OH3NXW — 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: Finland Most frequent locator attributed to this token: KP11

Receiver-side FT8 activity involving OH3NXW, decoded by SO8OO in southeastern Poland. 2,432 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 66 UTC dates in the available aggregate history. Observed between 2026-06-25 and 2026-11-05.

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 2,432 FT8 messages attributed to OH3NXW as the transmitting token by decoded message structure across 66 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (66%), followed by 160 m (19%) and 40 m (8%). Most decodes (60%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (87%); the estimated median was +3 dB.

Overview

2,432
Messages attributed
66
UTC dates decoded
237
Active 15-min windows
+3 dB
Estimated median S/N

Bands

First attributed message: 2026-06-25
Last attributed message: 2026-11-05 04:48 UTC

Observed FT8 message patterns

Attributed sample
2,432 messages
Active dates
66 UTC dates
Estimated median S/N
+3 dB
Estimated 10th-90th percentile
-10 to +19 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 80, moderate (-15 to -9 dB) 244, strong (≥ -8 dB) 2,108.

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 OH3NXW

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
KP11 · 1,354 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,288 km (approx.)
Last such locator decoded
2026-11-05 04:47 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 UTCBandOH3NXW S/NCounterpartCounterpart S/NMsgsCapture
11-05 04:47 80m +9 / - TJ1GD - / -14 3 ✓ Closing fragment
11-04 05:29 40m +17 / +5 CT7AUT -12 / -12 4 ✓ Full exchange observed
11-04 05:24 80m +8 / -6 T77RN -5 / -11 4 ✓ Full exchange observed
11-04 05:18 40m -2 / - 3A2LF - / -14 4 ✓ Closing fragment
11-03 14:09 60m +3 / - KH8A - / - 4 Partial capture
11-03 05:40 60m 0 / - 6W/IK2HKT - / - 11 Partial capture
11-03 05:30 60m +1 / - 6W/IK2HKT - / - 15 Partial capture
11-03 05:27 60m +5 / - <...> - / - 6 Partial capture
11-02 05:02 40m - / - UR9QQ -6 / - 4 Partial capture
11-01 17:35 160m +4 / - AP2HA - / -21 3 ✓ Closing fragment
10-31 22:57 60m -10 / - DL8NBG/QRP - / - 8 Partial capture
10-31 22:56 60m -12 / - S79VU - / - 3 Partial capture
10-31 22:43 80m +15 / - SX37VER - / - 4 Partial capture
10-31 22:34 80m +11 / - YU65AEC - / - 17 Partial capture
10-31 22:32 80m +15 / - SP5DFK/QRP - / - 3 Partial capture
10-31 22:29 80m +7 / - YU65AEC - / - 5 Partial capture
10-31 06:38 80m -12 / - 6W/IK2HKT - / - 10 Partial capture
10-31 06:35 80m -16 / - <...> - / - 3 Partial capture
10-31 06:32 80m -2 / - SP5DFK/QRP - / - 2 Partial capture
10-31 06:31 80m -5 / - TK/DH7SB - / - 2 Partial capture
10-31 06:26 80m -3 / - SQ100LKK - / - 4 Partial capture
10-30 23:42 160m 0 / - 6W/IK2HKT - / -9 3 Partial capture
10-30 13:53 80m +7 / - JF1VXB/P - / -12 3 ✓ Closing fragment
