DD8AH — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO31

Receiver-side FT8 activity involving DD8AH, decoded by SO8OO in southeastern Poland. 60 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 11 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-14.

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 60 FT8 messages attributed to DD8AH as the transmitting token by decoded message structure across 11 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (87%), followed by 40 m (13%). Most decodes (58%) fell within the six-hour window 12:00-18:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.

Overview

60
Messages attributed
11
UTC dates decoded
22
Active 15-min windows
-16 dB
Estimated median S/N

Bands

40m · 8 20m · 52
First attributed message: 2026-06-08
Last attributed message: 2026-09-14 17:53 UTC

Observed FT8 message patterns

Attributed sample
60 messages
Active dates
11 UTC dates
Estimated median S/N
-16 dB
Estimated 10th-90th percentile
-23 to -9 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 34, moderate (-15 to -9 dB) 22, strong (≥ -8 dB) 4.

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 DD8AH 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 DD8AH

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 · 33 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,054 km (approx.)
Last such locator decoded
2026-09-14 15:51 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 UTCBandDD8AH S/NCounterpartCounterpart S/NMsgsCapture
09-14 17:39 40m - / -9 F6DKQ +2 / - 3 ✓ Closing fragment
09-14 17:31 40m -19 / -5 DL7ACA -3 / +3 3 Partial capture
09-14 17:25 40m - / -17 PD1RGW -12 / - 6 ✓ Closing fragment
09-14 16:02 40m -18 / - DL1NB - / +9 2 ✓ Closing fragment
09-14 16:00 40m - / -4 PA1JH -9 / - 2 ✓ Closing fragment
09-14 15:51 40m -16 / - PD4JOH - / -5 2 Partial capture
08-30 09:34 20m - / -5 F6HUK -5 / - 7 Partial capture
08-30 09:32 20m -18 / -12 LZ6C -3 / -8 5 ✓ Full exchange observed
08-28 06:40 20m -15 / - G4YLJ - / -15 3 ✓ Closing fragment
08-28 06:32 20m - / -8 F1PSX -10 / - 3 ✓ Closing fragment
08-28 06:20 20m -10 / - SP7FID - / +7 3 ✓ Closing fragment
08-28 06:16 20m -12 / - HB9EKJ - / -3 3 ✓ Closing fragment
08-27 17:48 20m -15 / - EA5HND - / -17 3 ✓ Closing fragment
08-27 17:37 40m - / - DG6ITP +4 / - 2 Partial capture
08-21 15:24 20m -24 / -19 EB1DJ -7 / - 6 ✓ Closing observed
08-09 08:08 20m - / -17 IK2VFR -14 / - 4 Partial capture
07-24 14:24 20m - / -16 HA1BF -11 / - 2 ✓ Closing fragment
07-24 14:22 20m - / -4 DL1FLW -13 / - 5 Partial capture
07-24 14:12 20m - / -11 F1ODM -16 / - 2 Partial capture
07-24 14:08 20m -17 / -4 F4HSB -19 / +2 2 Partial capture
07-24 14:07 20m -20 / +5 ON3MOH/P -20 / - 3 ✓ Closing observed
07-22 12:58 20m -23 / - M7JVH - / - 2 Partial capture
07-22 12:26 20m -20 / - M0MLS - / +5 2 Partial capture
07-22 12:11 20m -21 / -16 RN9N -22 / -5 4 ✓ Full exchange observed
07-22 12:08 20m -22 / - RV6HE - / -6 3 Partial capture
06-24 06:51 20m -22 / - R1BED - / - 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
172500 -11 1762  DD8AH PD1RGW -17 (x6)
173145  -3 1595  DD8AH DL7ACA JO40
173200 -19 1594  DL7ACA DD8AH +03
173215  -3 1595  DD8AH DL7ACA R-05
173315  +1 1160  DD8AH PA2RO JO22
173900  +1 1658  DD8AH F6DKQ -09 (x3)
174200 -16 1347  G3YPP/P DD8AH 73
175300  -8 1788  US2YW DD8AH +07
20m 
UTC    dB Audio  Message
064015 -16 1297  G4YLJ DD8AH JO31 (x3)
093230 -21 1417  LZ6C DD8AH JO31
093245  -2 1417  DD8AH LZ6C -12
093300 -19 1416  LZ6C DD8AH R-08
093315  -4 1417  DD8AH LZ6C RR73
093330 -15 1416  LZ6C DD8AH 73
093445  -5 1856  DD8AH F6HUK -05 (x7)

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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