UA3SCF — 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: LO03

Receiver-side FT8 activity involving UA3SCF, decoded by SO8OO in southeastern Poland. 635 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 35 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-22.

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 635 FT8 messages attributed to UA3SCF as the transmitting token by decoded message structure across 35 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (31%), followed by 40 m (28%) and 160 m (23%). Most decodes (68%) fell within the six-hour window 14:00-20:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9.6 dB.

Overview

635
Messages attributed
35
UTC dates decoded
94
Active 15-min windows
-9.6 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-10-22 14:50 UTC

Observed FT8 message patterns

Attributed sample
635 messages
Active dates
35 UTC dates
Estimated median S/N
-9.6 dB
Estimated 10th-90th percentile
-18.2 to +1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 133, moderate (-15 to -9 dB) 213, strong (≥ -8 dB) 289.

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 UA3SCF

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
LO03 · 247 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,376 km (approx.)
Last such locator decoded
2026-10-22 14:44 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 UTCBandUA3SCF S/NCounterpartCounterpart S/NMsgsCapture
10-22 14:49 80m -8 / +2 RQ4F -20 / -2 5 ✓ Full exchange observed
10-22 14:48 80m -10 / - RA6ZD - / -7 3 ✓ Closing fragment
10-22 14:47 80m -12 / - RT9YO - / -12 2 ✓ Closing fragment
10-22 14:45 80m -10 / - R1NI -16 / -3 2 Partial capture
10-22 14:45 80m -12 / - RZ9O - / -9 2 ✓ Closing fragment
10-22 14:27 40m -16 / - JE2RMH - / -15 2 Partial capture
10-22 14:22 40m -14 / +4 RA3LBW -10 / -1 4 ✓ Full exchange observed
10-22 14:22 40m -16 / - R5GG -20 / -16 2 Partial capture
10-22 14:19 40m -15 / -12 OK1FRG +4 / -12 5 ✓ Full exchange observed
10-22 14:17 40m -16 / - R4IQ - / -11 2 ✓ Closing fragment
10-22 14:10 40m -10 / 0 RV6HEG -20 / - 3 ✓ Closing observed
10-22 14:07 40m -14 / - UB6LLI - / - 2 ✓ Closing fragment
10-15 13:38 40m -14 / - UA6MO - / -10 2 ✓ Closing fragment
10-15 13:35 40m -16 / - YB2AYA - / -14 3 ✓ Closing fragment
10-15 13:31 40m -16 / -18 DA1ST -16 / -15 8 ✓ Full exchange observed
10-15 13:24 40m -20 / -7 Z61DX -1 / -20 5 ✓ Full exchange observed
10-15 13:07 40m -19 / - UB0SDP - / -13 3 ✓ Closing fragment
10-15 13:04 40m -16 / - YB8APP - / -14 2 Partial capture
10-15 12:51 40m -18 / - RT5R -21 / -4 2 ✓ Closing observed
10-15 12:49 40m - / +2 RA3ZGT -10 / - 3 ✓ Closing fragment
10-15 12:45 40m -19 / - RG6OR -24 / -1 2 ✓ Closing observed
10-15 12:39 40m - / -15 RK2Z -9 / - 3 ✓ Closing fragment
10-08 18:37 160m -13 / -10 SQ2PHC +2 / -10 5 ✓ Full exchange observed
10-08 18:33 160m -18 / - RA3RDN - / -7 2 ✓ Closing fragment
10-08 18:23 160m -18 / 0 UB3IBG -10 / -7 6 ✓ Full exchange observed
10-08 18:22 160m -20 / -2 R7AW -16 / -3 3 ✓ Full exchange observed
10-08 18:19 160m -10 / -13 SN4K 0 / -21 8 ✓ Full exchange observed
10-08 18:19 160m - / - UB3IBG -11 / - 3 Partial capture
10-08 15:06 40m - / - U1BD -11 / - 3 Partial capture
