DL5YCL — 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 DL5YCL, decoded by SO8OO in southeastern Poland. 277 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 31 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-09-17.

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 277 FT8 messages attributed to DL5YCL as the transmitting token by decoded message structure across 31 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (54%), followed by 20 m (29%) and 80 m (12%). Most decodes (57%) fell within the six-hour window 14:00-20:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

277
Messages attributed
31
UTC dates decoded
63
Active 15-min windows
-10 dB
Estimated median S/N

Bands

80m · 32 40m · 149 20m · 80 10m · 16
First attributed message: 2026-06-10
Last attributed message: 2026-09-17 16:30 UTC

Observed FT8 message patterns

Attributed sample
277 messages
Active dates
31 UTC dates
Estimated median S/N
-10 dB
Estimated 10th-90th percentile
-19 to -1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 61, moderate (-15 to -9 dB) 96, strong (≥ -8 dB) 120.

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.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with DL5YCL in decoded directed-looking exchanges:

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 DL5YCL

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 · 164 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,054 km (approx.)
Last such locator decoded
2026-09-17 16:30 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 UTCBandDL5YCL S/NCounterpartCounterpart S/NMsgsCapture
09-17 16:30 80m -10 / - VK1MA - / - 2 Partial capture
09-13 05:19 40m -5 / - NR5G - / - 2 Partial capture
09-13 05:05 40m -4 / - ZL2CA - / - 5 Partial capture
09-13 05:05 40m - / - UA4FKT -2 / - 4 Partial capture
09-13 05:04 40m 0 / - HI3K - / -19 3 ✓ Closing fragment
09-07 18:55 40m -5 / - M1DBW - / +9 3 ✓ Closing fragment
09-07 18:50 40m -9 / -3 OE3PBS +4 / -10 6 ✓ Full exchange observed
09-07 18:49 40m +2 / -11 EM90ZMV +6 / -14 3 Partial capture
09-07 18:46 40m +1 / - A61DD - / - 2 Partial capture
09-07 18:41 40m -4 / -8 UR5SG +8 / -6 8 ✓ Full exchange observed
09-06 18:50 40m -10 / -14 EX7CQ -3 / -8 5 ✓ Full exchange observed
09-05 16:12 40m -11 / - OE5YCP -24 / -18 5 ✓ Closing observed
09-05 16:07 40m -1 / - T77NC - / - 3 Partial capture
09-04 16:24 40m -8 / -5 DL2YBG +1 / -12 7 ✓ Full exchange observed
09-04 16:23 40m -2 / - MW0UPH - / -7 2 ✓ Closing fragment
09-04 16:04 40m -12 / - M6INJ -24 / - 2 ✓ Closing observed
09-04 16:03 40m -10 / 0 DL3BCU -9 / +7 10 ✓ Full exchange observed
09-04 15:55 40m -13 / - EX7CQ - / - 2 Partial capture
08-31 16:21 20m -1 / - RI1FJL - / -19 3 ✓ Closing fragment
08-31 16:03 20m -3 / - EA8BIA - / - 2 Partial capture
08-30 16:10 40m -12 / - DJ0MAB - / -2 2 ✓ Closing fragment
08-30 16:07 40m -7 / - OE9NET - / -15 2 Partial capture
