DK1AJ — 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: JO42

Receiver-side FT8 activity involving DK1AJ, decoded by SO8OO in southeastern Poland. 1,240 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 37 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-11-04.

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 1,240 FT8 messages attributed to DK1AJ as the transmitting token by decoded message structure across 37 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (80%), followed by 40 m (19%) and 10 m (1%). Most decodes (56%) fell within the six-hour window 08:00-14:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (68%); the estimated median was -5 dB.

Overview

1,240
Messages attributed
37
UTC dates decoded
123
Active 15-min windows
-5 dB
Estimated median S/N

Bands

First attributed message: 2026-06-08
Last attributed message: 2026-11-04 13:11 UTC

Observed FT8 message patterns

Attributed sample
1,240 messages
Active dates
37 UTC dates
Estimated median S/N
-5 dB
Estimated 10th-90th percentile
-14 to +6.8 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 76, moderate (-15 to -9 dB) 325, strong (≥ -8 dB) 839.

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 DK1AJ

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 · 784 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
934 km (approx.)
Last such locator decoded
2026-11-04 13:11 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 UTCBandDK1AJ S/NCounterpartCounterpart S/NMsgsCapture
11-04 13:11 10m -8 / - TN8GD - / -9 2 Partial capture
10-04 07:19 40m -1 / - W5XO - / - 4 Partial capture
10-04 07:16 40m 0 / - DK7UY 0 / -13 5 Partial capture
10-04 07:16 40m +2 / +2 DF1BN +6 / +2 6 ✓ Full exchange observed
10-04 07:13 40m +5 / +2 EW8AAC -15 / -16 6 ✓ Full exchange observed
09-23 06:59 40m +1 / - S55X - / - 2 Partial capture
09-23 06:58 40m +8 / - W4MAA - / -19 2 Partial capture
09-23 06:52 40m -11 / - W4MAA - / - 3 Partial capture
09-23 06:49 40m -4 / - ON4AEO - / - 4 Partial capture
09-17 07:27 40m 0 / 0 YO6RK +3 / -5 10 ✓ Full exchange observed
09-11 09:57 40m -1 / - OK3MB -12 / -7 4 ✓ Closing observed
09-11 09:51 40m -2 / 0 OZ6MM -12 / -9 5 ✓ Full exchange observed
09-11 09:48 40m 0 / +9 SP7ROM -14 / -4 7 ✓ Full exchange observed
09-11 09:47 40m +3 / -12 OZ9FF -12 / +6 5 ✓ Full exchange observed
09-11 09:44 40m +5 / - SANATATE - / +4 2 Partial capture
09-11 09:40 40m +4 / - TF8KW - / - 5 Partial capture
09-11 09:36 40m +4 / - R5BM/M - / +5 2 Partial capture
09-11 09:35 40m +6 / - HG0NPJ +11 / -2 3 ✓ Closing observed
09-11 09:30 40m -3 / - M3AUB - / -17 7 Partial capture
09-02 19:42 40m +3 / - RI1FJL - / - 7 Partial capture
08-30 12:18 20m +4 / - YO6LA - / -14 2 Partial capture
08-29 19:31 40m +13 / - <...> - / -1 5 Partial capture
08-29 18:08 20m 0 / - YO5QDN - / - 4 Partial capture
08-29 18:05 20m 0 / - K7ACZ - / - 3 Partial capture
08-29 18:03 20m 0 / - YO3RU - / -8 3 Partial capture
08-28 18:05 40m -3 / - YO4GIY -14 / - 5 ✓ Closing observed
08-22 19:48 20m +8 / - BU2FW - / - 4 Partial capture
08-22 19:42 20m -8 / - BV2NF - / - 4 Partial capture
08-22 18:00 20m +8 / -12 EX7CQ -15 / -9 9 ✓ Full exchange observed
08-21 07:13 40m -8 / - SQ9SZ - / - 5 Partial capture
08-21 07:11 40m 0 / - ZL4SY - / - 2 Partial capture
08-21 07:10 40m -11 / -10 ON4AOI -2 / -1 4 ✓ Full exchange observed
08-21 07:00 40m -6 / - OA4ENG - / - 2 Partial capture
08-21 06:57 40m -7 / - OO0O - / - 3 Partial capture
08-21 06:55 40m -3 / -1 OJ0JR -12 / +3 4 ✓ Full exchange observed
08-21 06:53 40m -3 / - OA4ENG - / - 4 Partial capture
08-20 15:00 20m +8 / +2 DL1R +5 / -1 31 Partial capture
08-18 10:22 10m -13 / - IW5CPQ - / -13 4 ✓ Closing fragment
08-17 19:02 20m - / - F4NKF -9 / - 2 Partial capture
08-17 18:57 20m - / - F6FDY -23 / - 2 Partial capture
08-17 18:24 20m +2 / - YO6POG - / +1 2 ✓ Closing fragment
08-17 18:18 20m -2 / - R2BKT - / -9 2 ✓ Closing fragment
08-17 18:17 20m -2 / - SP4MPH - / -8 2 ✓ Closing fragment
08-17 18:11 20m +4 / - RW4HB - / -11 4 ✓ Closing fragment
08-17 18:09 20m +6 / - LY2BVB - / -7 2 ✓ Closing fragment
08-17 18:05 20m +5 / - M7CPT - / -18 6 ✓ Closing fragment
08-17 18:04 20m +2 / - EA5QG - / -8 2 ✓ Closing fragment
08-17 18:00 20m -4 / - R4HHN - / -5 2 ✓ Closing fragment
08-17 17:56 20m +7 / +8 M0PBG +9 / +3 5 ✓ Full exchange observed
08-17 17:53 20m +2 / - RZ3Z/P - / -16 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

10m
UTC    dB Audio  Message
133630 -21 1096  DK1AJ GJ0KYZ RR73
102245 -14 1695  IW5CPQ DK1AJ JO42 (x4)
131115  -8 2635  TN8GD DK1AJ JO42 (x2)
40m
UTC    dB Audio  Message
071630  +3  389  DK1AJ DK7UY JO44
071630  +9 2442  DK1AJ DF1BN JN68
071645  +4 2542  DF1BN DK1AJ +02
071700  -2  389  DK1AJ DK7UY JO44
071700  +7 2442  DK1AJ DF1BN R+02
071715  -1 2542  DF1BN DK1AJ RR73
071730  +4 2442  DK1AJ DF1BN 73
071745  +5 2542  DK7UY DK1AJ -13 (x3)
071945  +1 2542  W5XO DK1AJ JO42 (x4)
072845  +3 2542  HI3LER DK1AJ JO42
20m
UTC    dB Audio  Message
180330  -3 2472  YO3RU DK1AJ JO42 (x2)
180445 -18 2343  DK1AJ BA3QIQ OM99
180500  -3 2472  K7ACZ DK1AJ JO42 (x3)
180800  +2 2472  YO5QDN DK1AJ JO42 (x4)
121300  +7 2684  CQ DK1AJ JO42                         a1
121400  +9 2528  YO7GQZ DK1AJ JO42
121500 +12 2528  YO6LA DK1AJ JO42 (x3)

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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