OK1FRA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Czech Republic Most frequent locator attributed to this token: JN79

Receiver-side FT8 activity involving OK1FRA, decoded by SO8OO in southeastern Poland. 168 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 14 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-15.

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 168 FT8 messages attributed to OK1FRA as the transmitting token by decoded message structure across 14 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (73%), followed by 40 m (23%) and 10 m (5%). Most decodes (77%) fell within the six-hour window 07:00-13:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (92%); the estimated median was +5 dB.

Overview

168

Messages attributed

UTC dates decoded

Active 15-min windows

+5 dB

Estimated median S/N

Bands

40m · 38 20m · 122 10m · 8

First attributed message: 2026-06-08
Last attributed message: 2026-09-15 07:24 UTC

Observed FT8 message patterns

Attributed sample: 168 messages
Active dates: 14 UTC dates
Estimated median S/N: +5 dB
Estimated 10th-90th percentile: -7 to +15 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 13, strong (≥ -8 dB) 155.

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 OK1FRA in decoded directed-looking exchanges:

DL1BBO · Fed. Rep. of Germany ×2 HB9ITZ · Switzerland ×2 PD7JLP · Netherlands ×2 BD5CAM · China DN9AD · Fed. Rep. of Germany F4BYF · France GU0SUP · Guernsey PD7RF · Netherlands UX2SB · Ukraine DC5IU · Fed. Rep. of Germany DG7DBM · Fed. Rep. of Germany F4IVG · France

