UA3GJM — 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: KO92

Receiver-side FT8 activity involving UA3GJM, decoded by SO8OO in southeastern Poland. 2,218 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 140 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-11-05.

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 2,218 FT8 messages attributed to UA3GJM as the transmitting token by decoded message structure across 140 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (43%), followed by 80 m (33%) and 20 m (19%). Most decodes (82%) 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 -7.6 dB.

Overview

2,218
Messages attributed
140
UTC dates decoded
471
Active 15-min windows
-7.6 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-11-05 19:00 UTC

Observed FT8 message patterns

Attributed sample
2,218 messages
Active dates
140 UTC dates
Estimated median S/N
-7.6 dB
Estimated 10th-90th percentile
-16.8 to +3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 298, moderate (-15 to -9 dB) 707, strong (≥ -8 dB) 1,213.

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 UA3GJM

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
KO92 · 30 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,229 km (approx.)
Last such locator decoded
2026-10-30 15:52 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 UTCBandUA3GJM S/NCounterpartCounterpart S/NMsgsCapture
11-06 09:43 40m - / -8 US8KA +7 / - 2 ✓ Closing fragment
11-05 18:59 80m 0 / - YO2LTF - / -11 2 Partial capture
11-05 18:54 40m - / -2 RN4AD -8 / - 2 ✓ Closing fragment
11-05 18:51 80m -5 / +1 TA7MMI +1 / - 2 ✓ Closing observed
11-05 16:20 80m -4 / - UB5O/M - / -8 2 Partial capture
11-05 16:20 80m -7 / -6 RA2FGK -6 / - 3 ✓ Closing observed
11-04 19:32 80m - / - LZ1ZF -10 / - 2 Partial capture
11-04 19:14 80m -5 / -3 EW8DU -3 / - 6 ✓ Closing observed
11-04 19:14 80m -10 / +3 LZ1GC +14 / - 3 ✓ Closing observed
11-04 19:10 40m -9 / - UA9XL/P - / -11 3 Partial capture
11-03 18:18 40m -17 / -16 M0PHC -8 / -10 3 ✓ Full exchange observed
11-03 18:06 80m -7 / - RA6ZN - / -3 3 Partial capture
11-03 17:58 40m -8 / -10 HB9BWE +1 / - 3 ✓ Closing observed
11-03 15:49 40m - / +4 PF40EUDXF 0 / - 2 Partial capture
11-03 15:44 80m -14 / - 9A60CBM - / -13 2 Partial capture
11-03 15:41 40m - / -7 PF40EUDXF -2 / - 2 Partial capture
11-03 15:40 80m -11 / - 9A60CBM - / -12 3 Partial capture
11-02 19:15 80m -15 / - RU6LC - / -15 2 Partial capture
11-02 19:13 80m - / -11 RU4CK/P -16 / - 2 ✓ Closing fragment
11-02 15:04 40m -10 / - DH1NGL - / -13 2 ✓ Closing fragment
11-02 15:02 40m -11 / -9 S54E +5 / - 5 ✓ Closing observed
11-02 13:36 40m -10 / - R4RJ - / -7 2 ✓ Closing fragment
11-02 13:30 40m -11 / - R9UDK - / -14 3 Partial capture
11-01 18:50 80m -4 / -4 GI4SNA +5 / -6 4 Partial capture
11-01 18:16 80m -6 / -5 OM2KI +12 / -2 4 ✓ Full exchange observed
11-01 18:13 40m - / +4 9K2YM -11 / - 2 ✓ Closing fragment
