DJ4FAN — 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 DJ4FAN, decoded by SO8OO in southeastern Poland. 1,101 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 82 UTC dates in the available aggregate history. Observed between 2026-06-09 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 1,101 FT8 messages attributed to DJ4FAN as the transmitting token by decoded message structure across 82 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (39%), followed by 80 m (24%) and 60 m (15%). The busiest six-hour window was 03:00-09:00 UTC, containing 43% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8.1 dB.

Overview

1,101
Messages attributed
82
UTC dates decoded
239
Active 15-min windows
-8.1 dB
Estimated median S/N

Bands

First attributed message: 2026-06-09
Last attributed message: 2026-10-23 12:59 UTC

Observed FT8 message patterns

Attributed sample
1,101 messages
Active dates
82 UTC dates
Estimated median S/N
-8.1 dB
Estimated 10th-90th percentile
-19.6 to +1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 249, moderate (-15 to -9 dB) 294, strong (≥ -8 dB) 558.

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 DJ4FAN

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 · 778 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
920 km (approx.)
Last such locator decoded
2026-10-23 12:58 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 UTCBandDJ4FAN S/NCounterpartCounterpart S/NMsgsCapture
10-23 12:58 40m -21 / - DF4JY - / -19 2 ✓ Closing fragment
10-22 04:10 40m - / -7 TO4A +6 / - 2 Partial capture
10-14 19:49 160m - / -17 DL2YDX -8 / - 2 ✓ Closing fragment
10-14 19:45 160m -22 / - DC0GL -6 / -7 4 ✓ Closing observed
10-14 19:41 160m - / -9 DM2PE -2 / - 2 Partial capture
10-14 19:36 160m - / -16 DL4BBY -15 / - 3 ✓ Closing fragment
10-13 19:40 80m -4 / - GM0MST - / - 2 Partial capture
10-13 16:42 60m -6 / +10 DL2PK/M -10 / -5 3 Partial capture
10-12 20:00 80m -10 / - ZA/OG2T - / - 2 Partial capture
10-12 19:58 80m -12 / - UA9JTJ/9 - / - 2 Partial capture
10-12 19:54 80m -12 / - SP2MGR/P - / - 2 Partial capture
10-12 19:51 80m -3 / - ZA/OG2T - / - 4 Partial capture
10-12 17:11 80m -4 / - DK0RPO - / -7 4 ✓ Closing fragment
10-11 17:04 60m - / -4 9H6C -17 / - 2 Partial capture
10-11 16:59 80m - / -2 PE50SCOUT -15 / - 2 Partial capture
10-11 16:58 60m -2 / - <...> - / -14 2 Partial capture
10-11 16:56 80m -12 / - F5OYA/P - / - 2 Partial capture
10-10 17:09 40m +4 / - DK0RMR - / - 6 Partial capture
10-09 20:16 60m -3 / - IU5HIU -18 / -13 2 Partial capture
10-07 20:00 60m -5 / - J48S - / - 9 Partial capture
10-07 04:32 80m -6 / -12 DO5PY -5 / - 4 ✓ Closing observed
10-07 04:31 80m - / - HF5A -18 / - 2 Partial capture
10-07 04:26 80m -12 / - KE2FP - / - 5 Partial capture
10-03 04:18 40m -6 / - YV5KG - / - 5 Partial capture
10-03 04:16 40m - / -6 Z61DX 0 / - 3 ✓ Closing fragment
10-02 19:49 60m -4 / - 4Z5KU - / -19 5 ✓ Closing fragment
10-02 19:46 60m -4 / -15 4X5EF -10 / -16 6 ✓ Full exchange observed
10-02 19:38 60m -2 / - DD4U -1 / -2 5 ✓ Closing observed
10-02 03:07 160m -22 / - DL4NHP - / - 3 Partial capture
10-02 03:04 160m -20 / -17 SP3DVO -2 / -16 12 ✓ Full exchange observed
10-02 03:00 160m -21 / -12 DL1VVQ -12 / -7 4 ✓ Full exchange observed
