DL5ALF — 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: JN48

Receiver-side FT8 activity involving DL5ALF, decoded by SO8OO in southeastern Poland. 282 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, 10m, across 19 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-05.

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 282 FT8 messages attributed to DL5ALF as the transmitting token by decoded message structure across 19 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (38%), followed by 20 m (30%) and 40 m (25%). Most decodes (75%) fell within the six-hour window 05:00-11:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10.2 dB.

Overview

282
Messages attributed
19
UTC dates decoded
61
Active 15-min windows
-10.2 dB
Estimated median S/N

Bands

60m · 20 40m · 70 20m · 86 10m · 106
First attributed message: 2026-06-07
Last attributed message: 2026-10-05 19:38 UTC

Observed FT8 message patterns

Attributed sample
282 messages
Active dates
19 UTC dates
Estimated median S/N
-10.2 dB
Estimated 10th-90th percentile
-17 to -5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 35, moderate (-15 to -9 dB) 163, strong (≥ -8 dB) 84.

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 DL5ALF 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 DL5ALF

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
JN48 · 215 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
941 km (approx.)
Last such locator decoded
2026-10-05 19:37 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 UTCBandDL5ALF S/NCounterpartCounterpart S/NMsgsCapture
10-05 19:35 40m -13 / - PD4RJ - / -8 6 Partial capture
10-05 19:30 40m -9 / -15 LX1RFJ -10 / 0 5 ✓ Full exchange observed
10-05 19:19 40m -12 / - M6DPS - / -12 3 ✓ Closing fragment
09-30 04:49 40m -11 / - LX1TI - / - 5 Partial capture
09-23 07:27 40m -4 / -11 YO2UKG +14 / -13 5 ✓ Full exchange observed
09-18 05:17 40m -2 / - TI5RR - / - 2 Partial capture
09-16 04:34 40m - / -6 HK3TY -10 / - 2 Partial capture
09-15 04:53 40m - / - LZ2VQ -3 / - 3 Partial capture
09-15 04:52 40m -8 / - SO100PKP - / -13 2 Partial capture
09-04 05:34 40m -10 / - VE9LS - / - 7 Partial capture
09-04 05:33 40m -8 / - NC6I - / - 2 Partial capture
09-04 05:23 40m -16 / - HK3YL - / - 7 Partial capture
09-04 05:21 40m -20 / - NC6I - / - 2 Partial capture
09-04 05:17 40m -13 / - HK3YL - / - 4 Partial capture
09-04 05:11 40m -9 / - OA4ENG - / -8 6 ✓ Closing fragment
09-04 04:49 40m -11 / - YV6BXN - / - 2 Partial capture
09-04 04:44 40m -12 / - WA2HIP - / - 2 Partial capture
09-04 04:04 40m - / -16 CR7BRV -2 / - 3 ✓ Closing fragment
08-31 19:30 60m -14 / -4 OE6HLF -4 / -4 4 ✓ Full exchange observed
08-31 19:26 60m - / - 9A4ZM -5 / - 2 Partial capture
08-31 19:25 60m -14 / -9 HA7TM +12 / +5 5 ✓ Full exchange observed
08-31 19:22 60m -9 / - LY2HM - / - 5 Partial capture
08-31 19:21 60m - / -9 SP5MXZ +11 / - 7 Partial capture
08-31 19:20 60m -9 / -8 OM5JG 0 / -1 5 ✓ Full exchange observed
08-31 19:20 60m - / - ON7GB +6 / - 2 Partial capture
08-31 19:19 60m -8 / -6 CT7AIU -11 / -2 5 ✓ Full exchange observed
08-31 19:16 60m - / - ON7GB -2 / - 3 Partial capture
08-31 19:15 60m - / - IK4CBO -6 / - 2 Partial capture
08-31 19:13 60m -10 / -4 SM5ACQ -11 / -7 5 ✓ Full exchange observed
08-31 17:32 20m - / - EA5IXH -12 / - 2 Partial capture
08-31 17:31 20m -16 / - UN3P -8 / - 3 ✓ Closing observed
08-31 17:24 20m -13 / - KB1EFS - / - 2 Partial capture
08-30 09:35 20m -6 / - <...> - / - 7 Partial capture
08-30 09:29 20m -11 / - C31VM - / - 5 Partial capture
08-30 09:25 20m - / -7 R6OP +15 / - 3 ✓ Closing fragment
08-30 08:53 20m -10 / - OH3DJP - / - 3 Partial capture
08-30 08:42 20m -11 / -13 UA3LRN -12 / -14 5 ✓ Full exchange observed
08-30 06:02 20m - / -11 LZ6C -7 / - 3 ✓ Closing fragment
08-29 10:14 20m -18 / - HA1BF - / +3 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
045200  -5  812  LX1TI DL5ALF JN48
191915 -14 1784  M6DPS DL5ALF JN48 (x3)
193000  -8 1785  LX1RFJ DL5ALF JN48
193015 -11 1893  DL5ALF LX1RFJ -15
193030 -10 1785  LX1RFJ DL5ALF R+00
193045  -8 1893  DL5ALF LX1RFJ RR73
193100 -10 1785  LX1RFJ DL5ALF 73
193545 -13 1785  PD4RJ DL5ALF JN48 (x6)
60m 
UTC    dB Audio  Message
192345 +12  993  DL5ALF SP5MXZ -09
192400  -7 2313  LY2HM DL5ALF JN48
192415 +12  993  DL5ALF SP5MXZ -09 (x2)
192530 -13 1944  HA7TM DL5ALF JN48
192545 +11 2025  DL5ALF HA7TM -09
192600 -15 1944  HA7TM DL5ALF R+05
192615 +12 2025  DL5ALF HA7TM RR73
192630 -14 1944  HA7TM DL5ALF 73
192645  -5 1940  DL5ALF 9A4ZM JN86 (x2)
193000  -2 1402  DL5ALF OE6HLF -04
193015 -14 1355  OE6HLF DL5ALF R-04
193030  -6 1418  DL5ALF OE6HLF RR73
193045 -13 1355  OE6HLF DL5ALF 73
20m 
UTC    dB Audio  Message
093545  -7  548  <...> DL5ALF JN48 (x7)
094200 -13  600  DL5ALF RR73; TA4SSK <...> -14
172415 -12 1722  KB1EFS DL5ALF JN48 (x2)
173100 -18 2013  UN3P DL5ALF JN48 (x2)
173215  -8 2084  DL5ALF UN3P RR73
173245 -10  797  DL5ALF EA5IXH IM98 (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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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