OK1TRA — 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: Czech Republic Most frequent locator attributed to this token: JN89

Receiver-side FT8 activity involving OK1TRA, decoded by SO8OO in southeastern Poland. 114 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-10-22.

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 114 FT8 messages attributed to OK1TRA as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (61%), followed by 40 m (39%). Most decodes (63%) fell within the six-hour window 22:00-04:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (66%); the estimated median was -4 dB.

Overview

114

Messages attributed

UTC dates decoded

Active 15-min windows

-4 dB

Estimated median S/N

Bands

80m · 69 40m · 45

First attributed message: 2026-06-13
Last attributed message: 2026-10-22 21:12 UTC

Observed FT8 message patterns

Attributed sample: 114 messages
Active dates: 5 UTC dates
Estimated median S/N: -4 dB
Estimated 10th-90th percentile: -15 to +6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 31, strong (≥ -8 dB) 75.

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 OK1TRA in decoded directed-looking exchanges:

TN8GD · Republic of the Congo 3A2MW · Monaco 4Z5NN · Israel F4JLS · France F5BRF · France F6FHZ · France IQ0AAX · Italy IQ4JO · Italy PD0OTH · Netherlands UN0GY · Kazakhstan WK2M · United States DL4DP · Fed. Rep. of Germany

Most frequent locator attributed to OK1TRA

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: JN89 · 37 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 348 km (approx.)
Last such locator decoded: 2026-10-18 22:46 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	OK1TRA S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-22 21:11	80m	-4 / -5	DO6LE	+9 / -	4	✓ Full exchange observed
10-18 22:44	40m	-14 / -	MW8OEG	- / -9	2	Partial capture
10-18 22:42	40m	-21 / -	VE3OP	- / -	2	Partial capture
10-18 22:40	40m	-21 / -8	UN0GY	-8 / -2	5	✓ Full exchange observed
10-18 22:37	40m	-11 / -	N5CDL	- / -	2	Partial capture
10-18 22:34	40m	-15 / -8	IQ4JO	-9 / -	4	✓ Closing observed
10-18 22:31	40m	-9 / +2	F4JLS	-4 / -	4	✓ Full exchange observed
10-18 22:28	40m	-4 / -14	4Z5NN	-2 / -3	5	✓ Full exchange observed
10-18 18:33	40m	- / -10	ON4KBU	-3 / -	3	Partial capture
10-08 03:39	80m	-4 / +4	OK1AY	+12 / -	6	✓ Full exchange observed
10-08 03:36	80m	+3 / -9	OK6RV	+3 / +4	5	✓ Full exchange observed
10-08 03:33	80m	+2 / -8	DL9KM	-5 / -10	5	✓ Full exchange observed
10-08 03:31	80m	0 / +3	IN3IBW	0 / +5	5	✓ Full exchange observed
10-08 03:27	80m	+6 / -5	UT2AU	+8 / -3	5	✓ Full exchange observed
10-08 03:26	80m	-1 / -14	G3TKT	-18 / -24	6	✓ Full exchange observed
10-08 03:24	80m	+7 / -	SP4BB	- / +6	3	✓ Closing fragment
10-08 03:20	80m	+1 / 0	OE5DML	+8 / -6	5	✓ Full exchange observed
10-08 03:18	80m	0 / +1	DO5OT	+9 / -	5	✓ Full exchange observed
10-08 03:18	80m	+4 / -6	F1PBZ	+3 / -1	5	✓ Full exchange observed
10-08 03:18	80m	+2 / -	F5RAV	-8 / -7	3	Partial capture
10-08 03:16	80m	+1 / -14	R1AV	+5 / +10	5	✓ Full exchange observed
10-08 03:15	80m	+2 / -2	HA8LD	-10 / -5	5	✓ Full exchange observed
10-08 03:14	80m	+2 / -12	YO3KWJ	+10 / -	3	Partial capture
10-08 03:11	80m	+3 / -	US5EAA	+2 / +3	3	Partial capture
10-08 03:11	80m	+8 / -	F5RAV	-6 / -7	4	Partial capture
10-08 03:10	80m	+7 / +1	DL8TV	+4 / -	5	✓ Full exchange observed
10-08 03:09	80m	+6 / -7	SQ5ANT	-10 / +6	5	✓ Full exchange observed
10-08 03:08	80m	+7 / -6	EC3A	-7 / -9	4	✓ Full exchange observed
10-08 03:07	80m	+6 / -3	DL4DP	-12 / -11	4	✓ Full exchange observed
10-08 03:05	80m	+2 / -	SQ2RAD	- / -	3	✓ Closing fragment
10-02 19:49	40m	- / -21	IQ0AAX	-16 / -	2	✓ Closing fragment
08-24 02:55	40m	- / -13	WK2M	-1 / -	2	✓ Closing fragment
08-24 02:33	20m	- / -19	3A2MW	-16 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
033630  +3 1963  OK1TRA OK6RV -09
033645  +0 2292  OK6RV OK1TRA R+04
033700  +3 1963  OK1TRA OK6RV RR73
033715  +8 2292  OK6RV OK1TRA 73
033830  -1 2292  DL4HTK OK1TRA JN89
033900 -11 2292  OK1AY OK1TRA JN89
033915  +9 1637  OK1TRA OK1AY +04
033930  +1 2292  OK1AY OK1TRA R+27 (x2)
034015 +15 1637  OK1TRA OK1AY RR73
034030  -2 2292  OK1AY OK1TRA 73
211130 +10 1922  OK1TRA DO6LE -05
211145  -6 1559  DO6LE OK1TRA R+13
211200  +8 1922  OK1TRA DO6LE RR73
211215  -3 1559  DO6LE OK1TRA 73

40m

UTC    dB Audio  Message
223600 -15 2290  BG5JGG OK1TRA JN89
223715  -9 1919  N5CDL OK1TRA JN89 (x2)
223845 -12 1920  K1XO OK1TRA JN89
224000 -21 1920  MW8OEG OK1TRA JN89
224030 -18 1920  UN0GY OK1TRA JN89
224045 -11 2529  OK1TRA UN0GY -08
224100 -22 1920  UN0GY OK1TRA R-02
224115  -6 2529  OK1TRA UN0GY RR73
224130 -23 1920  UN0GY OK1TRA 73
224230 -20 1920  VE3OP OK1TRA JN89 (x2)
224400 -14 1921  MW8OEG OK1TRA R-09 (x2)
224615 -15 1937  BD6KDG OK1TRA JN89

10m

UTC    dB Audio  Message
143700 -17  907  OK1TRA TN8GD RR73

20m

UTC    dB Audio  Message
023345 -13 1048  OK1TRA 3A2MW -19 (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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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