BG3UPS — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: China Most frequent locator attributed to this token: OM67

Receiver-side FT8 activity involving BG3UPS, decoded by SO8OO in southeastern Poland. 23 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-26.

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 23 FT8 messages attributed to BG3UPS as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (52%), followed by 40 m (30%) and 80 m (17%). Several six-hour UTC windows tied for the largest share (74%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -18 dB.

Overview

23
Messages attributed
6
UTC dates decoded
10
Active 15-min windows
-18 dB
Estimated median S/N

Bands

80m · 4 40m · 7 20m · 12
First attributed message: 2026-06-07
Last attributed message: 2026-09-26 21:01 UTC

Observed FT8 message patterns

Attributed sample
23 messages
Active dates
6 UTC dates
Estimated median S/N
-18 dB
Estimated 10th-90th percentile
-24 to -9 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 9, strong (≥ -8 dB) 2.

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 BG3UPS 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 BG3UPS

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
OM67 · 6 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
6,997 km (approx.)
Last such locator decoded
2026-09-26 21:01 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 UTCBandBG3UPS S/NCounterpartCounterpart S/NMsgsCapture
09-29 14:28 40m - / - R7DX -11 / - 3 Partial capture
09-26 21:13 40m - / -18 CT1FIU -13 / - 4 Partial capture
09-26 21:10 40m - / -12 TK4QP -17 / - 2 ✓ Closing fragment
09-26 21:09 40m - / - GI7LOU -8 / - 2 Partial capture
09-26 21:09 40m - / - PI4DX +12 / - 6 Partial capture
09-26 21:03 40m - / - PI4DX +9 / - 5 Partial capture
09-26 21:00 40m -16 / - TA3JOH - / - 2 Partial capture
09-26 20:57 40m -15 / -3 M5BFL +6 / - 3 ✓ Closing observed
09-26 20:54 40m -20 / - 7Z1IS - / -19 2 ✓ Closing fragment
09-25 23:00 40m - / - G7SLB -4 / - 2 Partial capture
09-24 21:59 80m - / -16 CN8WK +7 / - 2 ✓ Closing fragment
09-24 21:49 80m - / - DD3KF +8 / - 2 Partial capture
09-24 21:47 80m -24 / - LU2DSL - / - 2 Partial capture
09-24 21:40 40m - / - UX1VT -8 / - 3 Partial capture
09-24 21:39 40m -24 / -8 EA7ALL -1 / - 4 ✓ Closing observed
09-24 21:38 40m - / -13 IU2GFI -2 / - 2 ✓ Closing fragment
09-24 21:35 80m - / - RK6OQ +1 / - 3 Partial capture
09-24 21:34 80m -24 / - BG0KE - / -15 2 Partial capture
09-24 21:32 80m - / -14 UA4POO -7 / - 3 Partial capture
09-24 21:29 80m - / - RV6AVU +6 / - 2 Partial capture
09-24 21:25 80m - / -17 TA7ARH -9 / - 3 ✓ Closing fragment
09-19 15:40 80m - / -13 UF3T -1 / - 5 ✓ Closing fragment
09-19 15:34 80m - / +7 R6KA +8 / - 2 ✓ Closing fragment
09-12 22:36 40m - / -24 EA3AAY -6 / - 4 ✓ Closing fragment
07-30 20:36 20m - / - CT1EHK -6 / - 2 Partial capture
07-30 20:26 20m - / -4 EA6UE -8 / - 3 ✓ Closing fragment
07-25 21:55 40m - / - DM2SP -3 / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
211015 +12 2318  BG3UPS PI4DX JO21
211015  -4 2740  BG3UPS GI7LOU IO64
211045 -18 1259  BG3UPS TK4QP -12
211045  +9 2318  BG3UPS PI4DX JO21
211115 -16 1259  BG3UPS TK4QP RR73
211115 +12 2318  BG3UPS PI4DX JO21 (x2)
211345 -12 1305  BG3UPS CT1FIU -18 (x4)
142645  +1 1974  BG3UPS DL6MRS JO52
142845 -13 1347  BG3UPS R7DX KN84 (x3)
80m 
UTC    dB Audio  Message
213015  -5 1529  BG3UPS 5B4AMX KM65
213215  -5 1289  BG3UPS UA4POO -14 (x3)
213430 -24 1457  BG0KE BG3UPS OM67 (x2)
213545  +1  742  BG3UPS RK6OQ KN87 (x3)
214715 -24 1610  LU2DSL BG3UPS OM67 (x2)
214930  +7 2687  BG3UPS DD3KF JO30 (x2)
215930  +8  462  BG3UPS CN8WK -16 (x2)
20m 
UTC    dB Audio  Message
202630  -8 1354  BG3UPS EA6UE R-04 (x3)
203400  -3  791  BG3UPS TN8GD R-13
203500 -14 1439  BG3UPS SV5BYP R-16
203600  -7 1939  BG3UPS CT1EHK IM58 (x2)
150845 -18 1902  WU9B BG3UPS -09

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.

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