DJ4QV — 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: JO50

Receiver-side FT8 activity involving DJ4QV, decoded by SO8OO in southeastern Poland. 202 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 10 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-10-28.

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 202 FT8 messages attributed to DJ4QV as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (70%), followed by 40 m (30%). Most decodes (61%) 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 (67%); the estimated median was -2.2 dB.

Overview

202
Messages attributed
10
UTC dates decoded
26
Active 15-min windows
-2.2 dB
Estimated median S/N

Bands

First attributed message: 2026-06-10
Last attributed message: 2026-10-28 22:16 UTC

Observed FT8 message patterns

Attributed sample
202 messages
Active dates
10 UTC dates
Estimated median S/N
-2.2 dB
Estimated 10th-90th percentile
-14 to +6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 54, strong (≥ -8 dB) 136.

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 DJ4QV

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
JO50 · 139 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
770 km (approx.)
Last such locator decoded
2026-10-28 22:16 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 UTCBandDJ4QV S/NCounterpartCounterpart S/NMsgsCapture
10-29 19:15 40m - / +2 G0HSP -12 / - 3 ✓ Closing fragment
10-28 22:13 40m -9 / - YB2TTM - / - 5 Partial capture
10-28 22:10 40m -11 / +3 EG5TES -16 / -9 4 ✓ Full exchange observed
10-28 21:46 40m -11 / - EA1QC - / - 2 Partial capture
10-28 21:44 40m -10 / - LZ2KSQ - / - 2 ✓ Closing fragment
10-27 19:42 40m - / -17 RX3DRC -15 / - 2 ✓ Closing fragment
10-27 19:31 40m - / -14 IU0ERZ -5 / - 3 Partial capture
10-27 19:16 40m -13 / - M7FSE - / - 5 Partial capture
10-27 19:14 40m -1 / - UX7QG - / - 3 Partial capture
10-27 18:58 40m 0 / - YL3ASK - / -15 13 Partial capture
10-27 18:55 40m -2 / - M0NXD - / -14 3 ✓ Closing fragment
10-26 22:08 40m - / -16 RZ4M -15 / - 2 Partial capture
10-25 19:18 40m - / -24 IU5HIU -8 / - 4 ✓ Closing fragment
10-25 18:46 40m -11 / -16 LA8ENA -22 / - 5 Partial capture
10-25 18:43 40m -10 / - MW7HZQ - / -7 4 ✓ Closing fragment
09-29 19:50 40m - / -11 UR4LJ -2 / - 3 ✓ Closing fragment
09-29 19:44 40m -22 / - SP5MIG - / -7 2 Partial capture
09-29 19:41 40m - / -8 R6LKG -12 / - 3 ✓ Closing fragment
09-24 18:13 40m -10 / -3 F6BHK -13 / -7 4 ✓ Full exchange observed
08-20 08:58 20m +12 / - F1ODM - / - 4 Partial capture
08-20 08:56 20m +4 / +10 F5SFT -14 / - 6 ✓ Closing observed
08-20 08:53 20m +10 / - A61SD - / -13 5 ✓ Closing fragment
08-20 08:52 20m 0 / 0 IK4RVY -8 / - 3 ✓ Closing observed
08-20 08:45 20m -14 / - IZ4AIF -7 / - 5 ✓ Closing observed
08-20 08:39 20m 0 / - IN3OWY - / +3 2 ✓ Closing fragment
08-20 08:32 20m - / -13 RA6FSV -8 / - 4 ✓ Closing fragment
08-20 08:31 20m - / -13 RW9AD -12 / - 3 ✓ Closing fragment
08-20 08:30 20m - / -11 RX3VF +3 / - 3 ✓ Closing fragment
08-20 08:28 20m - / - DK4RH -16 / - 2 Partial capture
08-20 08:24 20m - / - IW5ALZ -4 / - 2 Partial capture
08-20 08:24 20m - / - RW9AD -16 / - 2 Partial capture
08-20 08:19 20m - / - DL3MIB +4 / - 2 ✓ Closing fragment
08-20 08:19 20m - / - F4HSB -6 / - 3 Partial capture
08-20 08:13 20m - / - S55A -22 / - 2 ✓ Closing fragment
08-20 08:08 20m -13 / - UT4QM - / 0 2 ✓ Closing fragment
08-20 08:06 20m -10 / -6 RN2F -8 / +1 3 ✓ Full exchange observed
08-20 08:04 20m -12 / - RD3FY - / -2 2 ✓ Closing fragment
08-20 08:03 20m -10 / -3 YO4GIY -10 / +4 4 ✓ Full exchange observed
08-20 08:00 20m -10 / - RA6MQ - / - 2 Partial capture
08-20 07:59 20m +2 / - <...> - / -11 2 Partial capture
08-20 07:53 20m -8 / - 4X4ZP - / - 11 Partial capture
08-20 07:47 20m +3 / - UA6ANQ - / -5 11 Partial capture
08-20 07:46 20m +4 / - IK4TVP - / +6 3 ✓ Closing fragment
08-20 07:44 20m -3 / - HB9OAB - / - 3 ✓ Closing fragment
08-12 20:09 20m -14 / - D2UY - / +1 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
214500  -9 1848  LZ2KSQ DJ4QV 73
214615 -12 1848  EA1QC DJ4QV JO50 (x2)
221000 -14 1446  DJ4QV EG5TES +03
221015 -12 1497  EG5TES DJ4QV R-09
221030 -18 1445  DJ4QV EG5TES RR73
221045 -10 1497  EG5TES DJ4QV R-09
221345  -9 1497  YB2TTM DJ4QV JO50 (x5)
191545 -12 1476  DJ4QV G0HSP IO90 (x3)
20m
UTC    dB Audio  Message
085330  +7  885  A61SD DJ4QV JO50 (x5)
085600  +0 1280  F5SFT DJ4QV JO50 (x3)
085715 -14 1280  DJ4QV F5SFT +10 (x2)
085800  +4 1280  F5SFT DJ4QV 73
085830 +13  331  F1ODM DJ4QV JO50 (x4)

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

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee