RC3LD — 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 RC3LD, decoded by SO8OO in southeastern Poland. 71 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 18 UTC dates in the available aggregate history. Observed between 2026-08-04 and 2026-10-19.

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 71 FT8 messages attributed to RC3LD as the transmitting token by decoded message structure across 18 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (63%), followed by 80 m (18%) and 20 m (18%). Several six-hour UTC windows tied for the largest share (82%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (94%); the estimated median was -22 dB.

Overview

71
Messages attributed
18
UTC dates decoded
33
Active 15-min windows
-22 dB
Estimated median S/N

Bands

80m · 13 40m · 45 20m · 13
First attributed message: 2026-08-04
Last attributed message: 2026-10-19 13:40 UTC

Observed FT8 message patterns

Attributed sample
71 messages
Active dates
18 UTC dates
Estimated median S/N
-22 dB
Estimated 10th-90th percentile
-24 to -16 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 67, moderate (-15 to -9 dB) 3, strong (≥ -8 dB) 1.

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 RC3LD 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 RC3LD

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 · 51 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
866 km (approx.)
Last such locator decoded
2026-10-19 13:40 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 UTCBandRC3LD S/NCounterpartCounterpart S/NMsgsCapture
10-21 16:50 40m - / -2 SM5KNV -1 / - 2 ✓ Closing fragment
10-21 16:44 40m - / -17 YO3YX +1 / - 3 ✓ Closing fragment
10-21 16:37 80m - / -20 YL3NU -14 / - 9 Partial capture
10-19 13:53 40m - / -10 R4ZZ -16 / - 3 ✓ Closing fragment
10-19 13:49 40m - / -7 R6ZL 0 / - 3 ✓ Closing fragment
10-19 13:49 40m - / -14 RK4FAJ -15 / - 2 ✓ Closing fragment
10-19 13:42 40m - / -7 R80SAA +2 / - 2 ✓ Closing fragment
10-19 13:36 40m - / - SM3ULU -22 / - 2 Partial capture
10-15 18:12 80m - / -13 R5AV -3 / - 2 ✓ Closing fragment
10-15 18:12 80m - / - RM5F +3 / - 18 Partial capture
10-15 18:05 80m - / -18 R2WAF -4 / - 4 Partial capture
10-15 18:04 80m - / -15 R5AV -2 / - 2 Partial capture
10-15 18:02 80m - / -8 R1WBW +11 / - 3 ✓ Closing fragment
10-15 18:02 80m - / -24 RM5F -3 / - 11 Partial capture
10-07 17:33 40m -24 / - UA4CSK - / - 2 Partial capture
10-07 13:03 40m - / -20 RA6MQ -19 / - 4 Partial capture
10-07 12:58 40m - / -10 YO9PH +4 / - 2 ✓ Closing fragment
10-07 06:33 40m - / - SM3ULU -22 / - 2 Partial capture
10-07 06:32 40m - / -16 EU1EU -9 / - 3 ✓ Closing fragment
10-06 18:28 80m - / -9 UA1AEL +3 / - 2 ✓ Closing fragment
10-03 20:39 80m - / -13 RA3LBW +4 / - 5 ✓ Closing fragment
09-30 12:57 40m - / -7 UA3GJM -14 / - 2 ✓ Closing fragment
09-29 07:24 40m - / -14 DK7ZT -11 / - 3 Partial capture
09-29 07:20 40m - / -24 SP1MGM -9 / - 5 ✓ Closing fragment
09-29 07:17 40m - / -13 LZ3CB +7 / - 3 ✓ Closing fragment
09-29 07:17 40m - / -13 DK7ZT -3 / - 2 Partial capture
09-27 15:09 40m - / -10 RD3TBQ -14 / - 3 Partial capture
09-23 13:48 40m - / -11 R6KY -9 / - 2 ✓ Closing fragment
09-17 16:24 40m - / -15 R6CW 0 / - 2 Partial capture
09-17 16:19 40m - / -17 UA6ANQ -8 / - 2 ✓ Closing fragment
09-15 06:44 40m - / -17 3Z100PKP +10 / - 2 Partial capture
09-15 06:39 40m - / -21 SN40KZE +16 / - 4 Partial capture
09-15 06:34 40m - / -7 EW6DM -7 / - 2 Partial capture
09-12 06:23 40m - / - DL6UM -1 / - 3 Partial capture
09-12 06:14 40m - / - OZ0A -12 / - 2 Partial capture
09-11 20:03 40m - / -11 LA3ZPA +11 / - 3 Partial capture
09-11 20:00 40m - / -17 YO4GIY -10 / - 2 ✓ Closing fragment
09-11 19:57 40m -21 / -8 R6DZR +2 / - 3 ✓ Closing observed
09-09 06:07 40m - / -11 EU4U +6 / - 2 ✓ Closing fragment
09-09 06:04 40m - / -16 UA3YPS +2 / - 2 ✓ Closing fragment
09-09 05:59 40m - / -12 RK3YWA -12 / - 4 ✓ Closing fragment
09-09 05:55 40m - / -11 R6OBN -14 / - 2 Partial capture
09-09 05:21 40m - / - DH5BM -2 / - 6 Partial capture
09-09 05:20 40m - / -18 DK7ZT 0 / - 2 Partial capture
09-08 16:12 40m - / -12 R7MP -14 / - 2 Partial capture
09-08 16:11 40m - / -25 DK7ZT -7 / - 3 Partial capture
09-08 15:58 40m - / -7 RA6ZS -10 / - 2 Partial capture
09-08 15:57 40m - / - RK4UZ -11 / - 2 Partial capture
09-08 15:56 40m - / -14 DK7ZT -4 / - 3 Partial capture
09-08 15:56 40m - / -17 DL7BO +18 / - 5 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
134230  -1 2388  RC3LD R80SAA RR73
134900 -15 1974  RC3LD RK4FAJ -14
134930  +1  377  RC3LD R6ZL -07 (x3)
135100 -15 1972  RC3LD RK4FAJ RR73
135330 -17 2306  RC3LD R4ZZ -10 (x3)
140100 -22 1899  RC3LD SM3ULU JP81
164445  +5 1624  RC3LD YO3YX -17 (x3)
165045  +3  983  RC3LD SM5KNV -02 (x2)
80m 
UTC    dB Audio  Message
182000  +8  915  RC3LD RM5F KO85 (x3)
055500 -24 1401  RC3LD R2SN -23
163645  +3  740  RC3LD UA3GJM -16
163715 -15 1460  RC3LD YL3NU -20
163715  -3 2637  RC3LD RA3YDA KO62
163745 -13 1460  RC3LD YL3NU -20 (x8)
20m 
UTC    dB Audio  Message
174715 -16 2193  RC3LD 9A3TY -17
174745 +19  765  RC3LD F4HTA -16 (x9)
180115  +1 1513  RC3LD ON1JP -13 (x2)
180415  +2 2402  RC3LD F4NGC IN95 (x3)
10m 
UTC    dB Audio  Message
133130  +0 2245  RC3LD IV3IUM JN65 (x5)

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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