UB3KGW — 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: LO01

Receiver-side FT8 activity involving UB3KGW, decoded by SO8OO in southeastern Poland. 1,751 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 59 UTC dates in the available aggregate history. Observed between 2026-07-08 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 1,751 FT8 messages attributed to UB3KGW as the transmitting token by decoded message structure across 59 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (83%), followed by 80 m (10%) and 20 m (4%). Most decodes (58%) fell within the six-hour window 22:00-04:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

1,751
Messages attributed
59
UTC dates decoded
222
Active 15-min windows
-9 dB
Estimated median S/N

Bands

First attributed message: 2026-07-08
Last attributed message: 2026-11-04 02:35 UTC

Observed FT8 message patterns

Attributed sample
1,751 messages
Active dates
59 UTC dates
Estimated median S/N
-9 dB
Estimated 10th-90th percentile
-17 to -0.9 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 237, moderate (-15 to -9 dB) 684, strong (≥ -8 dB) 830.

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 UB3KGW

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
LO01 · 1,140 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,359 km (approx.)
Last such locator decoded
2026-11-04 02:34 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 UTCBandUB3KGW S/NCounterpartCounterpart S/NMsgsCapture
11-05 03:37 40m - / -10 PD1DBL -2 / - 5 ✓ Closing fragment
11-05 03:18 40m - / - TC8TR -13 / - 8 Partial capture
11-05 03:08 40m - / - OD5KU -16 / - 2 ✓ Closing fragment
11-05 02:51 40m - / -17 RN6HGI -3 / - 4 ✓ Closing fragment
11-05 02:34 40m - / - R4FDK -12 / - 2 ✓ Closing fragment
11-04 10:16 10m - / +3 F1PBZ -7 / - 3 Partial capture
11-04 09:56 10m - / +1 F5GPE -7 / - 3 ✓ Closing fragment
11-04 02:34 40m +1 / -17 R4ML -14 / -11 3 ✓ Full exchange observed
11-04 02:30 40m -4 / - W2CG - / -18 4 ✓ Closing fragment
11-04 02:26 40m -2 / -9 PD7BDN +5 / -12 5 ✓ Full exchange observed
11-04 01:19 40m - / -12 F8MRQ 0 / - 3 ✓ Closing fragment
11-03 23:34 80m - / -17 SV1HFE 0 / - 6 ✓ Closing fragment
11-03 23:26 80m -18 / +1 RA3ZDU +5 / -5 5 ✓ Full exchange observed
11-02 19:33 40m - / +1 GJ0KYZ +4 / - 3 Partial capture
11-02 19:31 40m - / -6 M0BEW -3 / - 4 ✓ Closing fragment
11-02 01:59 40m - / -5 F1PBZ -5 / - 2 ✓ Closing fragment
11-01 17:18 40m - / -10 IN3LHF +4 / - 2 ✓ Closing fragment
10-31 03:49 40m - / +6 GM6URC -16 / - 4 Partial capture
10-30 19:34 40m -14 / - OK2FKU - / -5 2 ✓ Closing fragment
10-28 20:00 40m +4 / - M0PAW - / -11 2 ✓ Closing fragment
10-28 19:56 40m +3 / - DK3JW - / -20 4 ✓ Closing fragment
10-28 19:55 40m -8 / +2 GJ0KYZ 0 / -5 4 Partial capture
10-28 19:45 40m -6 / - PA3GYF -9 / - 2 ✓ Closing observed
10-28 19:41 40m -9 / -14 S58N -2 / - 3 ✓ Closing observed
10-28 19:32 40m -8 / - M7MJW -8 / -9 2 Partial capture
10-28 19:22 40m -7 / - PD8O +5 / -13 4 Partial capture
10-28 19:22 40m -13 / - M0MCT - / -11 2 Partial capture
10-28 19:19 80m - / -25 YO4NT +14 / - 2 Partial capture
10-28 03:52 40m -12 / - HK3AQJ - / - 4 Partial capture
10-28 03:48 40m -12 / -4 ES2AJ -10 / -7 4 ✓ Full exchange observed
10-28 03:41 40m -5 / -13 M9XPN -5 / -12 9 ✓ Full exchange observed
10-28 03:41 40m -7 / - R6OY - / -13 2 ✓ Closing fragment
10-28 03:39 40m -10 / -18 R6LE +6 / -1 5 ✓ Full exchange observed
10-28 03:32 40m -10 / - RA6Z -8 / -6 3 ✓ Closing observed
10-28 03:26 40m -4 / - GM6URC - / -16 3 Partial capture
10-28 03:24 40m -6 / - DH2NJS - / -18 11 ✓ Closing fragment
10-28 03:22 40m 0 / -8 R7BN -3 / 0 5 ✓ Full exchange observed
10-28 03:06 40m - / - M9XPN -5 / - 3 Partial capture
10-26 23:21 80m - / - DO9BAU +9 / - 13 Partial capture
10-25 17:55 40m - / - IZ8MNF -10 / - 2 Partial capture
10-25 17:47 40m - / -11 DL5ASK +10 / - 2 ✓ Closing fragment
10-25 02:33 40m -17 / -20 G1LQT -12 / -19 5 ✓ Full exchange observed
10-25 02:27 40m -16 / - RD0L/P - / -16 2 Partial capture
10-21 14:56 40m -14 / - DK1XAM - / -15 4 ✓ Closing fragment
10-21 14:55 40m -16 / -8 UB6OAJ -10 / 0 4 ✓ Full exchange observed
10-21 14:27 40m -10 / - BG0FQU - / - 4 Partial capture
10-20 22:54 40m -16 / -25 PD0LBY -3 / -12 5 ✓ Full exchange observed
10-20 22:46 40m -7 / -23 EA2A -10 / -3 5 ✓ Full exchange observed
10-20 22:38 40m -7 / - IZ3KLB - / -6 6 ✓ Closing fragment
10-20 22:36 40m -15 / - G0MGK - / -19 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
030815 -20 2353  UB3KGW OD5KU KM73 (x2)
031800 -15  955  UB3KGW TC8TR KM69 (x8)
033700  +2 1583  UB3KGW PD1DBL JO22 (x5)
10m
UTC    dB Audio  Message
093830 -12 1968  UB3KGW R7DX R-24 (x3)
094400 -19 1489  UB3KGW RV6F 73
095615  -9 2484  UB3KGW F5GPE JN25 (x3)
101645  -7 2637  UB3KGW F1PBZ +03 (x3)
80m
UTC    dB Audio  Message
232645  +4 2431  UB3KGW RA3ZDU R+01
232700 -22 2431  RA3ZDU UB3KGW RR73
232715  +8 2431  UB3KGW RA3ZDU 73
232845 -13 2431  UB3KGW RL3QGD KO91
233330 -20 2431  CQ UB3KGW LO01                        a1
233445  +4 2805  UB3KGW SV1HFE KM18
233500 -19 2431  RN4AQ UB3KGW -15
233545  +1 2805  UB3KGW SV1HFE KM18 (x5)
234100  -8 2431  CQ UB3KGW LO01 (x3)
160m
UTC    dB Audio  Message
202430  +3 2906  UB3KGW RT6Z KN98
202500 -10 1690  UB3KGW RU3T R-16 (x2)
202530 -11  802  UB3KGW R2HB KO85
202600  -6 1691  UB3KGW RU3T R-16 (x2)
202700  +7 2906  UB3KGW RT6Z -16 (x2)
202845 -23 2124  CQ UB3KGW LO01 (x2)
200415  -1  761  UB3KGW R5AV -12
200515 -15 1300  UB3KGW R6FFB LN14 (x2)
200645 -15 2145  UB3KGW R5BM KO85
013300 -18 2166  UB3KGW RX6LG -22
60m
UTC    dB Audio  Message
170130  -9 2340  CQ UB3KGW LO01
170145 -16 1580  UB3KGW ON7KEI JO21
170145  +2  418  UB3KGW GW4FRX IO82
170145  +0 2339  UB3KGW DD6ZV JO62
170215  +1  418  UB3KGW GW4FRX IO82
170215  +8 2339  UB3KGW DD6ZV JO62
170230  -8 2340  DD6ZV UB3KGW -18
170245 -12 1580  UB3KGW ON7KEI JO21
170245  +8 2339  UB3KGW DD6ZV R-15
170300  -5 2340  DD6ZV UB3KGW RR73
170315  +4 2339  UB3KGW DD6ZV 73
170345  +4  418  UB3KGW GW4FRX IO82 (x2)
170430 -16 2340  GW4FRX UB3KGW RR73
170445  +1  418  UB3KGW GW4FRX 73
20m
UTC    dB Audio  Message
033730 -18 1092  WX4DAT UB3KGW -13
132430  -1 1012  CQ UB3KGW LO01                        a1 (x3)
132630  -1 1012  BH4THI UB3KGW LO01
132730  +8 1012  CQ UB3KGW LO01 (x4)
132930  +7 1012  OH2GT UB3KGW -15 (x5)
133230  +6 1012  UA1ZQN UB3KGW -02

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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