UB1OBV — 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: LP31

Receiver-side FT8 activity involving UB1OBV, decoded by SO8OO in southeastern Poland. 622 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 28 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-23.

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 622 FT8 messages attributed to UB1OBV as the transmitting token by decoded message structure across 28 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (82%), followed by 80 m (12%) and 40 m (4%). Most decodes (94%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

622
Messages attributed
28
UTC dates decoded
88
Active 15-min windows
-13 dB
Estimated median S/N

Bands

160m · 16 80m · 73 40m · 25 20m · 508
First attributed message: 2026-06-06
Last attributed message: 2026-10-23 20:30 UTC

Observed FT8 message patterns

Attributed sample
622 messages
Active dates
28 UTC dates
Estimated median S/N
-13 dB
Estimated 10th-90th percentile
-21 to -2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 217, moderate (-15 to -9 dB) 201, strong (≥ -8 dB) 204.

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.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with UB1OBV in decoded directed-looking exchanges:

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 UB1OBV

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
LP31 · 423 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
2,014 km (approx.)
Last such locator decoded
2026-10-23 20:29 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 UTCBandUB1OBV S/NCounterpartCounterpart S/NMsgsCapture
10-23 21:11 160m - / -5 UA3AGW +13 / - 2 ✓ Closing fragment
10-23 20:29 160m -14 / -8 R3RZ -3 / -4 4 ✓ Full exchange observed
10-23 20:28 160m -12 / - 4J3DJ - / - 2 Partial capture
10-23 20:21 160m - / - RZ6BS -21 / - 2 Partial capture
10-15 19:13 40m - / - PC6A -4 / - 2 Partial capture
10-14 19:41 160m - / -24 DK7ZT -11 / - 5 Partial capture
10-14 19:30 160m - / -24 YL2EA -7 / - 3 ✓ Closing fragment
10-14 19:27 160m - / - S59A +9 / - 3 Partial capture
10-14 19:24 160m -18 / - R9FAI - / -2 2 ✓ Closing fragment
10-12 19:42 40m - / -7 RL3FA -16 / - 2 ✓ Closing fragment
10-11 17:44 40m - / -15 G3FCA -16 / - 2 ✓ Closing fragment
10-10 17:21 40m - / -13 DK8HC/P -7 / - 2 Partial capture
10-10 17:18 40m - / -10 RL2Y -7 / - 2 Partial capture
10-09 18:23 160m - / - R3SV -11 / - 2 Partial capture
09-22 18:44 40m - / -20 DG3DAF -2 / - 4 ✓ Closing fragment
09-22 18:34 40m - / -18 R3PMI +6 / - 2 Partial capture
09-22 18:31 40m - / -13 R1LH -10 / - 2 ✓ Closing fragment
09-21 18:47 40m - / - M8FQT -3 / - 3 Partial capture
09-21 18:41 40m - / -14 R2GDV -6 / - 3 ✓ Closing fragment
09-21 18:39 40m -24 / -9 SP3FXC +11 / - 5 ✓ Closing observed
09-18 18:17 40m - / -25 OK2BXD -2 / - 2 Partial capture
09-18 18:14 40m - / - OK2BXD -2 / - 2 Partial capture
09-14 18:38 80m - / -13 R2SDZ +5 / - 3 ✓ Closing fragment
09-14 18:30 80m - / -22 R9OOF -20 / - 2 ✓ Closing fragment
09-14 18:19 40m -18 / -18 EW8ME +4 / - 3 ✓ Closing observed
09-14 17:55 40m -17 / -16 RU3QR +2 / -7 4 Partial capture
09-14 17:53 40m -20 / - R3PLN -9 / - 2 ✓ Closing observed
09-14 17:48 40m - / -17 R2PU +1 / - 2 ✓ Closing fragment
09-13 18:12 40m -12 / -8 R3TAW -9 / - 5 ✓ Closing observed
09-13 18:00 40m - / -18 F4HEA -4 / - 3 ✓ Closing fragment
09-12 16:07 40m - / -15 R4HMI -12 / - 2 ✓ Closing fragment
09-12 16:05 40m - / -20 PI4TX -15 / - 3 Partial capture
09-12 16:01 40m - / - UB6LLI -8 / - 2 Partial capture
09-12 15:55 40m - / +2 RA1TR 0 / - 2 ✓ Closing fragment
09-02 19:41 40m - / -15 RA6OF -20 / - 2 ✓ Closing fragment
09-01 18:43 40m - / -12 DL6EL +1 / - 3 ✓ Closing fragment
09-01 18:23 40m - / -16 PA3FR -4 / - 4 ✓ Closing fragment
08-30 17:47 40m - / -11 UA9AAE -10 / - 2 ✓ Closing fragment
08-30 17:44 40m - / -6 R4DB -3 / - 2 ✓ Closing fragment
08-30 17:44 40m - / -17 IU2VBP -6 / - 2 Partial capture
08-30 17:41 40m - / -11 IU5SCG -14 / - 3 ✓ Closing fragment
08-30 11:09 20m - / -2 OT8T -3 / - 5 Partial capture
08-30 11:07 20m - / -14 IK4LZH +16 / - 4 ✓ Closing fragment
08-29 19:06 20m - / +7 IV3FAS -3 / - 3 ✓ Closing fragment
08-29 18:26 20m - / - EA3GXK -4 / - 2 Partial capture
08-29 18:22 20m - / - DF8TN -6 / - 4 Partial capture
08-26 21:09 40m -17 / -13 G7NUT -11 / -5 5 ✓ Full exchange observed
08-26 21:08 40m -20 / - R2EA/P -11 / - 2 ✓ Closing observed
08-26 21:04 40m -14 / -15 UB3XCC -8 / +4 4 ✓ Full exchange observed
08-26 21:03 40m -9 / - PY1GB - / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

