DF1DN — 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 DF1DN, decoded by SO8OO in southeastern Poland. 29 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, 10m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-15.

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 29 FT8 messages attributed to DF1DN 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 (52%), followed by 60 m (24%) and 20 m (17%). Most decodes (66%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (72%); the estimated median was -19 dB.

Overview

29
Messages attributed
8
UTC dates decoded
14
Active 15-min windows
-19 dB
Estimated median S/N

Bands

60m · 7 40m · 15 20m · 5 10m · 2
First attributed message: 2026-06-08
Last attributed message: 2026-09-15 20:30 UTC

Observed FT8 message patterns

Attributed sample
29 messages
Active dates
8 UTC dates
Estimated median S/N
-19 dB
Estimated 10th-90th percentile
-24 to -10 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 21, moderate (-15 to -9 dB) 8, strong (≥ -8 dB) 0.

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 DF1DN 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 DF1DN

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 · 20 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
916 km (approx.)
Last such locator decoded
2026-09-15 20:30 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 UTCBandDF1DN S/NCounterpartCounterpart S/NMsgsCapture
10-15 15:40 40m - / - DL2BCY -15 / - 3 Partial capture
09-16 09:03 40m - / -13 DJ3NJ -20 / - 2 ✓ Closing fragment
09-16 08:59 40m - / 0 SQ9SZ -13 / - 5 ✓ Closing fragment
09-16 08:42 40m - / -9 DL6ZNG +5 / - 4 ✓ Closing fragment
09-15 20:30 60m -18 / +1 F5MYK -13 / - 3 ✓ Closing observed
09-15 20:27 60m -20 / -3 DK7ZT -18 / 0 4 ✓ Full exchange observed
09-15 20:25 60m - / +6 DL7ARV +4 / - 4 ✓ Closing fragment
09-15 20:23 60m -23 / +10 ON7GB -7 / - 9 ✓ Closing observed
09-15 20:22 60m - / - DD6ZV -4 / - 6 Partial capture
09-15 20:21 60m -17 / - G0AZH -10 / +1 7 Partial capture
09-15 20:21 60m - / - OM3PR -18 / - 5 Partial capture
09-15 20:21 60m -19 / -4 SP5JMA -19 / - 3 ✓ Closing observed
09-15 17:23 60m -20 / - ON8DX -20 / - 2 ✓ Closing observed
09-15 16:36 60m - / -15 S51CN -11 / - 3 ✓ Closing fragment
09-12 15:47 40m -18 / - Z31PM - / - 2 Partial capture
09-12 11:26 40m - / +6 DL0HAM +6 / - 2 Partial capture
09-12 11:20 40m - / -25 HA0AA -3 / - 3 Partial capture
09-11 16:35 40m -13 / - EX7CQ - / - 7 Partial capture
09-11 12:32 40m - / -5 SQ2ODE -2 / - 2 ✓ Closing fragment
09-11 12:12 40m - / +4 OZ0A -16 / - 3 ✓ Closing fragment
08-31 08:04 20m - / -15 F5IXN +13 / - 3 ✓ Closing fragment
08-30 09:05 20m - / -8 F1MBL -2 / - 2 ✓ Closing fragment
08-29 17:23 40m -15 / - LZ6C - / - 3 Partial capture
08-29 17:17 40m - / -13 OE2CAL +6 / - 2 ✓ Closing fragment
08-12 14:18 20m - / -19 OK3FP -2 / - 6 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
084230  +7  882  DF1DN DL6ZNG JO52 (x4)
085930 -13  866  DF1DN SQ9SZ +00 (x5)
090330 -20 1889  DF1DN DJ3NJ R-13 (x2)
094830 -10 1401  DF1DN SP7ROM JO91
154000 -13 1738  DF1DN DL2BCY JO43 (x3)
60m 
UTC    dB Audio  Message
202715  +5  659  DF1DN DL7ARV R+06
202745  -5 2122  DF1DN ON7GB JO21
202745  -8 1256  DF1DN OM3PR JN87
202745 -17 2237  DF1DN F5MYK IN97
202745  +5  659  DF1DN DL7ARV 73
202745 -16 1901  DF1DN DK7ZT -03
202815  -8 2122  DF1DN ON7GB R+10
202830 -23 1854  ON7GB DF1DN RR73
202845  -6 2122  DF1DN ON7GB 73
202900 -19 1855  DK7ZT DF1DN R+00
202915 -19 1901  DF1DN DK7ZT RR73
202930 -22 1855  DK7ZT DF1DN 73
203000 -18 1854  F5MYK DF1DN JO41
203015 -12 2237  DF1DN F5MYK +01 (x2)
20m 
UTC    dB Audio  Message
111315 -15 1911  DF1DN IU3MAG RR73
114945 -17  963  DF1DN SA6BZZ -07
115915 -24 1960  DF1DN HB9CNU RR73
141815  -3  980  DF1DN OK3FP -19 (x6)
090515  +1 1192  DF1DN F1MBL -08 (x2)
091015 -15 1418  DF1DN LZ6C RR73
080400 +12 2650  DF1DN F5IXN JN23 (x3)

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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