DL1SMA — 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 DL1SMA, decoded by SO8OO in southeastern Poland. 288 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 21 UTC dates in the available aggregate history. Observed between 2026-06-24 and 2026-10-23.

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 288 FT8 messages attributed to DL1SMA as the transmitting token by decoded message structure across 21 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (51%), followed by 80 m (40%) and 10 m (4%). Most decodes (63%) fell within the six-hour window 03:00-09:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (86%); the estimated median was +3 dB.

Overview

288
Messages attributed
21
UTC dates decoded
44
Active 15-min windows
+3 dB
Estimated median S/N

Bands

First attributed message: 2026-06-24
Last attributed message: 2026-10-23 03:21 UTC

Observed FT8 message patterns

Attributed sample
288 messages
Active dates
21 UTC dates
Estimated median S/N
+3 dB
Estimated 10th-90th percentile
-11 to +14 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 28, strong (≥ -8 dB) 248.

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 DL1SMA

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 · 198 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
941 km (approx.)
Last such locator decoded
2026-10-23 03:21 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 UTCBandDL1SMA S/NCounterpartCounterpart S/NMsgsCapture
10-23 03:20 80m -4 / - YU65AEC - / - 2 Partial capture
10-23 00:32 80m - / - EB3JT -2 / - 4 Partial capture
10-23 00:31 80m - / - CT2HEX -8 / - 4 Partial capture
10-23 00:31 80m - / - DK8HC +7 / - 4 Partial capture
10-23 00:29 80m +13 / - EX7DY - / -7 3 ✓ Closing fragment
10-22 04:42 80m +13 / - KH6M - / - 4 Partial capture
10-22 04:38 80m +8 / - AA7A - / - 5 Partial capture
10-22 04:35 80m +10 / - N1WI - / -15 3 ✓ Closing fragment
10-22 04:33 80m +8 / - N2NW - / - 2 Partial capture
10-22 04:30 80m +12 / - KH6M - / - 3 Partial capture
10-21 19:26 80m +2 / - OD5ZZ -11 / -12 4 ✓ Closing observed
10-21 19:22 80m +2 / - OD5ZZ - / - 3 Partial capture
10-21 19:20 80m - / - DL7ACN -8 / - 2 Partial capture
10-21 19:17 80m +11 / - VK3AMP - / - 5 Partial capture
10-21 19:14 80m - / - OK2UPG +14 / - 4 Partial capture
10-21 19:11 80m +9 / - EX8BT - / - 8 Partial capture
10-21 04:58 80m +15 / - WZ4K - / - 10 Partial capture
10-21 04:56 80m +15 / - KD4EBL - / -18 3 ✓ Closing fragment
10-21 04:38 80m +6 / - WZ4K - / - 2 Partial capture
10-21 04:34 80m +6 / - EA8DIB - / -13 8 ✓ Closing fragment
10-21 04:33 80m +10 / - VE3BNW - / - 2 Partial capture
10-21 04:14 80m +10 / - N4BWW - / - 3 Partial capture
10-21 04:12 80m - / - 9A4ZM +16 / - 2 Partial capture
10-21 04:11 80m +10 / - K0KT - / -23 3 ✓ Closing fragment
10-21 04:07 80m +15 / - K4XP - / -5 5 ✓ Closing fragment
10-21 04:06 80m +10 / - W5UHQ - / - 2 Partial capture
