CR7BYO — 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: Portugal Most frequent locator attributed to this token: IM58

Receiver-side FT8 activity involving CR7BYO, decoded by SO8OO in southeastern Poland. 139 FT8 messages attributed to this token as transmitter, on 10m, across 2 UTC dates in the available aggregate history. Observed between 2026-11-03 and 2026-11-04.

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 139 FT8 messages attributed to CR7BYO as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (100%). In this small sample, the estimated median decoder S/N was -14 dB; no usual signal pattern is inferred.

Overview

139
Messages attributed
2
UTC dates decoded
16
Active 15-min windows
-14 dB
Estimated median S/N

Bands

First attributed message: 2026-11-03
Last attributed message: 2026-11-04 11:40 UTC

Observed FT8 message patterns

Attributed sample
139 messages
Active dates
2 UTC dates
Estimated median S/N
-14 dB
Estimated 10th-90th percentile
-21 to -5 dB
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 57, moderate (-15 to -9 dB) 59, strong (≥ -8 dB) 23.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with CR7BYO 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 CR7BYO

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
IM58 · 72 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
2,737 km (approx.)
Last such locator decoded
2026-11-04 11:40 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 UTCBandCR7BYO S/NCounterpartCounterpart S/NMsgsCapture
11-04 11:39 10m -10 / - PC9K - / - 4 Partial capture
11-04 11:20 10m -16 / - M1DBW - / - 4 Partial capture
11-04 11:10 10m -21 / - DJ7JB - / -18 3 Partial capture
11-04 11:06 10m -17 / - IU8WPS - / -25 4 Partial capture
11-04 10:56 10m -22 / - UA2FFD - / - 2 ✓ Closing fragment
11-04 10:51 10m -21 / - TF5B - / - 2 Partial capture
11-04 10:44 10m -11 / - IT9ACJ - / -3 4 ✓ Closing fragment
11-03 11:49 10m -18 / - IU8LPE - / - 2 ✓ Closing fragment
11-03 11:41 10m -17 / - YT2ZE - / +2 2 Partial capture
11-03 11:35 10m -14 / - E75FM - / - 2 Partial capture
11-03 11:32 10m -11 / - SP9AFC - / - 2 Partial capture
11-03 11:29 10m -5 / - HZ1DW - / - 2 Partial capture
11-03 11:27 10m -8 / - PD9FLX - / - 2 Partial capture
11-03 11:22 10m -10 / - HZ1DW - / - 4 Partial capture
11-03 11:21 10m -11 / - R4FDD - / -11 2 Partial capture
11-03 11:19 10m -14 / - YO3GNF - / -6 2 Partial capture
11-03 11:17 10m -14 / - R7KKO - / -8 2 ✓ Closing fragment
11-03 11:15 10m -16 / - UR4UT - / -9 2 ✓ Closing fragment
11-03 11:14 10m -14 / - HA7TM - / +5 2 Partial capture
11-03 11:12 10m -10 / - OZ2BMN - / +8 2 Partial capture
11-03 11:07 10m -11 / - TA2R - / - 5 Partial capture
11-03 11:03 10m -14 / - OZ2BMN - / -7 7 Partial capture
11-03 11:01 10m -17 / - SV3AUW - / -1 2 Partial capture
11-03 10:23 10m -3 / - SN9Q - / - 2 ✓ Closing fragment
11-03 10:17 10m -2 / - 5R8IC - / - 6 Partial capture
11-03 10:12 10m -9 / - LA6JEA - / -11 5 ✓ Closing fragment
11-03 09:28 10m -20 / - TA2EE - / -18 10 Partial capture
11-03 09:25 10m -10 / - <...> - / -15 2 Partial capture
11-03 09:19 10m -11 / - 7Q6M - / -3 4 Partial capture
11-03 09:17 10m -6 / - YL3CW - / - 2 Partial capture
11-03 09:14 10m -16 / - EW3MA - / -15 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

10m
UTC    dB Audio  Message
111115 -20 1413  DJ7JB CR7BYO -18
111745  -5 2779  <...> CR7BYO IM58
112045 -16 1177  M1DBW CR7BYO IM58 (x4)
112345 -14 1177  CQ CR7BYO IM58 (x3)
112615 -16 1177  DL7VGU CR7BYO RRR
113315  -1 2780  <...> CR7BYO IM58
113900  -9 2573  PC9K CR7BYO IM58 (x4)

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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