11-01 16:03 80m -6 / -10 EU2NS -4 / -12 4 ✓ Full exchange observed
11-01 16:01 80m -10 / -9 IK6QOP +12 / -6 4 ✓ Full exchange observed
11-01 15:59 80m -7 / -10 R1BQV -6 / -11 4 ✓ Full exchange observed
11-01 15:59 80m -6 / - RA0SCZ - / -13 2 Partial capture
11-01 13:37 40m -16 / - PH26BOO - / -18 2 Partial capture
11-01 13:34 40m -13 / - RK0SK - / -13 4 ✓ Closing fragment
11-01 13:12 40m -12 / - VK2AGS - / -22 2 Partial capture
11-01 13:12 40m -10 / +7 RY6LAL -16 / - 2 ✓ Closing observed
10-31 18:39 80m - / -6 SP7SZJ +2 / - 2 ✓ Closing fragment
10-31 18:37 80m -3 / -9 SP9DGO +2 / -7 3 Partial capture
10-31 18:30 80m -4 / - RW9YO - / -16 2 Partial capture
10-31 16:16 40m -10 / - R4PHD - / -11 3 Partial capture
10-31 16:15 40m -8 / - R1CS - / -11 3 ✓ Closing fragment
10-30 18:55 80m -5 / - EY7BP - / -16 2 Partial capture
10-30 18:41 80m -8 / - R3KJM - / -9 2 Partial capture
10-30 18:41 80m -14 / - UA4WKE - / -7 2 ✓ Closing fragment
10-30 18:39 80m -12 / - R4ABW - / -10 2 ✓ Closing fragment
10-30 18:38 40m -6 / -14 OH3SW -6 / - 3 ✓ Closing observed
10-30 15:52 40m -12 / - UA8CFJ - / -15 3 ✓ Closing fragment
10-29 19:02 80m -3 / - YO3IJ -9 / -11 3 ✓ Closing observed
10-29 19:00 80m - / -3 RA6OY -7 / - 2 ✓ Closing fragment
10-28 18:39 80m - / +3 HA5UA +14 / - 2 Partial capture
10-28 18:21 80m -7 / - R6DVS - / -10 2 Partial capture
10-28 18:19 80m -8 / - RL3FM - / 0 4 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
175830  -8 1137  HB9BWE UA3GJM RR73
175845  -1 2341  UA3GJM HB9BWE 73
181730 -11 1135  EA6NB UA3GJM -08
181800  -7 1135  PD2MAC UA3GJM -09
181830 -17 1135  M0PHC UA3GJM -10
181915  -6 1541  UA3GJM M0PHC R-16 (x2)
154930 -17 1150  UB1AYZ UA3GJM -08
191045 -12 1150  UA9XL/P UA3GJM -11 (x3)
185445  -8  554  UA3GJM RN4AD R-02 (x2)
094315  +9  790  UA3GJM US8KA R-08 (x2)
80m
UTC    dB Audio  Message
191730  -5 1122  EW8DU UA3GJM RR73
191745  -4 1122  UA3GJM EW8DU 73
193245  -7 1715  UA3GJM LZ1ZF KN22 (x2)
162000  -3 1158  UA3GJM RA2FGK R-06
162015  -7 1134  RA2FGK UA3GJM RR73
162030  -9 1158  UA3GJM RA2FGK 73
162045  -6 1134  UB5O/M UA3GJM -08 (x2)
185130  -4 1134  SP7JLH UA3GJM -02
185145  +1 1993  UA3GJM TA7MMI R+01
185200  -5 1134  TA7MMI UA3GJM RR73
185915  +0 1134  YO2LTF UA3GJM -11 (x2)
190015  +0 1134  YO2CR UA3GJM -09
10m
UTC    dB Audio  Message
094145  +6  379  UA3GJM IU6CWS R-07 (x2)
084745 -22 1839  UA3GJM LZ3AN R+02
115215  +8  482  UA3GJM EA7AKL R-18 (x4)
20m
UTC    dB Audio  Message
142730  +3 1270  R0SDC UA3GJM RR73
144545  +2 1265  OE3MZC UA3GJM -02 (x2)
144645  +0 1264  DF0AWG UA3GJM -02
144715  +1 1264  JH6HZH UA3GJM -08
144745  +3 1263  OH1FOF UA3GJM -09
144800  +0 2534  UA3GJM OH1FOF R+05
144815  +1 1263  OH1FOF UA3GJM RR73
144845  +1 1263  JH6HZH UA3GJM -13
144915  -1 1263  OE6TNO UA3GJM -08
145015  +1 1262  RX0AT UA3GJM -11 (x2)
145115  -7 1261  F8CKS UA3GJM -07
163145  -8 1271  OK2MKJ UA3GJM -11 (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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