OM3CUP — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Slovak Republic Locator transmitted in a decoded message: JN88

Receiver-side FT8 activity involving OM3CUP, decoded by SO8OO in southeastern Poland. 979 related FT8 messages, 108 CQ messages, observed on 40m, 20m, 10m, across 66 UTC dates. Heard between 2026-05-25 and 2026-08-23.

These are automated observations at the SO8OO receiver, not the station's official logbook. Times are UTC. Decoder S/N describes messages received at SO8OO; inferred entity and location data may be inaccurate for portable, remote or special-event operation.

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

Overview

979
Related messages
108
CQ messages
66
UTC dates heard
-6 dB
Mean decoder S/N

Bands

First seen: 2026-05-25
Last seen: 2026-08-23 16:44 UTC

Activity Heatmap

Locator transmitted by OM3CUP

Approximate centre of JN88, decoded 2026-08-21 17:53 UTC. A transmitted locator is not proof of the operator's permanent location.

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 UTCBandOM3CUP S/NCounterpartCounterpart S/NMsgsCapture
08-23 07:22 20m - / -10 F5ICC -8 / - 2 ✓ Closing fragment
08-22 17:35 20m - / -14 SM7SPG -2 / - 2 Partial capture
08-21 17:53 20m +6 / - RW6HPS - / -12 4 ✓ Closing fragment
08-21 17:50 20m +6 / - SP5BZA - / 0 2 ✓ Closing fragment
08-21 17:44 20m -2 / - SP8SRZ - / -16 2 Partial capture
08-21 17:39 20m -1 / 0 OK2CNI +19 / - 4 ✓ Closing observed
08-21 17:28 20m -7 / -14 DA1LEO +8 / -13 8 ✓ Full exchange observed
08-21 17:28 20m -10 / - RU4B - / -7 2 ✓ Closing fragment
08-21 17:22 20m -6 / - RA4CX -16 / -1 3 ✓ Closing observed
08-21 17:18 20m -14 / - 4S6ARW - / -20 3 Partial capture
08-21 16:58 20m -10 / - YB3FTD - / -16 4 Partial capture
08-21 16:40 20m -13 / - BG7BVI - / -13 3 Partial capture
08-21 16:38 20m -4 / - JA5NSR - / -14 3 Partial capture
08-20 15:03 20m - / - F4HSB -6 / - 4 Partial capture
08-20 15:02 20m - / -7 EB1DJ -11 / - 2 ✓ Closing fragment
08-14 18:52 20m - / +1 MM7BWK -15 / - 3 ✓ Closing fragment
08-13 19:15 10m - / -13 F1PBZ -5 / - 3 Partial capture
08-09 17:32 20m - / - DH1NGL -13 / - 3 ✓ Closing fragment
08-09 17:16 20m - / +6 F6FBI -12 / - 3 Partial capture
08-09 08:34 20m - / -6 PA0HCL -18 / - 2 ✓ Closing fragment
08-09 08:29 20m - / - UR5VPR -12 / - 2 ✓ Closing fragment
08-09 08:24 20m - / 0 DL1BGH -18 / - 2 Partial capture
08-07 19:08 20m - / -13 EA4LW -19 / - 3 Partial capture
08-04 18:22 20m - / -9 F5SJC +2 / - 2 ✓ Closing fragment
08-04 17:20 20m - / -16 TA2ED -11 / - 3 Partial capture
08-03 19:26 40m - / -8 DF3WI -14 / - 3 ✓ Closing fragment
08-03 17:46 20m - / -3 DF0KK +4 / - 3 ✓ Closing fragment
08-02 07:58 20m -8 / - EA3DBZ - / -14 3 Partial capture
08-02 07:57 20m -4 / - VK6BAD - / -15 2 ✓ Closing fragment
08-02 07:55 20m -10 / - KE9BPC - / -17 2 ✓ Closing fragment
07-31 17:55 20m - / +6 CT1ISH -4 / - 2 ✓ Closing fragment
07-28 19:23 20m - / - PA0CWO -16 / - 2 Partial capture
07-28 19:22 20m - / 0 DA2ST -18 / - 2 ✓ Closing fragment
07-28 19:20 20m - / -15 TA2ED -2 / - 2 ✓ Closing fragment
07-28 19:15 20m - / -6 F1PBZ +10 / - 3 ✓ Closing fragment
07-28 18:51 20m - / -15 TA2ED -1 / - 2 Partial capture
07-28 18:45 20m - / -19 TA2ED -10 / - 2 Partial capture
07-28 18:09 20m - / -21 R8OAE -18 / - 5 Partial capture
07-27 18:20 20m - / - F4IIX -3 / - 4 Partial capture
07-21 18:44 20m +2 / - R3UCZ - / -8 4 ✓ Closing fragment
07-21 18:37 20m - / - EI4JFB -16 / - 2 Partial capture
07-21 18:31 20m - / -15 BI4XDT -3 / - 3 ✓ Closing fragment
07-21 18:28 20m - / -13 F1PBZ +4 / - 2 Partial capture
07-19 22:30 20m - / -4 G1ZOM -20 / - 2 ✓ Closing fragment
07-19 18:26 10m - / - DN9IL -15 / - 3 ✓ Closing fragment
07-19 10:44 10m - / +9 DJ9FBA -24 / - 2 ✓ Closing fragment
07-18 20:03 20m - / +9 LA6VQ -11 / - 3 ✓ Closing fragment
07-18 19:53 20m -13 / - NP4EB - / -17 3 Partial capture
07-18 19:45 20m -9 / - SQ9DDH - / -22 3 Partial capture
07-18 19:38 20m - / -14 JA0RUG -16 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m
UTC    dB Audio  Message
175045 +10 2608  SP5BZA OM3CUP +00 (x2)
175245  -8 2607  CQ OM3CUP JN88 (x2)
175345 +10 2229  RW6HPS OM3CUP -12 (x4)
175615  -1 1323  N1HMT OM3CUP -08
180215  +5  485  XU7O OM3CUP -12
173545  -3  724  OM3CUP SM7SPG R-14 (x2)
072230  -8 1783  OM3CUP F5ICC R-10 (x2)
184415  -2 1454  OM3CUP M0ITJ 73
10m
UTC    dB Audio  Message
161800  -4 2699  OM3CUP IQ4JO JN63
161830  +5 2406  OM3CUP IU8ADS JN70 (x3)
104400 -23 1688  OM3CUP DJ9FBA R+09 (x2)
182230 -14  995  OM3CUP DN9TB JO41
182630 -18 1209  OM3CUP DN9IL JN39
182700  -9 2749  OM3CUP PC9K JO22
182700 -14 1209  OM3CUP DN9IL R+12 (x2)
183230 -16 2264  OM3CUP DN9MRB JO32
191545  -9 2687  OM3CUP F1PBZ -13 (x3)
40m
UTC    dB Audio  Message
195845  -4 1388  YT2FA OM3CUP -14
195915  -2 2709  IQ8DO OM3CUP -17
195930  +0 2710  OM3CUP IQ8DO R-22
195945  +2 2709  IQ8DO OM3CUP RR73
200000  +1 2710  OM3CUP IQ8DO RR73
200015  +2 2669  DL70ESSEN OM3CUP -18 (x3)
215730  -9 2370  OM3CUP ED7SUN -15 (x2)
215930  -5 1222  OM3CUP SA7CHI JO65
220030 -12 1680  OM3CUP DL3YAT 73
192600 -17 2183  OM3CUP DF3WI JO30 (x3)

Decoder S/N history by band

Daily averages across messages associated with this profile as decoded at SO8OO.