10-30 13:48 80m +6 / - SP3VSC -5 / -12 4 ✓ Closing observed
10-30 13:47 80m +8 / - JE8DBM - / -10 2 Partial capture
10-30 13:46 80m +5 / -6 DO2WZ -5 / -16 10 ✓ Full exchange observed
10-30 13:45 80m +7 / - JR5JEU - / -11 2 ✓ Closing fragment
10-30 13:44 80m +7 / - JA5WIO - / -14 2 ✓ Closing fragment
10-30 13:40 80m +6 / - NL8F - / - 3 Partial capture
10-29 15:58 80m - / - RT6Z -4 / - 2 Partial capture
10-29 15:56 80m +1 / +2 UR5RBP -19 / -13 3 ✓ Full exchange observed
10-29 15:54 80m 0 / - R6UBM -23 / -18 3 ✓ Closing observed
10-29 15:53 80m -2 / - JR7VHZ - / -5 2 ✓ Closing fragment
10-29 15:52 80m +3 / - JN1JFC - / -10 2 ✓ Closing fragment
10-29 15:51 80m +1 / - UA3YFL - / -6 2 ✓ Closing fragment
10-29 15:40 160m -6 / - RU6C - / -4 2 ✓ Closing fragment
10-29 15:39 160m -8 / -3 RC2DT -24 / -19 3 ✓ Full exchange observed
10-29 15:26 160m -14 / - AP2HA - / - 2 Partial capture
10-29 13:17 80m -16 / - JN1JFC - / - 2 Partial capture
10-28 05:01 80m -7 / - SP4NKJ - / -13 5 Partial capture
10-27 20:06 160m - / - 9H1ES -10 / - 2 Partial capture
10-27 20:05 160m +3 / - 5Z4VJ - / - 17 Partial capture
10-27 19:02 80m +12 / - A92AE - / -15 9 ✓ Closing fragment
10-27 17:01 160m -11 / - OH0Z - / +1 4 ✓ Closing fragment
10-27 16:57 160m -11 / -18 RD7X -22 / -12 3 ✓ Full exchange observed
10-27 16:56 160m -9 / - RJ3DC -17 / 0 5 ✓ Closing observed
10-27 16:55 160m -10 / -15 IK2SGB -15 / -9 5 ✓ Full exchange observed
10-27 16:54 160m -12 / -6 SP6JEV -22 / -10 3 ✓ Full exchange observed
10-27 16:51 160m -8 / - R4RL - / -9 2 ✓ Closing fragment
10-27 16:51 160m -5 / +1 SP9MRP -4 / +1 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
224045 +12  818  YU65AEC OH3NXW KP11 (x4)
224315 +16  542  SX37VER OH3NXW KP11 (x4)
052445  +7  346  T77RN OH3NXW KP11
052500  -5  347  OH3NXW T77RN -06
052515  +8  346  T77RN OH3NXW R-11 (x2)
044715 +12 2928  TJ1GD OH3NXW KP11 (x3)
40m
UTC    dB Audio  Message
143215 -14  994  XX9TXN OH3NXW KP11 (x2)
075815  -1 3008  TG9AUO OH3NXW KP11
050200  -7  307  OH3NXW UR9QQ KN77 (x4)
051845  -1  383  3A2LF OH3NXW KP11 (x4)
052915 +15 2967  CT7AUT OH3NXW KP11
052930 -12 1473  OH3NXW CT7AUT +05
052945 +16 2967  CT7AUT OH3NXW R-12 (x2)
60m
UTC    dB Audio  Message
054045  -1  419  6W/IK2HKT OH3NXW KP11 (x11)
140945  +0  275  KH8A OH3NXW KP11 (x4)
160m
UTC    dB Audio  Message
201530  -3 1939  5Z4VJ OH3NXW KP11
152615 -15 2249  AP2HA OH3NXW KP11 (x2)
153915 -10 1760  CQ OH3NXW KP11
153930 -24 2144  OH3NXW RC2DT -03
153945  -7 1760  RC2DT OH3NXW R-19 (x2)
154045  -9 1760  RU6C OH3NXW -04 (x2)
234215  -5  615  6W/IK2HKT OH3NXW KP11 (x3)
173545  +4 1341  AP2HA OH3NXW KP11 (x3)
20m
UTC    dB Audio  Message
150345  -9  500  OH3NXW 2E1HAT JO01 (x12)
200245 -11 2213  OH3NXW G7NUT IO91 (x2)
094615 -11  278  RI1FJL OH3NXW KP11

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

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee