RN3ZBX — 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: KO90

Receiver-side FT8 activity involving RN3ZBX, decoded by SO8OO in southeastern Poland. 2,779 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 97 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-11-05.

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 2,779 FT8 messages attributed to RN3ZBX as the transmitting token by decoded message structure across 97 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (63%), followed by 20 m (28%) and 80 m (7%). Most decodes (66%) fell within the six-hour window 14:00-20:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.

Overview

2,779
Messages attributed
97
UTC dates decoded
445
Active 15-min windows
-7 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-11-05 19:08 UTC

Observed FT8 message patterns

Attributed sample
2,779 messages
Active dates
97 UTC dates
Estimated median S/N
-7 dB
Estimated 10th-90th percentile
-17.6 to +6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 429, moderate (-15 to -9 dB) 793, strong (≥ -8 dB) 1,557.

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 RN3ZBX

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
KO90 · 1,218 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,223 km (approx.)
Last such locator decoded
2026-11-05 19:06 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 UTCBandRN3ZBX S/NCounterpartCounterpart S/NMsgsCapture
11-05 19:05 40m -7 / -9 ON6OM -16 / -23 6 Partial capture
11-05 18:59 40m - / -18 DL1BBO -6 / - 2 Partial capture
11-05 18:54 40m -22 / - M0IEP - / -18 2 ✓ Closing fragment
11-05 18:52 40m -20 / -6 SV1PLJ -6 / -15 3 Partial capture
11-05 18:49 40m -19 / - IU7TCY - / - 3 Partial capture
11-05 18:05 40m - / -4 RA3LBW -15 / - 2 ✓ Closing fragment
11-05 17:55 40m -20 / - RC1C -18 / -14 4 ✓ Closing observed
11-05 17:51 40m -22 / - M8KUU - / - 3 Partial capture
11-01 12:19 40m -7 / +5 RA3RGQ -20 / +6 5 ✓ Full exchange observed
11-01 12:17 40m -4 / - EW6GB/P - / - 2 Partial capture
11-01 06:37 40m -9 / - R1ZH - / - 5 Partial capture
11-01 06:02 40m -8 / - YO1BRANCUSI - / - 4 Partial capture
10-31 17:31 40m - / -5 M0IEP -16 / - 2 Partial capture
10-31 17:28 40m -22 / - RN6LPC -18 / - 3 ✓ Closing observed
10-31 17:22 40m -14 / - OE8XRK - / - 2 ✓ Closing fragment
10-31 17:12 80m - / -6 RW1C +6 / - 2 ✓ Closing fragment
10-31 17:04 80m - / - 9A4ZM +6 / - 2 Partial capture
10-31 17:02 80m - / +3 RZ4M -18 / - 2 Partial capture
10-31 17:01 80m - / - DO1MDO 0 / - 5 Partial capture
10-31 17:00 80m -7 / - RJ3DC - / -8 3 ✓ Closing fragment
10-31 04:39 40m +3 / - DL8TV - / -24 5 ✓ Closing fragment
10-31 04:37 40m -2 / - PA2HD - / - 2 Partial capture
10-31 04:35 40m +4 / - R8CEL - / -13 4 Partial capture
10-30 18:36 80m -4 / - R3EDI -8 / -3 2 Partial capture
