DJ3HW — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO42

Receiver-side FT8 activity involving DJ3HW, decoded by SO8OO in southeastern Poland. 6,881 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 44 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-11.

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 6,881 FT8 messages attributed to DJ3HW as the transmitting token by decoded message structure across 44 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (39%), followed by 40 m (29%) and 80 m (20%). The busiest six-hour window was 15:00-21:00 UTC, containing 36% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (72%); the estimated median was -3 dB.

Overview

6,881
Messages attributed
44
UTC dates decoded
421
Active 15-min windows
-3 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-09-11 20:11 UTC

Observed FT8 message patterns

Attributed sample
6,881 messages
Active dates
44 UTC dates
Estimated median S/N
-3 dB
Estimated 10th-90th percentile
-15 to +7.7 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 597, moderate (-15 to -9 dB) 1,306, strong (≥ -8 dB) 4,978.

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 DJ3HW

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
JO42 · 2,715 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
934 km (approx.)
Last such locator decoded
2026-09-11 20:11 UTC

Other locator fields attributed to this token: JO30 (2,030).

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 UTCBandDJ3HW S/NCounterpartCounterpart S/NMsgsCapture
09-11 20:10 80m +6 / - ON6AA - / - 3 Partial capture
09-11 20:07 80m +10 / -11 OE5ABL +3 / +4 3 ✓ Full exchange observed
09-11 20:05 80m +8 / - IU1HGN - / -25 2 ✓ Closing fragment
09-11 20:03 80m +8 / - DO3BOX -12 / +7 5 ✓ Full exchange observed
09-11 20:02 40m - / - S57CT -2 / - 2 Partial capture
09-11 20:01 40m - / - PD1AQL -10 / - 2 Partial capture
09-11 19:54 40m +4 / - IU1VQG - / - 13 Partial capture
09-11 19:51 40m +2 / - IU2VUZ - / -3 2 ✓ Closing fragment
09-11 19:49 40m -1 / -1 F4NFM -10 / +3 5 ✓ Full exchange observed
09-11 19:47 40m 0 / +4 2E0UMK -15 / +3 4 ✓ Full exchange observed
09-11 19:42 40m +2 / - HF5A -12 / +10 4 ✓ Closing observed
09-11 19:38 40m +6 / -9 OE8DDX +12 / - 4 ✓ Full exchange observed
09-11 19:33 40m +8 / -8 OZ6TL -2 / -14 7 ✓ Full exchange observed
09-11 19:31 40m -2 / - M7OHG - / -6 2 ✓ Closing fragment
09-11 19:27 40m -1 / - YO3FRI +13 / - 4 ✓ Closing observed
09-11 19:22 40m - / -6 LA/DM2RM +8 / - 2 Partial capture
09-11 19:22 40m +1 / - TA1/TF1OL - / +1 2 Partial capture
09-11 19:21 40m -2 / - SP5DUJ - / -14 3 Partial capture
09-11 19:18 40m +3 / -3 R5AV -4 / +1 3 ✓ Full exchange observed
09-11 19:16 40m +4 / -11 RA6OF -10 / -2 3 ✓ Full exchange observed
09-11 19:14 40m +2 / - LY2BSW - / +5 2 ✓ Closing fragment
09-11 19:10 40m -1 / - UN7PPV - / -12 3 ✓ Closing fragment
09-11 19:09 40m +4 / - JH6MNB - / -14 2 ✓ Closing fragment
09-11 19:07 40m +2 / - DK1ZB - / +2 2 ✓ Closing fragment
09-11 19:05 40m +4 / - UA3GJM - / +3 2 ✓ Closing fragment
09-11 19:02 40m +5 / - D44TWO - / -12 4 ✓ Closing fragment
09-11 19:00 40m 0 / -11 SP1ZMO -3 / +6 5 ✓ Full exchange observed
09-11 18:59 40m -1 / -3 F1IQH -8 / +5 5 ✓ Full exchange observed
09-11 18:57 40m +2 / - WB8YJF/4 - / -15 2 Partial capture
09-11 18:54 40m +2 / - DL9PRE - / - 6 Partial capture
09-11 18:53 40m - / - UX7QG -8 / - 6 Partial capture
09-11 18:51 40m 0 / - DK5EO - / +2 2 ✓ Closing fragment
09-11 18:49 40m +2 / +5 F1PBZ -2 / - 4 ✓ Full exchange observed
09-11 18:46 40m +4 / - YU4FQN -16 / -14 5 ✓ Closing observed
09-11 18:45 40m +4 / - DL1EDR - / - 3 Partial capture
09-11 18:40 80m -5 / - DO4FBI -14 / - 2 ✓ Closing observed
09-11 18:37 80m -3 / - GX4RAF/P - / -11 3 Partial capture
09-11 18:36 80m -2 / -2 DO1YFF -5 / - 5 ✓ Closing observed
09-11 18:33 80m -2 / -16 RC2Y 0 / +2 5 ✓ Full exchange observed
09-11 18:31 80m -3 / +10 DO2HC 0 / - 6 ✓ Full exchange observed
09-11 18:28 80m +4 / - PA8DC -8 / +2 5 ✓ Full exchange observed
09-11 18:27 80m +2 / - R4PEP - / -19 2 ✓ Closing fragment
09-11 18:25 80m +8 / - RX3VF - / -5 2 ✓ Closing fragment
09-11 18:22 80m +1 / - DG4BBK - / -10 2 ✓ Closing fragment
09-11 18:20 80m +8 / -5 SP7SZJ +13 / +3 5 ✓ Full exchange observed
09-11 18:19 80m +6 / +2 F4HON -14 / -2 4 ✓ Full exchange observed
09-11 18:10 80m +2 / +3 DG5MLA +4 / - 5 ✓ Full exchange observed
09-11 18:08 80m +1 / -1 DO2XB +8 / +3 5 ✓ Full exchange observed
09-11 18:06 80m - / - DO1ID +11 / - 2 ✓ Closing fragment
09-11 18:03 80m +9 / - ZS6WAB - / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

