R4FD — 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

Receiver-side FT8 activity involving R4FD, decoded by SO8OO in southeastern Poland. 102 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 8 UTC dates in the available aggregate history. Observed between 2026-09-18 and 2026-10-05.

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 102 FT8 messages attributed to R4FD as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (66%), followed by 80 m (32%) and 160 m (2%). Several six-hour UTC windows tied for the largest share (82%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.

Overview

102
Messages attributed
8
UTC dates decoded
31
Active 15-min windows
-16 dB
Estimated median S/N

Bands

160m · 2 80m · 33 40m · 67
First attributed message: 2026-09-18
Last attributed message: 2026-10-05 04:06 UTC

Observed FT8 message patterns

Attributed sample
102 messages
Active dates
8 UTC dates
Estimated median S/N
-16 dB
Estimated 10th-90th percentile
-24 to -9 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 52, moderate (-15 to -9 dB) 40, strong (≥ -8 dB) 10.

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 R4FD 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.

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 UTCBandR4FD S/NCounterpartCounterpart S/NMsgsCapture
10-05 04:12 40m - / -3 R6OI -11 / - 2 ✓ Closing fragment
10-05 04:06 40m -24 / - IQ9SZ/7 - / -6 2 Partial capture
10-04 19:11 80m - / -16 R3DPZ -5 / - 3 ✓ Closing fragment
10-04 16:58 40m -21 / -10 HA7TM +9 / - 5 ✓ Closing observed
10-04 16:57 40m - / -4 RK6MC -4 / - 3 ✓ Closing fragment
10-04 16:51 40m - / 0 EX7CQ -16 / - 2 ✓ Closing fragment
10-04 04:43 40m -20 / - RO2E/P -11 / - 2 Partial capture
09-30 18:02 80m - / -7 R3DCX -7 / - 2 ✓ Closing fragment
09-30 17:57 80m - / -15 R7HL 0 / - 2 ✓ Closing fragment
09-30 17:49 80m -22 / -5 R3DCX +3 / - 3 Partial capture
09-30 16:22 40m -14 / - R0ADK - / -7 4 Partial capture
09-30 16:21 40m - / -17 RK4FF -9 / - 3 Partial capture
09-30 16:20 40m -12 / +9 RA3WEO +1 / -11 4 ✓ Full exchange observed
09-30 16:18 40m -16 / - R9FGJ - / -18 3 ✓ Closing fragment
09-30 16:17 40m -15 / - RA5AD -7 / +1 3 ✓ Closing observed
09-30 16:15 40m -13 / - DL/PA2RO - / -2 2 Partial capture
09-30 16:13 40m -14 / - RA9FRD - / -9 2 ✓ Closing fragment
09-30 16:11 40m -14 / - RG6ZF -12 / -3 4 ✓ Full exchange observed
09-30 16:08 40m -17 / - RC6YI - / -21 3 ✓ Closing fragment
09-30 16:07 40m -13 / - RA3ZOM -4 / -3 4 ✓ Closing observed
09-30 16:02 40m -18 / -9 R2FBW -14 / +7 8 ✓ Full exchange observed
09-30 16:02 40m -14 / -2 UA6BGM 0 / -2 3 ✓ Full exchange observed
09-30 16:01 40m -15 / 0 RA6YDX -3 / +7 4 ✓ Full exchange observed
09-30 16:00 40m -14 / - RA3ZOM - / +5 2 Partial capture
09-30 15:59 40m -17 / +3 RX7O +4 / - 4 ✓ Full exchange observed
09-27 20:37 40m -15 / - RD0L - / -11 2 Partial capture
09-27 20:32 80m -8 / -8 R3YCJ -2 / -5 3 ✓ Full exchange observed
09-27 20:14 80m -11 / -10 RY7F -16 / -17 4 ✓ Full exchange observed
09-27 20:13 80m - / -3 RA3WY 0 / - 2 ✓ Closing fragment
09-27 20:10 80m -12 / -12 R2EA/P -6 / - 3 ✓ Closing observed
09-27 18:21 80m -13 / -19 RX6AOB +1 / +1 3 ✓ Full exchange observed
09-27 18:19 80m -12 / +1 EW6BZ +4 / +1 3 ✓ Full exchange observed
09-27 18:13 80m -21 / - R4HNW - / +3 3 ✓ Closing fragment
09-27 18:12 80m - / -11 RC9WC -6 / - 2 ✓ Closing fragment
09-27 18:11 80m - / -12 R3BDQ +2 / - 2 ✓ Closing fragment
09-27 18:07 80m - / -23 EU1FQ +6 / - 3 ✓ Closing fragment
09-27 17:59 80m -24 / - RV3X - / +9 2 Partial capture
09-27 17:58 80m - / -6 R3DQT -8 / - 4 Partial capture
09-27 17:54 80m - / -7 RA3M -8 / - 2 ✓ Closing fragment
09-27 17:42 40m -21 / 0 RA6OB +2 / - 2 Partial capture
09-27 17:41 40m -24 / 0 UA1WCF -16 / - 3 ✓ Full exchange observed
09-27 17:03 40m - / -1 R7DX -2 / - 5 ✓ Closing fragment
09-27 16:59 40m - / - R2YW -6 / - 2 ✓ Closing fragment
09-27 16:55 40m - / -8 RD3FY -5 / - 3 ✓ Closing fragment
09-27 16:54 40m - / - PE1NPS -1 / - 3 Partial capture
09-26 21:04 80m - / -13 EU1AFX +4 / - 2 Partial capture
09-26 21:03 80m -22 / - R2BRU - / - 2 Partial capture
09-26 21:01 80m - / +1 R3EEE -4 / - 2 ✓ Closing fragment
09-26 20:52 80m -24 / - HA7VC/P - / +5 2 Partial capture
09-26 20:49 80m - / -18 RO6OP +4 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
165130 -15 1533  R4FD EX7CQ RR73
165330 -18 1101  R4FD UA3SCU 73
165700 -13 2589  R4FD UA9ZZ 73
165700 -10 1572  R4FD RK6MC KN97 (x3)
165830  +0 1939  R4FD HA7TM JN97 (x4)
170015 -21 1939  HA7TM R4FD RR73
040615 -24 1657  IQ9SZ/7 R4FD -06 (x2)
041245 -10 1558  R4FD R6OI R-03 (x2)
80m 
UTC    dB Audio  Message
175030  +3 1159  R4FD R3DCX R-05
175230 -14 1254  R4FD R3XBV R-07
175700  +0 2291  R4FD R7HL R-15 (x2)
175845 -24 1988  R4HKO R4FD RR73
180130  -3 1011  R4FD RA3ZOM R-09
180230 -10 1159  R4FD R3DCX R-07 (x2)
190530 -17 2311  R4FD UA4AGU R-09
191145  -4 1041  R4FD R3DPZ KO95 (x3)
192500 -21 1535  R4FD R3SN 73
192530  -7 1672  R4FD DL9KM JN68
192615 -17 1718  UN0GY R4FD -08
160m 
UTC    dB Audio  Message
010815 -11 2019  RI1FJZ R4FD -10
010830  -6 1007  R4FD RI1FJZ R+00
010845  -8 2019  RI1FJZ R4FD RR73
010900 +11  470  R4FD RM5F KO85
010900 -12 1007  R4FD RI1FJZ RR73
011000  -4 2850  R4FD OH6IH KP13

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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