DL3YAR — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JN57

Receiver-side FT8 activity involving DL3YAR, decoded by SO8OO in southeastern Poland. 481 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 59 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-08-31.

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 481 FT8 messages attributed to DL3YAR as the transmitting token by decoded message structure across 59 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (99%), followed by 10 m (1%). Most decodes (71%) fell within the six-hour window 11:00-17:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -17 dB.

Overview

481
Messages attributed
59
UTC dates decoded
205
Active 15-min windows
-17 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-08-31 11:27 UTC

Observed FT8 message patterns

Attributed sample
481 messages
Active dates
59 UTC dates
Estimated median S/N
-17 dB
Estimated 10th-90th percentile
-23 to -10 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 280, moderate (-15 to -9 dB) 174, strong (≥ -8 dB) 27.

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 DL3YAR

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
JN57 · 398 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
836 km (approx.)
Last such locator decoded
2026-08-31 11:26 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 UTCBandDL3YAR S/NCounterpartCounterpart S/NMsgsCapture
10-04 14:11 10m - / -13 CR7BUJ -18 / - 2 ✓ Closing fragment
08-31 11:26 20m -8 / -14 LA2GCA -5 / -8 4 ✓ Full exchange observed
08-31 11:22 20m -16 / -24 LA8OOA -8 / -19 7 ✓ Full exchange observed
08-29 16:48 20m -16 / - UF4S - / - 2 Partial capture
08-29 16:44 20m -15 / - EA1FUY - / -11 3 ✓ Closing fragment
08-29 16:39 20m -12 / - UF4S - / - 7 Partial capture
08-27 13:55 20m - / - PD1DRE +12 / - 2 ✓ Closing fragment
08-22 17:34 20m -12 / - BG7BVI - / - 4 Partial capture
08-22 16:35 20m -10 / - BG7ZHS - / - 2 Partial capture
08-22 15:56 20m - / -20 R9FDM -9 / - 2 ✓ Closing fragment
08-21 11:10 10m - / -7 E75W -6 / - 2 ✓ Closing fragment
08-20 17:15 20m -19 / - IS0KNG - / - 4 Partial capture
08-20 12:58 20m -16 / - UA3WDO - / -9 2 ✓ Closing fragment
08-20 11:14 20m -12 / - 9A4AA - / - 2 ✓ Closing fragment
08-20 10:36 10m - / -10 SV1CQN -10 / - 2 ✓ Closing fragment
08-19 13:22 10m - / -19 IW8XLD -6 / - 5 Partial capture
08-18 11:29 20m -12 / - UZ5DM - / +4 2 Partial capture
08-17 17:36 20m - / -20 SV1EAG -10 / - 6 Partial capture
08-16 13:37 20m -14 / - RA9CUU - / - 3 Partial capture
08-16 10:51 20m - / -10 OK1HWS -10 / - 2 ✓ Closing fragment
08-16 10:45 20m - / -21 RA3Y -13 / - 4 Partial capture
08-15 16:33 20m - / -14 EA8AT -11 / - 2 ✓ Closing fragment
08-14 14:18 20m -15 / - R2ZDO - / - 2 Partial capture
08-14 14:15 20m -20 / - RC3LD - / - 3 Partial capture
08-14 14:10 20m -9 / - RN3YN - / - 2 Partial capture
08-11 15:07 20m - / -2 E74K -13 / - 2 ✓ Closing fragment
08-11 14:22 20m -22 / - YB1KXV - / - 4 Partial capture
08-11 12:37 20m - / -21 RY2B -23 / - 3 Partial capture
08-11 10:42 20m - / -3 9A3PV -12 / - 3 ✓ Closing fragment
08-10 14:42 20m -20 / -13 R9FE 0 / - 3 ✓ Closing observed
08-10 14:02 20m - / -12 RL6MT -11 / - 2 ✓ Closing fragment
08-10 12:08 20m -18 / - R3NCG - / -18 5 Partial capture
08-10 08:17 20m -20 / - F5SFT - / - 2 Partial capture
08-07 15:45 20m -18 / - 9M2HUS - / - 3 Partial capture
08-07 15:32 20m -13 / - RA9J - / - 4 Partial capture
08-07 15:24 20m -18 / - UA9QFF - / - 5 Partial capture
08-07 15:17 20m -14 / - RA9J - / - 3 Partial capture
08-04 14:20 20m -12 / - RA9J - / - 3 Partial capture
08-03 14:05 20m -12 / - RA9LL - / - 2 Partial capture
08-03 13:57 20m - / -8 RC5F -18 / - 2 ✓ Closing fragment
08-03 13:11 20m -23 / - RW4COM - / - 2 Partial capture
08-03 12:28 20m -9 / - RA9LL - / - 2 Partial capture
08-03 12:22 20m -23 / - UN8DSW - / - 3 Partial capture
08-02 13:51 20m - / -13 SV1TRJ -20 / - 2 ✓ Closing fragment
08-02 12:06 20m - / -18 R6OJ -4 / - 3 ✓ Closing fragment
08-02 11:56 20m - / -19 RC2N -18 / - 2 ✓ Closing fragment
08-02 11:48 20m - / -18 RA3Y -4 / - 2 ✓ Closing fragment
08-01 13:28 20m -16 / - RD7LC - / - 2 Partial capture
07-31 14:17 20m - / -10 SA3SHN -6 / - 4 ✓ Closing fragment
07-30 10:07 20m -24 / -12 RW4YD -20 / - 3 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

10m
UTC    dB Audio  Message
132400  -8 1051  DL3YAR IW8XLD -19
142145 -21 1921  F4BNZ DL3YAR JN57
142915 -24 1927  CQ DL3YAR JN57 (x4)
143415 -18 2387  F6IJT DL3YAR JN57
100230 -14 1988  DL3YAR SV1CQN -08 (x3)
111015  -5 2331  DL3YAR E75W -07 (x2)
112015 -14 2620  R7RAG DL3YAR JN57
141145 -19 1195  DL3YAR CR7BUJ -13 (x2)
20m
UTC    dB Audio  Message
164745 -19 2040  BG7BVI DL3YAR JN57
164815 -15  949  UF4S DL3YAR JN57 (x2)
092915  -9  809  EC5M DL3YAR JN57
112200 -18 1494  LA8OOA DL3YAR JN57 (x2)
112245  -4 1494  DL3YAR LA8OOA -24
112300 -16 1494  LA8OOA DL3YAR R-19 (x2)
112345 -13 1494  DL3YAR LA8OOA RR73
112400 -16 1494  LA8OOA DL3YAR 73
112630  -5  959  LA2GCA DL3YAR JN57
112645  -1  959  DL3YAR LA2GCA -14
112700 -11  959  LA2GCA DL3YAR R-08
112715  -9  959  DL3YAR LA2GCA RR73

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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