DL4KBK — 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: JO30

Receiver-side FT8 activity involving DL4KBK, decoded by SO8OO in southeastern Poland. 210 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 28 UTC dates in the available aggregate history. Observed between 2026-06-22 and 2026-10-16.

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 210 FT8 messages attributed to DL4KBK as the transmitting token by decoded message structure across 28 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (43%), followed by 80 m (32%) and 20 m (15%). Most decodes (86%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (70%); the estimated median was -4 dB.

Overview

210
Messages attributed
28
UTC dates decoded
54
Active 15-min windows
-4 dB
Estimated median S/N

Bands

80m · 67 40m · 90 20m · 32 10m · 21
First attributed message: 2026-06-22
Last attributed message: 2026-10-16 19:26 UTC

Observed FT8 message patterns

Attributed sample
210 messages
Active dates
28 UTC dates
Estimated median S/N
-4 dB
Estimated 10th-90th percentile
-16 to +4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 22, moderate (-15 to -9 dB) 42, strong (≥ -8 dB) 146.

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 DL4KBK 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 DL4KBK

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
JO30 · 96 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,053 km (approx.)
Last such locator decoded
2026-10-16 19:25 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 UTCBandDL4KBK S/NCounterpartCounterpart S/NMsgsCapture
10-16 19:25 40m -12 / - GI0VAB - / -14 3 ✓ Closing fragment
10-16 19:09 40m -4 / - G0XLX - / -9 2 ✓ Closing fragment
10-09 19:52 80m +6 / - DA6WA -21 / - 3 ✓ Closing observed
10-09 19:50 80m - / -11 US2YW +2 / - 2 Partial capture
10-09 19:49 80m - / -13 DA6OOM -17 / - 2 ✓ Closing fragment
10-09 19:29 40m +6 / - SV5BYP -9 / -4 4 ✓ Closing observed
10-09 19:27 40m +3 / - AN5CV - / - 2 Partial capture
10-09 19:26 40m -1 / - MW0USK - / - 2 ✓ Closing fragment
10-09 19:18 40m +12 / - GB50PUNK - / - 2 Partial capture
10-09 19:16 40m +8 / - 9A5CW - / - 2 Partial capture
10-04 18:31 80m -6 / -8 SP0YAGI -4 / -3 3 Partial capture
10-04 18:19 80m +2 / - HB3YPJ -19 / -7 5 ✓ Closing observed
09-28 19:23 40m -3 / - TA7MMI -19 / -3 4 ✓ Closing observed
09-28 19:21 40m +8 / -8 OV9R +2 / -16 6 ✓ Full exchange observed
09-27 16:38 40m -8 / - RL2F - / +3 3 ✓ Closing fragment
09-26 19:08 40m -6 / - RZ4FWA - / -19 3 Partial capture
09-26 19:05 40m -2 / -12 DK6MR -12 / -21 6 ✓ Full exchange observed
09-26 19:02 40m 0 / -7 HB9ELE +6 / - 4 ✓ Closing observed
09-26 18:59 40m - / - DK6MR -12 / - 5 Partial capture
09-26 18:59 40m -3 / - UA4FEN - / -11 2 ✓ Closing fragment
09-26 18:57 40m -4 / - DB0IPA - / -14 5 ✓ Closing fragment
09-26 18:54 40m - / -8 UA4FEN -12 / - 2 Partial capture
09-26 18:53 40m -10 / - LY4Q - / -14 2 ✓ Closing fragment
