R3LDD — 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: KO63

Receiver-side FT8 activity involving R3LDD, decoded by SO8OO in southeastern Poland. 22 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-14 and 2026-10-17.

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 22 FT8 messages attributed to R3LDD as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (91%), followed by 20 m (9%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

22
Messages attributed
7
UTC dates decoded
8
Active 15-min windows
-13 dB
Estimated median S/N

Bands

First attributed message: 2026-06-14
Last attributed message: 2026-10-17 04:51 UTC

Observed FT8 message patterns

Attributed sample
22 messages
Active dates
7 UTC dates
Estimated median S/N
-13 dB
Estimated 10th-90th percentile
-22 to -1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 6, strong (≥ -8 dB) 7.

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 R3LDD 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 R3LDD

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
KO63 · 13 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
866 km (approx.)
Last such locator decoded
2026-10-17 04:50 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 UTCBandR3LDD S/NCounterpartCounterpart S/NMsgsCapture
10-17 04:51 80m +4 / - DG1YHP - / -15 2 ✓ Closing fragment
10-01 04:46 80m - / -15 LA3BO -1 / - 5 ✓ Closing fragment
09-05 04:21 80m -6 / -1 YO9HP 0 / -14 4 ✓ Full exchange observed
08-16 05:25 20m - / -23 EA3BIC +2 / - 4 Partial capture
08-16 05:25 20m - / - RL6MT -11 / - 8 Partial capture
07-26 05:29 80m -16 / - <...> - / -11 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
042145  -3 1901  R3LDD YO9HP -01
042200 -11 1505  YO9HP R3LDD R-14
042215  +2 1901  R3LDD YO9HP RR73
042230  -1 1504  YO9HP R3LDD 73
043315  -1 1504  CQ R3LDD KO63
043415  -8 1504  R5AV R3LDD 73
044600  +5 2647  R3LDD LA3BO -15 (x5)
045000  -4 1505  CQ R3LDD KO63
045100  +6 1505  DG1YHP R3LDD -15 (x2)
045415  -7 1505  R3LDD DO1OAS JO51
20m
UTC    dB Audio  Message
052530 -13 2571  R3LDD RL6MT LN08
052530  +4 2711  R3LDD EA3BIC R-23
052600 -10 2571  R3LDD RL6MT LN08
052600  +5 2711  R3LDD EA3BIC R-23
052615 -11 1571  RA4CGX R3LDD R-11
052630 -13 2571  R3LDD RL6MT LN08
052630  +0 2711  R3LDD EA3BIC R-23
052645 -13 1571  CQ R3LDD KO63
052700 -14 2571  R3LDD RL6MT LN08 (x2)
052800  +0 2711  R3LDD EA3BIC R-23
052830 -15 1570  R3LDD RN6MA +08
052830  -9 2571  R3LDD RL6MT LN08 (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

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