DL4NDK — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

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

Receiver-side FT8 activity involving DL4NDK, decoded by SO8OO in southeastern Poland. 80 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 9 UTC dates in the available aggregate history. Observed between 2026-07-05 and 2026-09-29.

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 80 FT8 messages attributed to DL4NDK as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (43%), followed by 20 m (28%) and 40 m (19%). Most decodes (94%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (76%); the estimated median was -2 dB.

Overview

80
Messages attributed
9
UTC dates decoded
14
Active 15-min windows
-2 dB
Estimated median S/N

Bands

80m · 9 60m · 34 40m · 15 20m · 22
First attributed message: 2026-07-05
Last attributed message: 2026-09-29 21:30 UTC

Observed FT8 message patterns

Attributed sample
80 messages
Active dates
9 UTC dates
Estimated median S/N
-2 dB
Estimated 10th-90th percentile
-17 to +7 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 11, strong (≥ -8 dB) 61.

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 DL4NDK 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 DL4NDK

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 · 36 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
777 km (approx.)
Last such locator decoded
2026-09-29 21:26 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 UTCBandDL4NDK S/NCounterpartCounterpart S/NMsgsCapture
10-20 10:41 10m - / -1 UA9MA -10 / - 2 ✓ Closing fragment
10-18 21:18 40m - / -12 CT7AXN -12 / - 4 ✓ Closing fragment
10-18 21:18 40m - / -3 F5SJC -4 / - 4 ✓ Closing fragment
10-12 03:28 40m - / -4 SV5BYP -4 / - 3 ✓ Closing fragment
09-29 21:29 60m -5 / - G4DBW - / - 3 ✓ Closing fragment
09-29 21:27 80m -12 / -13 G4DBW 0 / -19 6 ✓ Full exchange observed
09-29 21:26 80m -10 / -22 IQ4JO +3 / -14 5 ✓ Full exchange observed
09-29 21:21 80m - / -14 YO4NF +6 / - 2 ✓ Closing fragment
09-29 21:20 80m -20 / - DM3ER - / -19 2 ✓ Closing fragment
09-21 16:34 40m +3 / - YB2TTM - / - 4 Partial capture
09-17 21:56 60m -6 / - SP4NDY - / +7 2 ✓ Closing fragment
09-17 21:54 60m -5 / - OM0CS - / +1 3 ✓ Closing fragment
09-03 19:06 60m - / +2 F5OZC -2 / - 3 Partial capture
08-20 20:58 40m -7 / - F8KIC/P - / -4 2 Partial capture
08-20 20:56 40m -2 / +3 DB3MAX +1 / -5 5 ✓ Full exchange observed
08-20 20:54 40m +5 / - <...> - / - 3 Partial capture
08-20 20:49 60m +4 / - M0UTD - / - 2 Partial capture
08-20 20:47 60m +2 / -1 G5DSG -8 / -9 5 ✓ Full exchange observed
08-20 20:45 60m +3 / -7 DK2YCT -6 / -4 5 ✓ Full exchange observed
08-20 20:42 60m -2 / +5 DH1VY -1 / +1 6 ✓ Full exchange observed
08-20 20:42 60m +3 / 0 DL9KM -16 / -12 6 ✓ Full exchange observed
08-20 20:41 60m -4 / -19 HA5LB -6 / -8 5 ✓ Full exchange observed
08-20 20:40 60m -3 / - DK7ZT - / -3 2 ✓ Closing fragment
08-20 20:39 60m +1 / - PA3CGJ - / -10 3 ✓ Closing fragment
08-20 20:27 60m +2 / -2 OJ0JR +8 / -8 3 Partial capture
08-20 20:21 20m +5 / - MM/F4MFS - / - 3 Partial capture
08-20 20:15 20m +7 / - BA3NZ - / -10 2 ✓ Closing fragment
08-20 20:11 20m +8 / - MI6YHI - / 0 4 ✓ Closing fragment
08-20 20:05 20m -7 / - MM/F4MFS - / - 3 Partial capture
08-20 20:02 20m +1 / - MI7JQH -16 / +5 2 Partial capture
08-20 20:00 20m - / - RC5F 0 / - 2 ✓ Closing fragment
08-03 02:50 40m - / -8 R6LE -6 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

10m 
UTC    dB Audio  Message
104100 -10  735  DL4NDK UA9MA -01 (x2)
40m 
UTC    dB Audio  Message
163415  -8 2588  YB2TTM DL4NDK JN59 (x4)
032815  +1  796  DL4NDK SV5BYP KM46 (x3)
211830  -7 2128  DL4NDK F5SJC JN05
211830 -15 1540  DL4NDK CT7AXN IM59
211900  -5 2128  DL4NDK F5SJC JN05
211900 -13 1540  DL4NDK CT7AXN IM59 (x3)
212100  +3  360  DL4NDK F5SJC R-03 (x2)
60m 
UTC    dB Audio  Message
190600  +0  888  DL4NDK F5OZC +02 (x3)
215430  -6 1162  OM0CS DL4NDK JN59 (x3)
215600  -3 1162  SP4NDY DL4NDK +07 (x2)
211615  +7 2510  CQ DL4NDK JN59 (x4)
212930  -1 1596  G4DBW DL4NDK RR73 (x3)
80m 
UTC    dB Audio  Message
212145  +4 1547  DL4NDK YO4NF RR73
212500 -21 1545  OE8DDX DL4NDK JN59
212530 -12 1545  CQ DL4NDK JN59 (x2)
212615  +1 1948  DL4NDK IQ4JO JN63
212630 -12 1545  IQ4JO DL4NDK -14
212645 +11 1948  DL4NDK IQ4JO R-22
212700  -9 1545  IQ4JO DL4NDK RR73
212715  -2 1949  DL4NDK IQ4JO 73
212715  -3 2234  DL4NDK G4DBW JO01
212730 -12 1545  G4DBW DL4NDK -19
212745  -2 2234  DL4NDK G4DBW R-13
212800 -13 1545  G4DBW DL4NDK RR73
212815  +4 2234  DL4NDK G4DBW R-13 (x2)
20m 
UTC    dB Audio  Message
200230 -16 2580  DL4NDK MI7JQH IO74
200245  +1 2580  MI7JQH DL4NDK +05
200530  -7 2580  MM/F4MFS DL4NDK JN59 (x3)
200830  +3 2580  EA5IHI DL4NDK 73
201115  +8 2580  MI6YHI DL4NDK JN59 (x4)
201515  +9 2580  BA3NZ DL4NDK R-10 (x2)
202130  +5 2580  MM/F4MFS DL4NDK JN59 (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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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