09-26 18:51 40m -6 / - HF100PKP - / -11 2 Partial capture
09-25 20:22 80m -2 / - TF1A - / -17 3 ✓ Closing fragment
09-25 20:10 80m +4 / - OL900LTV - / -5 2 Partial capture
09-25 19:55 80m -3 / - HB9FIL/P - / -7 2 ✓ Closing fragment
09-25 19:50 80m -4 / - SP7ROM -13 / -11 4 Partial capture
09-25 19:49 80m -8 / - RD9M/3 - / -15 2 Partial capture
09-24 17:56 80m -4 / -6 DM5ME -6 / - 4 ✓ Closing observed
09-24 17:54 80m -7 / -18 UA4FKT +4 / +2 6 ✓ Full exchange observed
09-24 17:53 80m -1 / - DB100FT -3 / -4 3 Partial capture
09-20 18:31 80m -8 / -13 DO9BAU +10 / +9 5 ✓ Full exchange observed
09-20 18:27 80m - / 0 DL0IPA +12 / - 2 ✓ Closing fragment
09-20 18:20 80m -7 / -12 IQ0AAI 0 / - 5 Partial capture
09-20 18:11 40m -1 / - R8OAE - / - 2 Partial capture
09-20 18:08 40m +4 / - EU4U +2 / +7 4 ✓ Closing observed
09-20 17:16 40m -4 / +2 LZ936BA +5 / +5 2 Partial capture
09-19 20:44 80m -6 / - HB3YIZ - / -16 3 Partial capture
09-19 20:43 80m -4 / +3 3Z100PKP +6 / +4 2 Partial capture
09-19 20:39 80m -8 / -11 9A60CBM +7 / -8 5 Partial capture
09-19 20:35 40m - / - DL7DL +2 / - 3 Partial capture
09-19 20:33 40m -4 / - 3Z100PKP - / - 3 Partial capture
09-18 20:24 40m +2 / -22 PD9HIX +12 / -12 11 Partial capture
09-18 20:21 40m -2 / - HZ1TT - / - 2 Partial capture
09-09 19:42 80m - / - EA3HMM -6 / - 2 Partial capture
09-09 19:42 80m +4 / - LB5WB -6 / 0 5 ✓ Full exchange observed
09-09 19:40 80m +4 / 0 OL900LTV -14 / -11 2 Partial capture
09-09 19:37 80m 0 / - UA4FKT +1 / -1 4 Partial capture
09-09 19:37 80m - / -14 UA3SCU -9 / - 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
192430  +4 1983  UN3P DL4KBK JO30
192600  -1 1214  MW0USK DL4KBK R+15 (x2)
192730  +2 2247  AN5CV DL4KBK JO30 (x2)
192900  +5 1181  SV5BYP DL4KBK R-04 (x2)
192945  -9 1309  DL4KBK SV5BYP RR73
193000  +5 1309  SV5BYP DL4KBK 73
190900  -5 1742  G0XLX DL4KBK R-09 (x2)
192530 -16 1882  GI0VAB DL4KBK JO30 (x3)
192815 -23 1530  DL4KBK IZ8PPI -24
80m 
UTC    dB Audio  Message
181930  +0 2004  HB3YPJ DL4KBK JO30 (x3)
182045 -19 2005  DL4KBK HB3YPJ 73
182215  -3 2162  DH0ZAL DL4KBK JO30
183145  -7 1027  SP0YAGI DL4KBK JO30
183200  -4 1026  DL4KBK SP0YAGI -08
183215  -6 1027  SP0YAGI DL4KBK R-03
194915 -12 2558  DL4KBK DA6OOM -13 (x2)
195045  +9 2558  DL4KBK US2YW KN28 (x2)
195230  +2 2634  DA6WA DL4KBK RR73
195245 -21 2634  DL4KBK DA6WA R+14
195300  +9 2634  DA6WA DL4KBK RR73
160m 
UTC    dB Audio  Message
194830  +0  934  DL4KBK DL100TV -17
204815 -13 1754  DL4KBK DB100FT -14
20m 
UTC    dB Audio  Message
140245 -14  833  RA9J DL4KBK JO30
161130  -6 2008  EN35UKR DL4KBK JO30 (x2)
183745  -6 2029  CQ DL4KBK JO30
183845 -19 1915  OE8RPK DL4KBK -07 (x2)
184430  +2 1413  YB0KEM DL4KBK JO30 (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.

CW

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

Explore CW reception at SO8OO

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