OM4KK — 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: Slovak Republic Most frequent locator attributed to this token: JN88

Receiver-side FT8 activity involving OM4KK, decoded by SO8OO in southeastern Poland. 1,684 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 57 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-11-04.

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 1,684 FT8 messages attributed to OM4KK as the transmitting token by decoded message structure across 57 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (52%), followed by 40 m (36%) and 160 m (6%). Most decodes (75%) fell within the six-hour window 19:00-01:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (89%); the estimated median was +5.2 dB.

Overview

1,684
Messages attributed
57
UTC dates decoded
240
Active 15-min windows
+5.2 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-11-04 17:40 UTC

Observed FT8 message patterns

Attributed sample
1,684 messages
Active dates
57 UTC dates
Estimated median S/N
+5.2 dB
Estimated 10th-90th percentile
-9.6 to +18 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 48, moderate (-15 to -9 dB) 139, strong (≥ -8 dB) 1,497.

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 OM4KK

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
JN88 · 1,161 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
383 km (approx.)
Last such locator decoded
2026-11-04 17:39 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 UTCBandOM4KK S/NCounterpartCounterpart S/NMsgsCapture
11-05 00:59 40m - / -2 TC2TR -10 / - 2 ✓ Closing fragment
11-05 00:54 40m - / +7 TC0TR -8 / - 2 ✓ Closing fragment
11-04 17:38 80m +11 / -13 OM1TT -3 / -7 7 ✓ Full exchange observed
11-03 17:45 40m - / -7 TC2TR -16 / - 2 ✓ Closing fragment
11-03 17:14 40m - / -13 TC7ATA -17 / - 2 ✓ Closing fragment
11-02 20:11 40m - / -15 TC0TR -13 / - 3 ✓ Closing fragment
11-02 00:18 80m +3 / -5 DO3OK -8 / - 10 ✓ Closing observed
11-02 00:18 80m -1 / +2 OS4K -20 / -20 7 ✓ Full exchange observed
11-02 00:17 80m +2 / - II4GCLB - / +6 2 Partial capture
11-02 00:11 80m +2 / - RA6FCU/P - / 0 2 Partial capture
11-02 00:07 80m -2 / - EX7DY - / - 8 Partial capture
11-02 00:05 80m +6 / -3 T77RN -8 / -17 4 ✓ Full exchange observed
11-01 21:18 80m +10 / - Z62NS - / - 2 Partial capture
11-01 21:16 80m +9 / - DB2HA - / - 3 Partial capture
11-01 21:13 80m +8 / - LA3PK - / - 2 Partial capture
11-01 16:51 80m +12 / - YU65AEC - / +1 7 Partial capture
10-22 12:38 10m - / +1 7Z1BQ -9 / - 2 ✓ Closing fragment
10-12 20:57 160m -6 / -19 II5GG +2 / -8 26 ✓ Full exchange observed
10-12 20:50 160m -1 / - II5GG - / - 7 Partial capture
10-12 20:35 80m 0 / - DA6HU/P - / - 10 Partial capture
10-12 20:30 80m +2 / - OL900LTV - / - 4 Partial capture
10-12 20:08 80m +2 / -9 II5GG -2 / +2 7 ✓ Full exchange observed
10-12 16:26 40m - / -7 II5GG -2 / - 5 ✓ Closing fragment
10-10 20:35 80m - / -9 DA6DNA -5 / - 3 ✓ Closing fragment