10m
UTC    dB Audio  Message
120400  -2  873  CQ DJ3HW JO30 (x3)
120530  -3  873  SQ9DJQ DJ3HW JO30 (x2)
120745 -14  873  CQ DJ3HW JO30 (x4)
121345 -14  873  LZ2HY DJ3HW -19 (x3)
121715 -10  873  CQ DJ3HW JO30
121745  -5  873  SQ8SV DJ3HW JO30
123130 -18 2388  DJ3HW 5Z4VJ RR73
80m
UTC    dB Audio  Message
200445  +6  827  CQ DJ3HW JO42
200515  +9  827  IU1HGN DJ3HW -25 (x2)
200615  +7  827  CQ DJ3HW JO42 (x2)
200700  +2  827  DJ3HW OE5ABL -11
200715 +10  827  OE5ABL DJ3HW R+04
200730  +4  827  DJ3HW OE5ABL RR73
200845  +4  827  CQ DJ3HW JO42 (x4)
201045  +7  827  ON6AA DJ3HW JO42 (x3)
40m
UTC    dB Audio  Message
195645  +2  863  IU1VQG DJ3HW JO42 (x9)
200100  -1  863  CQ DJ3HW JO42
200115 -13 2238  DJ3HW PD1AQL JO22
200130  +2  863  CQ DJ3HW JO42
200145  -7 2238  DJ3HW PD1AQL JO22
200215  -2  863  DJ3HW S57CT JN76 (x2)
20m
UTC    dB Audio  Message
120400  +5  944  CQ DJ3HW JO42 (x2)
120500 +16  944  I/DG5MG/P DJ3HW +04
120600  +7  944  CQ DJ3HW JO42 (x5)
120830  +8  944  YO6LM DJ3HW JO42 (x3)
120945  +4  945  CQ DJ3HW JO42 (x4)
160m
UTC    dB Audio  Message
211200 -10 1427  <...> DJ3HW JO42 (x2)
211330  -9 1427  CQ DJ3HW JO42 (x3)
211445  -6 1772  DJ3HW SQ2PHC JO94 (x3)
211630 -12 1427  CQ DJ3HW JO42 (x5)
211915 +12 1497  DJ3HW OM2WQ JN88 (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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