DD5DD — 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: JO50

Receiver-side FT8 activity involving DD5DD, decoded by SO8OO in southeastern Poland. 260 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 11 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-07.

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 260 FT8 messages attributed to DD5DD as the transmitting token by decoded message structure across 11 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (96%), followed by 80 m (4%). Most decodes (63%) fell within the six-hour window 12:00-18:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's moderate S/N range (63%); the estimated median was -11 dB.

Overview

260
Messages attributed
11
UTC dates decoded
68
Active 15-min windows
-11 dB
Estimated median S/N

Bands

80m · 10 40m · 250
First attributed message: 2026-06-07
Last attributed message: 2026-10-07 06:59 UTC

Observed FT8 message patterns

Attributed sample
260 messages
Active dates
11 UTC dates
Estimated median S/N
-11 dB
Estimated 10th-90th percentile
-20 to -7 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 46, moderate (-15 to -9 dB) 165, strong (≥ -8 dB) 49.

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 DD5DD 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 DD5DD

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
JO50 · 207 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
770 km (approx.)
Last such locator decoded
2026-10-07 06:50 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 UTCBandDD5DD S/NCounterpartCounterpart S/NMsgsCapture
10-07 07:00 40m - / -5 SQ2MMX -13 / - 2 ✓ Closing fragment
10-07 06:58 40m -11 / -13 F1DXP -4 / -14 3 ✓ Full exchange observed
10-07 06:47 40m -13 / - EA2KV -11 / - 2 ✓ Closing observed
10-07 06:30 40m - / -7 F4FQY -6 / - 2 ✓ Closing fragment
10-07 06:25 40m -10 / - IK2SAR - / - 2 Partial capture
10-07 06:19 40m -10 / - UA2FFD - / - 2 Partial capture
10-07 06:13 40m -9 / - IK2SAR - / - 2 Partial capture
10-07 06:12 40m -10 / - IZ3NLT - / - 2 Partial capture
10-07 06:02 40m -12 / -23 LZ3QC +3 / -13 4 Partial capture
10-07 05:57 40m -8 / - HA8UM - / - 2 Partial capture
10-07 05:56 40m -6 / - TM47CDXC - / - 2 Partial capture
10-07 05:53 40m -12 / - S57ACD - / - 2 Partial capture
10-07 05:51 40m -8 / - 9A3CHF - / - 2 Partial capture
10-07 05:51 40m -10 / - UA2FFD - / - 2 Partial capture
10-07 05:49 40m -10 / - S57ACD - / - 3 Partial capture
10-07 05:46 40m -11 / - EC5M - / - 3 Partial capture
10-07 05:43 40m -9 / -14 SV7BAY -1 / -10 6 ✓ Full exchange observed
10-07 05:41 40m -11 / - RD3FY - / - 2 Partial capture
10-07 05:40 40m -10 / - SQ8V - / +3 3 ✓ Closing fragment
10-07 05:39 40m -11 / - LZ2PAJ - / - 3 Partial capture
10-07 05:36 40m -11 / -17 LZ2VQ -2 / -12 4 ✓ Full exchange observed
10-07 05:34 40m -10 / - K0HB - / - 2 Partial capture
10-07 05:32 40m -9 / - S57ACD - / - 3 Partial capture
10-07 05:29 40m -4 / -5 CT2GHB -15 / -6 3 ✓ Full exchange observed
10-07 05:02 40m - / -17 YO9HP +10 / - 2 ✓ Closing fragment
10-07 04:51 40m - / -13 R2AL -2 / - 4 ✓ Closing fragment
10-07 04:50 40m - / -11 IZ8GUU -16 / - 2 ✓ Closing fragment
10-07 04:13 40m - / - R2AL +7 / - 4 Partial capture
10-07 03:15 40m - / -16 UT5ECZ +6 / - 2 ✓ Closing fragment
10-07 03:05 40m - / -19 SV3AUW -2 / - 5 ✓ Closing fragment
10-07 02:14 40m - / -15 RM8L +1 / - 2 ✓ Closing fragment
10-07 02:10 40m - / -18 RW3QU -4 / - 2 Partial capture
10-06 22:10 40m - / - F4BYA -6 / - 4 Partial capture
10-06 22:05 40m - / -21 PI4DX -2 / - 5 ✓ Closing fragment
10-06 22:00 40m - / - F4BYA -5 / - 4 Partial capture
10-06 21:52 40m - / - F4BYA -1 / - 3 Partial capture
10-06 21:42 40m - / - UA4FKT -5 / - 2 Partial capture
10-06 21:34 40m - / +6 DG1ROL -14 / - 4 ✓ Closing fragment
10-06 20:25 40m - / -15 ON4ASV +2 / - 2 ✓ Closing fragment
10-06 20:15 40m - / -20 OE1KLA +7 / - 3 ✓ Closing fragment
10-06 20:14 40m - / -17 F4LHL -4 / - 10 ✓ Closing fragment
10-06 20:00 40m - / -14 G1XOW -6 / - 2 ✓ Closing fragment
10-06 19:56 40m - / -25 OM5AKC -8 / - 2 Partial capture
10-06 18:35 40m -15 / -23 OK1ACE -8 / - 4 Partial capture
10-06 17:45 40m - / -20 IK5NQI -7 / - 2 Partial capture
10-06 17:41 40m - / -17 G0RVY -6 / - 2 ✓ Closing fragment
10-06 17:37 40m - / -17 EU4U +4 / - 3 ✓ Closing fragment
10-06 17:12 40m - / -10 IU1TKQ -9 / - 3 Partial capture
10-06 17:04 40m - / -5 IU1TKQ -12 / - 2 Partial capture
10-06 16:51 40m -19 / -19 IV3VFR +12 / -9 7 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
062930 -11 2733  F4CQS DD5DD JO50
063015  -4 2559  DD5DD F4FQY -07 (x2)
063545 -20 1994  DD5DD M9HEB 73
063700 -13 2734  EU1EU DD5DD JO50
064730 -13 2733  EA2KV DD5DD JO50
064815 -11 2517  DD5DD EA2KV RR73
065000 -11 2733  CQ DD5DD JO50
065245 -13 1595  DD5DD SP9OJ +00 (x2)
065845  -3 2660  DD5DD F1DXP -13
065900 -11 2733  F1DXP DD5DD R-14
065915  -5 2660  DD5DD F1DXP RR73
070015 -10 1541  DD5DD SQ2MMX -05 (x2)
80m 
UTC    dB Audio  Message
141715 -11 2180  CQ DD5DD JO50 (x4)
141915  -9 2180  DJ8TX DD5DD -05 (x2)
142015 -10 2180  CQ DD5DD JO50 (x4)

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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