DF5CU — 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: JN58

Receiver-side FT8 activity involving DF5CU, decoded by SO8OO in southeastern Poland. 50 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-08-22 and 2026-11-02.

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 50 FT8 messages attributed to DF5CU as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (62%), followed by 20 m (38%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (90%); the estimated median was -3 dB.

Overview

50
Messages attributed
4
UTC dates decoded
8
Active 15-min windows
-3 dB
Estimated median S/N

Bands

40m · 31 20m · 19
First attributed message: 2026-08-22
Last attributed message: 2026-11-02 17:35 UTC

Observed FT8 message patterns

Attributed sample
50 messages
Active dates
4 UTC dates
Estimated median S/N
-3 dB
Estimated 10th-90th percentile
-10 to +5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 45.

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 DF5CU 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 DF5CU

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
JN58 · 24 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
799 km (approx.)
Last such locator decoded
2026-10-24 16:30 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 UTCBandDF5CU S/NCounterpartCounterpart S/NMsgsCapture
11-02 17:35 40m - / - YO6LM -8 / - 2 Partial capture
11-02 17:34 40m -14 / - SV1DKR - / -5 2 ✓ Closing fragment
10-24 16:25 40m -2 / -9 YL3ARH -10 / -23 5 ✓ Full exchange observed
10-24 16:22 40m -6 / - SQ9SET - / - 2 Partial capture
10-24 16:17 40m -6 / -12 R6ZCE -2 / -10 3 Partial capture
10-09 19:21 40m - / 0 IR8PR -12 / - 2 ✓ Closing fragment
10-09 19:15 40m - / -16 UR9QQ -5 / - 4 ✓ Closing fragment
10-09 19:13 40m 0 / - LY4Q -5 / -4 2 ✓ Closing observed
10-09 19:12 40m -6 / - EB2EMZ - / -9 2 ✓ Closing fragment
10-09 19:07 40m 0 / -19 SP7TF -5 / +7 7 Partial capture
10-09 18:56 40m -6 / - OE2CAL - / - 2 Partial capture
10-09 18:52 40m +1 / -13 F1IQH -2 / - 3 ✓ Closing observed
10-09 18:51 40m +5 / - PA3AGN -9 / -1 5 ✓ Closing observed
08-22 16:47 20m -3 / - HA3HM - / +8 3 ✓ Closing fragment
08-22 16:43 20m -4 / -15 EC3A -10 / -3 4 ✓ Full exchange observed
08-22 16:38 20m +2 / - EC3A - / - 3 Partial capture
08-22 16:32 20m -10 / - SP6FME - / - 2 ✓ Closing fragment
08-22 16:29 20m -4 / - CR7BUJ -5 / - 3 ✓ Closing observed
08-22 16:25 20m -1 / - 4L7T - / - 4 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
161745  -2  434  DF5CU R6ZCE -12
161800  -7  947  R6ZCE DF5CU R-10
162115 -10  947  OE2CAL DF5CU JN58
162245  -5  947  SQ9SET DF5CU JN58 (x2)
162545 -12 1299  DF5CU YL3ARH -09
162600  -1  947  YL3ARH DF5CU R-23
162615  -8 1299  DF5CU YL3ARH RR73
162630  -3  947  YL3ARH DF5CU R-23 (x2)
163045  -4  947  RO2T DF5CU JN58
173445 -17  743  SV1DKR DF5CU R-05 (x2)
173530  -8 2679  DF5CU YO6LM KN25 (x2)
20m 
UTC    dB Audio  Message
163045  -4  708  CR7BUJ DF5CU 73
163215 -10  708  SP6FME DF5CU RR73 (x2)
163615  +0  707  4L7T DF5CU JN58
163815  +5  339  EC3A DF5CU JN58 (x3)
164030  +8  339  7Z1FF DF5CU JN58
164345  -5  339  EC3A DF5CU JN58
164400 -10 1872  DF5CU EC3A -15
164415  -4  339  EC3A DF5CU R-03 (x2)
164700  -1  339  HA3HM DF5CU JN58 (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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