DL1ZU — 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: JO40

Receiver-side FT8 activity involving DL1ZU, decoded by SO8OO in southeastern Poland. 708 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 54 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-11-05.

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 708 FT8 messages attributed to DL1ZU as the transmitting token by decoded message structure across 54 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (45%), followed by 20 m (21%) and 80 m (15%). Most decodes (51%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

708
Messages attributed
54
UTC dates decoded
140
Active 15-min windows
-8 dB
Estimated median S/N

Bands

First attributed message: 2026-06-12
Last attributed message: 2026-11-05 05:54 UTC

Observed FT8 message patterns

Attributed sample
708 messages
Active dates
54 UTC dates
Estimated median S/N
-8 dB
Estimated 10th-90th percentile
-17 to +3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 90, moderate (-15 to -9 dB) 238, strong (≥ -8 dB) 380.

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 DL1ZU

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
JO40 · 501 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
911 km (approx.)
Last such locator decoded
2026-11-05 05:53 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 UTCBandDL1ZU S/NCounterpartCounterpart S/NMsgsCapture
11-05 05:53 80m +4 / +6 GU4WRP -12 / -4 4 ✓ Full exchange observed
11-05 05:42 80m +8 / - W0RLD - / -25 3 ✓ Closing fragment
11-05 05:37 80m +11 / 0 F4IIX 0 / - 6 ✓ Full exchange observed
11-05 05:36 80m +10 / - OH3DJP - / -9 3 ✓ Closing fragment
11-04 21:16 80m - / -13 LB8MG 0 / - 5 Partial capture
11-04 20:41 80m -1 / - SV1DKR -17 / -6 4 ✓ Closing observed
11-04 20:04 80m 0 / - UB5O/M - / - 2 Partial capture
11-03 07:12 60m -6 / +8 F5LMJ -12 / -1 3 ✓ Full exchange observed
11-03 07:11 60m -5 / - SQ2EAR -12 / -9 5 ✓ Closing observed
11-03 07:08 60m -14 / - F4MJX - / -9 3 ✓ Closing fragment
11-03 07:06 60m -8 / - CT2FFC - / -15 2 ✓ Closing fragment
11-03 07:04 60m -12 / +4 DF6DBF -9 / - 6 ✓ Full exchange observed
11-03 07:04 60m -10 / +3 OE8PIT +4 / - 5 ✓ Full exchange observed
11-02 22:44 60m +5 / -6 PI40EUDXF +8 / -9 2 Partial capture
11-02 07:37 60m +2 / -20 HF40BLP +7 / +3 3 Partial capture
11-02 07:35 60m -6 / - DK3XX -14 / - 3 ✓ Full exchange observed
11-02 07:28 60m -7 / - EA1SAL - / -4 2 ✓ Closing fragment
10-31 23:43 60m +2 / - TN8GD - / -16 3 ✓ Closing fragment
10-31 06:32 60m -4 / - ZL3GAV - / -24 5 ✓ Closing fragment
10-30 22:08 60m -16 / - VR2ZXP - / -20 3 Partial capture
10-30 21:37 60m -21 / - S9R - / -10 2 Partial capture
10-30 03:36 60m +9 / -5 SV2KD +4 / +10 5 ✓ Full exchange observed
10-29 23:05 60m -1 / - 7Z1BQ - / - 8 Partial capture
10-29 23:05 60m - / - DH4PAP -1 / - 6 Partial capture
10-29 22:55 60m -2 / - 6W/IK2HKT - / -10 3 Partial capture
10-29 22:49 60m -5 / - 6W/IK2HKT - / - 2 Partial capture