10-30 18:34 80m -4 / - R2BPS - / -19 3 ✓ Closing fragment
10-30 18:24 80m -5 / - UB3ADO/P - / -21 14 Partial capture
10-30 18:20 80m -6 / - UB3ADO/P - / - 3 Partial capture
10-30 18:12 40m +4 / - F5OYA/P - / -6 5 Partial capture
10-30 18:06 40m +5 / - F5OYA/P - / - 4 Partial capture
10-30 18:02 40m -1 / - DJ2DL/QRP - / - 5 Partial capture
10-30 16:03 40m 0 / - RA6MQ/P - / - 3 Partial capture
10-30 15:58 40m +5 / - RA6MQ/P - / - 3 Partial capture
10-30 15:56 40m -4 / - F5OYA/P - / - 2 Partial capture
10-30 15:22 40m -10 / - F5OYA/P - / -23 4 Partial capture
10-30 14:54 40m - / -10 RA8CO -14 / - 3 ✓ Closing fragment
10-30 14:40 40m - / - SP9OJ -3 / - 12 Partial capture
10-30 14:36 40m - / - SP9OJ -5 / - 4 Partial capture
10-30 14:34 40m -13 / - EX8BT - / -9 3 ✓ Closing fragment
10-30 14:33 40m -17 / - R3DFC - / -4 2 ✓ Closing fragment
10-28 15:46 40m -3 / - R2FBW - / -12 3 ✓ Closing fragment
10-28 15:44 40m +2 / - RN6AK - / -20 2 ✓ Closing fragment
10-27 13:15 40m -13 / - R9OFA - / -17 2 Partial capture
10-25 04:28 40m -7 / -2 F5MXH -23 / -14 3 Partial capture
10-25 04:27 40m -8 / - DM8KM - / - 2 ✓ Closing fragment
10-25 04:26 40m - / - SP1ZMO -6 / - 2 Partial capture
10-25 04:25 40m -4 / - EU7FBB - / +3 3 ✓ Closing fragment
10-25 04:23 40m -2 / - IU8RFW - / -15 2 ✓ Closing fragment
10-25 04:22 40m -2 / - UB3DSR -19 / -5 3 ✓ Closing observed
10-25 04:17 40m +1 / - R4ADJ - / -18 3 ✓ Closing fragment
10-24 03:46 40m - / -11 G1LQT -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
185030 -20 1692  IU7TCY RN3ZBX KO90
185215 -23 1691  SV1PLJ RN3ZBX KO90
185230  -6 1141  RN3ZBX SV1PLJ -06
185245 -18 1691  SV1PLJ RN3ZBX R-15
185445 -20 1692  M0IEP RN3ZBX -18 (x2)
185530  -9 1877  RN3ZBX F4FSY -10
185900  -7 2834  RN3ZBX DL1BBO JO43 (x2)
190500  -8  670  ON6OM RN3ZBX KO90 (x2)
190545 -16 1170  RN3ZBX ON6OM -09
190600  -8  669  ON6OM RN3ZBX KO90 (x3)
80m
UTC    dB Audio  Message
170100  -2 1978  RN3ZBX DO1MDO JO50
170115  -5 1733  RJ3DC RN3ZBX -08
170130  -3 1978  RN3ZBX DO1MDO JO50
170145 -12 1732  RJ3DC RN3ZBX RR73
170200 -17 1647  RN3ZBX RZ4M LO44
170200  +2 1978  RN3ZBX DO1MDO JO50 (x2)
170300 -20 1647  RN3ZBX RZ4M R+03
170300  -1 1978  RN3ZBX DO1MDO JO50
170400  -8  999  RN3ZBX R3MBV R-02
170430  +7 1728  RN3ZBX 9A4ZM JN86 (x2)
171215  +5 1292  RN3ZBX RW1C -06 (x2)
171315 -14 1999  RN3ZBX R1BED -03
10m
UTC    dB Audio  Message
083430 -20 1167  RN3ZBX S9R +00
20m
UTC    dB Audio  Message
174800 -17 1915  RN3ZBX OE8RPK JN76 (x3)
082745  -8 1372  M0XCZ RN3ZBX KO90 (x2)
082945  +1 1372  RA9YTI RN3ZBX KO90 (x3)
083100  -9 1512  RN3ZBX RW9WJ LO84
083115  -5 1372  RA9YTI RN3ZBX 73
083130 -10 1512  RN3ZBX RW9WJ LO84 (x2)
083215  -5 1372  RW9WJ RN3ZBX RR73
083230 -12 1512  RN3ZBX RW9WJ 73
083315  -8 1372  9A5JU RN3ZBX KO90

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