DF7AU — 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 DF7AU, decoded by SO8OO in southeastern Poland. 104 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-07-06 and 2026-09-23.

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 104 FT8 messages attributed to DF7AU as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (69%), followed by 20 m (21%) and 80 m (10%). Several six-hour UTC windows tied for the largest share (84%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.

Overview

104
Messages attributed
8
UTC dates decoded
15
Active 15-min windows
-7 dB
Estimated median S/N

Bands

80m · 10 40m · 72 20m · 22
First attributed message: 2026-07-06
Last attributed message: 2026-09-23 15:26 UTC

Observed FT8 message patterns

Attributed sample
104 messages
Active dates
8 UTC dates
Estimated median S/N
-7 dB
Estimated 10th-90th percentile
-19 to +3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 23, moderate (-15 to -9 dB) 23, strong (≥ -8 dB) 58.

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.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with DF7AU 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 DF7AU

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 · 77 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
916 km (approx.)
Last such locator decoded
2026-09-23 15:23 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 UTCBandDF7AU S/NCounterpartCounterpart S/NMsgsCapture
09-23 15:33 40m - / 0 3Z100PKP -5 / - 3 Partial capture
09-23 15:26 40m -15 / - PG9S - / -4 2 ✓ Closing fragment
09-23 15:23 40m -12 / - R3LCW - / - 2 Partial capture
09-22 06:05 80m -4 / - UKRAINE - / - 5 Partial capture
09-22 06:00 80m -4 / - GM6URC - / -9 5 Partial capture
09-03 06:52 40m -18 / - 9A4ZM - / - 6 Partial capture
09-03 06:36 40m -14 / - EA8UP - / - 2 Partial capture
09-03 06:28 40m -16 / - EW2GI - / - 4 Partial capture
09-03 06:24 40m -12 / - 4O7CC - / -15 2 ✓ Closing fragment
09-03 06:22 40m -20 / - 9A4ZM - / - 2 Partial capture
09-03 06:18 40m -9 / -18 DL9KM -9 / - 4 ✓ Closing observed
09-03 06:15 40m -20 / -12 YU5DR -12 / - 3 ✓ Closing observed
09-01 06:56 40m -22 / - SO100PKP - / - 2 Partial capture
09-01 06:49 40m -20 / - EA3ACQ - / -4 3 Partial capture
09-01 06:45 40m -17 / - EA5KA - / - 2 Partial capture
09-01 06:43 40m -22 / - MW9VVX - / -6 2 Partial capture
08-28 05:24 20m +9 / - AG7N - / - 2 Partial capture
08-28 05:20 20m +14 / - WU8T - / - 7 Partial capture
08-25 06:11 40m -6 / - NI4Z - / - 4 Partial capture
08-25 06:07 40m -4 / - YT2FA - / - 3 Partial capture
08-25 06:06 40m -5 / - 9A0HRS - / - 5 Partial capture
08-25 06:01 40m - / -10 GJ0KYZ -12 / - 3 ✓ Closing fragment
08-25 05:58 40m -8 / - GM1SXW - / -15 4 ✓ Closing fragment
08-25 05:52 40m -4 / - CT7AUT - / -18 6 ✓ Closing fragment
08-25 05:44 40m -2 / - F4IVG -18 / -8 4 ✓ Closing observed
08-25 05:42 40m +1 / -5 F4JJA -15 / +6 5 ✓ Full exchange observed
08-25 05:40 40m -8 / - CR7BRV - / +5 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
063715 -13 2204  EA8UP DF7AU JO41
064145 -15 2204  9A2KO DF7AU JO41
065215 -20 2204  9A4ZM DF7AU JO41 (x6)
152315 -14 1925  R3LCW DF7AU JO41 (x2)
152615 -17 1925  PG9S DF7AU -04 (x2)
153330  -5 1425  DF7AU 3Z100PKP +00 (x3)
80m 
UTC    dB Audio  Message
060045  -3 2168  GM6URC DF7AU JO41 (x5)
060515  -5 2168  UKRAINE DF7AU JO41 (x5)
20m 
UTC    dB Audio  Message
052000 +16  384  WU8T DF7AU JO41 (x7)
052445  +6  384  AG7N DF7AU JO41 (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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