DB0CUI — 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: JN58

Receiver-side FT8 activity involving DB0CUI, decoded by SO8OO in southeastern Poland. 1,505 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 38 UTC dates in the available aggregate history. Observed between 2026-06-07 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 1,505 FT8 messages attributed to DB0CUI as the transmitting token by decoded message structure across 38 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (51%), followed by 40 m (44%) and 20 m (5%). The busiest six-hour window was 18:00-00:00 UTC, containing 43% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8.6 dB.

Overview

1,505
Messages attributed
38
UTC dates decoded
192
Active 15-min windows
-8.6 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-10-11 14:13 UTC

Observed FT8 message patterns

Attributed sample
1,505 messages
Active dates
38 UTC dates
Estimated median S/N
-8.6 dB
Estimated 10th-90th percentile
-20 to +3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 382, moderate (-15 to -9 dB) 373, strong (≥ -8 dB) 750.

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 DB0CUI

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
JN58 · 609 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
799 km (approx.)
Last such locator decoded
2026-10-11 13:59 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 UTCBandDB0CUI S/NCounterpartCounterpart S/NMsgsCapture
10-11 14:12 40m -17 / +4 DD3ZZ -15 / - 4 ✓ Closing observed
10-11 14:03 40m -7 / - DL9PN -10 / -11 6 Partial capture
10-11 14:02 40m -16 / -1 DJ1TU -7 / -14 5 ✓ Full exchange observed
10-11 13:59 40m -14 / - IV3NDR -10 / -10 5 ✓ Full exchange observed
10-10 14:08 40m -16 / -17 R2AL -4 / -10 5 ✓ Full exchange observed
10-10 14:05 40m -14 / - SM0EJR -10 / -9 4 ✓ Closing observed
10-10 14:03 40m -9 / +5 DK7XD -18 / -4 4 ✓ Full exchange observed
10-10 13:54 40m - / - R2AL -4 / - 4 Partial capture
10-10 13:53 40m -15 / +3 S52D +3 / +2 5 ✓ Full exchange observed
10-10 13:49 40m -10 / - HA1DCQ - / -2 2 ✓ Closing fragment
10-10 13:48 40m -18 / - HB9AKP - / -3 2 ✓ Closing fragment
10-10 13:42 40m -12 / - OE9GWV -10 / - 3 ✓ Closing observed
10-10 13:40 40m -18 / - OS8E - / -10 2 ✓ Closing fragment
10-10 13:38 40m -18 / - DL2FBG -24 / -1 4 ✓ Closing observed
10-10 02:01 80m 0 / - EA5HM - / - 4 Partial capture
10-10 01:59 80m +5 / -2 EC5M -2 / -5 5 ✓ Full exchange observed
10-10 01:58 80m +10 / +2 M9DNC -9 / -6 5 ✓ Full exchange observed
10-10 01:54 80m +8 / -2 9A4AA +5 / -3 4 ✓ Full exchange observed
10-10 01:53 80m +3 / - IQ9SZ/7 - / -6 2 Partial capture
10-10 01:48 80m -22 / - HG8LXL -10 / -5 5 Partial capture
10-10 01:48 80m -5 / -2 OK1HEH +6 / -7 6 ✓ Full exchange observed
10-10 01:47 80m +3 / - TA4SSK - / -12 2 ✓ Closing fragment
10-10 01:34 80m +8 / -14 DO1ANB -18 / -12 3 Partial capture