08-29 20:42 80m - / - IU3ACL +4 / - 4 Partial capture
08-29 20:34 80m - / - IU3ACL +3 / - 11 Partial capture
08-29 20:32 80m -11 / -11 <...> +5 / -9 4 ✓ Closing fragment
08-29 17:16 40m -12 / -14 UR6HE -8 / -24 4 ✓ Full exchange observed
08-28 15:58 20m - / -20 RA8AF +7 / - 4 ✓ Closing fragment
08-24 19:03 40m -10 / - D2ACE - / - 2 Partial capture
08-24 19:00 40m +2 / - VJ6X - / - 2 Partial capture
08-23 16:00 40m -15 / - TK5NJ - / -13 3 ✓ Closing fragment
08-21 16:16 40m -2 / - R9DT - / - 3 Partial capture
08-21 15:51 10m -18 / - <...> - / - 2 Partial capture
08-20 17:24 40m -9 / - UR5WBO - / -14 2 ✓ Closing fragment
08-20 17:22 40m -12 / - UA3MRS/QRP - / - 3 Partial capture
08-20 17:16 40m -6 / - RA0WBI - / - 2 Partial capture
08-20 13:27 40m -18 / - HA1DSL -22 / -12 3 ✓ Closing observed
08-20 13:15 40m - / 0 DM5JBN -10 / - 3 ✓ Closing fragment
08-20 13:14 40m -20 / +9 SQ9SZ -17 / - 3 ✓ Closing observed
08-20 13:07 40m - / +8 HA7LAD -4 / - 4 ✓ Closing fragment
08-19 02:11 80m -10 / - WC4H - / - 2 Partial capture
08-11 04:21 40m -17 / - OA4ENG - / - 2 Partial capture
08-10 04:36 40m -24 / - 9Y4DG - / - 2 Partial capture
08-10 04:24 40m - / - US2YW -5 / - 2 Partial capture
08-10 04:22 40m -19 / - OA4ENG - / -9 3 ✓ Closing fragment
08-10 04:15 40m -8 / - OH0ERF - / -17 4 ✓ Closing fragment
08-10 04:11 40m -18 / - 9Y4DG - / -17 4 Partial capture
08-09 14:31 40m - / - SP9XG -16 / - 2 ✓ Closing fragment
08-09 14:16 40m -24 / -16 HG7PR -10 / -13 3 ✓ Full exchange observed
08-08 18:25 40m -15 / +9 DL7ACA -13 / - 4 ✓ Closing observed
08-08 18:23 40m -16 / -15 UB6OCP -14 / -10 7 ✓ 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
203530  +4 1963  DL5YCL IU3ACL JN65 (x13)
163015  -9 2295  VK1MA DL5YCL JO31 (x2)
40m 
UTC    dB Audio  Message
050500  -2  340  HI3K DL5YCL 73
050515  -2  341  DL5YCL UA4FKT LO23
050545  -5  839  ZL2CA DL5YCL JO31
050545  -4  341  DL5YCL UA4FKT LO23 (x2)
050645  -1  840  ZL2CA DL5YCL JO31
050645  +4  341  DL5YCL UA4FKT LO23
050745  -5  874  ZL2CA DL5YCL JO31 (x3)
051445  -4  977  KC0VTJ DL5YCL JO31
051930  -4  753  NR5G DL5YCL JO31 (x2)
052100  -1 1088  K8GIB DL5YCL JO31
052145 -13 2119  KG6PH DL5YCL JO31
20m 
UTC    dB Audio  Message
061900  -9  485  R8CGO DL5YCL JO31 (x3)
155845  +7  669  DL5YCL RA8AF -20 (x4)
160430 -14 1042  DL5YCL UA9QFF -18 (x2)
160200  -5 1752  K2AK DL5YCL JO31
160315  -3 1800  EA8BIA DL5YCL JO31 (x2)
162145  -5  526  RI1FJL DL5YCL JO31 (x3)
10m 
UTC    dB Audio  Message
174700  -4 1792  DL5YCL CN2DX -13
174715 -10 1787  CN2DX DL5YCL R-06
174730 -10 1793  DL5YCL CN2DX RR73
174745 -11 1787  CN2DX DL5YCL 73
142200  -8 1087  G0VXM DL5YCL JO31
142300  -8  937  G8KHF DL5YCL JO31 (x4)
144045 -17 2002  7Q3WS DL5YCL JO31
144800 -22 2162  <...> DL5YCL JO31 (x2)
140615 -14 1866  DL5YCL UR4QWW RR73
155115 -19 1557  <...> DL5YCL JO31 (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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