10-02 02:59 160m -24 / -5 DL3HBF -2 / +3 8 ✓ Full exchange observed
10-02 02:55 160m -19 / -18 3Z6SK -5 / -18 5 ✓ Full exchange observed
10-02 02:53 160m -20 / - LA9JKA - / - 3 Partial capture
10-02 02:35 60m -3 / 0 LZ9DX -10 / -9 5 ✓ Full exchange observed
10-02 02:32 80m -1 / -4 SM7TZK 0 / +2 6 ✓ Full exchange observed
10-02 02:27 80m +2 / +2 DD4U -1 / +5 5 ✓ Full exchange observed
10-01 18:24 40m -2 / - DD4U - / +3 2 Partial capture
09-27 01:52 160m -18 / - SV4FFK - / - 2 Partial capture
09-27 01:49 160m -19 / -23 EC1AIJ -20 / -14 4 ✓ Full exchange observed
09-27 01:46 160m -22 / - G7RHF -19 / -21 5 ✓ Closing observed
09-27 01:44 160m -18 / -20 DL5CK +1 / -3 6 ✓ Full exchange observed
09-27 01:43 160m -12 / - LZ7VV - / - 2 Partial capture
09-27 01:41 160m -17 / -19 HA5AO +10 / -1 6 ✓ Full exchange observed
09-27 01:36 80m +3 / -5 GM6URC -6 / -6 3 Partial capture
09-27 01:34 80m +2 / +5 DD4U +4 / +8 5 ✓ Full exchange observed
09-26 19:12 80m - / -8 SP100PKP -3 / - 3 Partial capture
09-26 19:10 80m -14 / - SO100PKP - / -9 2 Partial capture
09-26 19:10 80m - / -8 3Z100PKP -2 / - 4 Partial capture
09-26 19:09 80m -5 / - R2EA/P - / -7 6 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
041930  -5 2784  YV5KG DJ4FAN JN49 (x3)
170900  +0  874  DK0RMR DJ4FAN JN49 (x6)
041030  +5  388  DJ4FAN TO4A -07 (x2)
041130  +6  388  DJ4FAN RR73; DM2FK <...> -06
125815 -18 1667  CQ DJ4FAN JN49
125845 -22 1666  DF4JY DJ4FAN -19 (x2)
160m
UTC    dB Audio  Message
030845 -23 1824  DL4NHP DJ4FAN JN49 (x2)
193630 -14 1670  DJ4FAN DL4BBY -16 (x3)
194000  -9 2227  DJ4FAN OZ2LIN RR73
194130  +0  989  DJ4FAN DM2PE -09 (x2)
194500 -19 1968  DC0GL DJ4FAN JN49 (x3)
194615  -6 1433  DJ4FAN DC0GL RR73
194700 -16 1964  F8IPH DJ4FAN JN49
194900  -7  998  DJ4FAN DL2YDX -17 (x2)
80m
UTC    dB Audio  Message
195100  +3 2652  ZA/OG2T DJ4FAN JN49 (x2)
195200 -10 1650  LZ/TF1OL DJ4FAN JN49
195230  -3 2649  ZA/OG2T DJ4FAN JN49 (x2)
195430 -10 1657  SP2MGR/P DJ4FAN JN49 (x2)
195600 -14 1654  LZ/TF1OL DJ4FAN JN49
195800  -9 1626  UA9JTJ/9 DJ4FAN JN49 (x2)
200030 -12 1597  ZA/OG2T DJ4FAN JN49 (x2)
194045 -10 1714  GM0MST DJ4FAN JN49 (x2)
194345  +5 1627  DJ4FAN DL/AD2LX -02
60m
UTC    dB Audio  Message
200315  -7 1614  J48S DJ4FAN JN49 (x3)
201630  -2  979  CQ DJ4FAN JN49
201645 -18 1491  DJ4FAN IU5HIU JN53
201700  -3  978  IU5HIU DJ4FAN -13
165730  -9 1357  XW9WQT/R DJ4FAN R-14
165800 -10 1856  IK3/UY7LA DJ4FAN R-14
165830  -5 1353  <...> DJ4FAN R-14 (x2)
170400 -17 1410  DJ4FAN 9H6C -04 (x2)
164245  -6 1688  <DL2PK/M> DJ4FAN JN49
164330 -10  799  DJ4FAN DL2PK/M +10
164345  -6 1686  DL2PK/M DJ4FAN R-05
20m
UTC    dB Audio  Message
135615  -3 2794  <...> DJ4FAN JN49
135630  +4 1756  DJ4FAN IR7MGGC -14
135645  -7 1794  <...> DJ4FAN R-12 (x2)
154530 -20 1755  DJ4FAN IR7MGGC -15
122030 -13  628  DJ4FAN I0/VA3ITA -20
122145 -15  629  I0/VA3ITA DJ4FAN R-20
085000  +5 2104  DJ4FAN II7MGBT -07
085315  -6 2400  <...> DJ4FAN JN49 (x4)
181900  -8 1793  R5QO/QRP DJ4FAN R+10
082000  +0 2824  <...> DJ4FAN JN49
082115  -5 1755  DJ4FAN IR7MGGC +04

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

CW history is temporarily unavailable.

Explore CW reception at SO8OO

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