10-10 01:32 80m -1 / -11 SM6ONT -15 / - 4 ✓ Closing observed
10-10 01:30 80m +6 / -5 HA8LD -10 / -6 5 ✓ Full exchange observed
10-10 01:26 80m +7 / +4 F5OYA/P -14 / -12 4 ✓ Full exchange observed
10-10 01:23 80m +5 / +7 DO5PY -1 / -6 5 ✓ Full exchange observed
10-10 01:20 80m -5 / -12 UX7QV -2 / -12 5 ✓ Full exchange observed
10-10 01:16 80m +5 / -18 R5DT +5 / -13 5 ✓ Full exchange observed
10-10 01:13 80m +10 / +5 9A2TN +4 / -9 5 ✓ Full exchange observed
10-10 01:13 80m +2 / 0 EI4JFB -12 / -6 7 ✓ Full exchange observed
10-10 01:11 80m +10 / +2 ON4MAP -16 / - 3 ✓ Closing observed
10-10 01:10 80m +12 / -5 SP7OK +6 / +6 4 ✓ Full exchange observed
10-10 01:08 80m +4 / -9 CU6AB -12 / -12 4 ✓ Full exchange observed
10-10 01:05 80m +5 / - ON8FAB - / -11 2 ✓ Closing fragment
10-10 01:04 80m 0 / +10 HB9EOT/P -9 / -4 4 ✓ Full exchange observed
10-10 01:02 80m +4 / +9 OR5T +2 / 0 5 ✓ Full exchange observed
10-10 01:00 80m - / - DJ3ZF +2 / - 4 ✓ Closing fragment
10-10 01:00 80m +12 / - TA4SSK - / - 2 Partial capture
10-10 00:58 80m +13 / - G8KHF -14 / -9 4 ✓ Closing observed
10-09 23:43 80m -5 / - EB3JT - / -16 2 ✓ Closing fragment
10-09 23:42 80m 0 / - SQ8AZT -4 / -15 3 ✓ Closing observed
10-09 23:41 80m -2 / +3 DL7PIA -1 / 0 4 ✓ Full exchange observed
10-09 23:39 80m 0 / -2 SQ2RAD +4 / -20 3 Partial capture
10-04 17:25 40m -7 / - M7YNE - / -7 3 Partial capture
10-04 17:21 40m -10 / -11 DL1AG -14 / -7 5 ✓ Full exchange observed
10-04 17:19 40m -8 / -4 LZ2VQ -14 / -5 4 ✓ Full exchange observed
10-04 17:17 40m -12 / -1 PA3BRB -7 / +6 5 ✓ Full exchange observed
10-04 17:14 40m -3 / -13 HA7TM +8 / +1 5 ✓ Full exchange observed
10-04 17:12 40m -13 / +10 DL1NEO +5 / - 4 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
140200  -6 2388  DB0CUI DJ1TU JN48
140215 -19 2109  DJ1TU DB0CUI -14
140230  -6 2388  DB0CUI DJ1TU R-01
140245 -12 2109  DJ1TU DB0CUI RR73
140300 -10 2834  DB0CUI DL9PN JN39
140300 -10 2388  DB0CUI DJ1TU 73
140415 -13 2109  DL9PN DB0CUI -11 (x5)
141215 -12 1915  DB0CUI DD3ZZ +04 (x3)
141330 -17 1917  DD3ZZ DB0CUI 73
80m
UTC    dB Audio  Message
015545 +10  666  9A4AA DB0CUI 73
015800  +9 2670  M9DNC DB0CUI JN58
015815  -8 2669  DB0CUI M9DNC +02
015830 +13 2670  M9DNC DB0CUI R-06
015845 -10 2669  DB0CUI M9DNC RR73
015900  +7 2670  M9DNC DB0CUI 73
015930  +3 1197  EC5M DB0CUI JN58
015945  -3 1196  DB0CUI EC5M -02
020000  +7 1197  EC5M DB0CUI R-05
020015  +0 1196  DB0CUI EC5M RR73
020030  +5 1197  EC5M DB0CUI 73
020130  -2 1532  EA5HM DB0CUI JN58 (x4)
20m
UTC    dB Audio  Message
153645  -8 1983  DB0CUI IK4RVY RR73
182500 -13 1229  SV3AUW DB0CUI 73
185130 -17 2084  ER3CT DB0CUI JN58 (x5)
190645 -20 1868  M0CKX DB0CUI R-08 (x2)
191900 -18 1663  RN2FQ DB0CUI JN58 (x4)
182545 -18  993  DB0CUI A41ZZ -09
235645 -23 2144  DB0CUI VE3ARF -10

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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