OH8CW — 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: KP25

Receiver-side FT8 activity involving OH8CW, decoded by SO8OO in southeastern Poland. 93 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-08-09 and 2026-11-02.

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 93 FT8 messages attributed to OH8CW as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (96%), followed by 40 m (3%) and 20 m (1%). Most decodes (96%) 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 -9 dB.

Overview

93
Messages attributed
6
UTC dates decoded
9
Active 15-min windows
-9 dB
Estimated median S/N

Bands

First attributed message: 2026-08-09
Last attributed message: 2026-11-02 16:27 UTC

Observed FT8 message patterns

Attributed sample
93 messages
Active dates
6 UTC dates
Estimated median S/N
-9 dB
Estimated 10th-90th percentile
-15 to +5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 40, strong (≥ -8 dB) 45.

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 OH8CW

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
KP25 · 50 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,740 km (approx.)
Last such locator decoded
2026-11-02 16:26 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 UTCBandOH8CW S/NCounterpartCounterpart S/NMsgsCapture
11-02 16:27 80m -13 / - LB7ZK -13 / - 2 ✓ Closing observed
11-02 16:26 80m -15 / -14 SP2SGN -18 / -9 5 ✓ Full exchange observed
11-02 16:23 80m -7 / -12 OK1UOZ +23 / +7 4 ✓ Full exchange observed
11-02 16:16 80m -11 / - OZ5NJ -2 / - 2 ✓ Closing observed
11-02 16:13 80m -12 / -2 DO7RMS +5 / +2 5 ✓ Full exchange observed
11-02 16:09 80m -19 / -17 DO9ST -6 / -10 4 ✓ Full exchange observed
11-02 16:05 80m -10 / - R3DFU - / -25 2 Partial capture
11-02 16:03 80m -13 / - RA9YJU -21 / -16 2 ✓ Closing observed
11-02 15:58 80m -7 / +1 OH6CXP -10 / - 3 ✓ Closing observed
11-02 15:54 80m -4 / -18 RC9WC -7 / - 4 ✓ Full exchange observed
11-02 15:52 80m -2 / -20 UX7UU +2 / -2 5 ✓ Full exchange observed
10-28 16:20 80m - / - OH2CUB -14 / - 2 ✓ Closing fragment
10-28 16:18 80m - / - RK6OQ +10 / - 3 Partial capture
10-28 16:13 80m - / -21 SP4WJ +1 / - 10 ✓ Closing fragment
10-28 13:23 40m - / -7 DH1NGL -7 / - 5 ✓ Closing fragment
10-28 13:20 40m -11 / -11 DL1ECG -12 / -4 3 Partial capture
10-21 12:58 40m - / - SP4WJ -8 / - 10 Partial capture
10-21 12:58 40m - / +5 OH2CGU/P -3 / - 2 ✓ Closing fragment
10-21 12:32 40m - / +2 DA1ST +4 / - 2 ✓ Closing fragment
10-06 19:37 80m -10 / - UC6D +1 / +2 4 Partial capture
10-06 19:36 80m - / -24 R6NA +2 / - 4 ✓ Closing fragment
10-06 19:28 80m -4 / -14 DL8DAQ +1 / 0 7 ✓ Full exchange observed
10-06 19:25 80m -7 / -7 YO3FRI +1 / +7 7 ✓ Full exchange observed
10-06 19:24 80m -7 / - YU65AEC - / -10 2 Partial capture
08-22 20:25 80m +8 / -11 IK6GTF -3 / -13 4 ✓ Full exchange observed
08-22 20:22 80m +6 / -6 DL9KM -12 / -17 4 ✓ Full exchange observed
08-22 20:21 80m +5 / -5 PE2JMR -8 / -1 4 ✓ Full exchange observed
08-22 20:20 80m +4 / - DM4MB -16 / -17 2 Partial capture
08-22 20:18 80m +5 / - ZS6WAB - / - 3 Partial capture
08-22 20:15 80m +4 / - ZS6WAB - / - 3 Partial capture
08-11 11:48 20m - / -14 OE9GWV -13 / - 4 Partial capture
08-11 11:43 20m - / -18 F5MXH 0 / - 4 ✓ Closing fragment
08-11 11:36 20m - / -20 DF7EE -18 / - 3 Partial capture
08-11 11:33 20m - / -5 PD1ADA -16 / - 2 Partial capture
08-11 11:31 20m - / +2 OK2CNI 0 / - 6 ✓ Closing fragment
08-09 18:53 80m -14 / -20 EW8CW -5 / +8 8 ✓ Full exchange observed
08-09 18:53 80m -10 / -14 R3HH -2 / +4 5 ✓ Full exchange observed
08-09 18:52 80m -14 / -17 R7CD 0 / +2 8 ✓ Full exchange observed
08-09 18:51 80m -6 / -4 RL2Y +5 / +3 5 ✓ 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
162315 +24 2779  OH8CW OK1UOZ JO70
162330  -7 2779  OK1UOZ OH8CW +07
162345 +24 2779  OH8CW OK1UOZ R-12 (x2)
162430 -11 2779  CQ OH8CW KP25 (x4)
162645 -15 1374  OH8CW SP2SGN JO83
162700 -13 2779  LB7ZK OH8CW RR73
162715 -21 1374  OH8CW SP2SGN JO83
162715 -13 2855  OH8CW LB7ZK 73
162730 -15 2779  SP2SGN OH8CW -09
162745 -20 1375  OH8CW SP2SGN R-14 (x2)
40m
UTC    dB Audio  Message
130145  -7 2609  OH8CW SP4WJ KO03 (x5)
132000 -12 2491  OH8CW DL1ECG JO31
132015 -11 2655  DL1ECG OH8CW -04
132030 -13 2491  OH8CW DL1ECG R-11
132245 -14 2654  CQ OH8CW KP25                         a1
132300  -8 1428  OH8CW DH1NGL -07 (x5)
132615 -14 2655  CQ OH8CW KP25
20m
UTC    dB Audio  Message
113430 -19 2035  OH8CW PD1ADA R-05
113600 -15 1853  OH8CW DF7EE JO40 (x3)
114300  -1 2829  OH8CW F5MXH JN07 (x4)
114700 -16 1037  OH8CW UR5LY -11
114800 -14 1988  OH8CW OE9GWV JN47 (x4)
115200  -5 2831  OH8CW UR5VPR R-11
124015  -7 2954  JL1IOC/P OH8CW KP25

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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