R7BO — 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: KN94

Receiver-side FT8 activity involving R7BO, decoded by SO8OO in southeastern Poland. 330 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 14 UTC dates in the available aggregate history. Observed between 2026-06-15 and 2026-10-12.

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 330 FT8 messages attributed to R7BO as the transmitting token by decoded message structure across 14 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (52%), followed by 80 m (36%) and 10 m (9%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

330
Messages attributed
14
UTC dates decoded
42
Active 15-min windows
-8 dB
Estimated median S/N

Bands

First attributed message: 2026-06-15
Last attributed message: 2026-10-12 19:58 UTC

Observed FT8 message patterns

Attributed sample
330 messages
Active dates
14 UTC dates
Estimated median S/N
-8 dB
Estimated 10th-90th percentile
-15 to 0 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 32, moderate (-15 to -9 dB) 123, strong (≥ -8 dB) 175.

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 R7BO

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
KN94 · 119 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,429 km (approx.)
Last such locator decoded
2026-10-12 19:43 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 UTCBandR7BO S/NCounterpartCounterpart S/NMsgsCapture
10-12 19:57 40m -8 / - VU3OSA - / -16 2 ✓ Closing fragment
10-12 19:50 40m +2 / -8 EA7BD -22 / -10 4 ✓ Full exchange observed
10-12 19:48 40m 0 / -7 IK2SND -2 / -11 3 ✓ Full exchange observed
10-12 19:38 40m -2 / - GU4WRP - / -18 2 Partial capture
10-12 19:34 40m -1 / - UB3BDJ -10 / -18 3 ✓ Closing observed
10-12 19:32 40m -2 / -8 F1DSZ +2 / -13 4 ✓ Full exchange observed
10-12 19:30 40m -6 / +5 GJ0KYZ -7 / -11 3 ✓ Full exchange observed
10-12 19:28 40m +6 / -14 EA5IIE -8 / -10 4 ✓ Full exchange observed
10-12 19:26 40m -5 / -10 UB3FBD -17 / -7 4 Partial capture
10-12 19:26 40m -2 / - IU5VLR - / -15 2 ✓ Closing fragment
10-12 19:20 40m -4 / - 9A7W - / +3 2 Partial capture
10-12 19:01 40m -14 / - R4ZZ - / -18 2 ✓ Closing fragment
10-12 18:57 40m -12 / - Z62NS - / -16 2 ✓ Closing fragment
10-12 18:54 40m - / - DG3DAF -2 / - 2 Partial capture
10-12 18:52 40m -13 / - RC9WC - / -11 2 ✓ Closing fragment
10-12 18:46 40m -9 / - RW3DDZ - / -13 2 ✓ Closing fragment
10-12 18:35 40m - / -8 R2SN 0 / - 3 Partial capture
10-12 18:26 40m - / - DK8HC -4 / - 2 Partial capture
10-12 18:22 40m -15 / - VU3OSA - / -19 2 Partial capture
10-12 18:13 40m -16 / - UA1ALY - / -16 3 Partial capture
10-12 18:10 80m -10 / -13 R2DVN -6 / -14 4 ✓ Full exchange observed
10-12 18:09 80m - / - OM1TD +4 / - 7 Partial capture
10-12 18:05 80m -13 / -5 SV1EAG -24 / -21 2 Partial capture
10-12 18:04 80m -10 / -19 II5GG -2 / - 3 ✓ Closing observed
10-12 18:03 80m -9 / -5 HG0NPJ -5 / -19 4 ✓ Full exchange observed
10-12 18:03 80m - / - OE5RLP +15 / - 2 Partial capture
10-12 18:01 80m -8 / +3 RA3UEV -1 / -7 4 ✓ Full exchange observed
10-12 18:00 80m -9 / -4 RA4CFX -18 / - 3 ✓ Closing observed
10-09 20:29 40m -7 / - VK7AC - / -22 4 Partial capture
10-09 20:25 40m -6 / -6 EI4JFB -9 / -14 5 ✓ Full exchange observed
10-09 20:25 40m -10 / - IU2THY +10 / -9 4 Partial capture
10-09 20:23 40m -4 / - MW7RHR - / -20 2 ✓ Closing fragment
10-09 20:21 40m -6 / - PD0LBY - / -13 2 ✓ Closing fragment
10-09 20:20 40m -3 / - F4MZI -3 / -20 3 ✓ Closing observed
10-09 20:15 40m -4 / - DK1SF - / -14 2 ✓ Closing fragment
10-09 20:13 40m -6 / - UB8CSJ - / -16 3 Partial capture
10-09 20:11 40m -12 / -1 EW4DX -3 / +1 6 ✓ Full exchange observed
10-09 20:11 40m - / -10 IK8IOI -14 / - 2 Partial capture
10-09 20:10 40m -13 / - EX7CQ -12 / - 2 ✓ Closing observed
10-09 20:08 40m - / - DF8RU -4 / - 3 Partial capture
10-09 20:08 40m - / -8 M0CQL -13 / - 3 ✓ Closing fragment
10-09 20:04 40m - / -10 IK8IOI -12 / - 4 Partial capture
10-09 20:02 40m - / -10 HA3HA -11 / - 2 ✓ Closing fragment
10-09 19:56 40m - / - F1IQH -6 / - 3 Partial capture
10-09 19:53 40m -6 / - IK8IOI - / -20 4 Partial capture
10-09 18:47 40m -8 / - RA5AK - / -8 2 ✓ Closing fragment
10-09 18:41 40m -14 / - R4HGK - / -7 3 ✓ Closing fragment
10-06 18:43 80m - / -14 RA6FYL -12 / - 3 Partial capture
10-06 18:42 80m 0 / -1 UG4L -8 / -12 3 ✓ Full exchange observed
10-06 18:37 80m - / - DO5HOK -1 / - 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
193945  -6 1483  GU4WRP R7BO -14
194100 -14 1540  R7BO F4HKP JN18
194245  -8 1483  CQ R7BO KN94 (x2)
194415  -5 1483  R3DPZ R7BO -17
194715  +1 1483  BG0FQU R7BO 73
194845  +0 1483  IK2SND R7BO -11
194900  -2 1263  R7BO IK2SND R-07 (x2)
195000 -24 1751  R7BO EA7BD IM77
195015  +2 1483  EA7BD R7BO -10
195030 -23 1750  R7BO EA7BD R-08 (x2)
195745 -11 2549  VU3OSA R7BO -16 (x2)
80m
UTC    dB Audio  Message
180600 -24 2016  R7BO SV1EAG R-05
180700 -12 1095  R2HD R7BO -06
180815 -14 1096  UR5RBP R7BO -11
180930  +6  638  R7BO OM1TD JN88
181000 -10 1096  R2DVN R7BO -14
181000  +8  638  R7BO OM1TD JN88
181015  -5 2505  R7BO R2DVN R-13
181030 -10 1096  R2DVN R7BO RR73
181030  +2  638  R7BO OM1TD JN88
181045  -7 2506  R7BO R2DVN 73
181100  -2  638  R7BO OM1TD JN88
181130  -7 1096  R9AL R7BO RR73
181245  +4  638  R7BO OM1TD JN88 (x3)
20m
UTC    dB Audio  Message
195815 -12 1777  RA3Y R7BO +05 (x2)
202245 +15  466  RI1FJL R7BO RR73
10m
UTC    dB Audio  Message
181415  -8  488  R7BO IK4LZH 73
190345 -14 1406  CQ R7BO KN94 (x2)
190445 -11 1407  M8FQT R7BO -12 (x3)
190715 -17 1444  EU6AX R7BO RR73
190745 -22 1444  CQ R7BO KN94                          a1 (x2)
191000 -14 1444  SA2DOC R7BO RR73
191430 -23 1444  M7CLI R7BO R-19 (x2)
194500 -12 1444  CQ R7BO KN94
194530 -11 1444  DO9BAU R7BO -20 (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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