OL900LTV — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Czech Republic

Receiver-side FT8 activity involving OL900LTV, decoded by SO8OO in southeastern Poland. 763 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 26 UTC dates in the available aggregate history. Observed between 2026-07-02 and 2026-09-04.

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 763 FT8 messages attributed to OL900LTV as the transmitting token by decoded message structure across 26 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (80%), followed by 20 m (16%) and 40 m (4%). Most decodes (81%) fell within the six-hour window 18:00-00:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

763

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

160m · 6 80m · 607 40m · 27 20m · 123

First attributed message: 2026-07-02
Last attributed message: 2026-09-04 19:39 UTC

Observed FT8 message patterns

Attributed sample: 763 messages
Active dates: 26 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -17 to +1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 125, moderate (-15 to -9 dB) 299, strong (≥ -8 dB) 339.

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 OL900LTV in decoded directed-looking exchanges:

Z335MK · North Macedonia ×2 DO4HHK · Fed. Rep. of Germany DJ3WF · Fed. Rep. of Germany DL9ATW · Fed. Rep. of Germany DL1EDR · Fed. Rep. of Germany LZ67PP · Bulgaria 8B81JB · Indonesia RN1NEB · European Russia AO140W · Spain 8B81JG · Indonesia DH5BO · Fed. Rep. of Germany DO9PV · Fed. Rep. of Germany

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.

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	OL900LTV S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-04 19:39	80m	-4 / -	<...>	+10 / -	2	✓ Closing fragment
09-04 19:39	80m	- / -10	UW5KW	+12 / -	2	Partial capture
09-04 19:36	80m	+1 / -	<...>	-7 / -	2	✓ Closing fragment
09-04 19:32	80m	+5 / -	DK2NO	-5 / +6	4	Partial capture
09-04 19:31	80m	+4 / -	<...>	-2 / -	3	✓ Closing fragment
09-04 19:28	80m	+7 / -14	YO6LRV	-4 / -11	3	Partial capture
09-04 19:26	80m	+6 / -	OH1LA	- / +3	5	Partial capture
09-04 19:22	80m	+3 / -3	OK1DBE	-6 / +9	2	Partial capture
09-04 19:18	80m	+4 / -	<...>	-8 / -	6	✓ Closing fragment
09-04 19:16	80m	+5 / -	PB0ACU	- / -12	3	Partial capture
09-04 19:14	80m	+4 / -7	DK2NO	-1 / +5	7	Partial capture
09-04 19:12	80m	+5 / -	ES7GN	- / -5	3	Partial capture
09-04 18:41	80m	- / -	SP4OLP	+13 / -	3	Partial capture
09-03 20:11	80m	- / -6	RX3DTN	-2 / -	4	Partial capture
09-03 19:58	80m	- / -15	RZ6LE	-6 / -	2	Partial capture
09-03 19:49	80m	- / -	DD7EE	+10 / -	2	Partial capture
09-03 19:33	40m	- / -6	OE6TNO	+1 / -	3	Partial capture
09-03 19:33	80m	- / -	US1MM	+8 / -	4	Partial capture
09-03 19:33	80m	-4 / -	<...>	-8 / -	2	✓ Closing fragment
09-03 19:21	80m	- / -6	SP6IHE	0 / -	3	Partial capture
09-03 19:19	40m	- / -10	DL3JHK	-5 / -	4	Partial capture
09-03 19:14	80m	-8 / -	<...>	+15 / -	3	✓ Closing fragment
09-03 19:12	80m	- / -16	DL1JEL	+5 / -	7	Partial capture
09-03 19:12	80m	-3 / -14	IK2XYI	+1 / +3	5	Partial capture
09-03 19:00	40m	- / -8	DL3JHK	-4 / -	5	Partial capture
09-03 18:24	80m	-12 / -	<...>	+3 / -	2	✓ Closing fragment
09-03 18:24	80m	-6 / +8	DL1RI	+5 / -	2	Partial capture
09-03 10:45	40m	- / -	US1MM	-7 / -	7	Partial capture
09-03 08:02	40m	- / -19	OK1ACE	+1 / -	3	Partial capture
09-03 07:56	40m	- / +9	OM1AN	-2 / -	4	Partial capture
09-03 06:16	40m	- / +3	SP9XG	-16 / -	2	Partial capture
09-03 04:21	40m	- / -	<...>	+1 / -	2	✓ Closing fragment
09-02 13:39	40m	-20 / -	<...>	-18 / -	3	✓ Closing fragment
09-01 20:09	40m	- / -	DL7ACA	-4 / -	5	Partial capture
09-01 20:03	40m	- / +1	S59YL	+5 / -	3	Partial capture
09-01 19:47	40m	- / -1	PD8MD	+4 / -	3	Partial capture
09-01 19:40	40m	-18 / -	<...>	0 / -	2	✓ Closing fragment
09-01 18:58	80m	-14 / -	<...>	0 / -	4	✓ Closing fragment
09-01 18:53	80m	+3 / -	<...>	-6 / -	2	✓ Closing fragment
09-01 18:35	80m	-12 / -10	SQ5EXI	+6 / -3	2	Partial capture
09-01 18:33	80m	-6 / -	<...>	+5 / -	6	✓ Closing fragment
09-01 18:31	80m	0 / -	DO8ABS	- / -6	3	Partial capture
08-25 19:59	80m	- / -14	DM5JBN	+6 / -	2	Partial capture
08-25 19:56	80m	- / -	<...>	-7 / -	2	✓ Closing fragment
08-25 19:50	80m	- / -	<...>	-2 / -	2	✓ Closing fragment
08-25 19:49	80m	- / -3	RA6FYL	-16 / -	8	Partial capture
08-25 19:45	40m	- / -11	IK1GVQ	+2 / -	2	Partial capture
08-25 19:39	80m	-10 / -	<...>	-1 / -	5	✓ Closing fragment
08-25 19:38	80m	-14 / +8	OE3EVB	+7 / -	7	Partial capture
08-25 19:31	40m	- / -	KD0NDU	+4 / -	19	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
193415  +3 1309  DK2NO OL900LTV +06
193445  +5 1309  CQ OL900LTV (x2)
193545  +3 1309  OZ9GA OL900LTV -04
193615  +1 1309  <...> OL900LTV RR73
193630  -7 1173  OL900LTV <...> 73
193645  +4 1309  CQ OL900LTV (x5)
193900 +15 1309  OL900LTV UW5KW KO30 (x2)
193945  -4 1309  <...> OL900LTV RR73
194000 +10 1309  OL900LTV <...> 73

