DF0NN — 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: JO31

Receiver-side FT8 activity involving DF0NN, decoded by SO8OO in southeastern Poland. 1,496 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 41 UTC dates in the available aggregate history. Observed between 2026-08-06 and 2026-10-18.

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 1,496 FT8 messages attributed to DF0NN as the transmitting token by decoded message structure across 41 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (96%), followed by 20 m (4%). The busiest six-hour window was 13:00-19:00 UTC, containing 45% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

1,496
Messages attributed
41
UTC dates decoded
213
Active 15-min windows
-12 dB
Estimated median S/N

Bands

First attributed message: 2026-08-06
Last attributed message: 2026-10-18 10:43 UTC

Observed FT8 message patterns

Attributed sample
1,496 messages
Active dates
41 UTC dates
Estimated median S/N
-12 dB
Estimated 10th-90th percentile
-19.6 to -3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 437, moderate (-15 to -9 dB) 597, strong (≥ -8 dB) 462.

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 DF0NN

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
JO31 · 884 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,054 km (approx.)
Last such locator decoded
2026-10-18 10:42 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 UTCBandDF0NN S/NCounterpartCounterpart S/NMsgsCapture
10-18 10:45 40m - / -15 OE1AES 0 / - 2 ✓ Closing fragment
10-18 10:42 40m -12 / -19 R2AL -7 / -19 7 ✓ Full exchange observed
10-18 10:37 40m - / +2 PE1EXQ -14 / - 2 Partial capture
10-18 10:36 40m - / - R2AL -6 / - 4 Partial capture
10-17 21:35 40m - / -14 EX7CQ -9 / - 2 ✓ Closing fragment
10-17 21:32 40m - / - RX9L -16 / - 2 ✓ Closing fragment
10-17 18:03 40m -14 / - HB9EKJ - / +4 2 ✓ Closing fragment
10-15 16:42 40m -13 / -16 UA3SNB -10 / - 4 ✓ Closing observed
10-15 16:38 40m -14 / - IK2EBP - / 0 3 Partial capture
10-15 16:36 40m -13 / - R8LCA - / -16 3 ✓ Closing fragment
10-15 16:33 40m - / -10 UA3SNB -7 / - 2 Partial capture
10-15 16:31 40m - / 0 PA2WDR -10 / - 2 ✓ Closing fragment
10-15 16:22 40m -11 / - DL8NDV/P - / -17 2 ✓ Closing fragment
10-15 16:17 40m -8 / -13 RC9WC -22 / -8 5 ✓ Full exchange observed
10-15 12:14 40m - / -6 S57CT -10 / - 2 ✓ Closing fragment
10-15 12:06 40m - / -20 HA3HZ -19 / - 3 ✓ Closing fragment
10-15 11:55 40m - / -1 S55OO -4 / - 2 ✓ Closing fragment
10-15 11:28 40m - / +10 DB5JH -17 / - 3 ✓ Closing fragment
10-15 11:17 40m - / - DG4FFF -4 / - 6 Partial capture
10-15 11:17 40m - / -1 DJ0WJ -5 / - 5 Partial capture
10-14 20:36 40m - / - JA4FKX -8 / - 2 Partial capture
10-14 20:27 40m - / -19 G4YAN -2 / - 13 Partial capture
10-13 21:14 40m -3 / - TA3BJK - / - 3 Partial capture
10-13 21:04 40m -4 / - UA9QFF - / -4 3 Partial capture
10-13 21:03 40m +10 / - VJ6X - / - 2 Partial capture
10-13 21:01 40m -2 / - BG5JKZ - / - 5 Partial capture
10-13 20:53 40m -9 / -19 RZ4FWA -14 / - 6 ✓ Closing observed
10-13 20:50 40m -17 / - R2ASY -12 / - 2 ✓ Closing observed
10-13 18:05 40m -11 / - RL2F - / - 3 ✓ Closing fragment
10-13 05:31 40m -11 / - IU8RFW - / -3 7 Partial capture
10-13 05:28 40m -14 / -13 IK4JPP -1 / -7 2 Partial capture
10-13 05:26 40m -19 / -6 YO3FFF -7 / +7 7 ✓ Full exchange observed
10-13 05:23 40m -16 / - 9A2WA - / 0 5 Partial capture
10-13 05:19 40m -11 / - SV2AJX - / -15 3 ✓ Closing fragment
10-13 05:01 40m - / -15 LZ936BA 0 / - 3 Partial capture
10-12 22:26 40m - / -14 EA5FD -10 / - 3 Partial capture
10-12 22:17 40m - / -3 CS8ABF -14 / - 2 ✓ Closing fragment
10-12 22:10 40m - / - UA9SY -2 / - 4 Partial capture
10-12 22:02 40m - / -16 EA5HM -2 / - 6 ✓ Closing fragment
10-12 15:56 40m -5 / -3 PD2MAC/P -10 / +2 2 Partial capture
10-12 15:52 40m +1 / 0 SA3LEN -6 / +7 4 ✓ Full exchange observed
10-12 15:46 40m -12 / - DF9ES - / +4 2 ✓ Closing fragment
10-12 15:43 40m -8 / - IZ8DBJ -14 / +1 4 ✓ Closing observed
10-12 15:38 40m - / -5 DL2NYC -7 / - 4 ✓ Closing fragment
10-12 15:38 40m -12 / -20 R3TH -10 / -15 5 Partial capture
10-11 14:37 40m - / -4 DK1HSI +4 / - 4 Partial capture
10-11 14:15 40m - / -1 DL1TRK -6 / - 2 ✓ Closing fragment
10-11 14:07 40m - / -7 DD1OO -10 / - 2 ✓ Closing fragment
10-11 14:03 40m - / -8 DH1AKG -8 / - 4 ✓ Closing fragment
10-11 13:59 40m - / - DM3PT -10 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
103700 -14  709  DF0NN PE1EXQ +02
103715 -11  709  CQ DF0NN JO31
103730 -14  967  DF0NN R2AL KO85
103800 -13  709  DF0NN PE1EXQ +06
103915 -13  709  CQ DF0NN JO31 (x2)
104230 -10  968  DF0NN R2AL KO85
104245 -12  709  R2AL DF0NN -19
104300  -8  968  DF0NN R2AL R-19
104315 -13  709  R2AL DF0NN RR73
104330  -5  968  DF0NN R2AL R-19
104345 -11  709  R2AL DF0NN RR73
104400  -6  968  DF0NN R2AL 73
104515  +1 1439  DF0NN OE1AES -15 (x2)
10m
UTC    dB Audio  Message
095145  -6  780  DF0NN EA3AKY JN01 (x2)
20m
UTC    dB Audio  Message
130230 -15 1493  TA4SSK DF0NN RRR (x2)
130330 -20 1493  CQ DF0NN JO31 (x4)
130530 -19 1493  YO6PNM DF0NN -07
130630 -21 1493  CQ DF0NN JO31                         a1 (x2)
130730 -17 1492  S57CT DF0NN +01
140330  -2 1167  DF0NN I4VJC JN54
174615  +6 2449  DF0NN IU5HIU JN53
174615  -1  312  DF0NN 4L7T -17
174645  +6 2449  DF0NN IU5HIU JN53
174645  +2  312  DF0NN 4L7T RR73

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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