RX9UCF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Asiatic Russia Most frequent locator attributed to this token: NO33

Receiver-side FT8 activity involving RX9UCF, decoded by SO8OO in southeastern Poland. 42 FT8 messages attributed to this token as transmitter, on 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-07 and 2026-09-13.

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 42 FT8 messages attributed to RX9UCF as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was -16 dB; no usual signal pattern is inferred.

Overview

42
Messages attributed
2
UTC dates decoded
6
Active 15-min windows
-16 dB
Estimated median S/N

Bands

40m · 42
First attributed message: 2026-09-07
Last attributed message: 2026-09-13 00:22 UTC

Observed FT8 message patterns

Attributed sample
42 messages
Active dates
2 UTC dates
Estimated median S/N
-16 dB
Estimated 10th-90th percentile
-21 to -11 dB
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 22, moderate (-15 to -9 dB) 19, strong (≥ -8 dB) 1.

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 RX9UCF in decoded directed-looking exchanges:

Most frequent locator attributed to RX9UCF

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
NO33 · 26 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
4,351 km (approx.)
Last such locator decoded
2026-09-13 00:22 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 UTCBandRX9UCF S/NCounterpartCounterpart S/NMsgsCapture
09-16 01:59 40m - / -4 R9WJ +4 / - 3 Partial capture
09-13 00:18 40m -12 / - 9A5E - / -9 3 ✓ Closing fragment
09-13 00:16 40m -9 / - PA2JPD - / -26 3 ✓ Closing fragment
09-13 00:10 40m - / - EA5W -18 / - 6 Partial capture
09-08 23:28 40m - / - RD6OZ -8 / - 2 Partial capture
09-08 23:11 40m - / -18 EA3EDU -4 / - 10 ✓ Closing fragment
09-08 23:06 40m - / - EA1ESW -14 / - 7 Partial capture
09-08 23:03 40m - / -12 LZ1ZF -10 / - 4 ✓ Closing fragment
09-08 22:45 40m - / -17 LZ1KU 0 / - 2 ✓ Closing fragment
09-07 00:53 40m - / - F4FPR -7 / - 4 Partial capture
09-07 00:48 40m -13 / -16 SV9/SV1ABB -4 / - 2 Partial capture
09-07 00:36 40m -13 / -6 SQ8NA -16 / -19 5 ✓ Full exchange observed
09-07 00:31 40m - / - DK8HC -11 / - 5 Partial capture
09-07 00:29 40m - / - PA3DZM -7 / - 3 Partial capture
09-07 00:27 40m -16 / - R1943OD - / -23 2 Partial capture
09-07 00:25 40m - / +9 EX7CQ -4 / - 2 ✓ Closing fragment
09-07 00:23 40m - / -14 LZ5UY -6 / - 2 ✓ Closing fragment
09-07 00:21 40m -20 / -8 CR7BRV -8 / -16 4 ✓ Full exchange observed
09-07 00:15 40m -19 / - CE6UFF - / -26 3 ✓ Closing fragment
09-07 00:11 40m -13 / - CR7BRV - / - 2 Partial capture
09-07 00:10 40m -17 / - SP7TF - / -14 3 Partial capture
09-07 00:04 40m - / - EA5W -10 / - 16 Partial capture
09-07 00:04 40m - / +1 R1943OD +1 / - 2 Partial capture
08-28 06:27 20m - / - RA9XSL -12 / - 2 Partial capture
08-28 06:24 20m - / -14 RD1A +8 / - 2 ✓ Closing fragment
08-21 05:27 20m - / -5 UN2NC -18 / - 2 Partial capture
07-25 17:12 40m - / -16 R2SL -6 / - 2 ✓ Closing fragment
07-25 16:46 40m - / -14 R7KM -18 / - 3 Partial capture
07-24 20:25 40m - / - R3YAU -10 / - 2 ✓ Closing fragment
07-24 20:19 40m - / - PE1DQV -13 / - 3 Partial capture
07-24 20:19 40m - / -14 R3YAU -11 / - 5 Partial capture
07-24 20:19 40m - / -5 SP5TWA -15 / - 3 ✓ Closing fragment
07-24 20:05 40m - / -12 S59A +6 / - 2 Partial capture
07-24 19:58 40m - / -9 S59A +9 / - 3 Partial capture
07-24 19:57 40m - / - UB3YGA -12 / - 2 Partial capture
07-22 13:13 20m - / -10 RN9N -17 / - 3 Partial capture
07-21 15:12 40m - / -13 UA3ZQN -8 / - 3 ✓ Closing fragment
07-19 01:01 40m - / -17 LZ3CB -15 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
001500 -20 1595  RX9UCF EA5W IM97 (x2)
001645 -11 2316  PA2JPD RX9UCF NO33 (x3)
001845 -13 2316  9A5E RX9UCF NO33 (x3)
002000 -10 2352  RX9UCF MI7XHT IO64
002230 -16 1598  CQ RX9UCF NO33
121845 -17 1833  RX9UCF R3KJF KO91
015945  +2 2944  RX9UCF R9WJ -04 (x3)
020515  -2 1487  RX9UCF IT9VCE RR73
20m 
UTC    dB Audio  Message
180330  -5 2737  RX9UCF BI4XDT PM01
053145 -16 1508  RX9UCF UI5A KO85
131345 -16 1831  RX9UCF RN9N MO64 (x2)
131445 -17 2078  RX9UCF R2GFD KO92
131545 -16 1831  RX9UCF RN9N R-10
025130 -16 1222  RX9UCF KF9UG -16
032800 -24 1868  RX9UCF EX8ABR RR73
010915 -15 1096  RX9UCF R9FF R-07
052700 -18 1904  RX9UCF UN2NC -05 (x2)
062445  +9 2738  RX9UCF RD1A -14 (x2)
062745 -15 1306  RX9UCF RA9XSL LP51 (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.

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