DF9DT — 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: JO52

Receiver-side FT8 activity involving DF9DT, decoded by SO8OO in southeastern Poland. 75 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 10 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-11-01.

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 75 FT8 messages attributed to DF9DT as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (56%), followed by 80 m (36%) and 20 m (8%). Most decodes (83%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

75
Messages attributed
10
UTC dates decoded
22
Active 15-min windows
-14 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-11-01 15:10 UTC

Observed FT8 message patterns

Attributed sample
75 messages
Active dates
10 UTC dates
Estimated median S/N
-14 dB
Estimated 10th-90th percentile
-20 to -8 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 32, moderate (-15 to -9 dB) 31, strong (≥ -8 dB) 12.

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 DF9DT

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
JO52 · 28 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
803 km (approx.)
Last such locator decoded
2026-11-01 15:08 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 UTCBandDF9DT S/NCounterpartCounterpart S/NMsgsCapture
11-01 15:07 40m -12 / - OH3HNU - / -12 5 ✓ Closing fragment
11-01 10:46 40m - / -3 HA1BF -11 / - 2 ✓ Closing fragment
11-01 10:12 40m - / -9 LY3PW -4 / - 6 Partial capture
11-01 09:39 40m - / -11 YO2CK -4 / - 2 ✓ Closing fragment
10-27 19:44 40m - / +2 M8GSY -5 / - 2 ✓ Closing fragment
10-21 19:17 80m -8 / -1 DO6LE +8 / - 4 ✓ Full exchange observed
08-15 18:33 80m -10 / - LA1SDX - / - 3 Partial capture
08-15 18:25 80m -12 / -4 DG5BCR -5 / - 5 ✓ Full exchange observed
08-15 16:58 40m -20 / -17 OK1VCB -12 / 0 5 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
101230  -6 1059  DF9DT LY3PW -09 (x6)
104630 -12 1390  DF9DT HA1BF -03 (x2)
105200 -24 1782  G0IXE DF9DT 73
150615 -18 1768  GB3RS DF9DT JO52
150745 -11  687  OH3HNU DF9DT JO52 (x5)
80m
UTC    dB Audio  Message
182500  -8  701  DG5BCR DF9DT JO52
182515  -4  700  DF9DT DG5BCR -04
182530 -15  700  DG5BCR DF9DT R+11
182545  -6  700  DF9DT DG5BCR RR73
182600 -12  701  DG5BCR DF9DT 73
182815 -14 1438  DF9DT DH8FB RR73
183030 -17 1953  HB3YYA DF9DT R+02
183300 -12 2112  LA1SDX DF9DT JO52 (x3)
191700  +8 1860  DF9DT DO6LE -01
191715  -6 1861  DO6LE DF9DT R+14
191730  +7 1860  DF9DT DO6LE RR73
191745 -11 1861  DO6LE DF9DT 73
191830 -11 1266  DF9DT SP7ENZ -16

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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