UB6OAJ — 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: KN98

Receiver-side FT8 activity involving UB6OAJ, decoded by SO8OO in southeastern Poland. 1,704 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 84 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 1,704 FT8 messages attributed to UB6OAJ as the transmitting token by decoded message structure across 84 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (62%), followed by 40 m (18%) and 160 m (11%). Most decodes (97%) fell within the six-hour window 14:00-20:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (72%); the estimated median was -5 dB.

Overview

1,704
Messages attributed
84
UTC dates decoded
302
Active 15-min windows
-5 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-10-22 17:52 UTC

Observed FT8 message patterns

Attributed sample
1,704 messages
Active dates
84 UTC dates
Estimated median S/N
-5 dB
Estimated 10th-90th percentile
-13 to +4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 78, moderate (-15 to -9 dB) 407, strong (≥ -8 dB) 1,219.

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 UB6OAJ

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
KN98 · 15 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,257 km (approx.)
Last such locator decoded
2026-10-16 18:57 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 UTCBandUB6OAJ S/NCounterpartCounterpart S/NMsgsCapture
10-22 17:06 80m -10 / -3 R3PLT -12 / -2 4 ✓ Full exchange observed
10-22 17:03 80m -6 / - R9HEB - / -18 2 Partial capture
10-22 16:59 80m -14 / - RG7O - / -8 2 Partial capture
10-22 16:54 80m - / - EW4DX -5 / - 3 ✓ Closing fragment
10-21 17:03 160m - / -1 RQ3M -6 / - 2 ✓ Closing fragment
10-21 14:58 40m -5 / - UA3VBD - / -14 3 Partial capture
10-21 14:56 40m -10 / - R9OON - / -19 2 Partial capture
10-21 14:55 40m -10 / 0 UB3KGW -16 / -8 4 ✓ Full exchange observed
10-21 14:53 40m -8 / - RA9UES - / -9 2 ✓ Closing fragment
10-21 14:51 40m -9 / -5 RA1PO -20 / -10 2 Partial capture
10-21 14:45 40m - / +1 RA5AD -11 / - 2 ✓ Closing fragment
10-21 14:43 40m -8 / - EV1R +10 / -4 5 ✓ Full exchange observed
10-21 14:41 40m -6 / -5 R7RC -7 / - 4 ✓ Closing observed
10-21 14:40 40m -10 / - RA0SMS - / -9 2 ✓ Closing fragment
10-21 14:39 40m - / -1 R3GI 0 / - 2 ✓ Closing fragment
10-18 16:40 80m -10 / -2 RV4LD -3 / -6 4 ✓ Full exchange observed
10-17 17:36 40m -9 / -4 RK4PR -14 / -8 4 ✓ Full exchange observed
10-17 17:28 40m -8 / -4 GI3PXT -12 / -18 4 ✓ Full exchange observed
10-17 17:21 40m -7 / -7 OE6TNO +5 / - 3 ✓ Closing observed
10-17 17:07 40m -6 / +6 S59SV +12 / -7 4 ✓ Full exchange observed
10-17 17:00 80m - / +2 RV3X +3 / - 3 Partial capture
10-17 16:53 80m - / 0 RW3DC -2 / - 2 ✓ Closing fragment
10-17 16:50 80m - / -8 RD9T -10 / - 2 ✓ Closing fragment
10-17 15:21 160m - / -1 RW3O -6 / - 2 ✓ Closing fragment
10-16 18:41 160m - / -18 S59A +2 / - 4 ✓ Closing fragment
10-16 18:38 160m - / -11 R9FAI -22 / - 2 ✓ Closing fragment
10-15 16:08 80m -10 / -6 R9CB -12 / -11 4 ✓ Full exchange observed
10-15 15:57 80m -8 / +5 UB8A -14 / -1 5 ✓ Full exchange observed
10-15 15:57 80m -8 / - RA9HO - / -12 2 Partial capture
10-15 15:56 80m -6 / -3 RA5AK -10 / -9 4 ✓ Full exchange observed
10-15 15:48 80m -10 / - RA9CIN - / -12 2 ✓ Closing fragment
10-15 15:42 80m -9 / - RU4F - / -8 2 ✓ Closing fragment
10-14 18:39 80m - / -17 R2BPS -19 / - 2 Partial capture
10-14 18:26 80m -11 / - RW3YS - / -12 2 ✓ Closing fragment
10-14 17:40 160m -14 / - RZ0SW - / -17 3 Partial capture
10-13 17:49 160m -13 / - 4L7T - / -18 2 Partial capture
10-13 17:33 160m - / -3 RX3PX -16 / - 2 ✓ Closing fragment
10-12 16:37 80m - / -10 R9FE -8 / - 2 ✓ Closing fragment
10-12 16:28 80m -8 / - UA3ON - / -3 2 Partial capture
10-12 16:26 80m -4 / - RD3K +2 / -1 4 ✓ Full exchange observed
10-12 16:23 80m -10 / - UA4QK - / -12 2 Partial capture
10-12 16:16 80m -5 / - R6WAO - / -13 2 ✓ Closing fragment
10-12 16:14 80m +2 / - RF9C - / -10 2 ✓ Closing fragment
10-12 16:13 80m -15 / - S55X - / -18 2 Partial capture
10-12 16:11 80m -12 / -3 RW4HD -4 / -2 4 ✓ Full exchange observed
10-12 16:09 80m -1 / - R6WAO - / -12 3 Partial capture
10-12 16:07 80m -3 / - IV3SKB - / -4 2 Partial capture
10-12 16:04 80m -2 / - UA9D -21 / -11 3 ✓ Closing observed
10-12 16:01 80m -4 / - R3ND - / -13 3 ✓ Closing fragment
10-12 15:59 80m -11 / -4 UA4CCH -9 / -3 7 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
165415  -7  796  UB6OAJ EW4DX KO23 (x3)
165915 -13  559  RG7O UB6OAJ -08 (x2)
170330  -6  614  R9HEB UB6OAJ -18 (x2)
170630 -10  615  R3PLT UB6OAJ -02
170645 -10 1151  UB6OAJ R3PLT R-03
170700 -11  615  R3PLT UB6OAJ RR73
170715 -13 1152  UB6OAJ R3PLT 73
170800 -12  615  R2FC UB6OAJ -04
171115 -13  555  R3TS UB6OAJ -03
174845 -14  556  R4DB UB6OAJ -01
175245  -9  556  R9FAI UB6OAJ -08
160m
UTC    dB Audio  Message
183915  -8 1510  UB6OAJ UD3T R-08
184145  -4 1704  UB6OAJ S59A JN76 (x4)
184445 -12  404  UB6OAJ R4II 73
185700  -6  451  CQ UB6OAJ KN98 (x2)
185845  -9  452  4J3DJ UB6OAJ -02
190430 -10  796  UB6OAJ RU3T RR73
152130  -6 1696  UB6OAJ RW3O R-01 (x2)
170345  -7 1910  UB6OAJ RQ3M R-01 (x2)
154600 -17 2395  UB6OAJ RF9C R-19
40m
UTC    dB Audio  Message
145145  -9  613  RA1PO UB6OAJ -10
145200 -20 1965  UB6OAJ RA1PO R-05
145300 -10  613  RA9UES UB6OAJ -09 (x2)
145400  -6  613  SP/DG1HVL/P UB6OAJ -04
145415 -15 1095  UB6OAJ R7CA/6 R-04
145515 -11  613  UB3KGW UB6OAJ -08
145530 -15 1185  UB6OAJ UB3KGW R+00
145545 -10  613  UB3KGW UB6OAJ RR73
145600 -17 1185  UB6OAJ UB3KGW 73
145615 -11  612  R9OON UB6OAJ -19 (x2)
145800  -4  613  UA3VBD UB6OAJ -14 (x3)
20m
UTC    dB Audio  Message
083645  +5 1392  UB6OAJ IZ0AEZ R-04 (x2)
080345 -14 2437  UB6OAJ R3KLE 73
080430 -13  525  R6DZD UB6OAJ RR73
162345 -10  536  EI5HV UB6OAJ -11
162415 -10  536  CR7BRV UB6OAJ -10
162700  -8  537  RI0FA UB6OAJ -14 (x4)
163115 -11  537  RA9AIF UB6OAJ -07
175200  -4 2240  UB6OAJ RA7T -05 (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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