10-10 20:29 80m +5 / - IQ9SZ/2 - / - 3 Partial capture
10-10 07:07 40m 0 / - IQ8DO - / +10 4 ✓ Closing fragment
10-10 07:02 40m -10 / -12 IQ9SZ/2 -9 / +5 5 Partial capture
10-10 06:13 40m - / +1 AO5CV -12 / - 2 ✓ Closing fragment
10-09 23:03 40m - / -6 II5GG -18 / - 2 ✓ Closing fragment
10-09 20:42 80m +26 / - DO1ID +13 / +7 5 ✓ Full exchange observed
10-09 20:41 80m - / - JH2VVH -11 / - 4 Partial capture
10-09 20:40 80m +21 / +1 IQ2AAH +2 / -4 5 ✓ Full exchange observed
10-09 20:38 80m +19 / -1 SQ8AA +2 / - 8 ✓ Full exchange observed
10-09 20:35 80m +20 / - IQ2AAH - / - 6 Partial capture
10-09 20:27 80m +16 / 0 AO5CV -2 / -5 10 ✓ Full exchange observed
10-09 18:09 40m - / +3 IQ0YA +1 / - 3 ✓ Closing fragment
10-08 20:06 80m +9 / +4 OL900CO +9 / - 9 Partial capture
10-07 21:54 80m +13 / -8 IQ8DO -11 / -12 6 ✓ Full exchange observed
10-07 21:48 80m - / -9 R5AT -24 / - 2 Partial capture
10-07 21:44 80m +11 / - IQ0DO - / - 9 Partial capture
10-07 20:21 80m +14 / +10 IR8PR -1 / 0 6 ✓ Full exchange observed
10-07 19:39 80m - / - DH4SAY -7 / - 2 Partial capture
10-07 19:34 80m +18 / +1 IQ2AAH -7 / -8 9 ✓ Full exchange observed
10-07 19:31 80m +17 / 0 II5GG -1 / +5 8 ✓ Full exchange observed
10-07 13:31 40m -4 / +8 IQ2AAH -14 / +8 5 ✓ Full exchange observed
10-06 21:12 80m +14 / +10 IQ4JO +14 / +5 10 ✓ Full exchange observed
10-06 21:01 80m +16 / - IQ4JO - / - 10 Partial capture
10-06 20:57 80m +18 / -1 IQ9SZ/2 -1 / -10 8 Partial capture
10-06 20:56 80m +16 / - IQ4JO - / - 2 Partial capture
10-06 19:49 40m - / -2 IQ9SZ/2 -11 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
162745  +0 2432  OM4KK II5GG RR73 (x2)
170915 -11 1541  OM4KK TC7ATA RR73
171330  -7 1222  OM4KK TC5ATA -01
201115 -12 2254  OM4KK TC0TR -15 (x3)
171445 -16 1541  OM4KK TC7ATA -13 (x2)
174530 -17 2143  OM4KK TC2TR -07 (x2)
005430  -6 2639  OM4KK TC0TR +07 (x2)
005945 -14 1971  OM4KK TC2TR -02 (x2)
80m
UTC    dB Audio  Message
002045 -13 1503  OM4KK DO3OK R-05
002100  +0 1848  OS4K OM4KK R-20
002115  -2 1503  OM4KK DO3OK R-05 (x2)
002200  +9  761  OD5ZZ OM4KK JN88
002215  -5 1503  OM4KK DO3OK R-05
002230  +3 1503  DO3OK OM4KK RR73
002245 -13 1503  OM4KK DO3OK 73
173800  +0 1830  OM1TT OM4KK JN88 (x4)
173945  -5  693  OM4KK OM1TT -13
174000 +17  615  OM1TT OM4KK R-07
174015  -1  693  OM4KK OM1TT RR73
10m
UTC    dB Audio  Message
123845 -10  437  OM4KK 7Z1BQ +01 (x2)
160m
UTC    dB Audio  Message
210215  +1  893  OM4KK II5GG RR73
210230 -10  895  II5GG OM4KK R-04 (x14)
60m
UTC    dB Audio  Message
192700  -5  813  OM4KK 9A60CBM R-07
192745 -10 1533  9A60CBM OM4KK JN88
192800 -20 1533  OM4KK 9A60CBM -01
192815 -10 1533  9A60CBM OM4KK R+00
193015  -9 1846  II7IABB OM4KK JN88 (x3)
201515 -16 1535  CN8DN OM4KK JN88 (x2)
201615 -14 2099  C31CT OM4KK JN88
201645 -15 1535  CN8DN OM4KK R-23 (x2)
201845 -16 2099  C31CT OM4KK JN88
202030  -6 2099  OM4KK C31CT -12 (x2)
20m
UTC    dB Audio  Message
134300 -16 2501  OM4KK R7OV KN87

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