DL1API — 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: JO51

Receiver-side FT8 activity involving DL1API, decoded by SO8OO in southeastern Poland. 696 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 56 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-21.

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 696 FT8 messages attributed to DL1API as the transmitting token by decoded message structure across 56 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (39%), followed by 20 m (29%) and 60 m (17%). Most decodes (65%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (74%); the estimated median was -3.6 dB.

Overview

696
Messages attributed
56
UTC dates decoded
127
Active 15-min windows
-3.6 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-10-21 22:12 UTC

Observed FT8 message patterns

Attributed sample
696 messages
Active dates
56 UTC dates
Estimated median S/N
-3.6 dB
Estimated 10th-90th percentile
-12.7 to +6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 21, moderate (-15 to -9 dB) 163, strong (≥ -8 dB) 512.

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 DL1API

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
JO51 · 513 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
779 km (approx.)
Last such locator decoded
2026-10-21 22:12 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 UTCBandDL1API S/NCounterpartCounterpart S/NMsgsCapture
10-21 22:07 160m -10 / - 7P8GE - / - 9 Partial capture
10-20 20:59 160m +2 / - OH0Z - / - 3 Partial capture
10-20 20:55 160m -2 / - OH0Z - / - 2 Partial capture
10-19 07:20 40m -2 / - DA0M - / -13 4 Partial capture
10-19 07:19 40m -2 / -4 S55A -14 / -4 6 ✓ Full exchange observed
10-19 07:15 40m -1 / - YU65AEC - / -2 4 Partial capture
10-19 07:13 40m +8 / - OE8JOTA - / - 4 Partial capture
10-18 18:48 40m +14 / - VK4DAD - / - 6 Partial capture
10-16 07:17 60m -7 / - VP2MAW - / -13 4 ✓ Closing fragment
10-13 07:13 60m 0 / - HB9LEU - / - 2 Partial capture
10-13 07:00 60m +2 / - HC2GRC - / - 16 Partial capture
10-11 21:59 60m -11 / - A92AE - / - 31 Partial capture
10-11 20:26 60m -10 / - A92AE - / - 12 Partial capture
10-11 19:44 60m -16 / - A92AE - / - 12 Partial capture
10-09 21:14 40m +3 / - BG0FQU - / - 9 Partial capture
10-09 21:10 40m +3 / - GD3SKZ - / - 2 Partial capture
10-09 21:07 40m -4 / - RZ4FWA - / -7 4 Partial capture
10-09 21:05 40m -4 / -15 RN6HK +7 / - 5 ✓ Closing observed
10-09 21:03 40m -6 / - JL1QOC - / -8 2 Partial capture
10-09 20:59 40m -10 / - T77R - / - 2 Partial capture
10-07 21:12 40m -6 / - TA3XEE - / -15 2 ✓ Closing fragment
10-07 21:09 40m 0 / - JA0KJD - / - 2 Partial capture
09-23 03:06 80m +2 / - K6VHF/HR9 - / -19 20 Partial capture
09-23 03:03 80m +4 / - II4PAGE - / - 2 Partial capture
09-23 02:55 80m +3 / - K6VHF/HR9 - / - 4 Partial capture
09-23 02:50 80m +5 / - HK4EIC - / -13 8 ✓ Closing fragment
09-22 20:37 60m -1 / - HB9PLH - / +1 3 ✓ Closing fragment
09-17 18:24 40m +2 / -22 UB2FEK -11 / -16 5 ✓ Full exchange observed
09-17 18:22 40m +2 / - UB2FEK - / - 2 Partial capture
09-15 20:24 60m +4 / - D44TWO - / - 3 Partial capture
09-10 21:07 80m +7 / - OE2AGZ - / - 4 Partial capture
09-09 21:42 40m -3 / - J38DX - / -12 19 Partial capture
09-09 21:21 40m -2 / - D44TWO - / -16 6 ✓ Closing fragment
09-09 21:12 40m -16 / - D44TWO - / - 10 Partial capture
09-08 20:56 40m -8 / - RL1I/P - / - 3 Partial capture
09-07 19:48 80m -4 / - ZS1J - / - 3 Partial capture
09-07 19:43 80m -5 / - ZS1J - / - 5 Partial capture
09-07 18:54 40m +11 / - F5LMJ - / -7 2 ✓ Closing fragment
09-07 18:49 40m +12 / - HB9LEU +3 / -8 5 ✓ Closing observed
09-06 21:02 60m +2 / - D2ACE - / - 19 Partial capture
08-27 17:56 20m -10 / - RI1FJL - / -13 3 Partial capture
08-24 20:14 20m -8 / -7 EA2KB +5 / +1 5 ✓ Full exchange observed
08-24 19:40 20m -9 / -4 D2IM +2 / - 4 ✓ Closing observed
08-15 21:15 40m +1 / - TN8GD - / -15 8 ✓ Closing fragment
08-15 20:56 40m +1 / - TN8GD - / - 5 Partial capture
08-15 20:26 40m -1 / - TN8GD - / -15 16 Partial capture
08-15 19:41 20m - / 0 EA5RO 0 / - 2 ✓ Closing fragment
08-08 18:05 20m +1 / - DS3EXT - / - 3 Partial capture
08-08 17:55 20m -4 / - JY5JA - / - 4 Partial capture
08-07 22:12 40m +2 / - T77WD - / - 12 Partial capture

Recent FT8 messages decoded at SO8OO

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

160m
UTC    dB Audio  Message
205500  +0 2556  OH0Z DL1API JO51 (x5)
220715 -15 2612  7P8GE DL1API JO51 (x9)
40m
UTC    dB Audio  Message
071645  -3  943  YU65AEC DL1API JO51 (x2)
071730 -21 1757  DL1API RR73; I5MPN <...> -06
071900 -19  794  DL1API S55A JN65
071915  -3  943  EB3JT DL1API RR73
071930 -14  795  DL1API S55A JN65
071930 -10  944  DL1API DJ0MAB JN49
071945  -3  943  S55A DL1API -04
072000 -10  795  DL1API S55A R-04
072015  -2  943  S55A DL1API RR73
072030 -11  794  DL1API S55A 73
072045  -2  943  DA0M DL1API -13 (x4)
60m
UTC    dB Audio  Message
070500  +3 2653  HC2GRC DL1API JO51 (x9)
071330  -1 2653  HB9LEU DL1API JO51 (x2)
071745  -2  656  VP2MAW DL1API JO51 (x4)
80m
UTC    dB Audio  Message
030915  +7 1233  K6VHF/HR9 DL1API R-19 (x15)
20m
UTC    dB Audio  Message
194115  +2  405  DL1API EA5RO +00 (x2)
194045 -12 2718  D2IM DL1API JO51 (x2)
194330  +4 2542  DL1API D2IM -04 (x2)
194915 -14 2718  BI4XDT DL1API JO51
201445  +5  717  DL1API EA2KB R-07
201600 -11 2756  EA2KB DL1API RR73 (x4)
175615 -11 2387  RI1FJL DL1API JO51 (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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