OM5TZ — 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: JN97

Receiver-side FT8 activity involving OM5TZ, decoded by SO8OO in southeastern Poland. 297 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 22 UTC dates in the available aggregate history. Observed between 2026-07-03 and 2026-10-19.

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 297 FT8 messages attributed to OM5TZ as the transmitting token by decoded message structure across 22 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (47%), followed by 80 m (45%) and 160 m (8%). Most decodes (71%) fell within the six-hour window 14:00-20:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (76%); the estimated median was -3 dB.

Overview

297
Messages attributed
22
UTC dates decoded
45
Active 15-min windows
-3 dB
Estimated median S/N

Bands

First attributed message: 2026-07-03
Last attributed message: 2026-10-19 05:35 UTC

Observed FT8 message patterns

Attributed sample
297 messages
Active dates
22 UTC dates
Estimated median S/N
-3 dB
Estimated 10th-90th percentile
-12 to +4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 16, moderate (-15 to -9 dB) 56, strong (≥ -8 dB) 225.

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 OM5TZ

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
JN97 · 151 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
340 km (approx.)
Last such locator decoded
2026-10-19 05:30 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 UTCBandOM5TZ S/NCounterpartCounterpart S/NMsgsCapture
10-21 19:22 40m - / -18 IK0CHU +6 / - 2 ✓ Closing fragment
10-21 17:56 80m - / -24 DO9SAM +11 / - 3 ✓ Closing fragment
10-19 16:55 10m - / -15 CX6TU -18 / - 2 ✓ Closing fragment
10-19 05:34 80m -2 / - DO1ID - / -9 2 ✓ Closing fragment
10-19 05:32 80m - / -14 DO1ID +5 / - 2 Partial capture
10-19 05:32 80m +2 / -8 SP3IPA +15 / +10 4 ✓ Full exchange observed
10-19 05:30 80m +6 / - MI0NWA - / -12 2 Partial capture
10-18 10:47 10m - / +9 CS7BPG -16 / - 5 ✓ Closing fragment
10-18 08:41 40m - / -18 UA2FFD -22 / - 2 ✓ Closing fragment
10-18 08:34 40m - / +3 DL6EL -6 / - 3 Partial capture
10-18 08:34 40m - / -15 S53AK -3 / - 9 ✓ Closing fragment
10-18 08:26 80m -14 / -5 9A5E -12 / +10 5 ✓ Full exchange observed
10-17 18:38 80m -1 / - DD0IPA - / -5 4 ✓ Closing fragment
10-17 18:19 40m -12 / - R1BMZ - / - 2 Partial capture
10-17 18:16 40m - / -12 DB1BC -13 / - 2 Partial capture
10-17 18:09 40m - / +9 OK1BID -10 / - 3 Partial capture
10-16 04:56 80m - / - DL2YBG -5 / - 2 Partial capture
10-16 04:54 80m -4 / -16 G0BLB +10 / - 4 ✓ Closing observed
10-16 04:53 80m -10 / - UT5MB - / -5 2 ✓ Closing fragment
10-16 04:50 80m -11 / -20 GU4WRP -12 / -20 8 ✓ Full exchange observed
10-15 16:36 80m +4 / -17 II5GG -4 / - 4 Partial capture
10-15 16:34 80m -1 / - RV3YN - / - 3 Partial capture
10-15 16:30 80m -2 / - OE5ABL - / -3 4 Partial capture
10-15 16:28 80m +1 / -9 OZ1BLP -11 / -14 6 ✓ Full exchange observed
10-15 16:24 80m -2 / +2 OE5ABL +2 / -3 5 Partial capture
