RA3XFR — 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: KO84

Receiver-side FT8 activity involving RA3XFR, decoded by SO8OO in southeastern Poland. 788 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 43 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-22.

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 788 FT8 messages attributed to RA3XFR as the transmitting token by decoded message structure across 43 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (41%), followed by 20 m (32%) and 80 m (26%). Most decodes (79%) fell within the six-hour window 14:00-20:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

788
Messages attributed
43
UTC dates decoded
158
Active 15-min windows
-11 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-10-22 15:12 UTC

Observed FT8 message patterns

Attributed sample
788 messages
Active dates
43 UTC dates
Estimated median S/N
-11 dB
Estimated 10th-90th percentile
-18.1 to +1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 200, moderate (-15 to -9 dB) 261, strong (≥ -8 dB) 327.

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.

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 RA3XFR

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
KO84
SO8OO receiver locator
KN09VW
Locator-centre separation
1,150 km (approx.)
Last such locator decoded
2026-10-05 15:34 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 UTCBandRA3XFR S/NCounterpartCounterpart S/NMsgsCapture
10-22 15:12 40m -14 / -7 DJ8EW +8 / -7 2 Partial capture
10-22 15:09 40m -16 / - JR6EZE -10 / -2 2 ✓ Closing observed
10-22 15:05 40m -12 / -17 LB8TG -18 / -8 4 ✓ Full exchange observed
10-22 15:03 40m -13 / -2 DG1HBA +1 / - 3 ✓ Closing observed
10-22 14:37 40m -14 / - ES6DO - / +5 2 Partial capture
10-22 14:32 40m -11 / - JA5NSR - / -14 2 ✓ Closing fragment
10-22 14:29 40m -10 / -1 R1QF/P -12 / +3 3 ✓ Full exchange observed
10-22 14:24 40m -12 / - ES6DO - / -3 2 Partial capture
10-22 14:23 40m -12 / - R1BRY -17 / - 2 ✓ Closing observed
10-17 16:26 40m -1 / -4 G8KHF -9 / -2 4 ✓ Full exchange observed
10-14 16:17 40m -4 / - R4HGK - / -3 4 ✓ Closing fragment
10-14 16:10 40m -8 / - R7ZY +6 / - 2 ✓ Closing observed
10-14 15:57 40m -5 / - UB2FEH - / -14 2 ✓ Closing fragment
10-14 15:56 40m -8 / +10 OH3GBW -14 / - 3 ✓ Closing observed
10-12 16:35 40m -9 / - R4LBG -13 / 0 2 ✓ Closing observed
10-12 16:34 40m -10 / - R9XAC - / -10 2 Partial capture
10-12 16:26 40m -8 / -13 5P1KZX -11 / -8 4 ✓ Full exchange observed
10-12 16:25 40m - / -14 R1BOY -10 / - 2 ✓ Closing fragment
10-12 16:21 40m -6 / - SM2LIY - / -2 2 ✓ Closing fragment
10-11 18:29 40m -10 / - R1FZ -13 / -3 3 ✓ Closing observed
10-11 18:24 40m -8 / - DL9KM -11 / -16 6 Partial capture
10-11 18:23 40m -8 / - SP4GDW - / -7 2 ✓ Closing fragment
10-11 18:22 40m -10 / - SP7OK - / -3 2 Partial capture
10-11 18:20 40m -10 / - OH3SW - / -14 2 Partial capture
10-11 16:58 40m -11 / +1 LY4AB +10 / -7 4 ✓ Full exchange observed
10-11 16:51 40m -8 / - RW4HRE - / -15 2 Partial capture
10-11 16:48 40m -10 / -7 R3NBL -14 / 0 4 ✓ Full exchange observed
