9A4BP/P — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Croatia Most frequent locator attributed to this token: JN73

Receiver-side FT8 activity involving 9A4BP/P, decoded by SO8OO in southeastern Poland. 918 FT8 messages attributed to this token as transmitter, on 80m, 40m, 10m, across 5 UTC dates in the available aggregate history. Observed between 2026-08-13 and 2026-08-19.

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 918 FT8 messages attributed to 9A4BP/P as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (87%), followed by 40 m (11%) and 10 m (2%). Most decodes (57%) fell within the six-hour window 02:00-08:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

918
Messages attributed
5
UTC dates decoded
58
Active 15-min windows
-10 dB
Estimated median S/N

Bands

First attributed message: 2026-08-13
Last attributed message: 2026-08-19 07:19 UTC

Observed FT8 message patterns

Attributed sample
918 messages
Active dates
5 UTC dates
Estimated median S/N
-10 dB
Estimated 10th-90th percentile
-19 to -2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 224, moderate (-15 to -9 dB) 330, strong (≥ -8 dB) 364.

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 9A4BP/P

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
JN73 · 669 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
883 km (approx.)
Last such locator decoded
2026-08-19 07:19 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 UTCBand9A4BP/P S/NCounterpartCounterpart S/NMsgsCapture
08-19 09:34 40m - / -17 DL7VOG -12 / - 3 Partial capture
08-19 08:47 40m - / -9 HA7JLR -24 / - 2 Partial capture
08-19 08:20 40m - / - DL7EDU -10 / - 2 Partial capture
08-19 08:02 40m - / -2 HA1ZW -20 / - 6 ✓ Closing fragment
08-19 07:54 40m - / - HA1ZW -18 / - 4 Partial capture
08-19 07:25 40m - / +8 IV3VFP -22 / - 2 ✓ Closing fragment
08-19 07:08 40m - / - DL9MAC -19 / - 2 ✓ Closing fragment
08-19 06:50 40m -19 / - <...> - / - 2 Partial capture
08-19 06:44 40m - / -7 DD5KP -11 / - 3 Partial capture
08-19 06:38 40m -14 / - SV1PLR - / -18 3 Partial capture
08-19 06:31 40m - / -9 HG3FMZ -6 / - 3 ✓ Closing fragment
08-19 06:21 40m - / +2 SQ5CZJ -20 / - 2 Partial capture
08-19 06:19 40m - / -11 RN2F -8 / - 2 ✓ Closing fragment
08-19 06:04 40m -16 / - <...> - / - 3 Partial capture
08-19 05:53 40m - / -8 HA1ZW -18 / - 5 ✓ Closing fragment
08-19 05:47 40m -17 / -5 SP1JQJ -8 / - 4 ✓ Closing observed
08-19 05:46 40m - / -10 UR4UM -20 / - 2 Partial capture
08-19 05:45 40m -18 / - IZ5EME - / -11 2 ✓ Closing fragment
08-19 05:30 40m - / - EU6KA -20 / - 2 Partial capture
08-19 05:28 40m - / -2 DL8WEM -8 / - 3 ✓ Closing fragment
08-19 05:10 40m -12 / - HB9DWR - / -16 2 Partial capture
08-19 05:07 40m -17 / - G8IXM - / -16 4 Partial capture
08-19 05:01 40m -16 / - HB9DWR - / -17 4 Partial capture
08-19 04:48 40m - / +2 F5SJC -13 / - 2 ✓ Closing fragment
08-19 04:25 40m -15 / - DK3TNA - / -11 2 ✓ Closing fragment
08-19 03:47 40m - / -19 RV3YN -17 / - 3 ✓ Closing fragment
08-19 03:44 40m - / -23 US3EW -7 / - 3 ✓ Closing fragment
08-19 02:34 40m - / - R2RCQ -20 / - 2 Partial capture
08-19 02:04 40m - / -14 MI0NWA -13 / - 3 ✓ Closing fragment
08-19 00:49 40m - / - M7LYG -19 / - 2 ✓ Closing fragment
08-19 00:18 40m - / +6 F6BHK -14 / - 2 ✓ Closing fragment
08-19 00:17 40m - / -12 RN6HK -15 / - 5 ✓ Closing fragment
08-19 00:05 40m - / -3 EA3AAY -18 / - 3 ✓ Closing fragment
08-17 13:00 10m -20 / - <...> - / - 2 Partial capture
08-17 12:49 10m - / - TA2GG -16 / - 2 Partial capture
08-17 12:38 10m -22 / - UX7QV - / -11 2 ✓ Closing fragment
08-17 11:40 10m - / -8 TA2GG -12 / - 4 ✓ Closing fragment
08-17 00:10 80m 0 / - EA7AH - / -15 3 ✓ Closing fragment
08-17 00:08 80m -1 / -12 EW8CW -8 / -12 4 ✓ Full exchange observed
08-17 00:00 80m - / -14 SP2TQQ -12 / - 3 ✓ Closing fragment
08-16 23:57 80m -9 / - EA8AR - / -17 2 Partial capture
08-16 23:55 80m -7 / -5 GI4SNA -8 / - 3 ✓ Closing observed
08-16 23:49 80m -1 / -16 UT5ZC +2 / 0 6 ✓ Full exchange observed
08-16 23:38 80m -4 / - IU5TSN - / -10 2 ✓ Closing fragment
08-16 23:33 80m -6 / - IU5TSN - / -9 2 ✓ Closing fragment
08-16 23:32 80m -6 / -13 IT9IST -24 / -9 4 ✓ Full exchange observed
08-16 23:29 80m -10 / 0 IU0NAD -9 / - 5 ✓ Full exchange observed
08-16 23:22 80m -6 / -19 UA6AR +4 / +1 12 ✓ Full exchange observed
08-16 23:21 80m - / +7 OH7FES -20 / - 2 Partial capture
08-16 23:20 80m -6 / -5 DK7QJ -17 / -9 5 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
075600 -21 1343  9A4BP/P HA1ZW JN86 (x7)
082000  -8 1728  9A4BP/P DL7EDU JO62 (x2)
084730 -24 1529  9A4BP/P HA7JLR JN97 (x2)
090300 -17 2430  9A4BP/P HA0AA KN07
093400 -12 2571  9A4BP/P DL7VOG -17 (x3)
10m
UTC    dB Audio  Message
123745 -17 1729  CQ 9A4BP/P JN73 (x2)
123845 -20 1729  UX7QV 9A4BP/P -11 (x2)
124045 -23 1729  CQ 9A4BP/P JN73 (x4)
124315 -15 1104  9A4BP/P RZ6ASO -07
124315 -22 1729  CQ 9A4BP/P JN73 (x2)
124915 -15 1112  9A4BP/P TA2GG KM59 (x2)
130045 -18 1729  <...> 9A4BP/P (x2)
80m
UTC    dB Audio  Message
000845  -4 1775  EW8CW 9A4BP/P -12
000900 -12 1647  9A4BP/P EW8CW R-12
000915  +2 1775  EW8CW 9A4BP/P RR73
000945  +0 1775  CQ 9A4BP/P JN73
001015  +0 1775  EA7AH 9A4BP/P -15 (x3)
001145  +2 1775  CQ 9A4BP/P JN73 (x8)

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.

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