DL4FAP — 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: JN49

Receiver-side FT8 activity involving DL4FAP, decoded by SO8OO in southeastern Poland. 373 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 35 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-22.

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 373 FT8 messages attributed to DL4FAP as the transmitting token by decoded message structure across 35 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (75%), followed by 80 m (13%) and 20 m (9%). The busiest six-hour window was 13:00-19:00 UTC, containing 43% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7.2 dB.

Overview

373
Messages attributed
35
UTC dates decoded
73
Active 15-min windows
-7.2 dB
Estimated median S/N

Bands

80m · 50 40m · 279 20m · 35 10m · 9
First attributed message: 2026-06-08
Last attributed message: 2026-10-22 16:53 UTC

Observed FT8 message patterns

Attributed sample
373 messages
Active dates
35 UTC dates
Estimated median S/N
-7.2 dB
Estimated 10th-90th percentile
-17 to +4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 51, moderate (-15 to -9 dB) 112, strong (≥ -8 dB) 210.

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 DL4FAP 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 DL4FAP

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
JN49 · 263 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
920 km (approx.)
Last such locator decoded
2026-10-22 16:51 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 UTCBandDL4FAP S/NCounterpartCounterpart S/NMsgsCapture
10-22 16:49 40m -2 / - EX7CQ - / -8 9 Partial capture
10-22 16:47 40m +1 / - C37URA - / - 3 Partial capture
10-22 16:45 40m +2 / - UA2FFD - / -8 2 ✓ Closing fragment
10-22 08:10 40m -10 / - VK3BAC - / - 7 Partial capture
10-22 08:05 40m 0 / - ZL4AS - / -11 6 ✓ Closing fragment
10-22 08:00 40m -1 / - ZL4AS - / - 3 Partial capture
10-21 08:11 80m -8 / - DO8JB - / - 2 Partial capture
10-20 21:47 40m -7 / - HS0ZOY - / - 3 Partial capture
10-20 16:33 40m -3 / - RZ0SW - / -12 3 Partial capture
10-20 16:24 40m -5 / -15 R3DCA -6 / -5 2 Partial capture
10-20 16:11 40m -3 / - R8OAE - / -14 6 Partial capture
10-20 16:06 40m 0 / -16 RA8AF -4 / -7 10 Partial capture
10-20 16:02 40m -6 / - UB0SMX - / - 5 Partial capture
10-17 16:11 40m - / - DL7ACA +5 / - 5 Partial capture
10-17 16:11 40m -10 / - BG4UCZ - / - 5 Partial capture
10-12 08:07 40m -18 / - YV5JLO - / - 2 Partial capture
10-10 13:42 40m -5 / - R2GFM - / - 2 Partial capture
10-10 04:48 40m -12 / - HI3LER - / - 2 Partial capture
10-10 03:34 40m -4 / - HI8WJI - / - 3 Partial capture
10-09 16:48 40m -13 / - UA6ADU - / - 3 Partial capture
10-09 16:46 40m -4 / - RW4CCW - / - 2 Partial capture
10-09 16:41 40m -5 / - ZA/OG2T - / -9 6 Partial capture
10-08 08:41 40m - / -18 9A7BB -15 / - 3 ✓ Closing fragment
10-04 16:01 40m -2 / -16 UT0UE -15 / -6 5 ✓ Full exchange observed
10-03 16:55 40m -8 / - UT0UE - / - 2 Partial capture
10-03 16:51 40m -6 / - RL2F - / +1 3 ✓ Closing fragment
10-03 15:41 40m +2 / - UA2FFD - / - 2 Partial capture
10-03 15:36 40m -12 / - UA2FFD - / - 4 Partial capture
09-29 16:57 40m - / - PG9S -6 / - 2 Partial capture
09-29 16:51 40m +3 / - 2W0YLE - / -2 3 ✓ Closing fragment
09-29 16:47 40m +10 / - C31HS - / - 2 Partial capture
09-26 22:12 80m +4 / - RW9JZ - / - 3 Partial capture
09-26 21:45 40m -17 / - NF3R - / - 4 Partial capture
09-26 21:41 40m -9 / - TN8GD - / - 2 Partial capture
09-19 16:24 80m +12 / - RA7E - / - 2 Partial capture
09-19 15:43 80m -15 / - KH8WW - / - 6 Partial capture
09-19 04:59 40m -3 / - K5WVF - / -24 4 ✓ Closing fragment
09-19 04:55 40m +9 / -12 NP3RK -12 / -9 4 ✓ Full exchange observed
09-19 04:51 40m -2 / - SV9QWC - / -10 4 ✓ Closing fragment
09-19 04:50 40m 0 / - HK3W - / - 2 Partial capture
09-19 04:48 40m -3 / - WV5A - / -17 3 ✓ Closing fragment
09-19 04:45 40m +4 / - DJ0MAB -1 / -21 4 Partial capture
09-19 04:44 40m +4 / - EA5HM - / +9 2 ✓ Closing fragment
09-19 04:43 40m +7 / - KJ5PTH - / -9 3 ✓ Closing fragment
09-19 04:42 40m +4 / - YO4GIY -7 / -5 3 ✓ Closing observed
09-19 04:38 40m +9 / -3 YL2KF -12 / +3 4 ✓ Full exchange observed
09-19 04:34 40m -1 / -14 UT5MB -5 / +4 5 ✓ Full exchange observed
09-19 04:33 40m 0 / - HK3YL - / -5 3 ✓ Closing fragment
09-19 04:30 40m -8 / - DL3MIB +7 / - 2 ✓ Closing observed
09-19 04:30 40m - / - US3EW +1 / - 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
081400  -6 1641  VK3BAC DL4FAP JN49
164500  +3 1689  UA2FFD DL4FAP R-08 (x2)
164700  +3 1535  C37URA DL4FAP JN49 (x3)
164945  -3 1714  EX7CQ DL4FAP JN49 (x9)
80m 
UTC    dB Audio  Message
183230  +3  640  DL4FAP OK1DLA R+03
183245  -1  640  OK1DLA DL4FAP RR73
154315 -10 1355  KH8WW DL4FAP JN49 (x6)
162400 +10  701  RA7E DL4FAP JN49 (x2)
221230  +3 1909  RW9JZ DL4FAP JN49 (x3)
081115  -7  597  DO8JB DL4FAP JN49 (x2)
10m 
UTC    dB Audio  Message
091330 +10  557  DL4FAP Z34K +03 (x2)
091430 -14 1691  DL4FAP IK4TVP +24 (x5)
143930 -16 2294  DL4FAP D2ACE -05
144400  +0  404  DL4FAP C91RU -11
20m 
UTC    dB Audio  Message
090815 -15 1721  EX9A DL4FAP JN49
090915  -8 1721  DL1HXA DL4FAP +02 (x2)
091145 -16 1721  EB3JT DL4FAP -02 (x2)
091345 -16 1721  EX9A DL4FAP JN49 (x2)
091545  -8 1532  CQ DL4FAP JN49
091600 -14 1532  DL4FAP PC2J JO22 (x6)
091730  -5  683  K4A DL4FAP JN49

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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