10-08 15:05 40m -6 / - RZ1AS -9 / -5 3 ✓ Closing observed
09-22 16:49 160m -10 / - R2DRE -15 / -2 3 ✓ Closing observed
09-19 19:20 160m -6 / -17 SV8DJW -6 / -15 5 Partial capture
09-19 19:17 160m -11 / -22 S57AM -2 / -20 6 ✓ Full exchange observed
09-19 18:50 160m - / -7 RZ3DUB -18 / - 2 Partial capture
09-19 18:48 160m -10 / -20 R2DGN +1 / - 4 ✓ Closing observed
09-19 03:40 40m -8 / - R8CKD - / -4 2 ✓ Closing fragment
09-19 03:34 40m - / - RN6HK +4 / - 3 Partial capture
09-18 14:12 40m -6 / +2 R2SN 0 / +5 4 ✓ Full exchange observed
09-18 14:11 40m -6 / -17 R4CCE -6 / +2 4 ✓ Full exchange observed
09-07 03:59 80m -7 / - UA3QQG - / -2 2 ✓ Closing fragment
09-05 17:59 160m -14 / - RA4NCC - / -21 2 ✓ Closing fragment
09-05 17:56 160m -4 / -3 UB9MEU -20 / -20 3 ✓ Full exchange observed
09-05 17:54 160m -2 / -11 RX3T -10 / -1 7 ✓ Full exchange observed
09-05 17:49 160m -4 / - EX8MCD - / -20 2 ✓ Closing fragment
09-05 17:47 160m -9 / -1 RC2DD -16 / -5 4 ✓ Full exchange observed
09-05 17:43 160m +8 / -10 RA6SA +6 / -1 5 ✓ Full exchange observed
09-05 17:35 160m -3 / - UA8J - / -10 3 ✓ Closing fragment
09-05 17:23 160m +4 / -10 OK1TP -2 / -22 4 ✓ Full exchange observed
09-05 17:18 160m -12 / - UA4LDP - / -13 2 ✓ Closing fragment
09-05 17:17 160m -12 / - RJ3T - / -16 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
144445 -14 1210  CQ UA3SCF LO03
144515 -12 1210  RZ9O UA3SCF -09
144530 -16  833  UA3SCF R1NI KP61
144545 -11 1210  RZ9O UA3SCF RR73
144615 -10 1210  R1NI UA3SCF -03
144715 -12 1209  RT9YO UA3SCF -12 (x2)
144815 -10 1209  RA6ZD UA3SCF -07 (x2)
144900 -20 1688  UA3SCF RQ4F +02
144915 -12 1209  RA6ZD UA3SCF 73
144930 -19 1689  UA3SCF RQ4F +02
144945  -8 1209  RQ4F UA3SCF R-02
145000 -22 1688  UA3SCF RQ4F RR73
145015  -7 1209  RQ4F UA3SCF 73
40m
UTC    dB Audio  Message
141915 -17 1235  OK1FRG UA3SCF -12
141930  +4 2841  UA3SCF OK1FRG R-12
141945 -13 1236  OK1FRG UA3SCF RR73
142000  +4 2841  UA3SCF OK1FRG 73
142045 -17 1235  UB9MEU UA3SCF RR73
142145 -20 1235  CQ UA3SCF LO03
142200 -20 1668  UA3SCF R5GG KO92
142215 -14 1236  RA3LBW UA3SCF -01
142230 -10 1235  UA3SCF RA3LBW R+04
142245 -14 1236  RA3LBW UA3SCF RR73
142300  -9 1234  UA3SCF RA3LBW 73
142315 -16 1235  R5GG UA3SCF -16
142500 -11 1235  MM0HSF UA3SCF -20
142715 -14 1236  JE2RMH UA3SCF -15 (x2)
160m
UTC    dB Audio  Message
182845  -9 1979  CQ UA3SCF LO03 (x5)
183315 -20 1979  RA3RDN UA3SCF -07 (x2)
183545 -24 2027  CQ UA3SCF LO03 (x3)
183730  +0  927  UA3SCF SQ2PHC JO94
183745 -13 2027  SQ2PHC UA3SCF -10
183800  +4  927  UA3SCF SQ2PHC R-10
183815 -13 2027  SQ2PHC UA3SCF RR73
183830  +3  927  UA3SCF SQ2PHC 73
20m
UTC    dB Audio  Message
133800  +6 2113  UA3SCF F5IXN JN23
133815  -4 2114  F5IXN UA3SCF -13
133830  +6 2113  UA3SCF F5IXN R-08
133845  -9 2113  F5IXN UA3SCF RR73
133900  +5 2113  UA3SCF F5IXN 73
133915  -9 2113  RW6HPS UA3SCF -15
133930  +2 2114  UA3SCF RW6HPS R-06
133945  -4 2113  RW6HPS UA3SCF RR73
134115 +10 2113  DL2NO UA3SCF R-09
134230  -3 1690  UA3SCF DL2NO RR73
135600 +12 2726  9A5JU UA3SCF -18 (x2)
033415  -7 1829  UA3SCF UA9CK MO09 (x3)

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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