DD1RO — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO71

Receiver-side FT8 activity involving DD1RO, decoded by SO8OO in southeastern Poland. 72 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 4 UTC dates in the available aggregate history. Observed between 2026-07-05 and 2026-09-20.

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 72 FT8 messages attributed to DD1RO 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 (53%), followed by 80 m (47%). Several six-hour UTC windows tied for the largest share (47%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -6 dB.

Overview

72
Messages attributed
4
UTC dates decoded
14
Active 15-min windows
-6 dB
Estimated median S/N

Bands

80m · 34 40m · 38
First attributed message: 2026-07-05
Last attributed message: 2026-09-20 19:11 UTC

Observed FT8 message patterns

Attributed sample
72 messages
Active dates
4 UTC dates
Estimated median S/N
-6 dB
Estimated 10th-90th percentile
-16 to 0 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 24, strong (≥ -8 dB) 40.

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 DD1RO 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 DD1RO

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
JO71 · 47 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
508 km (approx.)
Last such locator decoded
2026-09-20 19:11 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 UTCBandDD1RO S/NCounterpartCounterpart S/NMsgsCapture
09-20 19:11 80m 0 / - DL50IPARC - / - 2 Partial capture
09-20 19:07 80m +2 / - II4IANT - / - 2 Partial capture
09-20 18:53 80m -6 / - DO2HC - / -11 2 ✓ Closing fragment
09-20 18:53 80m -14 / -16 DO9BAU +8 / -12 5 ✓ Full exchange observed
09-20 18:51 80m - / - DA6WA -9 / - 9 Partial capture
09-20 18:50 80m -1 / - IQ4JO +10 / -10 4 ✓ Closing observed
09-20 18:45 80m -3 / - II4IANT - / - 5 Partial capture
09-20 18:39 80m 0 / - YU65AEC - / - 4 Partial capture
09-20 18:29 80m 0 / - R3RRC/P - / - 4 Partial capture
09-20 17:58 40m - / -14 3Z100PKP -8 / - 2 Partial capture
09-20 12:47 80m -16 / -8 HA7VC/P -10 / -1 8 ✓ Full exchange observed
09-20 12:35 40m -3 / - PD2TX - / -8 5 ✓ Closing fragment
09-20 12:30 40m -6 / - PD0BAR - / - 2 Partial capture
09-20 12:29 40m -2 / -1 DD1OO -11 / +1 7 ✓ Full exchange observed
09-20 12:28 40m -11 / - DJ2MS -16 / -1 4 ✓ Closing observed
09-06 06:56 40m -12 / - F4DIA -11 / -12 4 ✓ Closing observed
09-06 06:53 40m -12 / - F4DIA - / - 2 Partial capture
09-06 06:38 40m -6 / -13 PA0KGB -6 / -7 5 ✓ Full exchange observed
09-06 06:34 40m -12 / - KS4OT - / - 2 Partial capture
09-06 06:32 40m -10 / - Z62NS - / - 2 Partial capture
09-06 06:28 40m -9 / - MI0NWA - / -6 5 ✓ Closing fragment
09-05 20:25 40m -15 / +2 OZ7KJ/P +6 / -4 5 ✓ Full exchange observed
08-29 20:30 40m - / -6 PC2J +1 / - 3 ✓ Closing fragment
08-29 20:22 40m - / -10 F1PBZ -4 / - 3 ✓ Closing fragment
08-29 20:22 40m - / - LB1UK -8 / - 2 Partial capture
08-29 20:22 40m - / - PC2J -5 / - 5 Partial capture
07-05 16:33 40m - / 0 II3WWA -3 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
185400  -7 2572  DD1RO DA6WA JO30
185415  -9 1226  DO2HC DD1RO RR73
185445 -14 1226  DO9BAU DD1RO -12
185500  +6 2102  DD1RO DO9BAU R-16
185500 -11 2540  DD1RO DA6WA JO30
185530  +7 2102  DD1RO DO9BAU 73
185530 -12 2540  DD1RO DA6WA JO30 (x3)
190345  +2 1653  SN100PKP DD1RO JO71 (x2)
190745  +0 1214  II4IANT DD1RO JO71 (x2)
191115  +0 1214  <DL50IPARC> DD1RO JO71 (x2)
40m 
UTC    dB Audio  Message
122945 -11 1125  DD1RO DD1OO -01
123000  -8  929  PD0BAR DD1RO JO71
123015  -7 1125  DD1RO DD1OO -01
123030  -4  929  PD0BAR DD1RO JO71
123100  -3  929  DD1OO DD1RO R+01 (x2)
123145 -15 2033  DD1RO DD1OO RR73
123200  -2  929  DD1OO DD1RO 73
123530  -4  929  PD2TX DD1RO JO71 (x5)
175830 -13 2063  DD1RO 3Z100PKP -14 (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.

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