DD8AH — 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 DD8AH, decoded by SO8OO in southeastern Poland. 79 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 14 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-22.

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 79 FT8 messages attributed to DD8AH as the transmitting token by decoded message structure across 14 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (66%), followed by 40 m (34%). Most decodes (62%) 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 -15 dB.

Overview

79
Messages attributed
14
UTC dates decoded
28
Active 15-min windows
-15 dB
Estimated median S/N

Bands

40m · 27 20m · 52
First attributed message: 2026-06-08
Last attributed message: 2026-10-22 17:05 UTC

Observed FT8 message patterns

Attributed sample
79 messages
Active dates
14 UTC dates
Estimated median S/N
-15 dB
Estimated 10th-90th percentile
-22 to -8 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 39, moderate (-15 to -9 dB) 30, strong (≥ -8 dB) 10.

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 · 47 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,054 km (approx.)
Last such locator decoded
2026-10-22 17:05 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
11-01 17:19 40m - / -11 DD1OO -1 / - 4 ✓ Closing fragment
10-04 07:10 40m -17 / - M7WRI - / - 2 Partial capture
09-23 16:57 80m - / - DL1CC -3 / - 2 Partial capture
09-23 16:54 80m - / -7 DK7ZT -6 / - 4 Partial capture
09-23 16:53 80m - / -18 OE5DML -8 / - 4 Partial capture
09-20 17:30 40m -5 / - C31HS - / - 2 Partial capture
09-20 17:26 40m -10 / - F4HMP - / +1 2 Partial capture
09-20 17:10 40m -11 / - G6LTT - / +6 3 Partial capture
09-20 17:07 40m -9 / -7 HF100PKP -8 / - 2 Partial capture
09-20 17:06 40m - / - DL3IAK -6 / - 7 Partial capture
09-20 17:06 40m -6 / - ON1DGN - / - 2 ✓ Closing fragment
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

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
172730 -12 1651  DD8AH RR73; PA0RDT <...> -04
173030  -5 1643  C31HS DD8AH JO31 (x2)
070745 -17 1398  RO2E/P DD8AH JO31
071030 -13 1454  M7WRI DD8AH JO31 (x2)
071430 -19 1454  SP6FME DD8AH +08
071630 -19 1797  PF7DKW DD8AH JO31
164230 +14  539  DD8AH YO9PH -08
170515 -21 1715  EX7CQ DD8AH JO31
171800 -12 1665  DD8AH M7FSE -13
171900  +2 1666  DD8AH DD1OO JN49 (x4)
80m 
UTC    dB Audio  Message
165345  -5 1428  DD8AH OE5DML JN78 (x2)
165415 -12 1148  DD8AH DK7ZT -07
165445 -10 1428  DD8AH OE5DML R-18
165445  -7 1148  DD8AH DK7ZT -07
165515  -6 1427  DD8AH OE5DML R-25
165515  -7 1149  DD8AH DK7ZT -07 (x2)
165745  +0 1016  DD8AH DL1CC +12 (x2)
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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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