DL4RBR — 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 DL4RBR, decoded by SO8OO in southeastern Poland. 628 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 62 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-11-06.

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 628 FT8 messages attributed to DL4RBR as the transmitting token by decoded message structure across 62 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (52%), followed by 40 m (28%) and 20 m (16%). The busiest six-hour window was 22:00-04:00 UTC, containing 49% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (66%); the estimated median was -5 dB.

Overview

628
Messages attributed
62
UTC dates decoded
124
Active 15-min windows
-5 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-11-06 02:57 UTC

Observed FT8 message patterns

Attributed sample
628 messages
Active dates
62 UTC dates
Estimated median S/N
-5 dB
Estimated 10th-90th percentile
-16.6 to +5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 75, moderate (-15 to -9 dB) 137, strong (≥ -8 dB) 416.

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 DL4RBR

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 · 436 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
777 km (approx.)
Last such locator decoded
2026-11-06 02:57 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 UTCBandDL4RBR S/NCounterpartCounterpart S/NMsgsCapture
11-06 02:56 80m 0 / - SP8HDC - / -4 2 Partial capture
11-06 02:52 80m -5 / - SP1EG +12 / - 4 ✓ Closing observed
11-06 02:52 80m -2 / +1 TA1MB -14 / -4 6 ✓ Full exchange observed
11-06 02:50 80m +1 / - DO2MOG -8 / +2 7 ✓ Full exchange observed
11-05 05:16 40m - / -20 TC2TR -16 / - 5 ✓ Closing fragment
11-05 05:04 80m -4 / -3 OH6FSG -3 / -2 5 ✓ Full exchange observed
11-04 08:02 40m -6 / - TK8RI - / -14 3 Partial capture
11-04 07:59 40m -6 / +1 DL7ACA -2 / - 6 ✓ Full exchange observed
11-04 07:57 40m -12 / - PA0MUS - / -5 3 ✓ Closing fragment
11-04 07:55 40m -6 / - GU4YBW - / -15 3 ✓ Closing fragment
11-03 11:38 40m - / - PA2RO -6 / - 3 Partial capture
11-03 11:37 40m -11 / -16 DM5ME -18 / - 2 ✓ Closing observed
11-03 11:34 40m -11 / - HJ0JAP/2 - / +5 4 Partial capture
11-03 11:31 40m -9 / +8 DL6NA -24 / +3 6 ✓ Full exchange observed
11-02 21:23 80m 0 / - DK0PRL - / - 2 ✓ Closing fragment
11-02 21:17 80m - / +4 LZ911TD -4 / - 2 Partial capture
11-02 21:15 80m -6 / - TK/DH7SB - / - 2 Partial capture
11-02 21:09 80m -7 / -14 HB3YPJ -15 / -4 3 Partial capture
11-02 21:08 80m -4 / - TK/DH7SB - / - 2 Partial capture
11-02 21:07 80m - / - DC7MA +2 / - 2 Partial capture
11-02 21:06 80m -3 / +6 DL0NW -4 / -12 5 ✓ Full exchange observed
11-02 21:02 80m -4 / +8 DK80NDS +11 / - 5 Partial capture
11-01 14:02 40m -13 / - OR1A - / -7 3 ✓ Closing fragment
10-27 23:29 80m +6 / 0 SM2OTU -11 / -15 4 ✓ Full exchange observed
10-26 06:03 40m 0 / - F4MOJ/P - / - 2 Partial capture
10-26 05:59 40m -4 / - W1AW/KL7 - / -13 10 Partial capture
10-26 05:53 40m -6 / - W1AW/KL7 - / -13 8 Partial capture
10-26 05:51 40m -4 / - SP5LUNA - / - 2 Partial capture
10-26 05:47 40m -6 / - UA9OGC/P - / - 4 Partial capture
10-26 05:45 40m -5 / - W1AW/KL7 - / - 3 Partial capture
10-24 02:41 80m +3 / - DL4DP - / -14 2 ✓ Closing fragment
10-24 02:38 80m +1 / +3 DG9RAB -24 / -20 8 ✓ Full exchange observed
10-22 01:13 80m +18 / - R1QF/P - / - 2 Partial capture
10-22 01:09 80m +14 / - AP2HA - / - 7 Partial capture
10-17 23:17 80m +7 / -3 IU8GUK +2 / -6 5 ✓ Full exchange observed
10-17 23:14 80m +3 / -1 E75C -5 / -2 5 ✓ Full exchange observed
10-17 23:11 80m +9 / - RD9M/3 - / -13 2 Partial capture
10-17 23:07 80m -4 / -18 GW4HZA -6 / -14 6 ✓ Full exchange observed
10-17 23:04 80m -6 / -15 UN0GY -5 / -10 5 ✓ Full exchange observed
10-14 05:32 40m -8 / - OK1WCF - / -12 5 ✓ Closing fragment
10-14 05:30 40m -7 / 0 E75FM -12 / +2 5 ✓ Full exchange observed
10-13 22:52 80m +8 / - ON6PL +8 / +10 5 ✓ Closing observed
10-13 22:50 80m +8 / -11 DA6DNA -1 / +9 5 ✓ Full exchange observed
10-13 22:48 80m +14 / - DO1LKG - / -3 2 ✓ Closing fragment
10-13 22:46 80m +6 / -1 DL/AD2LX +4 / +7 3 Partial capture
10-13 22:44 80m 0 / - R8CEG - / - 2 Partial capture
10-13 22:38 80m +7 / -12 5B4AMX -10 / -13 7 ✓ Full exchange observed
10-13 22:36 80m +4 / +2 DA6OOM -3 / -6 6 ✓ Full exchange observed
10-11 16:51 40m +4 / - R80SAA - / - 4 Partial capture
10-11 16:47 40m -9 / - R80SAA - / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
025230  -2 2007  DO2MOG DL4RBR 73
025245  -5 1503  DL4RBR TA1MB KN41
025245 +12 2007  DL4RBR SP1EG JO73
025315  -1 2008  DL4RBR SP8HDC KO00
025330  -6 2007  SP1EG DL4RBR +14 (x3)
025445 -18 1503  DL4RBR TA1MB KN41
025500  -3 2007  TA1MB DL4RBR -04
025515 -16 1503  DL4RBR TA1MB R+01
025530  -1 2007  TA1MB DL4RBR RR73
025545 -19 1503  DL4RBR TA1MB 73
025600  +5 2007  SP8HDC DL4RBR -04 (x2)
025745  -2 2007  OK1ACE DL4RBR JN59
40m
UTC    dB Audio  Message
080000  -2 2035  DL4RBR DL7ACA R+01
080015  -5 2035  DL7ACA DL4RBR RR73
080030  -2 2035  DL4RBR DL7ACA 73
080045  -7 2035  DA0M DL4RBR -19
080245  -3 2035  TK8RI DL4RBR JN59 (x3)
080615  -7 2034  ON5ACO DL4RBR 73
080700  +6  796  DL4RBR YO1BRANCUSI -12
093945 -15 2036  DL0FTP DL4RBR 73
051615 -13 1971  DL4RBR TC2TR -20 (x5)
10m
UTC    dB Audio  Message
095415 -11 1203  DL4RBR UD8D -11
20m
UTC    dB Audio  Message
044645  -7 2461  DL4RBR AC5UV -12 (x6)
212130  -8 2777  DL4RBR LW1DZ RR73
212515 -16 1371  DL4RBR PP5HR -14 (x5)
122600 -11 1615  DL4RBR ER1SKI/P RR73
123115 -13 2538  DL1DVE/P DL4RBR JN59 (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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