RZ3DJ — 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: European Russia Most frequent locator attributed to this token: KO85

Receiver-side FT8 activity involving RZ3DJ, decoded by SO8OO in southeastern Poland. 1,448 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 54 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-11-07.

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 1,448 FT8 messages attributed to RZ3DJ as the transmitting token by decoded message structure across 54 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (36%), followed by 80 m (30%) and 160 m (24%). Most decodes (75%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (90%); the estimated median was +2 dB.

Overview

1,448
Messages attributed
54
UTC dates decoded
170
Active 15-min windows
+2 dB
Estimated median S/N

Bands

160m · 346 80m · 429 40m · 516 20m · 61 10m · 96
First attributed message: 2026-06-06
Last attributed message: 2026-11-07 14:18 UTC

Observed FT8 message patterns

Attributed sample
1,448 messages
Active dates
54 UTC dates
Estimated median S/N
+2 dB
Estimated 10th-90th percentile
-8.3 to +11.3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 24, moderate (-15 to -9 dB) 119, strong (≥ -8 dB) 1,305.

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 RZ3DJ 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 RZ3DJ

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
KO85 · 855 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,193 km (approx.)
Last such locator decoded
2026-11-07 14:17 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 UTCBandRZ3DJ S/NCounterpartCounterpart S/NMsgsCapture
11-07 14:17 80m 0 / - DK8HC/P - / -21 3 Partial capture
11-07 05:49 40m +12 / - GX6RAF/P - / -14 3 Partial capture
11-07 05:45 40m +14 / - F5OYA/P - / -15 3 Partial capture
11-07 05:24 40m -4 / - UB4FJJ/P - / - 5 ✓ Closing fragment
11-07 05:07 40m +2 / - 4U1UN - / - 11 ✓ Closing fragment
11-06 20:57 80m -2 / - TA4SSK - / -23 3 ✓ Closing fragment
11-06 20:56 80m +5 / - JJ3JHP - / - 2 Partial capture
11-06 20:52 80m +2 / - PE40EUDXF - / -2 2 Partial capture
11-06 20:48 160m +4 / -1 UA9QFF -24 / - 5 ✓ Closing observed
11-06 20:36 40m -6 / - 9X5KM - / - 4 Partial capture
11-04 13:56 80m 0 / - KH8A - / -21 27 Partial capture
11-04 12:25 80m +6 / - KH8A - / -24 17 Partial capture
11-03 15:16 80m +2 / - R9CS/P - / - 11 Partial capture
11-03 15:02 80m -11 / - R9CS/P - / - 12 Partial capture
11-03 14:56 80m -7 / - R9CS/P - / - 3 Partial capture
11-01 14:44 80m +2 / - HS5NMF - / - 10 Partial capture
11-01 14:38 80m +1 / +3 RM1O -1 / -2 4 ✓ Full exchange observed
11-01 14:35 80m +3 / - EX7DY - / -23 3 ✓ Closing fragment
11-01 14:30 80m -5 / - RA6FCU/P - / -10 4 ✓ Closing fragment
10-28 18:25 40m +3 / - FK8HA - / -6 5 ✓ Closing fragment
10-28 18:22 40m +7 / - BD8FWI - / -21 3 ✓ Closing fragment
10-28 18:20 40m -1 / - R0WC - / -5 3 ✓ Closing fragment
10-28 18:15 40m +14 / - 7P8GE - / -18 7 ✓ Closing fragment
