05:13 40m -1 / +10 YL3GAO -12 / -6 3 Partial capture
09-14 05:12 40m -4 / - R5AV - / -9 2 Partial capture
09-14 05:07 40m +2 / - RA6OY - / -4 2 Partial capture
09-09 20:02 160m - / - 9A4ZM -2 / - 2 Partial capture
09-09 19:55 160m - / - SP9AU -7 / - 4 Partial capture
09-09 19:34 160m - / 0 SP9OJ -10 / - 2 Partial capture
09-09 19:30 160m - / -7 IZ2DVI -6 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
141730  -9 1806  CQ DK100LH (x3)
141900  -2 1806  M6INJ DK100LH -03
141930  -4 1806  <...> DK100LH RR73
142000  -8 1806  RA4NCC DK100LH -11
142030  -5 1806  CQ DK100LH (x2)
142130  -4 1806  RA4NCC DK100LH -13
142200  -1 1806  CQ DK100LH
142230  -2 1806  F3CJ DK100LH +00
142245 -24 1807  DK100LH F3CJ R+03
142300  -6 1806  <...> DK100LH RR73
160145  -9 1873  DK100LH DL6ZOG JO52
160645  +8 2255  DK100LH DJ2AX JO50
160m 
UTC    dB Audio  Message
175015 -13 1257  DK100LH RA4ACX LN28
184630 -24 1007  DK4SDR DK100LH -18 (x2)
184715 -10 1450  DK100LH UA6NT LN06
193015  -5 2310  DK100LH IZ2DVI JN45 (x2)
193415  -8 1435  DK100LH SP9OJ JN99 (x2)
195500  +4 1137  PA3FR DK100LH +00
195515  -8 1896  DK100LH SP9AU JO90 (x4)
200245  -2 1959  DK100LH 9A4ZM JN86 (x2)
20m 
UTC    dB Audio  Message
090545  -2 1423  DK100LH <...> RR73
090615  +3 1423  DK100LH IU8JLX -19 (x2)
090645 -16 2153  DK100LH <...> RR73
090715  -1 1423  DK100LH IU8JLX -19

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.

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