OM5CM — 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: JN98

Receiver-side FT8 activity involving OM5CM, decoded by SO8OO in southeastern Poland. 771 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, across 18 UTC dates in the available aggregate history. Observed between 2026-07-03 and 2026-10-20.

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 771 FT8 messages attributed to OM5CM as the transmitting token by decoded message structure across 18 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (52%), followed by 160 m (29%) and 60 m (19%). Most decodes (67%) fell within the six-hour window 00:00-06:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (90%); the estimated median was +3 dB.

Overview

771

Messages attributed

UTC dates decoded

Active 15-min windows

+3 dB

Estimated median S/N

Bands

160m · 224 80m · 400 60m · 143 40m · 4

First attributed message: 2026-07-03
Last attributed message: 2026-10-20 02:26 UTC

Observed FT8 message patterns

Attributed sample: 771 messages
Active dates: 18 UTC dates
Estimated median S/N: +3 dB
Estimated 10th-90th percentile: -8.5 to +12 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 14, moderate (-15 to -9 dB) 63, strong (≥ -8 dB) 694.

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.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with OM5CM in decoded directed-looking exchanges:

DL9KM · Fed. Rep. of Germany ×3 OM0RX · Slovak Republic ×2 OM3SX · Slovak Republic ×2 ON4MAP · Belgium ×2 9A5AFP · Croatia DD0AM · Fed. Rep. of Germany EC1AIJ · Spain F1IQH · France F4EGM · France G6PZ · England HB9SLO · Switzerland M0KDZ · England

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 OM5CM

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: JN98 · 546 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 258 km (approx.)
Last such locator decoded: 2026-10-20 02:26 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 UTC	Band	OM5CM S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-20 01:57	160m	+9 / -	M0IOY	-12 / 0	2	Partial capture
10-19 02:16	40m	-17 / -	7P8GE	- / -	2	Partial capture
10-17 03:20	160m	+7 / -	F4EGM	- / -13	2	✓ Closing fragment
10-17 03:18	160m	+8 / -	SP8WB	- / -	2	Partial capture
10-17 03:15	160m	+5 / 0	R2GCV	-15 / -10	4	✓ Full exchange observed
10-17 03:14	160m	+6 / -	M0KDZ	- / -11	6	✓ Closing fragment
10-17 03:10	160m	+10 / -	EC1AIJ	- / -6	3	✓ Closing fragment
10-17 03:08	160m	+6 / -	F1IQH	- / -19	2	✓ Closing fragment
10-17 03:04	160m	+8 / -9	EC1AIJ	-24 / -5	3	Partial capture
10-17 03:04	160m	+12 / -	OH2FT	+4 / +1	5	✓ Full exchange observed
10-17 02:57	80m	+16 / -	MM0HVU	- / -10	2	✓ Closing fragment
10-17 02:56	80m	+18 / -	IU3WIX	- / -10	3	✓ Closing fragment
10-17 02:53	80m	+14 / -11	EI4JFB	+3 / -1	5	✓ Full exchange observed
10-17 02:45	80m	+19 / -	PJ4/DH8BQA	- / -	5	Partial capture
10-05 23:45	160m	-9 / -16	RX6DA	-10 / -19	21	✓ Full exchange observed
10-05 23:42	160m	+2 / -10	DL9KM	-18 / -20	7	✓ Full exchange observed
10-05 23:41	160m	-3 / -1	OM0RX	+11 / -13	33	✓ Full exchange observed
10-05 22:44	160m	+4 / -7	OM3SX	+16 / +3	5	✓ Full exchange observed
10-05 21:56	160m	0 / -	IT9NOV	- / -	21	Partial capture
10-05 21:54	160m	+6 / -	9A5AFP	+2 / +1	5	✓ Closing observed
10-05 21:52	160m	+7 / -	IT9NOV	- / -	4	Partial capture
10-05 21:50	160m	+5 / +2	OM3SX	+18 / +3	6	✓ Full exchange observed
10-02 03:39	160m	+3 / -	SP3BPU	+10 / -5	5	✓ Full exchange observed
10-02 03:34	160m	+2 / -	SM7TZK	- / -	9	Partial capture
10-02 02:38	160m	+3 / -9	OH3XR	+12 / -21	5	✓ Full exchange observed
09-30 05:20	80m	+3 / -	EO210WLP	- / -16	8	Partial capture
09-30 04:41	80m	+5 / -	PJ2/W4IPC	- / -14	71	Partial capture
09-30 04:28	80m	-1 / -	PJ2/W4IPC	- / -	15	Partial capture
09-30 04:27	80m	-6 / -	LZ936BA	- / -	2	Partial capture
09-30 04:19	80m	+1 / -	SQ100PKP	- / -	15	Partial capture
09-30 04:13	80m	-2 / -	SQ100PKP	- / -	8	Partial capture
09-30 04:07	80m	+6 / -	OL900LTV	- / -	7	Partial capture
09-30 04:05	80m	+11 / -	PJ2/W4IPC	- / -	3	Partial capture
09-30 04:02	80m	+9 / -	LA2RRA/P	- / -	7	Partial capture
09-30 04:00	80m	+4 / -	UA9JTJ/9	- / -	2	Partial capture
09-25 02:36	80m	+8 / -	LZ936BA	- / -	4	Partial capture
09-25 02:30	80m	+3 / -	W4WHQ	- / -	4	Partial capture
09-25 02:25	80m	+8 / +9	DO1OAS	-7 / -6	5	✓ Full exchange observed
09-25 02:22	80m	+7 / -	OH7TY	- / -3	3	Partial capture
09-25 02:20	80m	+5 / -8	R5AV	-1 / -7	4	✓ Full exchange observed
09-25 02:18	80m	+7 / -	DO5PY	+1 / -15	2	Partial capture
09-25 02:18	80m	+7 / -7	ON4MAP	-14 / -8	6	✓ Full exchange observed
09-25 02:17	80m	- / -7	R5AV	0 / -	3	Partial capture
09-25 02:13	80m	+8 / -	R9CB	- / -19	4	✓ Closing fragment
09-25 02:11	80m	+10 / -	3Z100PKP	- / -10	2	Partial capture
09-25 02:03	160m	-11 / -	OD5XX	- / -	4	Partial capture
09-25 01:54	160m	-4 / -	YO2LDU	- / -21	4	✓ Closing fragment
09-25 01:43	160m	+3 / +9	SP3FHV	+22 / -1	5	✓ Full exchange observed
09-25 01:38	160m	-6 / -	SP9GCZ	- / -	9	Partial capture
09-23 22:24	160m	-1 / -21	RI1FJZ	-12 / -	21	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
031930  +9 1401  CQ OM5CM JN98 (x2)
032030  +3 1401  F4EGM OM5CM -13 (x2)
014015 +22 1152  <...> OM5CM JN98
014800 +17 1701  W1KOK OM5CM R-16
015700 +11 1701  CQ OM5CM JN98
015715 -12 1035  OM5CM M0IOY IO93
015730  +9 1701  M0IOY OM5CM +00
015930 +10 1701  NJ6D OM5CM JN98
020000  +8 1701  CQ OM5CM JN98
020730  +9 1701  K2UO OM5CM -21
021000 +13 1701  AJ4F OM5CM -21
022500 +14 1701  CQ OM5CM JN98
022600 +17 1701  WK1O OM5CM JN98

