BA4II — 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: China Most frequent locator attributed to this token: OM86

Receiver-side FT8 activity involving BA4II, decoded by SO8OO in southeastern Poland. 64 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-08-12 and 2026-09-16.

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 64 FT8 messages attributed to BA4II as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (72%), followed by 20 m (20%) and 80 m (8%). Most decodes (97%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's moderate S/N range (64%); the estimated median was -12 dB.

Overview

64
Messages attributed
8
UTC dates decoded
19
Active 15-min windows
-12 dB
Estimated median S/N

Bands

First attributed message: 2026-08-12
Last attributed message: 2026-09-16 22:14 UTC

Observed FT8 message patterns

Attributed sample
64 messages
Active dates
8 UTC dates
Estimated median S/N
-12 dB
Estimated 10th-90th percentile
-17 to -8 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 11, moderate (-15 to -9 dB) 41, strong (≥ -8 dB) 12.

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 BA4II

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
OM86 · 47 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,328 km (approx.)
Last such locator decoded
2026-09-16 22:11 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 UTCBandBA4II S/NCounterpartCounterpart S/NMsgsCapture
10-16 14:01 40m - / - OH3MB +8 / - 2 Partial capture
10-16 13:06 40m - / -5 OI7AX -8 / - 2 ✓ Closing fragment
10-15 13:47 40m - / -22 RA1QEA -10 / - 6 Partial capture
10-04 22:17 40m - / - UR9QQ -15 / - 2 Partial capture
10-04 22:11 40m - / - CT1FIU -6 / - 3 Partial capture
10-04 22:10 40m - / - IU1MRG -14 / - 2 Partial capture
10-04 22:07 40m - / - K2ZJ -6 / - 5 Partial capture
10-04 22:02 40m - / - DL7VGU +16 / - 6 Partial capture
10-04 22:02 40m - / - IU1MRG -12 / - 4 Partial capture
10-04 22:01 40m - / - K2ZJ -5 / - 4 Partial capture
10-04 21:59 40m - / - IU1MRG -12 / - 2 Partial capture
10-04 21:55 40m - / -15 I7OXH -15 / - 5 ✓ Closing fragment
09-19 21:24 40m - / - DJ0MAB +4 / - 2 Partial capture
09-19 21:11 40m - / - F1MLN +4 / - 2 Partial capture
09-19 21:09 40m - / - F5PBG -4 / - 2 Partial capture
09-19 20:47 40m - / -19 CN8NS -5 / - 3 Partial capture
09-17 21:47 40m - / -11 4X5JK -2 / - 2 ✓ Closing fragment
09-16 22:21 40m - / - EA1AOC -11 / - 4 Partial capture
09-16 22:14 40m - / - WA1T -18 / - 2 Partial capture
09-15 21:26 40m -7 / -13 ON6AA +15 / -11 4 ✓ Full exchange observed
09-15 21:20 40m -8 / - 4K6FO - / - 13 Partial capture
09-15 21:17 40m -9 / - 4K6FO - / - 2 Partial capture
09-15 21:15 40m - / -7 PI4DX +10 / - 2 ✓ Closing fragment
09-11 20:16 40m - / - F5PBG -4 / - 4 Partial capture
09-10 17:12 40m - / - DL6NDN +2 / - 4 Partial capture
09-10 17:12 40m - / - PD0PY -16 / - 2 Partial capture
09-10 17:09 40m - / -14 PA5VL -8 / - 12 Partial capture
09-07 21:58 40m -11 / - Z86GQD - / - 11 Partial capture
09-07 21:56 40m -12 / - E78W - / - 2 Partial capture
09-07 21:45 40m -10 / - RA4FUT -2 / - 2 ✓ Closing observed
09-07 21:44 40m - / 0 IK4ANJ -10 / - 2 Partial capture
09-07 21:41 40m - / - PI4TX -11 / - 4 Partial capture
09-07 21:41 40m -12 / - SP7TF - / -9 2 ✓ Closing fragment
09-07 21:40 40m -14 / -16 LZ4VR -5 / -12 7 ✓ Full exchange observed
09-07 21:40 40m - / 0 DK7ZT -1 / - 4 Partial capture
09-07 21:39 40m - / - UR4QWW -3 / - 5 Partial capture
09-07 21:38 40m - / -6 SP5LST -17 / - 3 ✓ Closing fragment
09-07 21:36 40m - / -7 DM2SP +2 / - 4 ✓ Closing fragment
09-07 21:36 40m - / -9 EA8UP +3 / - 2 ✓ Closing fragment
09-07 21:35 40m - / - RL3K 0 / - 2 Partial capture
09-07 21:30 40m - / -20 EA1CQ +1 / - 2 Partial capture
09-07 21:28 40m - / -14 YO3FRI +8 / - 3 ✓ Closing fragment
09-07 21:24 40m - / -15 SN40KZE +17 / - 3 Partial capture
09-07 21:23 40m - / -16 EA1CQ 0 / - 2 Partial capture
09-07 21:21 40m -16 / -17 HB9EBM +15 / -15 6 ✓ Full exchange observed
09-07 21:19 40m -14 / - D2ACE - / - 2 Partial capture
09-07 21:12 40m - / -15 TA7ARH +5 / - 3 ✓ Closing fragment
09-07 21:11 40m - / -17 EW8DU +6 / - 2 Partial capture
09-07 21:08 40m - / -2 TA2EE -22 / - 3 Partial capture
09-07 20:23 40m - / -17 GJ0KYZ +6 / - 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
221400  -7 2431  BA4II EK/RX3DPK -12
221700 -14 1251  BA4II UR9QQ KN77 (x2)
134745 -14  933  BA4II RA1QEA LO19 (x7)
135330  +7 2788  BA4II R80SAA RR73
130615  -7 2590  BA4II OI7AX -05 (x2)
140115  +8  460  BA4II OH3MB KP20 (x2)
20m
UTC    dB Audio  Message
183030  +5 1802  BA4II MM0GTU RR73
183300 -11 2582  BA4II MI0JZZ -18 (x2)
162215  +6  638  BA4II F5IXN JN23 (x4)
163415 -19  639  ZS6OB BA4II OM86
134145  -6 2117  BA4II UA7T -22 (x3)
135445 -23 2199  BA4II VU2ORO -15
141745  -8 1928  BA4II RU9AD -08 (x2)
142100 -14 2250  BA4II R9LM -16
80m
UTC    dB Audio  Message
185945 -13  550  YL2NX BA4II RRR (x3)
190115  -9  550  BH4GWF BA4II +07 (x2)
230130  +6 2417  BA4II 9A4ZM JN86 (x3)
170230  +0 2597  BA4II DL1JHR JO60 (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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