OT8B — 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: Belgium Most frequent locator attributed to this token: JO21

Receiver-side FT8 activity involving OT8B, decoded by SO8OO in southeastern Poland. 97 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 14 UTC dates in the available aggregate history. Observed between 2026-06-20 and 2026-11-06.

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 97 FT8 messages attributed to OT8B as the transmitting token by decoded message structure across 14 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (69%), followed by 80 m (19%) and 10 m (9%). Most decodes (75%) fell within the six-hour window 01:00-07:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

97
Messages attributed
14
UTC dates decoded
29
Active 15-min windows
-14 dB
Estimated median S/N

Bands

80m · 18 40m · 67 20m · 3 10m · 9
First attributed message: 2026-06-20
Last attributed message: 2026-11-06 06:28 UTC

Observed FT8 message patterns

Attributed sample
97 messages
Active dates
14 UTC dates
Estimated median S/N
-14 dB
Estimated 10th-90th percentile
-20 to -4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 39, moderate (-15 to -9 dB) 27, strong (≥ -8 dB) 31.

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 OT8B 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 OT8B

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
JO21 · 59 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,192 km (approx.)
Last such locator decoded
2026-11-06 06:28 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 UTCBandOT8B S/NCounterpartCounterpart S/NMsgsCapture
11-06 06:28 80m -20 / - SP0YAGI - / - 2 Partial capture
11-06 05:46 160m - / -17 9A5E +2 / - 2 ✓ Closing fragment
11-05 08:09 40m -19 / - F4MXT/P - / - 2 Partial capture
11-05 05:49 160m - / -5 HB9EFK -1 / - 2 ✓ Closing fragment
11-03 11:03 40m - / - DH2NJS -10 / - 5 Partial capture
11-03 11:03 40m - / - OE3FVU 0 / - 6 Partial capture
11-03 10:42 40m -18 / - PF40EUDXF - / -4 2 Partial capture
11-03 10:17 10m - / -10 7Q6M -15 / - 4 Partial capture
11-03 09:28 40m -18 / - DL40EUDXF - / -14 4 Partial capture
11-02 20:34 80m - / -6 PC40EUDXF -13 / - 7 Partial capture
11-02 20:29 80m - / -6 PC40EUDXF -12 / - 5 Partial capture
11-02 20:24 80m - / -6 PC40EUDXF -11 / - 3 Partial capture
11-02 20:21 80m - / -6 PC40EUDXF -12 / - 3 Partial capture
11-02 19:28 80m - / -6 PC40EUDXF -14 / - 3 Partial capture
11-02 19:17 160m - / - UA3GX -9 / - 4 Partial capture
11-02 19:16 160m - / -18 DK7ZT -6 / - 2 ✓ Closing fragment
11-02 19:15 160m - / -17 F4FTV -12 / - 2 ✓ Closing fragment
11-02 19:12 160m - / -14 OE5RLP +9 / - 3 ✓ Closing fragment
11-02 18:30 40m -11 / -2 EA8UP -15 / -16 7 ✓ Full exchange observed
11-02 06:28 80m -17 / - F5MXH - / -2 2 ✓ Closing fragment
11-02 06:27 80m - / -6 DL2HUC -2 / - 3 ✓ Closing fragment
11-02 06:27 80m - / - OK2CNI +7 / - 7 Partial capture
11-02 06:26 80m - / +1 G7RHF -22 / - 2 ✓ Closing fragment
11-01 06:36 40m -11 / - R2FDP - / - 2 ✓ Closing fragment
10-31 06:09 40m -18 / - EH6DSY - / - 2 Partial capture
10-31 05:56 80m -6 / 0 DL2HT +5 / -6 8 ✓ Full exchange observed
10-31 05:54 80m - / -14 DO9YU -12 / - 2 ✓ Closing fragment
10-31 05:51 80m +1 / -9 DO5HOK -13 / - 3 ✓ Closing observed
10-30 15:05 40m -9 / -11 OE6MNE -11 / -15 7 Partial capture
10-28 08:39 40m -14 / - PA/DK4DAX - / - 2 Partial capture
09-06 05:01 40m -5 / - T77NC - / - 15 Partial capture
09-06 04:56 40m -4 / - T77NC - / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
202900 -14  612  OT8B PC40EUDXF -06 (x13)
062800 -19 1094  SP0YAGI OT8B JO21 (x2)
160m 
UTC    dB Audio  Message
191215  +8  501  OT8B OE5RLP JN77 (x3)
191515  -8 1415  OT8B F4FTV -17 (x2)
191615  -5 1757  OT8B DK7ZT -18 (x2)
191745  -9 1077  OT8B UA3GX KO92 (x4)
054945  +3 2566  OT8B HB9EFK -05 (x2)
054645  +2 2133  OT8B 9A5E -17 (x2)
40m 
UTC    dB Audio  Message
110330  +2 1278  OT8B OE3FVU JN78
110330 -11  389  OT8B DH2NJS JO50
110400  -2 1278  OT8B OE3FVU JN78
110415  -8  389  GJ0KYZ OT8B 73
110430  +0 1278  OT8B OE3FVU JN78
110430  -9  389  OT8B DH2NJS JO50
110500  -3 1278  OT8B OE3FVU JN78
110500 -10  389  OT8B DH2NJS JO50
110530  +1 1278  OT8B OE3FVU JN78
110530  -8  389  OT8B DH2NJS JO50 (x3)
080915 -21 1425  F4MXT/P OT8B JO21 (x2)
081100  -5 2671  OT8B PD40EUDXF +22
10m 
UTC    dB Audio  Message
101700 -12 1178  OT8B 7Q6M -10 (x4)

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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