10-28 18:12 40m -4 / - EP2AES -18 / -8 4 ✓ Closing observed
10-27 18:38 80m -6 / - RN3YN -7 / -16 3 Partial capture
10-27 18:35 80m -4 / - XX9TXN - / -21 5 ✓ Closing fragment
10-27 18:32 80m -12 / - XX9TXN - / - 2 Partial capture
10-27 18:05 160m -10 / - OH0Z - / - 6 Partial capture
10-27 18:02 160m -10 / -4 RA6MQ/P -18 / +2 6 ✓ Full exchange observed
10-26 19:10 40m - / -1 GJ0KYZ +2 / - 2 Partial capture
10-25 16:03 40m +4 / - BG5JQV - / -8 2 ✓ Closing fragment
10-25 16:02 40m +6 / - UA0L - / -13 2 Partial capture
10-25 15:58 40m +7 / - RD0L/P - / - 3 Partial capture
10-18 07:03 40m +8 / - R9CS/P - / -15 2 Partial capture
10-18 06:26 40m +9 / - RK3YWS/P -13 / -6 15 ✓ Closing observed
10-18 06:24 40m +4 / - YV5KG - / - 3 Partial capture
10-18 06:18 40m +1 / - RA4ADF/P - / -14 2 Partial capture
10-17 12:25 40m -2 / - UB3ADO/P - / +1 5 ✓ Closing fragment
10-16 18:59 80m +18 / - BH4BNQ - / -19 2 ✓ Closing fragment
10-16 18:58 80m +19 / - JA1BJY - / -18 3 Partial capture
10-16 18:54 80m -3 / - JA6EXO - / - 5 Partial capture
10-16 18:52 80m 0 / - JA3XNH - / -16 3 ✓ Closing fragment
10-16 18:50 80m +3 / - RA3RPW - / -3 2 ✓ Closing fragment
10-16 18:49 80m +2 / - UA9UIS -16 / -18 3 ✓ Closing observed
10-16 18:45 80m +6 / - JE3GRQ - / -12 8 ✓ Closing fragment
10-16 18:43 80m +6 / - R8CW/4 - / -7 2 Partial capture
10-16 18:41 80m +8 / - 9V1YC - / -19 3 ✓ Closing fragment
10-16 18:39 80m +4 / - R8CW/4 - / -1 2 Partial capture
10-16 18:32 80m +7 / - JA6VQA - / -11 5 ✓ Closing fragment
10-16 18:21 160m +2 / - R2EA/P -19 / -2 13 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
205200  +2 1340  PE40EUDXF RZ3DJ KO85
205215  +3 2804  RZ3DJ PE50SCOUT -08
205230  +3 1340  PE40EUDXF RZ3DJ R-02
205400 +11 2581  YO9HP RZ3DJ 73
205500  +8 2581  SV1DKR RZ3DJ RR73
205615  +3 2581  JJ3JHP RZ3DJ KO85 (x2)
205715  -1 1328  TA4SSK RZ3DJ KO85 (x3)
210000 +17 2859  JF0CSK RZ3DJ KO85
141645  +1 2309  W1AW/4 RZ3DJ KO85
141715  +0 2241  DK8HC/P RZ3DJ KO85 (x3)
40m 
UTC    dB Audio  Message
051230 +16 2801  4U1UN RZ3DJ KO85 (x2)
051415 +16 2802  GB1POPPY RZ3DJ KO85
052415  -6 1400  UB4FJJ/P RZ3DJ KO85 (x5)
054545 +11 3038  F5OYA/P RZ3DJ KO85 (x3)
054945 +12  338  GX6RAF/P RZ3DJ KO85 (x3)
055115 +12  315  EA1ETQ/P RZ3DJ R-23
160m 
UTC    dB Audio  Message
180315 -21 2024  RZ3DJ RA6MQ/P -04
180330 -12 2606  RA6MQ/P RZ3DJ R+02
180345 -15 2024  RZ3DJ RA6MQ/P RRR
180400  -9 2606  RA6MQ/P RZ3DJ 73
180500  -8 2606  OH0Z RZ3DJ KO85 (x6)
204800 +12 2932  UA9QFF RZ3DJ KO85 (x3)
204915 -24 1842  RZ3DJ UA9QFF -01
205000  -6 1339  UA9QFF RZ3DJ 73
20m 
UTC    dB Audio  Message
181715 -24 1966  R6DBT RZ3DJ -23
181900 -15 2485  RZ3DJ R9AL -09 (x2)
181945 -24 1967  R6DBT RZ3DJ KO85
132245 -12  413  OZ5ESB/LH RZ3DJ KO85
071430  +2 1804  RZ3DJ F5RRS JN36 (x5)
10m 
UTC    dB Audio  Message
175615  -5  372  OJ0JR RZ3DJ 73 (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

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