R3DFC — 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: KO95

Receiver-side FT8 activity involving R3DFC, decoded by SO8OO in southeastern Poland. 878 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 40 UTC dates in the available aggregate history. Observed between 2026-06-06 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 878 FT8 messages attributed to R3DFC as the transmitting token by decoded message structure across 40 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (67%), followed by 20 m (29%) and 10 m (5%). Most decodes (69%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

878
Messages attributed
40
UTC dates decoded
138
Active 15-min windows
-10 dB
Estimated median S/N

Bands

40m · 584 20m · 253 10m · 41
First attributed message: 2026-06-06
Last attributed message: 2026-10-23 17:07 UTC

Observed FT8 message patterns

Attributed sample
878 messages
Active dates
40 UTC dates
Estimated median S/N
-10 dB
Estimated 10th-90th percentile
-18 to -1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 176, moderate (-15 to -9 dB) 324, strong (≥ -8 dB) 378.

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 R3DFC 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 R3DFC

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
KO95 · 507 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,309 km (approx.)
Last such locator decoded
2026-10-23 17:07 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 UTCBandR3DFC S/NCounterpartCounterpart S/NMsgsCapture
10-23 19:41 80m - / -16 R7CD -8 / - 3 Partial capture
10-23 17:06 40m -6 / - R1BPW - / - 2 Partial capture
10-23 16:57 40m -14 / - EV1R - / - 2 Partial capture
10-23 16:54 40m -20 / -7 ON7GB +8 / -2 5 ✓ Full exchange observed
10-23 15:46 40m - / +4 OH3MB +2 / - 2 ✓ Closing fragment
10-23 15:43 40m -12 / -5 SV8DCY -2 / - 4 ✓ Full exchange observed
10-18 05:48 40m -15 / - YV5KG - / - 3 Partial capture
10-17 19:18 80m - / -19 UB1AXF -3 / - 2 ✓ Closing fragment
10-17 18:57 40m -20 / - TA2VUZ - / -15 2 ✓ Closing fragment
10-17 17:58 40m - / -4 RA6FCU -2 / - 3 ✓ Closing fragment
10-17 17:57 40m -20 / - RW6B -20 / -2 2 Partial capture
10-17 17:54 40m - / -14 YO3GJE -16 / - 4 ✓ Closing fragment
10-17 17:31 80m - / -14 RG3M +6 / - 2 Partial capture
10-17 17:25 80m - / - RK4UZ -18 / - 2 Partial capture
10-17 16:59 40m -11 / - RD0L - / - 3 Partial capture
10-17 16:53 40m -10 / - UA9LKL - / -12 4 ✓ Closing fragment
10-17 05:05 40m - / -11 OK3MB -12 / - 2 Partial capture
10-16 19:53 40m - / -21 HB9ELE +2 / - 2 Partial capture
10-16 19:50 40m - / -11 F1IQH -6 / - 7 ✓ Closing fragment
10-10 18:22 80m - / -21 UA3UBV -9 / - 3 Partial capture
10-10 17:15 40m -12 / - R1OAC -24 / -13 5 ✓ Closing observed
10-10 16:43 40m -8 / -15 R1OAC -19 / - 4 Partial capture
10-10 16:41 40m -5 / -3 RM7M -17 / -4 4 ✓ Full exchange observed
10-10 16:40 40m -9 / +4 IU2THY +7 / -9 3 ✓ Full exchange observed
10-10 16:38 40m - / -14 IK0BAL -1 / - 2 ✓ Closing fragment
10-09 18:03 40m - / -9 UC6D -5 / - 3 ✓ Closing fragment
10-03 16:45 40m -1 / - UA4COA -10 / - 2 ✓ Closing observed
09-25 20:30 40m -12 / -9 R6LNX -20 / -7 4 ✓ Full exchange observed
09-25 20:29 40m -13 / - UA2KU - / -6 2 ✓ Closing fragment
09-25 20:25 40m -13 / - UC6W - / - 2 Partial capture
09-12 19:27 40m -4 / - R4HOH - / - 3 Partial capture
09-12 19:24 40m -8 / - UA0JCG - / - 2 Partial capture
09-12 15:25 40m -7 / - RT9YO - / -10 3 ✓ Closing fragment
09-12 15:22 40m - / -1 EW8KO -2 / - 2 ✓ Closing fragment
09-12 15:21 40m - / -2 UB3LBU -10 / - 2 ✓ Closing fragment
09-12 15:18 40m -4 / - RX9WM - / -7 2 ✓ Closing fragment
09-12 15:13 40m -7 / +2 R4PEQ -7 / +5 2 Partial capture
09-12 15:08 40m -8 / -2 R4PEQ -4 / +1 5 Partial capture
09-12 15:06 40m -6 / -14 ON4JMV -12 / -15 9 ✓ Full exchange observed
09-12 15:03 40m -5 / - RA0WBW - / -17 5 Partial capture
09-11 19:32 40m -11 / - DG1ROL +12 / -12 2 Partial capture
09-11 19:31 40m -15 / - LY2BSW - / -15 2 ✓ Closing fragment
09-11 19:24 40m - / - PD1AQL -11 / - 2 Partial capture
09-04 18:39 40m -3 / - RI1FJL - / -7 3 ✓ Closing fragment
09-04 17:33 40m -7 / -14 R2BRU -3 / -8 6 ✓ Full exchange observed
08-28 19:48 40m -11 / - AP2N - / -18 3 ✓ Closing fragment
08-28 19:47 40m -8 / -18 RX7KIR -2 / -9 3 Partial capture
08-28 19:44 40m -6 / - PA1PXL -9 / - 2 ✓ Closing observed
08-28 19:44 40m -9 / -6 R6OU +2 / -6 5 ✓ Full exchange observed
08-28 19:23 40m - / -2 PI4TX -10 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
190300  -2 1139  R3DFC RM5F 73
190330  -7 1904  R3DFC R6ML LN17
182045 -18 1871  R3DFC RN3TT -14
182215  -8 2293  R3DFC UA3UBV LO07 (x3)
172515 -17 1602  R3DFC RK4UZ LO24 (x2)
173115  +4  347  R3DFC RG3M R-14 (x2)
191815  -2 2063  R3DFC UB1AXF -19 (x2)
194115 -10 1941  R3DFC R7CD -16 (x3)
40m 
UTC    dB Audio  Message
165130 -17 2019  CQ R3DFC KO95 (x2)
165300 -17 2019  UA9UIS R3DFC RR73
165330 -18 2019  CQ R3DFC KO95
165415  +5  719  R3DFC ON7GB JO21
165430 -20 2019  ON7GB R3DFC -02
165445  +9  719  R3DFC ON7GB R-07
165500 -20 2019  ON7GB R3DFC RR73
165515 +10  719  R3DFC ON7GB 73
165730 -15 2019  EV1R R3DFC KO95 (x2)
170030 -17 2019  M0SCK R3DFC -13
170600  -7  591  CQ R3DFC KO95
170630  -6  591  R1BPW R3DFC KO95 (x2)
20m 
UTC    dB Audio  Message
132615 -17 1316  R3DFC LA1SNA 73
132630  +4 1276  JI3DMI R3DFC -12
132800  +4 1276  CQ R3DFC KO95 (x3)
132930 +10 1276  BD6JN R3DFC -10 (x2)
133030  +9 1276  CQ R3DFC KO95 (x4)
133230 -11 1276  BH4THI R3DFC KO95 (x4)
10m 
UTC    dB Audio  Message
082130  -4 1841  R3DFC RN6MA +19 (x2)

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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