10-21 03:28 80m - / - 9A4ZM +16 / - 2 Partial capture
10-21 03:26 80m +2 / - AA2C - / -13 3 ✓ Closing fragment
10-21 03:24 80m +5 / - VE2LBI - / -15 4 ✓ Closing fragment
10-18 05:52 80m +2 / - NQ9N - / -16 7 ✓ Closing fragment
10-18 05:50 80m -6 / - PY2WC - / - 2 Partial capture
10-18 05:48 80m 0 / - W5THT - / - 2 Partial capture
10-18 05:47 80m - / - IZ2EWN -7 / - 7 Partial capture
10-18 05:45 80m - / - SP5EXA +21 / - 5 Partial capture
10-18 05:44 80m +2 / - K8OCN - / -18 5 ✓ Closing fragment
10-18 05:44 80m -2 / - W5THT - / - 2 Partial capture
10-18 05:42 80m -2 / - XE1PM - / - 2 Partial capture
10-18 05:27 80m -6 / -12 NA5C -10 / - 4 ✓ Closing observed
10-17 18:08 40m +12 / - VU3OSA - / - 3 Partial capture
10-17 18:06 40m +14 / - BG4UCZ - / - 3 Partial capture
10-17 18:01 40m +4 / -7 EX7CQ -15 / -1 5 ✓ Full exchange observed
09-18 21:26 160m -9 / - RI1FJZ - / -16 7 Partial capture
08-31 09:06 20m -2 / - PY8WW - / - 3 Partial capture
08-31 08:03 20m -1 / - EP2AES - / - 3 Partial capture
08-30 07:05 20m -8 / - VK3FWR - / - 6 Partial capture
08-29 07:03 20m +5 / - VK2AJB - / - 4 Partial capture
08-29 06:57 20m +10 / - VK2GQR - / - 2 Partial capture
08-29 06:55 20m +10 / -8 VK3EVE -14 / -11 14 ✓ Full exchange observed
08-29 06:51 20m +12 / - VK2GQR - / - 4 Partial capture
08-29 06:46 20m +7 / - VK3EVE - / - 8 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
003100  +9  565  DL1SMA DK8HC JO42
003100  -9 1433  DL1SMA CT2HEX IM58
003130 +21  913  DL1SMA YO4NF +00
003130  +4  565  DL1SMA DK8HC JO42
003130 -13 1433  DL1SMA CT2HEX IM58 (x2)
003230  -3  914  DL1SMA EB3JT JN01
003230  +8  565  DL1SMA DK8HC JO42
003230  -6 1433  DL1SMA CT2HEX IM58
003300  -1  914  DL1SMA EB3JT JN01
003300  +7  565  DL1SMA DK8HC JO42
003330  -1  914  DL1SMA EB3JT JN01 (x2)
032000  -3 1209  YU65AEC DL1SMA JN48 (x2)
40m
UTC    dB Audio  Message
180145  +5 1716  EX7CQ DL1SMA JN48
180200 -14 1717  DL1SMA EX7CQ -07
180215  +6 1716  EX7CQ DL1SMA R-01
180230 -16 1716  DL1SMA EX7CQ RR73
180245  +1 1716  EX7CQ DL1SMA 73
180330 -10 1713  DL1SMA 9A4ZM JN86
180600 +17 2804  BG4UCZ DL1SMA JN48 (x3)
180815  +7 2879  VU3OSA DL1SMA JN48 (x3)
10m
UTC    dB Audio  Message
191600  -5  633  PY5NBX DL1SMA JN48 (x3)
191730  -4  657  PY2PIC DL1SMA JN48
191800  -4  657  PU7OHK DL1SMA JN48 (x2)
191900 -12 1260  PT9RR DL1SMA JN48
073430 -18 2236  DL1SMA LZ2VQ KN23
154030 -23 1591  DL1SMA 4O5JD -02 (x2)
171500 -17 2095  DL1SMA <...> -08
171530 -19 2094  DL1SMA RR73; IZ7SGQ <...> -10
160m
UTC    dB Audio  Message
212645 -13  526  RI1FJZ DL1SMA JN48 (x7)
213100 +14  522  DL1SMA 9A4ZM JN86
20m
UTC    dB Audio  Message
070330  +5  797  VK2AJB DL1SMA JN48 (x3)
070545 -13 2604  VK3FWR DL1SMA JN48 (x6)
080315  -1 2601  EP2AES DL1SMA JN48 (x3)
090645  -4 1433  PY8WW DL1SMA JN48 (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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