DH1DO — 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: JO61

Receiver-side FT8 activity involving DH1DO, decoded by SO8OO in southeastern Poland. 155 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-15 and 2026-08-16.

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 155 FT8 messages attributed to DH1DO as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (79%), followed by 80 m (17%) and 20 m (3%). In this small sample, the estimated median decoder S/N was -8 dB; no usual signal pattern is inferred.

Overview

155
Messages attributed
2
UTC dates decoded
16
Active 15-min windows
-8 dB
Estimated median S/N

Bands

80m · 27 40m · 123 20m · 5
First attributed message: 2026-08-15
Last attributed message: 2026-08-16 15:37 UTC

Observed FT8 message patterns

Attributed sample
155 messages
Active dates
2 UTC dates
Estimated median S/N
-8 dB
Estimated 10th-90th percentile
-15 to 0 dB
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 14, moderate (-15 to -9 dB) 55, strong (≥ -8 dB) 86.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with DH1DO 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 DH1DO

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
JO61 · 50 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
642 km (approx.)
Last such locator decoded
2026-08-16 15:36 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 UTCBandDH1DO S/NCounterpartCounterpart S/NMsgsCapture
08-16 15:36 40m -6 / - 5Q1T/LH - / -4 2 Partial capture
08-16 15:34 40m -6 / - PE9JAN -20 / +3 2 Partial capture
08-16 15:30 40m -4 / - IU2HUQ - / +2 4 ✓ Closing fragment
08-16 15:29 40m -8 / - DL3IAK - / -11 2 ✓ Closing fragment
08-16 15:28 40m - / - UX7QV -8 / - 2 Partial capture
08-16 15:27 40m -6 / - DK6MR - / -2 2 ✓ Closing fragment
08-16 15:24 40m -7 / - DD7EE - / -6 2 ✓ Closing fragment
08-16 15:23 40m -3 / - DL7ACA -15 / - 2 ✓ Closing observed
08-16 15:21 40m -4 / 0 HG3FMZ -12 / +4 4 ✓ Full exchange observed
08-16 15:20 40m -3 / - TM0BSM - / -5 3 ✓ Closing fragment
08-16 09:32 40m - / -4 DL3MIB -16 / - 4 Partial capture
08-16 09:19 80m -6 / - DO1OAS - / -6 2 ✓ Closing fragment
08-16 09:17 80m -4 / - DO9BAU -19 / -9 3 ✓ Closing observed
08-16 09:10 10m - / +4 IX1HPN -10 / - 3 ✓ Closing fragment
08-16 09:07 10m - / -7 M0BEW 0 / - 2 ✓ Closing fragment
08-16 09:02 20m -12 / - OS9T - / - 4 Partial capture
08-16 08:49 40m -12 / -5 UT4PA +2 / -6 5 ✓ Full exchange observed
08-16 08:49 40m -11 / - PF1B - / +2 2 ✓ Closing fragment
08-16 08:48 40m -10 / - DL3BH - / -9 2 ✓ Closing fragment
08-16 08:45 40m -8 / - DF6JF - / -14 3 ✓ Closing fragment
08-16 08:39 40m -16 / - DF6JF - / - 2 Partial capture
08-15 23:07 80m - / - 9A4ZM +12 / - 3 Partial capture
08-15 23:05 80m +6 / -1 UA4FKT +5 / -6 5 ✓ Full exchange observed
08-15 23:04 80m +7 / +9 DO1BOC +3 / -5 5 ✓ Full exchange observed
08-15 23:02 80m +7 / - GI4DOH - / -1 3 ✓ Closing fragment
08-15 22:59 80m - / - 9A4ZM +12 / - 2 Partial capture
08-15 22:58 80m -3 / 0 HB9EFK +14 / +3 5 ✓ Full exchange observed
08-15 22:57 80m - / - UA4FKT +11 / - 2 Partial capture
08-15 22:57 80m +12 / -2 YO6LM +7 / -3 8 ✓ Full exchange observed
08-15 22:56 80m +2 / - DL1UDO - / -6 2 ✓ Closing fragment
08-15 22:54 40m - / - EA5HM -12 / - 2 Partial capture
08-15 15:52 40m -14 / - DD3DH - / - 2 ✓ Closing fragment
08-15 15:48 40m -10 / - OE4LTB - / -3 2 ✓ Closing fragment
08-15 15:43 40m -9 / - SV2HTW - / -16 4 ✓ Closing fragment
08-15 15:40 40m -11 / - DG4BBK - / -13 3 ✓ Closing fragment
08-15 15:38 40m -14 / -12 LZ3HG -18 / - 2 ✓ Closing observed
08-15 15:35 40m -9 / - SK6MA/LH - / - 3 Partial capture
08-15 15:30 40m -12 / - HA1ZN - / -5 2 ✓ Closing fragment
08-15 15:27 40m -8 / - DL1LKG - / +1 3 ✓ Closing fragment
08-15 15:23 40m -10 / - <...> - / -4 2 Partial capture
08-15 13:10 40m -12 / - PA0MUS - / -5 3 ✓ Closing fragment
08-15 13:09 40m -15 / -6 UT2PC -7 / - 2 Partial capture
08-15 13:07 40m -15 / - DB1BC - / - 2 ✓ Closing fragment
08-15 13:05 40m -17 / - DK3WH - / - 2 Partial capture
08-15 13:04 40m -16 / - PE1NAO - / -9 2 ✓ Closing fragment
08-15 13:02 40m -12 / - G4UJS - / -15 2 ✓ Closing fragment
08-15 12:58 40m -11 / - SQ3WL - / - 3 Partial capture
08-15 12:56 40m -16 / - DG5DR - / -1 2 Partial capture
08-15 12:55 40m -15 / - PA7D - / -7 2 ✓ Closing fragment
08-15 12:53 40m -14 / - DK0KG - / +5 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
152730  -7  647  DK6MR DH1DO RR73
152800  -9  647  CQ DH1DO JO61
152815  -9  648  DH1DO UX7QV KN29 (x2)
152900 -10  647  DL3IAK DH1DO -11 (x2)
153000  -8  647  IU2HUQ DH1DO R+02 (x4)
153430  -7  647  HG6IOM DH1DO RR73
153445 -20 2137  DH1DO PE9JAN JO22
153500  -6  647  PE9JAN DH1DO +03
153645  -4  647  5Q1T/LH DH1DO JO61 (x2)
80m 
UTC    dB Audio  Message
230700 +11 1040  DH1DO 9A4ZM JN86 (x3)
091730  -6  687  DO9BAU DH1DO R-09
091745 -19 2201  DH1DO DO9BAU RR73
091800  -3  687  DO9BAU DH1DO 73
091830  -1  687  CQ DH1DO JO61
091900  -5  687  DO1OAS DH1DO R-06 (x2)
092000  +0  687  CQ DH1DO JO61 (x6)
10m 
UTC    dB Audio  Message
090700  -2  518  DH1DO M0BEW -07 (x2)
091015  -6 1905  DH1DO IX1HPN +04 (x3)
20m 
UTC    dB Audio  Message
163930 -21 1808  DH1DO ER1WK/QRP -11
090215  -6  889  M0XCZ DH1DO JO61
090245 -12  889  OS9T DH1DO JO61 (x4)

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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