40m

UTC    dB Audio  Message
025500 +13 2314  OM5CM RA6ABC KN96 (x3)
030500 -17 1442  OM5CM JY5IB -07 (x2)
031745 -16  983  W6I OM5CM JN98
054430 -18 2115  OM5CM TK/4O7CC +03
054530 -14 2559  OM5CM IU8RFW JN70 (x2)
234015 -18 2302  OM5CM AI5B EM50
235430 -18  711  OM5CM VU2DCC R-07
235515 -23 1984  CQ OM5CM JN98
000915  -7  994  OM5CM CR7BRV RR73
021645 -18 1185  7P8GE OM5CM JN98 (x2)

80m

UTC    dB Audio  Message
025415  +4  330  OM5CM EI4JFB 73
025430 +14 1351  CQ OM5CM JN98 (x3)
025600 +17 1351  IU3WIX OM5CM R-10 (x2)
025700 +18 1351  CQ OM5CM JN98
025730 +15 1351  MM0HVU OM5CM R-10 (x2)
025830 +19 1351  IU3WIX OM5CM 73
025900 +11 1351  CQ OM5CM JN98                         a1 (x5)

60m

UTC    dB Audio  Message
214445 -21 1787  OM5CM DL9KM JN68
214500  -4 1328  DL9KM OM5CM -13
214515 -12 1786  OM5CM DL9KM R-07
214530  -2 1328  DL9KM OM5CM RR73
214545 -15 1787  OM5CM DL9KM 73
214615  -3 1328  ER1CW OM5CM JN98 (x3)
214830  +5 1922  OM5CM II7MGXX +03
214845  -5 1328  <...> OM5CM R+01
214900  +5 1922  OM5CM RR73; EA5JKT <...> +06
215015  -6 1328  ER1CW OM5CM JN98 (x4)

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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