RD3FY — 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 RD3FY, decoded by SO8OO in southeastern Poland. 13,179 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 68 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-23.

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 13,179 FT8 messages attributed to RD3FY as the transmitting token by decoded message structure across 68 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (92%), followed by 20 m (8%) and 10 m (0%). The busiest six-hour window was 18:00-00:00 UTC, containing 43% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (68%); the estimated median was -5 dB.

Overview

13,179
Messages attributed
68
UTC dates decoded
1,138
Active 15-min windows
-5 dB
Estimated median S/N

Bands

40m · 12,109 20m · 1,025 10m · 45
First attributed message: 2026-06-08
Last attributed message: 2026-10-23 17:10 UTC

Observed FT8 message patterns

Attributed sample
13,179 messages
Active dates
68 UTC dates
Estimated median S/N
-5 dB
Estimated 10th-90th percentile
-15.9 to +5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,344, moderate (-15 to -9 dB) 2,884, strong (≥ -8 dB) 8,951.

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 RD3FY 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 RD3FY

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 · 9,586 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,193 km (approx.)
Last such locator decoded
2026-10-23 17:10 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 UTCBandRD3FY S/NCounterpartCounterpart S/NMsgsCapture
10-23 17:08 40m +2 / - RA3GK - / - 5 Partial capture
10-23 17:05 40m +3 / - R4CGQ - / - 5 Partial capture
10-23 17:02 40m 0 / - R6ZAC - / - 5 Partial capture
10-23 16:59 40m -1 / - RN3YN - / - 5 Partial capture
10-23 16:58 40m -3 / - R6OY +10 / +2 5 ✓ Closing observed
10-23 16:54 40m +2 / - RV6ALM - / -5 6 ✓ Closing fragment
10-23 16:52 40m -1 / - R8KBM - / - 5 Partial capture
10-23 16:49 40m +2 / - RN3DN - / - 5 Partial capture
10-23 16:47 40m +3 / - UA3VVA - / - 5 Partial capture
10-23 16:44 40m -1 / - UA6LIK - / -9 5 ✓ Closing fragment
10-23 16:42 40m 0 / - RA9UES - / - 5 Partial capture
10-23 16:40 40m -2 / - RN6FT - / -10 2 Partial capture
10-23 16:38 40m -3 / - RT2D - / - 5 Partial capture
10-23 16:35 40m 0 / - RM4N - / - 5 Partial capture
10-23 16:32 40m +3 / - RA9FUE - / - 5 Partial capture
10-23 16:30 40m +4 / - R4CI -11 / +4 5 ✓ Closing observed
10-23 16:27 40m +5 / - Z68QQ - / - 4 Partial capture
10-23 16:25 40m +1 / - RA3RQF - / - 5 Partial capture
10-23 16:24 40m +3 / - UA6MO -12 / - 2 ✓ Closing observed
10-23 04:45 40m +2 / - RZ3BP - / - 2 Partial capture
10-23 04:42 40m +9 / -16 PP2FRS -1 / -6 4 ✓ Full exchange observed
10-23 04:39 40m +8 / -17 R6CO -12 / -1 7 ✓ Full exchange observed
10-23 04:36 40m +11 / +7 R6ZX -3 / 0 8 ✓ Full exchange observed
10-23 04:33 40m 0 / - RN6DE - / - 4 Partial capture
10-23 04:30 40m +7 / - RW3XZ - / - 5 Partial capture
10-23 04:28 40m +7 / - RX6AM - / - 5 Partial capture
10-23 04:26 40m +7 / -5 R1YY -2 / +1 5 ✓ Full exchange observed
10-23 04:23 40m +10 / - V47NT - / - 4 Partial capture
10-23 04:22 40m +9 / - YV6BXN - / - 2 Partial capture
10-22 23:55 40m -2 / - IW5ALZ - / -16 3 Partial capture
10-22 22:25 40m - / - EA4HYO -20 / - 2 Partial capture
10-22 22:23 40m - / -12 GI6KDN -18 / - 4 ✓ Closing fragment
10-22 18:11 40m - / -10 EA4D +4 / - 3 ✓ Closing fragment
10-22 17:49 40m +2 / - R6ADW - / - 4 Partial capture
10-22 17:46 40m +5 / - R4GM - / - 5 Partial capture
10-22 17:43 40m +5 / - OV5SP - / - 5 Partial capture
10-22 17:40 40m +7 / - RA9SOZ - / - 5 Partial capture
10-22 17:13 40m +4 / - R4GM - / - 3 Partial capture
10-22 17:10 40m 0 / - EY7BP - / - 4 Partial capture
10-22 17:07 40m +1 / - R9WEI - / - 3 Partial capture
10-22 17:05 40m +2 / - 7Z1AV - / - 5 Partial capture
10-22 17:02 40m -2 / - RU6LC - / - 5 Partial capture
10-22 16:59 40m +4 / - UG0B - / - 3 Partial capture
10-22 16:57 40m -2 / - RA9SOZ - / - 5 Partial capture
10-22 16:32 40m -1 / - RK6OZ - / - 4 Partial capture
10-22 16:29 40m -3 / - RZ6ALZ - / -12 4 ✓ Closing fragment
10-22 16:26 40m -1 / - RW3ZO - / - 4 Partial capture
10-22 16:24 40m -2 / - UK8IF - / - 5 Partial capture
10-22 16:21 40m -1 / - RA9SOZ - / - 5 Partial capture
10-22 16:15 40m -5 / - RM1O -9 / -14 7 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
170230  +3 2884  R6ZAC RD3FY KO85 (x5)
170530  +2 2884  R4CGQ RD3FY KO85 (x5)
170830  +0 2884  RA3GK RD3FY KO85 (x5)
10m 
UTC    dB Audio  Message
103000  +1 2770  CQ RD3FY KO85
103030  +3 2769  RY2B RD3FY KO85 (x4)
103330  -4 2769  TK5AE RD3FY KO85
103630  -5 2770  RW3DKK RD3FY KO85 (x4)
134145 -17 2074  RD3FY 7Z1FF -12
081330 -11  807  RD3FY UB3IBG -02
130815  -8 2716  7Z1BQ RD3FY KO85
131115  -8 2716  RJ3DC RD3FY KO85
144445 -19 1072  RD3FY PY7ZC RR73
60m 
UTC    dB Audio  Message
204500  -1 1430  RD3FY SO3K -21 (x5)
044230  -2 1758  <RD3FY> LZ936BA 73
044230  -7 2262  RD3FY 9A4ZM JN86
80m 
UTC    dB Audio  Message
190400 -11 1837  RD3FY DL9KM JN68
191645 +13 2662  RD3FY 9A4ZM JN86 (x3)
011300  +1 1215  RD3FY DL9KM JN68 (x7)
005715 +13 2877  RD3FY DK7UY JO44 (x4)
20m 
UTC    dB Audio  Message
080330  -5 2688  TA1MB RD3FY KO85 (x2)
080500  -4 2688  DL0MET RD3FY KO85 (x3)
081045  -9 2688  EA6DL RD3FY KO85 (x2)
081215  -8 2688  HB9ACA RD3FY KO85
081445  -8 2689  DO1TSA RD3FY KO85
081715  -4 2688  R0WBN/P RD3FY KO85 (x2)
081845  -4 2688  RM6OS RD3FY R-04
081915  -5 2688  IU6QLJ RD3FY KO85 (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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