DO4DXA — 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: JN58

Receiver-side FT8 activity involving DO4DXA, decoded by SO8OO in southeastern Poland. 4,047 FT8 messages attributed to this token as transmitter, on 80m, 10m, across 7 UTC dates in the available aggregate history. Observed between 2026-08-21 and 2026-10-06.

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 4,047 FT8 messages attributed to DO4DXA as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (99%), followed by 10 m (1%). Most decodes (54%) fell within the six-hour window 22:00-04:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (99%); the estimated median was +9 dB.

Overview

4,047
Messages attributed
7
UTC dates decoded
204
Active 15-min windows
+9 dB
Estimated median S/N

Bands

First attributed message: 2026-08-21
Last attributed message: 2026-10-06 04:09 UTC

Observed FT8 message patterns

Attributed sample
4,047 messages
Active dates
7 UTC dates
Estimated median S/N
+9 dB
Estimated 10th-90th percentile
+1 to +15 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 41, strong (≥ -8 dB) 4,003.

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 DO4DXA

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
JN58 · 3,233 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
799 km (approx.)
Last such locator decoded
2026-10-06 04:08 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 UTCBandDO4DXA S/NCounterpartCounterpart S/NMsgsCapture
10-06 03:55 80m -5 / -21 TI2SD -15 / -18 13 ✓ Full exchange observed
10-06 03:48 80m -4 / - TI2SD - / - 9 Partial capture
10-06 03:46 80m -6 / - XE2X - / -19 4 ✓ Closing fragment
10-06 03:44 80m -2 / - K2PSD - / -13 3 ✓ Closing fragment
10-06 03:43 80m -2 / - DO1ID +1 / 0 4 ✓ Full exchange observed
10-06 03:35 80m -2 / -5 IZ5FSO -2 / -10 5 ✓ Full exchange observed
10-06 03:30 80m 0 / -8 SP5KG +3 / -1 5 ✓ Full exchange observed
10-06 03:29 80m +2 / - N3F - / - 2 Partial capture
10-06 03:24 80m -3 / - N3F - / - 5 Partial capture
10-06 03:17 80m -1 / - N3F - / - 10 Partial capture
10-06 03:14 80m -3 / - K3EDP - / -14 6 ✓ Closing fragment
10-06 03:05 80m -1 / - N3F - / - 12 Partial capture
10-06 03:00 80m +1 / - K3EDP - / +4 7 Partial capture
10-06 02:57 80m +8 / - 4X1YA - / - 5 Partial capture
10-06 02:50 80m +10 / - N6PSE - / - 10 Partial capture
10-06 02:48 80m +10 / - N3F - / - 5 Partial capture
10-06 02:45 80m +13 / - 4X1YA - / - 5 Partial capture
10-06 02:43 80m +6 / - N3F - / - 5 Partial capture
10-06 02:40 80m +4 / -14 KE4EB +3 / 0 9 ✓ Full exchange observed
10-06 02:34 80m +7 / - N3F - / - 12 Partial capture
10-06 02:31 80m +9 / -18 HI8L -23 / -10 3 Partial capture
10-06 02:27 80m +10 / - K1QD - / -19 7 ✓ Closing fragment
10-06 02:24 80m +13 / - WE0D - / - 5 Partial capture
10-06 02:21 80m +14 / - KA1MXL - / - 5 Partial capture
10-06 02:18 80m +10 / - HI3JCC - / - 5 Partial capture
10-06 02:17 80m +2 / - KI9DX - / -14 3 ✓ Closing fragment
10-06 02:12 80m +10 / - VE3OP - / - 5 Partial capture
10-06 02:09 80m +10 / - HI3R -17 / -13 5 ✓ Closing observed
10-06 02:01 80m +16 / - WB8SCG - / -16 7 ✓ Closing fragment
10-06 01:59 80m +19 / - HI3R - / - 5 Partial capture
10-06 01:56 80m +14 / - UN7CL - / - 5 Partial capture
10-06 01:53 80m +12 / -20 HI3R -12 / -14 7 Partial capture
10-06 01:45 80m +9 / - N3F - / - 15 Partial capture
10-06 01:42 80m +8 / - VA2JWZ - / - 5 Partial capture
10-06 01:40 80m +13 / - KA2OMQ - / -7 5 ✓ Closing fragment
10-06 01:37 80m +14 / - HI3JCC - / - 5 Partial capture
10-06 01:33 80m +11 / - N3F - / - 5 Partial capture
10-06 01:31 80m +11 / - WB2UBW - / - 5 Partial capture
10-06 01:28 80m +10 / - VE3XN - / - 5 Partial capture
10-06 01:19 80m +11 / - N3F - / - 15 Partial capture
10-06 01:16 80m +7 / - HI8JCD - / - 5 Partial capture
10-06 01:13 80m +12 / - N3GTY - / -20 7 ✓ Closing fragment
10-06 01:10 80m +14 / - WF7I - / -14 5 ✓ Closing fragment
10-06 01:08 80m +11 / - KD2WBX - / - 5 Partial capture
10-06 01:05 80m +12 / - N0YO - / - 5 Partial capture
10-06 01:03 80m +16 / +7 SP3HGD -14 / -1 4 ✓ Full exchange observed
10-06 01:00 80m +12 / - N3GTY - / - 5 Partial capture
10-06 00:56 80m +11 / - N9PGG - / -14 7 ✓ Closing fragment
10-06 00:53 80m +13 / - W2NTN - / - 5 Partial capture
10-06 00:51 80m +12 / - WI1U - / - 5 Partial capture

Recent FT8 messages decoded at SO8OO

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

10m
UTC    dB Audio  Message
151615  -1  604  DO9UWE DO4DXA RR73
151630 -11 1204  DO4DXA DO9UWE 73
151645  -1  604  SP8AOV DO4DXA JN58 (x3)
152330 -20 1444  DO4DXA DN9AD JO52 (x4)
161745  -2 2289  G0RVY DO4DXA JN58 (x3)
161915  +1 2289  F5SZY DO4DXA +01 (x2)
121600 -18 2154  DO4DXA CN8NS RR73
80m
UTC    dB Audio  Message
035915  -3  506  CQ DO4DXA JN58
035945  -9  506  TI2SD DO4DXA JN58 (x6)
040330  -3  506  CQ DO4DXA JN58 (x7)
040915  -6  506  TI2SD DO4DXA R-18
60m
UTC    dB Audio  Message
221330 -11 1884  DO4DXA DL3HN JN49
160m
UTC    dB Audio  Message
185745  -5 1226  DO4DXA SV3FUP -11

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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