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 OK1FRA

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: JN79 · 70 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 491 km (approx.)
Last such locator decoded: 2026-09-15 07:22 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	OK1FRA S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-15 07:23	40m	+6 / -6	YO6LM	-7 / -	4	✓ Closing observed
09-15 07:22	40m	+9 / -	TK/4O7CC	- / -19	2	Partial capture
09-15 07:10	40m	+7 / -	HB9ITZ	- / -6	5	✓ Closing fragment
09-15 07:07	40m	+12 / -	MI0NWA	- / -5	3	✓ Closing fragment
09-15 07:03	40m	+12 / -	IZ8PPI	- / -10	2	✓ Closing fragment
09-15 07:02	40m	+14 / +1	GJ0KYZ	-9 / +9	5	✓ Full exchange observed
09-15 07:00	40m	+4 / -	PD/DO6NIK	- / -7	2	Partial capture
09-14 16:31	40m	+18 / -	5Q1X	-22 / -1	3	Partial capture
09-14 16:27	40m	+16 / -	PD0WL	-10 / +1	6	✓ Full exchange observed
09-14 16:27	40m	+17 / -20	EX7CQ	-4 / -2	6	✓ Full exchange observed
09-14 16:25	40m	+16 / -2	US2YW	+15 / +10	5	✓ Full exchange observed
09-14 16:23	40m	+16 / -	PD7JLP	-6 / -	5	✓ Full exchange observed
08-22 14:55	20m	- / -12	PD1PSR	-12 / -	5	Partial capture
08-22 14:52	20m	- / -7	F4IVG	+6 / -	3	✓ Closing fragment
08-22 14:03	20m	- / -2	ON4AOI	+2 / -	2	✓ Closing fragment
08-22 13:35	20m	- / -	PD1GOL	-9 / -	2	✓ Closing fragment
08-22 13:29	20m	-13 / -	EA9ADC	- / -	2	Partial capture
08-22 08:39	20m	+11 / -	PD7JLP	-6 / +9	4	✓ Full exchange observed
08-22 08:30	20m	+7 / -12	OM3PC	+13 / -14	7	✓ Full exchange observed
08-22 08:27	20m	+9 / -	OE7MAH	- / -6	2	Partial capture
08-22 08:27	20m	+8 / -	HB9ITZ	- / -5	3	✓ Closing fragment
08-22 08:24	20m	+5 / -	PD0MNO	- / +4	3	✓ Closing fragment
08-09 08:01	10m	- / +4	F4BYF	-9 / -	2	✓ Closing fragment
07-27 13:54	20m	- / -14	MW7RHR	-6 / -	2	Partial capture
07-18 10:11	20m	+10 / -	<...>	- / -5	3	Partial capture
07-18 09:51	20m	+6 / -	PE3PCH	- / +9	2	Partial capture
07-18 09:49	20m	+9 / -	PD4RJ	- / -10	2	Partial capture
07-18 09:44	20m	+7 / -	F8AEJ	- / -	3	✓ Closing fragment
07-11 08:48	20m	- / +6	MI0JZZ	-10 / -	2	✓ Closing fragment
07-11 08:42	20m	-3 / -	EA8CVR	- / -16	2	Partial capture
07-11 08:34	20m	+5 / -	HB9HDK	- / -5	2	✓ Closing fragment
07-11 08:25	20m	+4 / -	TF4WD	- / -17	2	✓ Closing fragment
07-09 14:51	20m	- / -	UA3FO	-20 / -	3	✓ Closing fragment
07-09 14:37	20m	- / -19	GW7JWR	-22 / -	5	Partial capture
07-06 08:29	20m	-2 / -	DC5IU	- / -16	2	✓ Closing fragment
07-06 08:27	20m	-3 / -	DL1BBO	-4 / +3	3	✓ Closing observed
07-06 08:26	20m	-2 / -	LZ4VR	- / -16	2	✓ Closing fragment
07-06 08:25	20m	-8 / -	OZ9FF	- / -	2	✓ Closing fragment
07-06 08:12	20m	+2 / -	HB9EXE	- / -	2	Partial capture
07-06 08:08	20m	0 / -	HB9EXE	- / -	2	Partial capture
07-06 08:02	20m	+2 / -	K2B	- / -	2	Partial capture
07-06 07:50	20m	+1 / -	IN3IJJ	- / -7	2	✓ Closing fragment
07-06 07:49	20m	0 / -	TI5RR	- / -12	2	Partial capture
06-30 09:19	10m	- / -20	LX1RFJ	-19 / -	2	Partial capture
06-29 14:01	20m	+2 / -	HB9DTC	- / -15	4	✓ Closing fragment
06-27 09:23	10m	+6 / -	BD5CAM	- / -16	3	✓ Closing fragment
06-27 09:18	10m	+4 / -	DN9AD	- / -3	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
071030  +7 2614  HB9ITZ OK1FRA JN79 (x5)
071415 -10 1647  OK1FRA HG8LXL KN06
071430  +7 2614  SQ8MJ OK1FRA JN79
071815 +10 2614  PD5MSC OK1FRA JN79 (x2)
072215  +8 2614  TK/4O7CC OK1FRA JN79 (x2)
072330  -9 1733  OK1FRA YO6LM KN25 (x2)
072415  +6 2614  YO6LM OK1FRA RR73
072430  -3 1733  OK1FRA YO6LM 73

20m

UTC    dB Audio  Message
084030  +5 2627  PD7JLP OK1FRA 73
132915 -13 2624  EA9ADC OK1FRA JN79 (x2)
133515  -6 1144  OK1FRA PD1GOL +16 (x2)
140345  +3 1370  OK1FRA ON4AOI -02 (x2)
145215  +7 2049  OK1FRA F4IVG -07 (x3)
145545 -10 2625  OK1FRA PD1PSR JO33 (x5)

10m

UTC    dB Audio  Message
092145  -2 2602  UX2SB OK1FRA RR73
092300  +0 2602  BD5CAM OK1FRA JN79 (x3)
074430  +5 2841  OK1FRA GU0SUP RR73
075700  -9  391  OK1FRA XV9T -09
084345  -8 2508  OK1FRA UN0GY +03
091915 -18 1943  OK1FRA LX1RFJ -20 (x2)
093430  -8  572  OK1FRA 8A1WWA -22
094815  +2 2994  OK1FRA HB9DKG +01
071345 -13 2001  OK1FRA PD7RF RR73
090430 -14  954  OK1FRA YL2KF +02
080130  -8  833  OK1FRA F4BYF +04 (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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