10-29 22:33 60m -8 / - 6W/IK2HKT - / -13 13 Partial capture
10-29 22:01 60m -9 / - 6W/IK2HKT - / - 55 Partial capture
10-29 16:16 60m -6 / - DM3RCK -13 / +8 4 Partial capture
10-29 16:15 60m -3 / -6 DL0NS -9 / -8 4 ✓ Full exchange observed
10-29 15:49 60m - / +10 OM2CW +11 / - 2 ✓ Closing fragment
10-29 15:39 60m -9 / - SP2EWQ -6 / - 4 ✓ Closing observed
10-29 15:37 60m -8 / -2 DM3XD -13 / +2 4 Partial capture
10-29 05:28 60m -4 / - TI4LAS - / -22 2 ✓ Closing fragment
10-28 22:01 60m -2 / -7 F1LZV -14 / -6 5 ✓ Full exchange observed
10-28 22:00 60m -3 / -12 LZ1ZF -10 / -9 5 ✓ Full exchange observed
10-28 07:50 60m -13 / - DK2YCT -16 / -2 5 ✓ Full exchange observed
10-28 07:46 60m -16 / - DL3BH -22 / - 2 ✓ Closing observed
10-28 07:44 60m -14 / - DK8EW -11 / - 4 ✓ Closing observed
10-28 07:42 60m -15 / -3 DL3FBI -17 / -12 3 ✓ Full exchange observed
10-28 07:38 60m -9 / - DL8DCM - / - 3 Partial capture
10-28 07:34 60m -14 / +3 DM2AUO -9 / +5 4 ✓ Full exchange observed
10-27 22:11 60m +4 / +4 EA7L -14 / -2 6 ✓ Full exchange observed
10-27 22:10 60m - / - DD3KF -1 / - 5 Partial capture
10-27 22:09 60m +2 / - EA4DM - / -3 2 ✓ Closing fragment
10-27 22:07 60m -3 / - EA3FIR - / -13 3 ✓ Closing fragment
10-27 22:04 60m -7 / - ER1CW - / - 2 ✓ Closing fragment
10-27 21:24 60m -2 / - 8S2C - / - 9 Partial capture
10-27 07:39 60m -13 / - OH0KCE - / -15 9 ✓ Closing fragment
10-27 06:58 60m 0 / +1 G3SHK -7 / - 4 ✓ 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
053700  +9  479  OH3DJP DL1ZU 73
053715  +3  304  DL1ZU F4IIX IN95 (x2)
053800  +8  304  F4IIX DL1ZU +18
053815  -3  304  DL1ZU F4IIX R+00
053830 +14  304  F4IIX DL1ZU RR73
053845  +1  303  DL1ZU F4IIX 73
054000  +6 1702  GB1RBL DL1ZU 73
054200  +7 1104  W0RLD DL1ZU JO40 (x3)
055345  -1 1216  GU4WRP DL1ZU JO40
055400 -12 1216  DL1ZU GU4WRP +06
055415  +7 1215  GU4WRP DL1ZU R-04 (x2)
60m
UTC    dB Audio  Message
070600 -13 1658  DF6DBF DL1ZU RR73
070615  -9 1858  DL1ZU DF6DBF 73
070630 -10 1658  CT2FFC DL1ZU -15 (x2)
070830 -12 1858  F4MJX DL1ZU JO40 (x3)
071115  -6 2505  SQ2EAR DL1ZU JO40 (x2)
071215  -6 2505  F5LMJ DL1ZU -01
071230 -12 2505  DL1ZU F5LMJ R+08
071245  -7 2505  F5LMJ DL1ZU RR73
071315  -3 2505  SQ2EAR DL1ZU R-09
071330 -12 2505  DL1ZU SQ2EAR RR73
071345  -6 2506  SQ2EAR DL1ZU 73
40m
UTC    dB Audio  Message
003715 -18 2453  VP2MAW DL1ZU JO40
160m
UTC    dB Audio  Message
030830  -6 1853  VE9RCI DL1ZU JO40 (x3)
031145  +2 2449  OH5VT DL1ZU JO40 (x2)
031230  +8 2449  DL1ZU OH5VT RR73
031245  +8 2449  OH5VT DL1ZU 73
031300  -2 1141  DL1ZU DK7ZT -21 (x5)
032615  +1 1653  LA9JKA DL1ZU JO40 (x3)
20m
UTC    dB Audio  Message
085645  -6 1556  YV5JLO DL1ZU JO40
060745 +12  994  XQ1KK DL1ZU JO40
061000  +7  784  3V8HP DL1ZU JO40 (x4)
093530  +1 2328  OZ9FF DL1ZU JO40
093545  -7 2328  DL1ZU OZ9FF -06

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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