R3XBS — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO74

Receiver-side FT8 activity involving R3XBS, decoded by SO8OO in southeastern Poland. 3,959 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 108 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-07.

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 3,959 FT8 messages attributed to R3XBS as the transmitting token by decoded message structure across 108 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (64%), followed by 80 m (19%) and 20 m (9%). Most decodes (54%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

3,959
Messages attributed
108
UTC dates decoded
556
Active 15-min windows
-8 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-10-07 18:10 UTC

Observed FT8 message patterns

Attributed sample
3,959 messages
Active dates
108 UTC dates
Estimated median S/N
-8 dB
Estimated 10th-90th percentile
-16.6 to +3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 554, moderate (-15 to -9 dB) 1,376, strong (≥ -8 dB) 2,029.

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 R3XBS

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
KO74 · 1,791 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,031 km (approx.)
Last such locator decoded
2026-10-07 18:10 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 UTCBandR3XBS S/NCounterpartCounterpart S/NMsgsCapture
10-07 18:07 40m - / -11 PH2M -4 / - 3 ✓ Closing fragment
10-07 18:04 40m -4 / - M6ILA - / - 2 Partial capture
10-07 17:58 40m +1 / -7 M1DBB -9 / -15 5 ✓ Full exchange observed
10-07 17:56 40m 0 / - R6AEB - / -13 2 ✓ Closing fragment
10-05 18:57 40m - / -8 TA3NK -10 / - 3 ✓ Closing fragment
10-05 18:55 40m -17 / -11 EA1KCN -4 / -9 4 ✓ Full exchange observed
10-05 18:51 40m -2 / - LA4XKA - / -12 4 Partial capture
10-05 18:49 40m -1 / - M7HQE - / -16 3 ✓ Closing fragment
10-05 17:51 40m -7 / - ON4CFC -5 / -16 4 ✓ Closing observed
10-05 17:50 40m -6 / - IK4ZII - / -17 2 ✓ Closing fragment
10-05 17:32 40m -14 / - SP8PLC - / - 2 Partial capture
10-05 17:30 40m -7 / - M0PJE/P - / -17 3 ✓ Closing fragment
10-05 17:28 40m -4 / - BH3HAC - / -19 3 Partial capture
10-05 17:26 40m -1 / - BG0KD - / - 2 Partial capture
10-05 17:25 40m +2 / - RK6OU - / -11 2 Partial capture
10-05 17:23 40m -2 / - 5Q1X - / -20 2 ✓ Closing fragment
10-05 17:21 40m -3 / -5 UC6D -5 / - 4 ✓ Closing observed
10-05 17:19 40m -7 / - G7TPR -13 / -14 3 ✓ Closing observed
10-04 17:10 40m -8 / - R9TT - / - 2 Partial capture
10-04 17:08 60m - / - DG0BS +1 / - 3 Partial capture
10-04 17:07 40m -12 / - IU6UBB - / -21 4 ✓ Closing fragment
10-04 17:05 40m - / -4 RN6HGI 0 / - 3 ✓ Closing fragment
10-04 17:02 40m -6 / -13 ER1MM -10 / -15 5 ✓ Full exchange observed
10-04 15:45 40m - / -7 RX3ASP -6 / - 2 ✓ Closing fragment
10-04 15:44 40m -6 / -8 OE3MJA -1 / -14 3 ✓ Full exchange observed
10-04 15:40 40m -3 / - G4FPS - / - 2 Partial capture
10-04 13:39 40m -10 / - RJ6OW - / -8 2 ✓ Closing fragment