160m 
UTC    dB Audio  Message
194315 -15  823  UB1OBV DK7ZT -24
201930 -14 1047  RA4CFX UB1OBV LP31
202145 -24 2077  UB1OBV RZ6BS KN96 (x2)
202230 -17 1000  RA4CFX UB1OBV LP31
202245 -21 2582  UB1OBV R4NBV -17
202515 -10 1452  UB1OBV RJ3DC KO95
202800 -15 1002  4J3DJ UB1OBV LP31 (x2)
202930 -13 1001  R3RZ UB1OBV LP31
202945  -3 1931  UB1OBV R3RZ -08
203000 -15 1001  R3RZ UB1OBV R-04
203015  -3 1931  UB1OBV R3RZ RR73
211130 +14 1171  UB1OBV UA3AGW -05 (x2)
40m 
UTC    dB Audio  Message
171845  -7 1436  UB1OBV RL2Y KO62 (x2)
172145  -4  492  UB1OBV DK8HC/P -13 (x2)
170200  -9  332  UB1OBV R8CKD R-07
170700 -10 1954  UB1OBV DL6ZOG JO52
170900  +1  955  UB1OBV RX3DQX 73
172130  -8 1955  UB1OBV DL6ZOG JO52
174430 -14 2186  UB1OBV G3FCA -15 (x2)
175000  -5  840  UB1OBV OT8T JO21
194200 -19 1412  UB1OBV RL3FA -07 (x2)
191300  -4 1723  UB1OBV PC6A JO21 (x2)
80m 
UTC    dB Audio  Message
192645 -24 1097  SP3BVI UB1OBV -05
205115 -20 1165  CQ UB1OBV LP31 (x2)
205245 -24 1163  UB3DRL UB1OBV LP31
205300  -7 2004  UB1OBV UB3DRL -17
205315 -18 1164  UB3DRL UB1OBV R-03
205330  -1 2003  UB1OBV UB3DRL RR73
205415 -24 1165  CQ UB1OBV LP31 (x2)
183000 -16 1594  UB1OBV R9OOF -22 (x2)
183345 -18 1260  CQ UB1OBV LP31                        a1
183830  +3 1803  UB1OBV R2SDZ KO94 (x3)
20m 
UTC    dB Audio  Message
182615  -7 1250  UB1OBV EA3GXK IM98 (x2)
182815 -12 2078  UB1OBV DG5PI 73
190645  -2 1250  UB1OBV IV3FAS JN65 (x3)
110715 +14  463  UB1OBV IK4LZH JN54 (x4)
110945  +6 1772  UB1OBV OT8T JO21 (x5)

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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