10-11 16:48 40m - / - EA3HMM -4 / - 4 Partial capture
10-11 16:47 40m -6 / - RA4FEQ - / +2 2 ✓ Closing fragment
10-07 15:45 40m -6 / - R2FL +3 / -5 3 ✓ Closing observed
10-05 16:00 40m -6 / -8 RA6LO -9 / -1 3 ✓ Full exchange observed
10-05 15:56 40m -9 / +1 RA1WU -4 / -4 5 ✓ Full exchange observed
10-05 15:54 40m -11 / - YL3CW -13 / - 2 ✓ Closing observed
10-05 15:51 40m -12 / -9 OI7AX -12 / -7 4 ✓ Full exchange observed
10-05 15:35 40m - / - SP3HIF -14 / - 2 Partial capture
10-05 15:35 40m - / -9 SP7TF -9 / - 2 ✓ Closing fragment
10-05 15:33 40m -16 / - RK4FD - / 0 2 Partial capture
10-04 18:56 40m - / -18 OE5KBO 0 / - 2 ✓ Closing fragment
10-04 18:41 80m -4 / - RA4APF - / -18 2 ✓ Closing fragment
10-04 18:38 80m -10 / - RV3YN - / -21 2 ✓ Closing fragment
10-04 18:37 80m -8 / - EW6PG -3 / -10 3 ✓ Closing observed
10-04 18:34 80m -4 / +2 UA4WCS -7 / -7 6 ✓ Full exchange observed
10-04 18:32 80m -2 / -12 EU7X +3 / -13 5 ✓ Full exchange observed
10-04 18:21 80m -2 / +4 R2FEA +6 / -16 5 ✓ Full exchange observed
10-04 18:17 80m -8 / - R6LNH -10 / -12 4 ✓ Closing observed
10-04 18:15 80m -2 / - R1IV - / -10 2 ✓ Closing fragment
09-20 17:30 80m - / - DO8JB -10 / - 14 Partial capture
09-20 17:22 80m -4 / - RI1FJZ - / -19 12 ✓ Closing fragment
09-20 17:20 80m -7 / - DL7VEE - / -6 2 Partial capture
09-20 17:16 80m 0 / - R2DP - / -4 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
143745 -13 1249  ES6DO RA3XFR +05 (x2)
150330  -3 1427  RA3XFR DG1HBA R-02
150345 -13 1197  DG1HBA RA3XFR RR73
150400  +5 1427  RA3XFR DG1HBA 73
150515 -14 1198  LB8TG RA3XFR -08
150545 -14 1197  JR6EZE RA3XFR -08
150600 -17 1911  RA3XFR LB8TG R-17 (x2)
150645 -10 1198  LB8TG RA3XFR RR73
150800 -10 1197  OZ4VW RA3XFR -13
150930 -16 1198  JR6EZE RA3XFR -02
151015 -10  384  RA3XFR JR6EZE 73
151230 -14 1197  DJ8EW RA3XFR -07
151315  +8 2833  RA3XFR DJ8EW R-07
10m
UTC    dB Audio  Message
130230 -21 1810  RA3XFR SV5BYP R-14 (x2)
102500  -6 2559  RA3XFR DK3UA 73
104915  -5 2736  RA3XFR F1PBZ R-08
80m
UTC    dB Audio  Message
183445  -7 1305  UA4WCS RA3XFR -07
183530  -4 1305  RA3XFR UA4WCS R+02 (x2)
183615  -6 1306  UA4WCS RA3XFR RR73
183630  -6 1305  RA3XFR UA4WCS 73
183645  +1 1305  UA4WCS RA3XFR RR73
183700 -11 1305  EW6PG RA3XFR -10 (x2)
183745  -3 2016  RA3XFR EW6PG 73
183800  -6 1305  RV3YN RA3XFR -21 (x2)
184115  -3 1306  RA4APF RA3XFR -18 (x2)
184500  -7 1306  YO2UKG RA3XFR RR73
184800 -11 1306  UA3IDQ RA3XFR -08
20m
UTC    dB Audio  Message
165430  +0  826  ON4MGV RA3XFR -09 (x2)
165530  +1  826  OZ7CL RA3XFR +00
165545  +0 2104  RA3XFR ON4MGV R+00
165600  +4  826  OZ7CL RA3XFR RR73
165615 -13  584  RA3XFR OZ7CL 73
165715  -2  826  M7VME RA3XFR -11
165800  -5 2662  RA3XFR M7VME R+06
165815  +6  826  M7VME RA3XFR RR73
165830  -6 2662  RA3XFR M7VME 73
170100  -5  826  IK8TMF RA3XFR -07
170215  +2  826  RN4AZ RA3XFR -10
170345  +2  826  YO2LIM RA3XFR -05 (x2)
170515  +4  826  A41KB RA3XFR -04

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

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee