DF0US — 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: JO41

Receiver-side FT8 activity involving DF0US, decoded by SO8OO in southeastern Poland. 146 FT8 messages attributed to this token as transmitter, on 160m, 80m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-30 and 2026-10-21.

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 146 FT8 messages attributed to DF0US as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (58%), followed by 80 m (42%). In this small sample, the estimated median decoder S/N was -8 dB; no usual signal pattern is inferred.

Overview

146
Messages attributed
2
UTC dates decoded
12
Active 15-min windows
-8 dB
Estimated median S/N

Bands

160m · 85 80m · 61
First attributed message: 2026-09-30
Last attributed message: 2026-10-21 21:04 UTC

Observed FT8 message patterns

Attributed sample
146 messages
Active dates
2 UTC dates
Estimated median S/N
-8 dB
Estimated 10th-90th percentile
-18 to +5 dB
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 33, moderate (-15 to -9 dB) 39, strong (≥ -8 dB) 74.

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 DF0US 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 DF0US

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
JO41 · 60 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
916 km (approx.)
Last such locator decoded
2026-10-21 21:02 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 UTCBandDF0US S/NCounterpartCounterpart S/NMsgsCapture
10-21 21:02 80m - / - DA125RH -10 / - 2 ✓ Closing fragment
10-21 21:02 80m +2 / - P4/WE9V - / -21 4 Partial capture
10-21 21:01 80m +6 / -9 EW8DU -7 / -14 11 Partial capture
10-21 20:58 80m +7 / - DH5BO -14 / -9 4 ✓ Full exchange observed
10-21 20:55 80m +8 / +10 DO5RBB -3 / -7 6 ✓ Full exchange observed
10-21 20:55 80m +4 / - OZ5AGJ -11 / -2 3 ✓ Full exchange observed
10-21 20:49 80m +4 / -7 DG0JJH -16 / - 3 ✓ Closing observed
10-21 20:44 80m +2 / +6 DL1DV +12 / -6 5 ✓ Full exchange observed
10-21 20:43 80m 0 / 0 DK7UY +4 / +1 5 ✓ Full exchange observed
10-21 20:41 80m 0 / -9 LZ2INP +7 / -12 5 ✓ Full exchange observed
10-21 20:41 80m - / - DL9KM -2 / - 2 Partial capture
10-21 20:40 80m 0 / +6 DA6SL -6 / +1 5 ✓ Full exchange observed
10-21 20:40 80m +2 / - DJ3KS -7 / -2 3 ✓ Closing observed
10-21 20:39 80m - / - SV1GYG -3 / - 2 Partial capture
10-21 20:37 80m -4 / -9 IQ4JO +2 / -12 5 ✓ Full exchange observed
10-21 20:35 80m +3 / -3 F1IQH -16 / -16 5 ✓ Full exchange observed
10-21 20:35 80m 0 / -6 SP9UPH +15 / -8 4 ✓ Full exchange observed
10-21 20:33 80m +1 / -17 RA6OY +10 / -9 7 ✓ Full exchange observed
10-21 20:31 80m +6 / - PA0LDE -10 / -15 4 ✓ Closing observed
10-21 20:31 80m -5 / - DK3ME 0 / -1 3 ✓ Full exchange observed
10-21 20:28 80m -1 / - DO1WGK -4 / -1 4 ✓ Closing observed
10-21 20:28 80m -2 / - SM7WVZ -10 / -20 5 ✓ Closing observed
10-21 20:27 80m +4 / 0 SP2GR -4 / -8 5 ✓ Full exchange observed
10-21 20:26 80m - / +9 DO5PY -2 / - 3 ✓ Closing fragment
10-21 20:22 80m -4 / +2 ON4MAP -3 / -11 7 ✓ Full exchange observed
10-21 20:22 80m -2 / -10 RX3ASQ +1 / -14 5 ✓ Full exchange observed
09-30 21:45 160m - / - PE1K -20 / - 2 Partial capture
09-30 21:03 160m -3 / -7 UB1CCL -5 / -10 5 ✓ Full exchange observed
09-30 20:59 160m -16 / - DL9KM - / -6 2 ✓ Closing fragment
09-30 20:57 160m -8 / -11 OM3PR -1 / 0 7 ✓ Full exchange observed
09-30 20:49 160m -17 / -19 IU3RRX -5 / -12 5 ✓ Full exchange observed
09-30 20:48 160m -9 / - DG5PW - / -10 2 ✓ Closing fragment
09-30 20:46 160m -12 / - DJ3QK - / -4 2 ✓ Closing fragment
09-30 20:45 160m -18 / -14 DK1MBY -14 / -12 4 ✓ Full exchange observed
09-30 20:43 160m -12 / -3 SP1ZX -10 / - 4 ✓ Closing observed
09-30 20:40 160m -16 / -15 LA9JKA -13 / -2 12 ✓ Full exchange observed
09-30 20:24 160m -14 / - PE2AE - / -5 2 ✓ Closing fragment
09-30 20:19 160m - / - DD7EE -16 / - 10 Partial capture
09-30 20:06 160m -15 / +1 OK2USM -6 / -15 6 ✓ Full exchange observed
09-30 20:03 160m -18 / +5 9A4ZM +5 / +3 5 ✓ Full exchange observed
09-30 19:53 160m - / -16 IK8INR -20 / - 2 Partial capture
09-30 19:51 160m -8 / - ON7KEI -21 / -19 3 ✓ Closing observed
09-30 19:49 160m -11 / - DL0ABT -24 / - 3 ✓ Closing observed
09-30 19:47 160m -18 / - DL1CC +6 / - 5 ✓ Full exchange observed
09-30 19:46 160m - / - 9A4ZM +7 / - 2 Partial capture
09-30 19:44 160m -15 / -1 DM5KM -2 / - 5 ✓ Closing observed
09-30 19:44 160m -16 / -24 R6JAG -16 / -25 6 ✓ Full exchange observed
09-30 19:40 160m -16 / +4 DM5KM -18 / +9 3 Partial capture
09-30 19:40 160m -17 / -15 RN1CW -11 / -5 6 ✓ 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
210215  -8 2804  DF0US SV1HFE KM18
210215  -7 1816  DF0US EW8DU R-03
210230  +5 1816  P4/WE9V DF0US JO41
210245 -10 1817  DF0US EW8DU R-03
210245 -11 2260  DF0US DA125RH +15
210300  +0 1816  P4/WE9V DF0US R-21
210315  -7 1817  DF0US EW8DU R-03
210315  -8 2260  <DF0US> DA125RH RR73
210330  +1 1816  P4/WE9V DF0US R-21
210345  -6 1817  DF0US EW8DU R-03
210400  +3 1816  P4/WE9V DF0US R-21
210415  -5 1817  DF0US EW8DU R-03 (x3)
210945 -19 1432  DF0US DO6KGS JO50
160m 
UTC    dB Audio  Message
205930 -19 1046  DL9KM DF0US -06 (x2)
210130  -4 1046  CQ DF0US JO41 (x4)
210315  -3 1046  DF0US UB1CCL KO48
210330  -5 1046  UB1CCL DF0US -10
210345  -2 1046  DF0US UB1CCL R-07
210400  -1 1046  UB1CCL DF0US RR73
210415 -10 1046  DF0US UB1CCL 73
214330  +1 1046  CQ DF0US JO41
214345 -21 1453  DF0US R3ICU KO66
214515 -18 1046  DF0US PE1K JO33 (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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