10-03 16:17 80m -12 / - UB0SMX/P - / -5 2 Partial capture
10-02 18:41 40m -12 / - JI1IZS - / -19 2 Partial capture
10-02 17:58 40m -4 / - IQ0AAX - / -18 2 ✓ Closing fragment
10-02 17:56 40m -3 / -8 IV3XPP -6 / -12 5 ✓ Full exchange observed
10-02 17:54 40m 0 / - JR1JUR - / -15 2 ✓ Closing fragment
10-02 17:52 40m -8 / - OK8UQ - / -1 2 Partial capture
10-02 17:51 40m -5 / - RM8CZ - / - 2 Partial capture
10-02 01:45 40m - / -15 N1LLW -12 / - 2 ✓ Closing fragment
10-01 19:10 40m -4 / -5 DF0TWN -7 / -22 7 ✓ Full exchange observed
10-01 19:07 40m 0 / - R6ABO - / - 3 Partial capture
10-01 18:31 40m -8 / +7 SX2LGT +3 / - 3 ✓ Closing observed
10-01 18:28 40m -14 / - DL1NCH - / - 2 Partial capture
10-01 18:26 40m 0 / - OZ6HQ - / - 2 Partial capture
10-01 18:21 40m -4 / - TA2TDW - / -21 2 ✓ Closing fragment
10-01 18:18 40m -4 / - SP9RQD - / - 2 Partial capture
10-01 18:17 40m -2 / - OZ9DKJ - / -15 2 Partial capture
10-01 18:16 40m -9 / -10 DK1HSI +6 / -24 4 ✓ Full exchange observed
10-01 18:13 40m -8 / - YO8SGC - / -22 3 Partial capture
10-01 18:12 40m -12 / - SQ4KBF - / -14 3 ✓ Closing fragment
10-01 16:41 40m -4 / - DL7KI - / -11 2 Partial capture
09-29 20:20 40m -8 / - JL1IHE - / -15 2 Partial capture
09-29 20:16 40m -10 / - IZ8GUU - / -13 3 ✓ Closing fragment
09-29 20:15 40m -2 / - 9A5AVL - / - 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
034145 -22 1668  C5R R3XBS -17
175645  +5 1142  R6AEB R3XBS -13 (x2)
175815  +3 1142  M1DBB R3XBS -15 (x2)
175900 -11 2475  R3XBS M1DBB R-07
175915  -3 1142  M1DBB R3XBS RR73
175930  -7 2475  R3XBS M1DBB 73
180400  -2 1142  M6ILA R3XBS KO74 (x2)
180530  +2 1142  SP9RQD R3XBS KO74
180700  -4  582  R3XBS PH2M -11 (x3)
181015  +1 1142  UB8SII R3XBS KO74
60m
UTC    dB Audio  Message
170800  +2 1676  R3XBS DG0BS JO60 (x3)
80m
UTC    dB Audio  Message
221530  -1 2195  DO8JB R3XBS KO74
185645  -5 1217  M0KEE R3XBS -16 (x2)
190330 -13  203  R3XBS SQ2BXI 73
190830  -8 1113  R3XBS RY3PAG +02 (x2)
190915  -6 2176  RY3PAG R3XBS 73
191015  -2 2176  DA6BR R3XBS -16
191045  +0 2176  DL4ALI R3XBS -11
191245 -13 2176  DA6BR R3XBS R-16
191300 -13 1568  R3XBS DA6BR RR73
191400 +11 1291  R3XBS SP5ALV R+03
161700 -14 2067  UB0SMX/P R3XBS -05 (x2)
161830 -12 2017  R3UCC/QRP R3XBS -05
20m
UTC    dB Audio  Message
105315  -2 2450  LA1SNA R3XBS RR73
105345 -10 2450  CQ R3XBS KO74 (x3)
105500 -23 1691  R3XBS F8FFV JN17
105515  -9 2449  F8FFV R3XBS -14 (x2)
105645 -16 2449  CQ R3XBS KO74 (x5)
110015  -2 2450  BG0FQU R3XBS KO74 (x3)
10m
UTC    dB Audio  Message
094145  -1 1696  R3XBS LZ2HN R-18 (x3)
092915 -24 1824  R3XBS F1TXI -20
082630 -22 1363  CQ R3XBS KO74
082730 -22 1363  DN9SGE R3XBS -13 (x2)
082830 -19 1363  CQ R3XBS KO74 (x2)
083100 -24 1363  PA3GMD R3XBS RR73
083130 -17 1363  CQ R3XBS KO74 (x2)
083230 -23 1363  UB4RHI R3XBS -05
083400 -20 1364  CQ R3XBS KO74
083430 -21 1363  DO1FZL R3XBS -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.

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