RD3BZ — 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 RD3BZ, decoded by SO8OO in southeastern Poland. 289 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 12 UTC dates in the available aggregate history. Observed between 2026-06-07 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 289 FT8 messages attributed to RD3BZ as the transmitting token by decoded message structure across 12 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (94%), followed by 20 m (6%). Most decodes (90%) fell within the six-hour window 12:00-18:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

289
Messages attributed
12
UTC dates decoded
49
Active 15-min windows
-10 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-10-22 16:31 UTC

Observed FT8 message patterns

Attributed sample
289 messages
Active dates
12 UTC dates
Estimated median S/N
-10 dB
Estimated 10th-90th percentile
-20 to -3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 77, moderate (-15 to -9 dB) 104, strong (≥ -8 dB) 108.

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 RD3BZ

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 · 148 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,193 km (approx.)
Last such locator decoded
2026-10-22 16:31 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 UTCBandRD3BZ S/NCounterpartCounterpart S/NMsgsCapture
10-22 16:29 40m -17 / -4 YT1VDA -6 / - 7 Partial capture
10-22 15:53 40m - / - R7DX -2 / - 2 Partial capture
10-22 15:48 40m 0 / +2 RN6LPC -11 / 0 3 ✓ Full exchange observed
10-22 15:44 40m -11 / -10 EA1Z -16 / -23 13 ✓ Full exchange observed
10-22 15:26 40m -7 / - OZ1LNR - / -8 3 ✓ Closing fragment
10-22 15:21 40m -5 / - G1AMN - / -25 4 Partial capture
10-22 15:18 40m -12 / -2 IZ8XXE -13 / -12 5 ✓ Full exchange observed
10-20 13:13 40m -6 / - OM1DHI - / - 4 Partial capture
10-20 13:13 40m - / -13 OR82CLM -18 / - 2 Partial capture
10-20 13:10 40m -9 / - I1/OE1AAJ - / - 3 Partial capture
10-19 13:30 40m - / 0 HF37KJP -8 / - 3 Partial capture
10-19 12:39 40m -19 / - PA4WIM - / - 5 Partial capture
10-19 12:33 40m -13 / - DL1CC - / -3 7 Partial capture
10-19 12:30 40m - / - DL1CC -9 / - 2 Partial capture
10-19 12:28 40m -19 / - R6LI -12 / - 2 ✓ Closing observed
10-19 12:25 40m - / - 9A4ZM -16 / - 2 Partial capture
10-19 12:24 40m -18 / - RY9W - / -16 2 ✓ Closing fragment
10-19 12:22 40m -17 / - R6LI - / +8 2 Partial capture
10-19 12:21 40m - / - 9A4ZM -16 / - 2 Partial capture
10-19 12:19 40m -20 / -11 DJ0MAB -13 / -16 6 ✓ Full exchange observed
10-19 12:17 40m -14 / - G8KHF - / -15 3 ✓ Closing fragment
10-12 15:46 40m -4 / - ON4CJU - / - 3 Partial capture
10-12 15:39 40m -9 / - DJ0WO - / - 4 Partial capture
10-12 15:36 40m -12 / - DJ2MS -10 / -8 5 ✓ Closing observed
10-12 15:32 40m - / - R6DZR -4 / - 2 Partial capture
10-12 15:31 40m -10 / -5 GW8PSJ -6 / -10 3 Partial capture
10-12 15:22 40m -12 / - M7CCZ - / -19 5 Partial capture
10-12 15:19 40m - / -14 DK8HC -8 / - 4 ✓ Closing fragment
10-11 18:29 40m - / +2 R1BDX -9 / - 3 ✓ Closing fragment
10-11 18:28 40m - / -12 YL3CW -1 / - 3 ✓ Closing fragment
10-11 18:17 40m -2 / - G3XLF - / - 3 Partial capture
10-11 17:49 40m - / -10 OE7FTI -18 / - 2 Partial capture
10-11 17:47 40m -6 / - AO5CV - / +6 2 Partial capture
10-11 17:35 40m -4 / -12 DH6MD -2 / - 4 ✓ Closing observed
10-11 17:31 40m -7 / - M3WHB - / - 2 Partial capture
10-11 17:29 40m -7 / -8 G7RCQ -13 / +2 5 ✓ Full exchange observed
10-11 17:27 40m -5 / - Z62NS - / - 3 Partial capture
10-11 17:25 40m +2 / -5 IK4RVY -6 / -4 4 ✓ Full exchange observed
10-11 17:23 40m 0 / - PD1GOL - / -9 3 ✓ Closing fragment
10-11 17:21 40m -8 / - LA4ROA - / -18 4 ✓ Closing fragment
10-11 17:01 40m -8 / - IU5TQG -4 / -11 3 ✓ Closing observed
10-11 16:59 40m -13 / - PD7PIN - / -9 2 Partial capture
10-11 16:55 40m -5 / -7 F8MRQ -4 / - 3 ✓ Closing observed
10-11 16:48 40m -4 / - PD2NBE -16 / -7 5 ✓ Closing observed
10-11 16:47 40m -5 / - U1BD -11 / -1 10 ✓ Closing observed
10-11 16:47 40m -5 / - OR1A - / -12 3 ✓ Closing fragment
10-11 16:45 40m -8 / - IR8PR - / -13 4 ✓ Closing fragment
10-11 16:43 40m -6 / - F4MVM - / -9 2 ✓ Closing fragment
10-11 16:43 40m - / - U1BD -10 / - 4 Partial capture
10-11 16:40 40m -14 / - SA3SHN - / -4 4 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
155000  +2 1840  RN6LPC RD3BZ R+00 (x2)
155115 -11 1835  RD3BZ 9A4ZM JN86
155130 -11 1840  R0ADK RD3BZ -06
155245 -11 2691  RD3BZ R9FFJ LO76
155345  -5 1330  RD3BZ R7DX KN84
155345  -3 1894  RD3BZ R2EA/P -14
155445  +1 1330  RD3BZ R7DX KN84
162930 -19 1840  YT1VDA RD3BZ KO85
162945  -9 1645  RD3BZ YT1VDA -04
163000 -19 1840  YT1VDA RD3BZ KO85
163015  -6 1644  RD3BZ YT1VDA -04
163030 -17 1840  YT1VDA RD3BZ KO85
163045  -4 1644  RD3BZ YT1VDA -04
163100 -14 1840  YT1VDA RD3BZ KO85
20m
UTC    dB Audio  Message
140230 -10 1777  2E1HAT RD3BZ KO85

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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