160m

UTC    dB Audio  Message
205600 +20  406  OL900LTV <...> 73
205630  -2 1256  OL900LTV OZ6P R-19 (x4)
205830  -5 1256  OL900LTV <...> 73
210145 -24 1754  <...> OL900LTV RR73
210200  +5 1754  OL900LTV OM2WQ R-06
210215 -18 1754  <...> OL900LTV RR73
210230  +9 1754  OL900LTV <...> 73 (x3)
185845  -7  521  OL900LTV RA4Y LO35
185930  -7 1244  OL900LTV <...> 73
190315 -21 1254  OL900LTV R2HM R-03

40m

UTC    dB Audio  Message
185500  +0 1102  OL900LTV <...> 73
190045  -4 1109  OL900LTV DL3JHK JO62 (x10)
192245  -1 1109  OL900LTV DM4ZPJ JO60
193345  +1 1108  OL900LTV OE6TNO R-06 (x3)

20m

UTC    dB Audio  Message
192045 -20 1905  OL900LTV G0MSE IO92
193815  -8 1993  OL900LTV DL9FCK R-08
193915 -13 1993  8B81JG OL900LTV 73
141015 -19 1924  CQ OL900LTV (x3)
191930 -18 1317  <...> OL900LTV
184815  -7 2432  OL900LTV <...> 73 (x2)
185900  -2  816  OL900LTV F5PBG R-10 (x2)
185945  -2 2441  OL900LTV PD4PJH JO21
190030  -1  816  OL900LTV F5PBG R-10
190400  -6 2439  G0ULG OL900LTV -16 (x2)

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.

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