10-15 16:21 80m -6 / -8 LZ3SD +4 / - 5 ✓ Closing observed
10-14 17:39 80m -4 / - ON3MOH/P - / -24 3 Partial capture
10-14 17:39 80m - / -6 OL900LTV -4 / - 2 Partial capture
10-14 17:34 80m -1 / - E79D - / - 3 Partial capture
10-14 17:32 80m -2 / - II5GG - / - 3 Partial capture
10-14 17:28 80m +1 / -1 OH3MB -7 / -8 5 ✓ Full exchange observed
10-14 17:28 80m -4 / - UR5RBP -8 / -24 12 Partial capture
10-14 17:26 80m - / -19 IQ4JO +7 / - 3 ✓ Closing fragment
10-14 17:08 80m -5 / -8 4L7T -12 / -11 11 ✓ Full exchange observed
10-14 17:04 80m -4 / -3 OH6RE -3 / -12 10 ✓ Full exchange observed
10-14 17:04 80m -6 / -1 DA1ST +2 / -1 5 ✓ Full exchange observed
10-14 05:36 80m -7 / +3 OE3KJO +11 / - 3 ✓ Closing observed
10-13 19:53 80m - / -5 OK1TRJ +9 / - 3 ✓ Closing fragment
10-13 17:42 80m -10 / -11 OK6AB +4 / -14 4 ✓ Full exchange observed
10-13 17:39 80m -11 / -3 DO6MFD -14 / - 4 ✓ Closing observed
10-13 17:36 80m -13 / - IQ4JO +3 / -1 2 Partial capture
09-27 17:14 160m -5 / -2 SP7AS -6 / - 5 ✓ Closing observed
09-27 17:12 160m -4 / -7 IZ8VYU +2 / +1 8 ✓ Full exchange observed
09-27 17:11 160m -2 / - UA3QNA +9 / +8 3 ✓ Closing observed
09-27 17:07 160m -8 / -18 R1NI -14 / -6 7 ✓ Full exchange observed
09-27 17:06 160m -10 / - RD7X - / - 2 Partial capture
09-27 16:58 40m -2 / -10 RO6OP -3 / - 2 Partial capture
09-27 16:51 80m +8 / - DO1ID - / - 3 Partial capture
09-27 16:48 80m +9 / -3 SA3CAT +5 / - 6 ✓ Full exchange observed
09-27 16:46 80m 0 / - OK1AAM +16 / - 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
083445  -6  963  OM5TZ DL6EL +03
083515  -3 1279  OM5TZ S53AK R-15
083515  -6  963  OM5TZ DL6EL +03
083545  -5 1278  OM5TZ S53AK R-15
083545  -6  963  OM5TZ DL6EL +03
083615  -4 1277  OM5TZ S53AK R-15 (x5)
084145 -22 1690  OM5TZ UA2FFD -18 (x2)
161730 -22 1270  OM5TZ F4BJN R-13
192215  +8 1329  OM5TZ IK0CHU -18 (x2)
80m
UTC    dB Audio  Message
082700 -16 2134  9A5E OM5TZ 73
053015  +7  655  MI0NWA OM5TZ JN97 (x2)
053200 +15  667  OM5TZ SP3IPA -08
053200  +6  238  OM5TZ DO1ID -14
053215  +6  655  SP3IPA OM5TZ R+10
053230 +15  667  OM5TZ SP3IPA RR73
053230  +4  238  OM5TZ DO1ID -14
053245  -3  655  SP3IPA OM5TZ 73
053445  -5  655  DO1ID OM5TZ R-09 (x2)
175615 +14 1232  OM5TZ DO9SAM JO61 (x3)
175845 +16 2564  OM5TZ 9A6NCC JN85
10m
UTC    dB Audio  Message
091415 -21 1715  OM5TZ F4FSY -04 (x3)
104715 -21 1596  OM5TZ CS7BPG IN51 (x5)
165530 -18 2203  OM5TZ CX6TU -15 (x2)
160m
UTC    dB Audio  Message
171130  +9 2171  OM5TZ UA3QNA RR73
171145  +0 1440  UA3QNA OM5TZ 73
171215  +0 1440  IZ8VYU OM5TZ JN97 (x2)
171300  -1 1129  OM5TZ IZ8VYU -07
171315  -9 1440  IZ8VYU OM5TZ R+01
171330  +3 1129  OM5TZ IZ8VYU -07
171345  -7 1440  IZ8VYU OM5TZ R+11
171400  +3 1129  OM5TZ IZ8VYU RR73
171415  -3 1440  IZ8VYU OM5TZ 73
171430  -7 1440  OM5TZ SP7AS KO00 (x3)
171545  -5 1440  SP7AS OM5TZ RR73
171600  -5 1440  OM5TZ SP7AS 73

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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