DA2DA — 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 DA2DA, decoded by SO8OO in southeastern Poland. 1,394 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 43 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-08.

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 1,394 FT8 messages attributed to DA2DA as the transmitting token by decoded message structure across 43 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (67%), followed by 80 m (11%) and 20 m (9%). Most decodes (55%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

1,394
Messages attributed
43
UTC dates decoded
168
Active 15-min windows
-9 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-10-08 19:50 UTC

Observed FT8 message patterns

Attributed sample
1,394 messages
Active dates
43 UTC dates
Estimated median S/N
-9 dB
Estimated 10th-90th percentile
-19 to 0 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 294, moderate (-15 to -9 dB) 463, strong (≥ -8 dB) 637.

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.

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 DA2DA

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 · 785 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,054 km (approx.)
Last such locator decoded
2026-10-08 19:50 UTC

Other locator fields attributed to this token: JN67 (13).

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 UTCBandDA2DA S/NCounterpartCounterpart S/NMsgsCapture
10-08 19:49 80m -12 / -3 F8ADF -15 / -9 3 ✓ Full exchange observed
10-08 18:07 40m -12 / -10 EU2NS -2 / -7 4 ✓ Full exchange observed
10-08 15:54 40m -13 / - J21NPX/R - / - 7 Partial capture
10-07 19:53 160m -20 / -14 SP1MGM 0 / -20 8 Partial capture
10-07 19:50 80m - / - DL1BQR +4 / - 6 Partial capture
10-07 19:50 80m -13 / -5 TF4M -20 / -11 4 ✓ Full exchange observed
10-07 19:49 80m -8 / +3 DO5OT +11 / - 4 ✓ Closing observed
10-07 19:48 80m - / -7 SM7TZK -6 / - 2 ✓ Closing fragment
10-07 19:44 60m -2 / - OM1AGE - / -4 2 ✓ Closing fragment
10-07 19:43 60m -2 / - HA3PG - / -3 2 ✓ Closing fragment
10-07 19:41 60m -4 / - OM8YZ - / -8 3 ✓ Closing fragment
10-07 19:38 60m -12 / - LB9ZG - / -6 2 Partial capture
10-07 19:12 40m -2 / - M7GOA - / -24 3 Partial capture
10-07 19:05 40m -8 / - H53BRQ - / - 9 Partial capture
10-07 18:56 40m -12 / - OK5AG/P - / -11 12 Partial capture
10-07 18:50 40m -13 / - TT1GD - / - 6 Partial capture
10-07 18:43 40m -6 / -10 OH9FTW -14 / -12 6 ✓ Full exchange observed
10-07 18:38 40m -12 / - VJ6X - / -24 9 ✓ Closing fragment
09-26 19:09 40m -13 / -20 U1BD -16 / -4 6 Partial capture
09-26 18:57 40m - / -21 UI6O -20 / - 2 ✓ Closing fragment
09-26 18:50 40m -2 / - UB6LLI - / -17 2 ✓ Closing fragment
09-26 18:44 40m -6 / - BG0HP - / -18 8 Partial capture
09-26 05:55 80m - / -8 SP5EXA +11 / - 3 ✓ Closing fragment
09-26 05:51 80m -18 / - KO3ZDE - / - 6 Partial capture
09-26 05:46 80m -19 / - K1QD - / - 9 Partial capture
09-26 05:44 80m -19 / -20 IK4TVP -11 / -11 7 ✓ Full exchange observed
09-26 05:43 80m -18 / -4 DL5DQZ -10 / -7 6 ✓ Full exchange observed
09-26 05:28 40m -7 / - W1KDA - / - 9 Partial capture
09-26 05:27 40m -10 / - UT5MB -14 / -6 3 ✓ Closing observed
09-26 05:25 40m -13 / - RV6F - / -20 3 Partial capture
09-26 05:23 40m -8 / - M9KCA - / -15 2 ✓ Closing fragment
09-26 05:22 40m -5 / - EA5D -23 / +8 3 ✓ Closing observed
