DN9DA — 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: JN48

Receiver-side FT8 activity involving DN9DA, decoded by SO8OO in southeastern Poland. 310 FT8 messages attributed to this token as transmitter, on 10m, across 11 UTC dates in the available aggregate history. Observed between 2026-06-20 and 2026-10-11.

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 310 FT8 messages attributed to DN9DA as the transmitting token by decoded message structure across 11 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (100%). Most decodes (72%) fell within the six-hour window 13:00-19:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11.1 dB.

Overview

310
Messages attributed
11
UTC dates decoded
52
Active 15-min windows
-11.1 dB
Estimated median S/N

Bands

10m · 310
First attributed message: 2026-06-20
Last attributed message: 2026-10-11 10:53 UTC

Observed FT8 message patterns

Attributed sample
310 messages
Active dates
11 UTC dates
Estimated median S/N
-11.1 dB
Estimated 10th-90th percentile
-19 to -7 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 86, moderate (-15 to -9 dB) 145, strong (≥ -8 dB) 79.

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 DN9DA 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 DN9DA

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
JN48 · 178 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
941 km (approx.)
Last such locator decoded
2026-10-11 10:51 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 UTCBandDN9DA S/NCounterpartCounterpart S/NMsgsCapture
10-31 11:55 10m - / -1 CT2HEX -6 / - 2 ✓ Closing fragment
10-11 10:46 10m -16 / - OH3MB - / - 2 Partial capture
08-22 10:57 10m - / -20 DF3VG -12 / - 3 ✓ Closing fragment
08-22 09:55 10m - / +8 LZ1ZM -10 / - 2 ✓ Closing fragment
08-22 07:16 10m - / +5 R7OV -10 / - 2 ✓ Closing fragment
08-21 17:05 10m -12 / - US5ZFT - / -6 3 Partial capture
08-21 17:01 10m -7 / - YL2KF - / +10 3 ✓ Closing fragment
08-21 16:10 10m -9 / - M6PVT - / - 3 Partial capture
08-21 16:05 10m -10 / - DJ3HW - / - 2 Partial capture
08-21 16:00 10m -9 / -12 G1OZO -15 / - 2 ✓ Closing observed
08-21 15:56 10m -18 / - YU1JW - / 0 3 ✓ Closing fragment
08-21 15:53 10m -21 / - RW1AI - / -14 2 ✓ Closing fragment
08-21 15:52 10m -18 / - F5SZY - / - 2 ✓ Closing fragment
08-21 15:28 10m - / - DL9ATW +6 / - 4 Partial capture
08-21 15:21 10m -13 / - DA6NEL - / - 2 ✓ Closing fragment
08-21 15:17 10m -13 / - SP8V - / +8 7 Partial capture
08-21 15:15 10m -10 / - SP8AOV - / - 3 ✓ Closing fragment
08-21 15:05 10m -12 / - DA6PI - / -7 4 ✓ Closing fragment
08-21 14:58 10m -13 / - F5ADE - / - 2 Partial capture
08-21 14:46 10m -16 / - DH5KLI -11 / +2 3 Partial capture
08-21 14:43 10m -13 / -4 PD1HTW -14 / -4 5 ✓ Full exchange observed
08-21 13:24 10m -20 / - ES1KK - / -6 3 ✓ Closing fragment
08-21 13:17 10m -19 / - SQ5NAN - / +4 3 ✓ Closing fragment
08-21 13:13 10m -20 / - M7YFL - / -4 2 Partial capture
08-21 13:11 10m -19 / - 2I0EVH - / - 3 ✓ Closing fragment
08-21 12:53 10m -18 / - G0CLT - / -4 2 ✓ Closing fragment
08-21 12:52 10m -16 / 0 LZ2CC -19 / +8 3 ✓ Full exchange observed
08-21 12:09 10m -18 / - E70SZ - / 0 2 Partial capture
08-21 12:05 10m -22 / - YO4HQF - / -17 2 Partial capture
08-21 11:58 10m -21 / - G7KUJ - / -24 3 ✓ Closing fragment
08-21 10:46 10m -14 / - LA3YNA - / - 2 Partial capture
08-21 10:18 10m - / +5 LZ4VR -6 / - 3 ✓ Closing fragment
08-16 10:06 10m -8 / - IU0MBJ - / - 2 Partial capture
08-16 10:01 10m -14 / - LA2GCA - / - 2 Partial capture
08-16 09:57 10m -20 / -12 UX3HX -17 / - 4 ✓ Closing observed
08-16 08:49 10m - / -8 DL2FK -12 / - 2 ✓ Closing fragment
08-15 11:19 10m - / +3 IT9VCE -10 / - 2 ✓ Closing fragment
08-15 08:17 10m - / -1 IT9CMZ -20 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

10m 
UTC    dB Audio  Message
095600 -10 1163  DN9DA LZ1ZM RR73
105230 -20 2121  DN9DA II7MGBT -06
105730 -14 1870  DN9DA DF3VG JN48 (x3)
124115 -14  928  DN9KX DN9DA RR73
083345  -4 1519  DN9DA RA9ACA -09
104600 -17 1046  OH3MB DN9DA JN48
104645 -13 1047  C91RU DN9DA JN48
104800 -15 1047  OH3MB DN9DA JN48
105030 -18 1095  CQ DN9DA JN48                         a1 (x2)
105300 -20 1250  SP9XG DN9DA +10
115515  -8  980  DN9DA CT2HEX -01 (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

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee