DJ3JA — 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: JO44

Receiver-side FT8 activity involving DJ3JA, decoded by SO8OO in southeastern Poland. 326 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, 10m, across 38 UTC dates in the available aggregate history. Observed between 2026-06-17 and 2026-10-08.

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 326 FT8 messages attributed to DJ3JA as the transmitting token by decoded message structure across 38 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (71%), followed by 20 m (26%) and 10 m (2%). Most decodes (56%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (71%); the estimated median was -19 dB.

Overview

326
Messages attributed
38
UTC dates decoded
108
Active 15-min windows
-19 dB
Estimated median S/N

Bands

First attributed message: 2026-06-17
Last attributed message: 2026-10-08 19:09 UTC

Observed FT8 message patterns

Attributed sample
326 messages
Active dates
38 UTC dates
Estimated median S/N
-19 dB
Estimated 10th-90th percentile
-24 to -11 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 231, moderate (-15 to -9 dB) 80, strong (≥ -8 dB) 15.

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 DJ3JA

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
JO44 · 157 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,006 km (approx.)
Last such locator decoded
2026-10-08 19:09 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 UTCBandDJ3JA S/NCounterpartCounterpart S/NMsgsCapture
10-08 19:05 40m - / - DL7ROB 0 / - 2 Partial capture
10-08 19:05 40m - / -5 F4BYA +7 / - 3 ✓ Closing fragment
10-08 18:58 40m -19 / - DK7UY - / - 2 Partial capture
10-08 18:49 40m -16 / -14 F4GVO +9 / - 5 ✓ Full exchange observed
10-08 18:42 40m -12 / -12 G4FAL 0 / - 3 ✓ Closing observed
10-08 18:34 40m -12 / -18 DK5IR -7 / - 3 ✓ Closing observed
10-08 18:28 40m -14 / - OZ0ZZ - / - 3 Partial capture
10-08 18:14 40m -10 / - OH7DSQ - / +7 2 ✓ Closing fragment
10-08 07:00 40m -15 / -18 IZ4JMA -16 / +2 3 Partial capture
10-08 06:59 40m -16 / - HB9FLH - / -6 2 ✓ Closing fragment
10-08 06:51 40m - / -3 DL8WEM +3 / - 3 ✓ Closing fragment
10-08 06:46 40m - / -17 S55A -10 / - 4 ✓ Closing fragment
10-08 06:40 40m -14 / - F4HMP - / - 4 Partial capture
10-08 04:22 40m - / -12 LZ2IP 0 / - 2 ✓ Closing fragment
10-08 03:57 40m - / -21 RW3QU -4 / - 5 ✓ Closing fragment
10-06 16:58 40m - / -8 LZ936BA -2 / - 2 Partial capture
10-06 16:57 40m -17 / - IQ9SZ/7 - / - 3 Partial capture
10-04 18:50 40m - / -16 PA3AGN -8 / - 6 Partial capture
10-04 18:48 40m -18 / -1 DC7MA -12 / +2 3 ✓ Full exchange observed
10-04 18:47 40m -8 / - SM5UNR - / +4 2 ✓ Closing fragment
10-04 18:45 40m -19 / -16 F6BHK -6 / 0 4 ✓ Full exchange observed
10-04 18:34 40m -13 / -12 IU5HIU -3 / - 5 ✓ Full exchange observed
10-04 18:32 40m -13 / - F4JXW - / +2 3 ✓ Closing fragment
10-04 18:29 40m -11 / -1 F4IFO 0 / - 5 ✓ Full exchange observed
10-04 18:17 40m -21 / - OZ1KZX -5 / - 2 ✓ Closing observed
08-30 09:54 20m -16 / -15 EA3FYO +1 / +6 5 Partial capture
08-30 09:50 20m -9 / - DM8MH - / 0 2 ✓ Closing fragment
08-29 19:26 20m - / -9 UA6YW -20 / - 2 ✓ Closing fragment
08-25 19:27 20m - / -16 LZ2ZD -4 / - 2 Partial capture
08-23 18:54 40m -9 / - PD0DNA - / +6 3 ✓ Closing fragment
08-23 18:45 40m -8 / -5 DH1PS +10 / - 4 ✓ Full exchange observed
08-23 18:45 40m - / -7 DL5SBY -4 / - 4 ✓ Closing fragment
08-23 18:40 40m -14 / - DG1JP - / -9 2 ✓ Closing fragment
08-23 18:38 40m -10 / -12 RY3F -1 / - 3 ✓ Closing observed
08-23 18:35 40m - / -13 G0VXE +2 / - 2 ✓ Closing fragment
08-23 18:32 40m - / +2 DJ3HW +2 / - 2 ✓ Closing fragment
08-23 16:11 20m -22 / -14 UR5LY -18 / +3 7 Partial capture
08-23 07:15 20m - / -12 R2AL -6 / - 3 Partial capture
08-23 07:12 20m -11 / -19 F6DZU +2 / - 5 ✓ Closing observed
08-17 19:39 60m -7 / - F/PA2JWN -7 / - 2 ✓ Closing observed
08-17 19:38 60m - / - DK7ZT -13 / - 3 Partial capture
08-15 16:30 20m -23 / - DA0LH - / - 3 Partial capture
08-14 19:41 20m - / -24 RZ4FWA -12 / - 5 Partial capture
08-14 19:27 20m - / -13 EG2FPA -2 / - 2 ✓ Closing fragment
08-14 09:41 20m -22 / - R4HLO - / -14 2 Partial capture
08-12 19:31 10m - / -16 IK4POG -1 / - 3 ✓ Closing fragment
08-12 19:23 10m -19 / - CT3MD -8 / -10 3 Partial capture
08-12 18:59 10m - / -4 F1PBZ +6 / - 3 ✓ Closing fragment
08-11 19:31 40m - / -2 DL8TV -14 / - 5 ✓ Closing fragment
08-11 19:29 40m - / - OK1FED -4 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
184930 -15 1985  F4GVO DJ3JA JO44
184945 +11  283  DJ3JA F4GVO -14
185000 -17 1985  F4GVO DJ3JA R+14
185015  +7  283  DJ3JA F4GVO RR73
185030 -15 1985  F4GVO DJ3JA 73
185800 -17 1651  DK7UY DJ3JA JO44 (x2)
190515  +4 2839  DJ3JA F4BYA JN19 (x2)
190545  +0 1802  DJ3JA DL7ROB JN58
190615 +10 2839  DJ3JA F4BYA 73
190615  +0 1802  DJ3JA DL7ROB JN58
190930 -14 1915  CQ DJ3JA JO44
190945  -8 1916  DJ3JA DM3BN JO60
191015 -17 1802  DJ3JA DL7ROB R-06
20m
UTC    dB Audio  Message
161545 -24 1922  UR5LY DJ3JA R+03
164930 -12  318  DJ3JA HB9IUI JN36
192700  -3 2335  DJ3JA LZ2ZD -16 (x2)
191915 -17 2107  DJ3JA E75C -15
192615 -21 1737  DJ3JA UA6YW R-09 (x2)
094915 -11 1681  CQ DJ3JA JO44
095015  -6 1681  DM8MH DJ3JA +00 (x2)
095430  +1 1785  DJ3JA EA3FYO -15
095445 -15 1827  EA3FYO DJ3JA R+06 (x4)
60m
UTC    dB Audio  Message
193845 -12 1900  DJ3JA DK7ZT +14 (x2)
193945  -7  834  <DJ3JA> F/PA2JWN
193945 -13 1900  DJ3JA DK7ZT +14
194030  -7  833  F/PA2JWN DJ3JA RR73
10m
UTC    dB Audio  Message
185945  +4 2684  DJ3JA F1PBZ RR73 (x2)
190245  -1  491  DJ3JA IK4LZH 73
191745 -19 1432  DJ3JA G0UDE RR73
192000 -24 1776  CQ DJ3JA JO44                         a1
192200 -22 1777  CS7AFM DJ3JA RR73
192315  -5 1028  DJ3JA CT3MD IM13 (x2)
192400 -19 1777  CT3MD DJ3JA -10
193115  -1 1777  DJ3JA IK4POG JN54 (x3)
193930 -22 1777  YU1BD DJ3JA RR73
194000 -19 1777  CQ DJ3JA JO44
084445  -6  979  DJ3JA SV1CQN -18

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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