DL7KB — 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: JO31

Receiver-side FT8 activity involving DL7KB, decoded by SO8OO in southeastern Poland. 197 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, across 4 UTC dates in the available aggregate history. Observed between 2026-09-27 and 2026-10-11.

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 197 FT8 messages attributed to DL7KB as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (60%), followed by 60 m (31%) and 40 m (9%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (89%); the estimated median was -3 dB.

Overview

197
Messages attributed
4
UTC dates decoded
17
Active 15-min windows
-3 dB
Estimated median S/N

Bands

First attributed message: 2026-09-27
Last attributed message: 2026-10-11 20:05 UTC

Observed FT8 message patterns

Attributed sample
197 messages
Active dates
4 UTC dates
Estimated median S/N
-3 dB
Estimated 10th-90th percentile
-9 to +2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 19, strong (≥ -8 dB) 175.

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.

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 DL7KB

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
JO31 · 117 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,054 km (approx.)
Last such locator decoded
2026-10-11 20:05 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 UTCBandDL7KB S/NCounterpartCounterpart S/NMsgsCapture
10-11 20:05 80m 0 / - SQ8AZT - / - 2 Partial capture
10-11 20:02 80m -9 / - DM8ITZ - / -8 4 ✓ Closing fragment
10-10 23:50 80m +3 / - S53K - / - 10 Partial capture
10-10 23:43 80m -2 / - DL2KMH - / +7 6 ✓ Closing fragment
10-10 23:40 80m -6 / - 9H6C - / -14 2 Partial capture
10-10 23:34 80m -5 / - M3VNI - / - 8 Partial capture
10-10 23:29 80m -3 / - VO1HH - / - 8 Partial capture
10-10 23:23 80m -6 / - GM6URC - / -3 5 ✓ Closing fragment
10-10 23:22 80m -4 / -7 OE1PHS -2 / -5 4 ✓ Full exchange observed
10-10 23:20 80m -7 / - F4GUC - / - 2 Partial capture
10-10 23:17 80m +5 / -19 F4FPR -5 / - 3 ✓ Closing observed
10-10 23:14 80m -3 / - DB5HA - / +7 4 Partial capture
10-10 22:05 80m -5 / - SP1MGM - / - 5 Partial capture
10-10 22:02 80m -4 / - Z31PM - / - 7 Partial capture
10-10 21:52 80m +1 / - F8ATS - / +7 5 ✓ Closing fragment
10-10 21:48 80m -4 / -12 SV5ADM -10 / -12 5 ✓ Full exchange observed
10-10 21:45 80m 0 / -10 EC5M -6 / -2 4 ✓ Full exchange observed
10-10 21:37 80m -6 / -8 DO5PY -2 / +1 5 ✓ Full exchange observed
10-10 21:34 80m -5 / +1 IZ3GNG +6 / +10 4 ✓ Full exchange observed
10-10 21:33 80m -2 / -12 F1PBZ -4 / +5 4 ✓ Full exchange observed
10-10 21:31 80m -4 / -11 UA3ROJ +2 / -5 3 ✓ Full exchange observed
10-10 21:29 80m -9 / -15 G8OO +6 / 0 5 ✓ Full exchange observed
10-10 21:28 80m -9 / -8 DH2LM -12 / -2 4 ✓ Full exchange observed
10-10 21:26 60m - / -2 EA4DUT -15 / - 5 Partial capture
10-10 20:14 40m - / -18 EC1DD -10 / - 2 Partial capture
10-10 20:00 40m - / -16 EA4HIA -12 / - 2 ✓ Closing fragment
10-09 22:51 40m - / -11 CT7AXN -21 / - 2 ✓ Closing fragment
10-07 23:07 80m -3 / - OK6RV - / - 5 ✓ Closing fragment
10-07 23:04 80m -7 / 0 DL7PIA 0 / +2 5 ✓ Full exchange observed
10-07 22:59 80m -1 / - HF50HSP -9 / -18 5 Partial capture
10-07 22:58 80m -7 / 0 HF1Z +7 / - 6 ✓ Full exchange observed
10-07 22:57 80m -2 / -1 F4EGM 0 / +4 5 ✓ Full exchange observed
10-07 22:57 80m -8 / - IU5HIU -12 / -10 4 ✓ Closing observed
10-07 22:56 80m -12 / - OH3CYT -2 / 0 4 ✓ Closing observed
10-07 22:53 80m -1 / - F6FHZ - / -21 3 ✓ Closing fragment
10-07 22:51 80m -2 / -5 SQ5ANT -2 / +5 5 ✓ Full exchange observed
10-07 22:49 80m 0 / - SQ2RAD - / +1 2 ✓ Closing fragment
10-07 22:05 40m - / -11 TA1CQ -9 / - 2 ✓ Closing fragment
10-07 21:41 60m 0 / - PA3GDL - / - 2 Partial capture
10-07 21:39 60m +2 / - G0AZH - / - 2 Partial capture
10-07 21:38 60m -2 / - EA7GNT - / -15 2 ✓ Closing fragment
10-07 21:36 60m -1 / - HG8LXL - / - 5 ✓ Closing fragment
10-07 21:34 60m +1 / - G0AZH - / - 3 Partial capture
10-07 21:33 60m -5 / - CT7BIZ - / - 3 Partial capture
10-07 21:30 60m -1 / - VO1NC - / - 6 Partial capture
10-07 21:28 60m 0 / -19 F5MXH -12 / -3 5 ✓ Full exchange observed
10-07 21:26 60m -2 / -15 S57BTI -10 / -10 7 ✓ Full exchange observed
10-07 21:24 60m -5 / - IU5KZF - / -3 3 ✓ Closing fragment
10-07 21:21 60m -7 / -8 OZ7CL -11 / -17 7 ✓ Full exchange observed
10-07 21:20 60m -6 / +8 SP4NDY +4 / - 5 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
235200  +4 1556  S53K DL7KB JO31 (x7)
200200  -6 1556  DM8ITZ DL7KB JO31 (x4)
200515  -3 1556  SQ8AZT DL7KB JO31 (x2)
200930  +1 1506  DL7KB SQ8AZT RR73
201200  -7  617  DL7KB ON7VZ 73
40m
UTC    dB Audio  Message
220500  -9  668  DL7KB TA1CQ -11 (x2)
222500 -18 1302  DL7KB EX7CQ -14 (x2)
224230 -23 2129  DL7KB VO1ANJ -17
224230 -17  898  DL7KB IQ0AAX -01
225130 -21 1541  DL7KB CT7AXN -11 (x2)
230000 -21 1574  DL7KB CT3MD -15
200015 -12 1362  DL7KB EA4HIA -16 (x2)
201400 -11 2379  DL7KB EC1DD -18 (x2)
195530 -18 1593  DM8ITZ DL7KB JO31
195630 -16 1593  YT1DDL DL7KB JO31
60m
UTC    dB Audio  Message
213645  -2 1587  HG8LXL DL7KB JO31 (x4)
213845  -3 1587  EA7GNT DL7KB -15 (x2)
213945  +0 1587  G0AZH DL7KB JO31 (x2)
214115  +1 1587  PA3GDL DL7KB JO31 (x2)
212600 -14 1189  DL7KB EA4DUT -02 (x5)

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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