09-25 19:42 80m - / - DL3RSK -12 / - 3 Partial capture
09-25 19:37 80m -6 / -12 F5PBG -12 / -5 3 ✓ Full exchange observed
09-25 19:35 80m -15 / -3 DJ6OI +17 / +5 5 ✓ Full exchange observed
09-25 19:34 80m -10 / - G0BPU - / -13 3 ✓ Closing fragment
09-25 19:30 60m - / - DL4YDR -10 / - 2 Partial capture
09-25 19:27 60m -7 / +2 OH5MNJ -9 / -3 5 ✓ Full exchange observed
09-25 19:27 60m -5 / -3 SP9UPH +2 / +4 6 ✓ Full exchange observed
09-25 19:26 60m -8 / - YL3NU -20 / -1 3 ✓ Closing observed
09-25 19:23 60m -8 / -5 IZ2ACM -3 / +6 6 ✓ Full exchange observed
09-25 19:22 60m - / - ON7KEI -6 / - 2 Partial capture
09-25 19:22 60m -10 / - DL1IP -17 / - 3 ✓ Closing observed
09-25 19:22 60m -10 / +7 EB1LA -10 / 0 6 ✓ Full exchange observed
09-25 19:19 60m -9 / +7 IK4CBO -10 / 0 5 ✓ Full exchange observed
09-25 19:19 60m -10 / - IV3DSG +6 / - 6 ✓ Full exchange observed
09-25 19:18 60m -10 / +5 F1PBZ -6 / -1 4 ✓ Full exchange observed
09-25 19:14 60m -9 / - F1IQH -8 / +4 6 Partial capture
09-25 19:14 60m -5 / -3 LZ2VQ -4 / -1 4 ✓ Full exchange observed
09-25 19:14 60m -10 / +9 SP3CUG -4 / +4 10 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
195100 -16 1606  DA2DA TF4M RR73
195100  -1 1393  DA2DA DL1BQR JO73 (x5)
194645 -15 1241  CQ DA2DA JO31
194715 -15 1240  ON3RV DA2DA R+01
194845 -10 1240  CQ DA2DA JO31
194915 -10 1241  F8ADF DA2DA -09
194930 -15 1241  DA2DA F8ADF R-03
194945 -13 1241  F8ADF DA2DA RR73
195015 -11 1241  CQ DA2DA JO31 (x2)
195200  -6 1368  DA2DA F1MLN IN99
40m
UTC    dB Audio  Message
191230  -1 1252  M7GOA DA2DA -24 (x2)
191330  -3 1252  CQ DA2DA JO31
191445 -16 1252  DA2DA R1DD KO59
155445  -9 1601  J21NPX/R DA2DA JO31 (x7)
180700 -14 1418  EU2NS DA2DA JO31
180815  -1  945  DA2DA EU2NS -10
180830 -10 1418  EU2NS DA2DA R-07
180845  -4  945  DA2DA EU2NS RR73
160m
UTC    dB Audio  Message
195315 -22 1582  CQ DA2DA JO31
195330  +3 1582  DA2DA SP1MGM JO73
195345 -22 1582  CQ DA2DA JO31
195400  +1 1582  DA2DA SP1MGM JO73
195415 -21 1582  CQ DA2DA JO31
195430  +4 1582  DA2DA SP1MGM JO73
195445 -20 1582  SP1MGM DA2DA -20
195500  -2 1582  DA2DA SP1MGM R-14
195515 -22 1581  SP1MGM DA2DA -20
195530  -4 1582  DA2DA SP1MGM R-14
195545 -19 1582  SP1MGM DA2DA -20
60m
UTC    dB Audio  Message
193000  -6 1301  CQ DA2DA JO31
193015  -7  873  DA2DA DL4YDR JO32 (x2)
193845 -10 1614  LB9ZG DA2DA JO31 (x2)
194115  -3 1614  CQ DA2DA JO31
194145  -3 1614  OM8YZ DA2DA -08 (x3)
194300 -16 1663  DA2DA F5PBG IN78
194315  -2 1614  HA3PG DA2DA R-03 (x2)
194415  -1 1614  OM1AGE DA2DA -04 (x2)
194515  -1 1614  CQ DA2DA JO31
20m
UTC    dB Audio  Message
153215 -15 1297  R1BGY DA2DA RR73
153245 -17 1297  CQ DA2DA JO31 (x2)
153630 -15 1296  DA2DA EA1DH R-19
154015 -15 1294  EX7DY DA2DA JO31 (x2)
154100  -9 1215  DA2DA EX7DY RR73
154115 -18 1294  EX7DY DA2DA 73
190615 -13 2625  BG7BVP DA2DA JO31
190715 -20 1845  IU3VQM DA2DA R-17 (x2)
191945  +1 1448  DA2DA EA8AT -13 (x2)
192530  -4 2258  DA2DA CN8NS -11
192600  +1 2258  DA2DA RR73; F5MAG <...> -06
10m
UTC    dB Audio  Message
094915 -19 1703  SP7ROM DA2DA RR73
094945 -12 1703  CQ DA2DA JO31 (x3)
095145 -11 1703  IK6GTF DA2DA -20 (x2)
103215 -21 1241  <...> DA2DA R-15
103415 -11 1248  OM3PC DA2DA JO31 (x8)

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.

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